Apparatus, method, and process for manufacturing mobility components with molecular bonding

Abstract

An apparatus for manufacturing mobility parts according to various embodiments of the present invention is disclosed. An apparatus for manufacturing mobility parts to which molecular bonding is applied comprises: a first surface modification device for modifying the surface of a plastic member to form functional groups; a second surface modification device for modifying the surface of a metal member to form functional groups; an adhesive coating device for coating an adhesive on at least one surface modified surface of the surface-modified plastic member and the metal member; a drying device for drying the member to which the adhesive is applied; and a laminator for laminating the metal member and the plastic member; wherein the adhesive coating device is a slot die coater with a bar coater built into a microchannel.

Description

Technology Field

[0001] The present invention aims to provide a method, apparatus, and process for manufacturing mobility parts. Specifically, the invention aims to provide an apparatus, method, and process for manufacturing mobility parts with molecular bonding applied using a slot die coater with a bar coater integrated with a microchannel. Background Technology

[0003] In the modern mobility industry, the use of composite materials combining plastics and metals is rapidly increasing to achieve weight reduction, improved fuel efficiency, and diverse functionalities. Particularly in mobility sectors such as automobiles, aircraft, and ships, active efforts are being made to maximize the advantages of each material by bonding metals, which provide structural rigidity, with plastics, which offer excellent lightness and processability.

[0004] Conventional plastic-metal joining technologies have primarily utilized mechanical fastening, welding, and adhesive bonding. Mechanical fastening methods, which join two materials using bolts, screws, or rivets, have disadvantages such as stress concentration at the connection point, increased weight, and sealing issues. In the case of welding, its application is limited due to the differences in physical properties between plastics and metals, and it is difficult to ensure consistent joining quality.

[0005] Although adhesive bonding methods provide relatively superior bonding performance compared to the methods mentioned above, they still have some technical limitations. In conventional adhesive bonding methods, the bonding between the adhesive and the substrate relies primarily on physical adsorption or mechanical anchoring; therefore, bonding strength may decrease or delamination may occur in harsh operating environments such as high temperature, high humidity, and vibration. Additionally, if the thickness of the adhesive layer is uneven or excessively thick, it can cause stress concentration or cracking at the bonding site.

[0006] Particularly for mobility components, safety and reliability are critical requirements, making it essential to ensure long-term durability and consistent bond strength. This necessitates molecular-level bonding technology based on chemical bonding between the adhesive and the substrate, and requires the development of manufacturing technologies capable of achieving optimal bonding performance through precise adhesive application and controlled drying processes.

[0007] Furthermore, while conventional adhesive coating methods have generally utilized sprays, brushes, and rollers, these techniques have limitations, such as difficulty in controlling the uniformity of adhesive thickness and potential issues regarding environmental contamination or worker safety. Therefore, there is an urgent need to develop new manufacturing technologies that enable precise and uniform adhesive application while simultaneously ensuring productivity and quality.

[0008] In this regard, Korean registered patent No. 10-2718642 discloses a metal-polymer bonding method. The problem to be solved

[0010] The present invention, devised in response to the aforementioned background technology, aims to provide a method, apparatus, and process for manufacturing a mobility component to which molecular bonding is applied.

[0011] The technical problems of the present invention are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0013] According to one embodiment of the present invention for solving the problem described above, a method, apparatus, and process for manufacturing a mobility component to which molecular bonding is applied are disclosed.

[0014] One embodiment of the present disclosure for solving the aforementioned problem may provide an apparatus for manufacturing a mobility part with molecular bonding applied, comprising: a first surface modification device for modifying the surface of a plastic member to form functional groups; a second surface modification device for modifying the surface of a metal member to form functional groups; an adhesive coating device for coating an adhesive on at least one surface modified surface of the surface-modified plastic member and the metal member; a drying device for drying the member coated with the adhesive; and a laminator for laminating the metal member and the plastic member; wherein the adhesive coating device is a slot die coater with a bar coater built into a microchannel.

[0015] In addition, the bar coater-embedded slot die coater with the above-mentioned microchannel may include: a housing having a fluid passage formed inside; an adhesive storage unit in which adhesive introduced from the outside is accumulated; a microchannel unit having a plurality of microchannels to distribute the adhesive introduced from the adhesive storage unit and discharge the adhesive through a plurality of discharge ports; and a bar for coating the adhesive introduced from the microchannel unit onto a coating target.

[0016] In addition, each of the above plurality of microchannels may have a diameter of 500 micrometers or less.

[0017] In addition, the microchannel section comprises: a main channel communicating with the adhesive storage section; and a plurality of branch channels branching from the main channel and connected to respective discharge ports;

[0018] It may include.

[0019] In addition, the functional group may be at least one of a hydroxyl group, a silanol group, a carboxyl group, and an amino group.

[0020] In addition, the first surface modification device and the second surface modification device include at least one of an oxygen plasma device, a UV generator, and a corona generator, and the functional group may include at least one of a hydroxyl group and an amino group.

[0021] In addition, the adhesive may include a diglidyl ether compound and a diamine compound.

[0022] In addition, the adhesive may include a diisocyanate compound.

[0023] In addition, the drying device can dry the applied adhesive until it reaches a thickness of 10 nm or less.

[0024] In addition, the device for manufacturing the mobility part to which the above molecular bonding is applied may further include a cleaning device for cleaning the plastic member and the metal member before surface modification.

[0025] In addition, the adhesive coating device may include a first adhesive coating device that applies an adhesive to one surface of a plastic member.

[0026] In addition, the adhesive coating device may include a second adhesive coating device that applies adhesive to one surface of a metal member.

[0027] In addition, the adhesive coating device may further include a first adhesive coating device for applying adhesive to one surface of a plastic member.

[0028] In addition, the device for manufacturing the mobility part to which the above molecular bonding is applied may further include a forming device for molding the laminated member.

[0029] Another embodiment of the present disclosure for solving the aforementioned problem may provide a method for manufacturing a mobility component to which molecular bonding is applied, comprising: a step of modifying the surface of a plastic member to form functional groups using a first surface modification device; a step of modifying the surface of a metal member to form functional groups using a second surface modification device; a step of coating an adhesive on at least one surface modified surface of the surface-modified plastic member and the metal member using a bar coater-embedded slot die coater with a microchannel applied; a step of drying the member coated with the adhesive using a drying device; and a step of laminating the metal member and the plastic member using a laminator.

[0030] In addition, the bar coater-embedded slot die coater with the above-mentioned microchannel may include: a housing having a fluid passage formed inside; an adhesive storage unit in which adhesive introduced from the outside is accumulated; a microchannel unit having a plurality of microchannels to distribute the adhesive introduced from the adhesive storage unit and discharge the adhesive through a plurality of discharge ports; and a bar for coating the adhesive introduced from the microchannel unit onto a coating target.

[0031] In addition, each of the above plurality of microchannels may have a diameter of 500 micrometers or less.

[0032] Another embodiment of the present disclosure for solving the aforementioned problem may provide a process for manufacturing a mobility component with molecular bonding applied, comprising: a first surface modification process for modifying the surface of a plastic member to form functional groups; a second surface modification process for modifying the surface of a metal member to form functional groups; an adhesive coating process for coating an adhesive on at least one surface modified surface of the plastic member and the metal member using a bar coater-embedded slot die coater with microchannels; a drying process for drying the member coated with the adhesive; and a laminating process for laminating the metal member and the plastic member.

[0033] In addition, the bar coater-embedded slot die coater with the above-mentioned microchannel may include: a housing having a fluid passage formed inside; an adhesive storage unit in which adhesive introduced from the outside is accumulated; a microchannel unit having a plurality of microchannels to distribute the adhesive introduced from the adhesive storage unit and discharge the adhesive through a plurality of discharge ports; and a bar for coating the adhesive introduced from the microchannel unit onto a coating target.

[0034] In addition, each of the above plurality of microchannels may have a diameter of 500 micrometers or less. Effects of the invention

[0036] According to the present invention, an apparatus, method, and process for manufacturing a mobility component having significantly improved bonding strength and durability compared to conventional physical bonding methods can be provided.

[0037] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by a person skilled in the art from the description below. Brief explanation of the drawing

[0039] FIGS. 1 to 3 are drawings illustrating an apparatus according to an embodiment of the present invention. FIG. 4 is a drawing for explaining how a plastic member and a metal member are combined according to one embodiment of the present disclosure. FIG. 5 is a drawing for explaining a method of manufacturing a mobility component according to one embodiment of the present disclosure. FIG. 6 is a drawing for explaining a bar coater-embedded slot die according to one embodiment of the present disclosure. FIGS. 7 to 9 are drawings for explaining a bar coater-embedded slot die coater with a microchannel applied according to one embodiment of the present disclosure. FIG. 10 is a conceptual diagram illustrating a meniscus shearing solution coater according to one embodiment of the present disclosure. FIGS. 11 to 13 are drawings for illustrating a meniscus shearing solution coater with a microchannel applied according to one embodiment of the present disclosure. FIG. 14 is a drawing for explaining an apparatus for manufacturing a mobility component with molecular bonding applied using a reverse offset printing coater according to one embodiment of the present disclosure. FIG. 15 is a drawing for illustrating a reverse offset printing coater according to one embodiment of the present disclosure. FIG. 16 is a drawing for explaining a blanket roller according to one embodiment of the present disclosure. FIG. 17 is a drawing for explaining a method of manufacturing a mobility part with molecular bonding applied using a reverse offset printing coater according to one embodiment of the present disclosure. FIG. 18 is a drawing for explaining a method of manufacturing a panel for an automobile side door according to one embodiment of the present disclosure. FIG. 19 is a drawing for explaining a method, apparatus, and process for manufacturing a panel for an automobile trunk according to one embodiment of the present disclosure. FIG. 20 is a drawing for explaining a method, apparatus, and process for manufacturing a mobility part with molecular bonding applied using a bar coater-embedded slot die coater equipped with a wire bar according to one embodiment of the present disclosure. FIG. 21 is a cross-section of a wire bar to illustrate another wire bar of one embodiment of the present disclosure. FIG. 22 is a drawing for explaining a computing module according to one embodiment of the present disclosure. FIG. 23 is a drawing for explaining surface modification according to another embodiment of the present disclosure. FIG. 24 is a drawing for explaining the components of an adhesive according to another embodiment of the present disclosure. FIG. 25 is a drawing for explaining that a plastic member and a metal member are bonded by forming a molecular bond according to one embodiment of the present disclosure. FIG. 26 is a drawing illustrating that a plastic member and a metal member are bonded by forming a molecular bond according to another embodiment of the present disclosure. FIG. 27 is a drawing illustrating that a plastic member and a metal member are bonded by forming a molecular bond according to another embodiment of the present disclosure. FIG. 28 is a drawing illustrating that a plastic member and a metal member are bonded by forming a molecular bond according to another embodiment of the present disclosure. Specific details for implementing the invention

[0040] Various embodiments are now described with reference to the drawings. In this specification, various descriptions are provided to facilitate an understanding of the invention. However, it is evident that these embodiments can be practiced without such specific descriptions.

[0041] As used herein, terms such as “component,” “module,” “system,” etc. refer to computer-related entities, hardware, firmware, software, combinations of software and hardware, or executions of software. For example, a component may be, but is not limited to, a procedure executed on a processor, a processor, an object, an execution thread, a program, and / or a computer. For example, both an application executed on a computing device and the computing device itself may be a component. One or more components may reside within a processor and / or an execution thread. A component may be localized within a single computer. A component may be distributed among two or more computers. Additionally, these components may be executed from various computer-readable media having various data structures stored therein. Components may communicate through local and / or remote processes, for example, according to signals having one or more data packets (e.g., data from a component interacting with another component in a local system or distributed system, and / or data transmitted through signals to other systems and networks such as the Internet).

[0042] Furthermore, the term "or" is intended to mean an implicit "or" rather than an exclusive "or." That is, unless otherwise specified or evident from the context, "X uses A or B" is intended to mean one of the natural implicit substitutions. In other words, if X uses A; if X uses B; or if X uses both A and B, "X uses A or B" may apply to any of these cases. Additionally, the term "and / or" as used herein should be understood to refer to and include all possible combinations of one or more of the enumerated related items.

[0043] Additionally, the terms “comprising” and / or “comprising” should be understood to mean that such features and / or components are present. However, the terms “comprising” and / or “comprising” should be understood not to exclude the presence or addition of one or more other features, components and / or groups thereof. Furthermore, unless otherwise specified or clearly evident from the context to indicate a singular form, the singular in this specification and claims should generally be interpreted to mean “one or more.”

[0044] Those skilled in the art should recognize that the various exemplary logical blocks, configurations, modules, circuits, means, logics, and algorithmic steps described in connection with the embodiments disclosed herein may be implemented in electronic hardware, computer software, or a combination of both. To clearly exemplify the interchangeability of hardware and software, various exemplary components, blocks, configurations, means, logics, modules, circuits, and steps have been generally described above in terms of their functionality. Whether such functionality is implemented in hardware or software depends on the specific application and design constraints imposed on the overall system. Skilled technicians may implement the described functionality in various ways for each specific application. However, such decisions regarding implementation should not be interpreted as moving out of the scope of the invention.

[0045] The description of the presented embodiments is provided to enable those skilled in the art to use or practice the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein may be applied to other embodiments without departing from the scope of the present invention. Thus, the present invention is not limited to the embodiments presented herein. The present invention should be interpreted in the broadest possible scope consistent with the principles and novel features presented herein.

[0046] In this specification, the term "computer" refers to any type of hardware device comprising at least one processor, and may be understood to include software configurations operating on said hardware device according to the embodiments. For example, the term "computer" may be understood to include smartphones, tablet PCs, desktops, laptops, and user clients and applications running on each of these devices, but is not limited thereto.

[0047] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0048] Each step described in this specification is described as being performed by a computer, but the subject of each step is not limited thereto, and depending on the embodiment, at least some of each step may be performed on different devices.

[0049] FIGS. 1 to 3 are drawings illustrating an apparatus according to an embodiment of the present invention.

[0050] Referring to FIGS. 1 to 3, an apparatus for manufacturing a mobility component according to one embodiment of the present invention may include at least one of a first cleaning device (1011), a second cleaning device (1012), a first surface modification device (1021), a second surface modification device (1022), a first adhesive coating device (1031), a second adhesive coating device (1032), a first drying device (1041), a second drying device (1042), a laminator (105), and a forming device (106).

[0051] According to one embodiment of the present disclosure, an apparatus for manufacturing a mobility part can manufacture a mobility part by combining a plastic member and a metal member.

[0052] In this case, the mobility parts may include, but are not limited to, interior and exterior automotive parts such as panels for automotive side doors, panels for automotive trunks, panels for automotive hoods, panels for automotive roofs, automotive bumpers, automotive fenders, automotive dashboards, automotive center consoles, automotive door trims, and automotive pillar trims.

[0053] In addition, aircraft parts such as fuselage panels, wing structures, cockpit panels, and cabin interior materials, or ship parts such as hull panels, deck materials, and cabin interior materials may also be included, but are not limited thereto.

[0054] Furthermore, electric drive system components such as battery housings, motor housings, and charging port covers for electric vehicles, or eco-friendly mobility components such as fuel cell stack housings and hydrogen tank brackets for hydrogen fuel cell vehicles may also be included, but are not limited thereto.

[0055] Plastic members may include, but are not limited to, various members such as polypropylene (PP), fiber reinforced plastic (FRP), polyamide (PA), polycarbonate (PC), acrylonitrile butadiene styrene (ABS), polyoxymethylene (POM), polybutylene terephthalate (PBT), polyphenylene oxide (PPO), polyether ether ketone (PEEK), glass fiber reinforced polypropylene (GFPP), carbon fiber reinforced plastic (CFRP), and glass fiber reinforced polyamide (GFPA).

[0056] The metal member may include, but is not limited to, various metal materials such as aluminum (Al), aluminum alloy, stainless steel, carbon steel, alloy steel, high-strength steel, magnesium (Mg), magnesium alloy, titanium (Ti), titanium alloy, zinc (Zn), zinc alloy, copper (Cu), and copper alloy.

[0057] The cleaning device (1011, 1012) can clean plastic members and metal members. For example, the first cleaning device (1011) can clean plastic members, and the second cleaning device (1012) can clean metal members. Although the first cleaning device (1011) and the second cleaning device (1012) have been described separately for convenience of explanation, according to one embodiment of the invention, the device for cleaning plastic members and the device for cleaning metal members may be the same.

[0058] The cleaning device (1011, 1012) can perform the role of improving the efficiency of the subsequent surface modification process by removing contaminants present on the surface of the plastic member and the metal member. Surface contaminants may include cutting fluid, rust-preventive oil, release agent, dust, particulate matter, oxide film, organic residue, etc. generated during the processing process, and these contaminants may interfere with the formation of functional groups during the surface modification process, thereby degrading molecular bonding performance.

[0059] The cleaning device may include at least one of a solvent cleaning method, an ultrasonic cleaning method, a plasma cleaning method, and an alkaline cleaning method. In the case of a solvent cleaning method, organic solvents such as isopropyl alcohol (IPA), acetone, methyl ethyl ketone (MEK), and toluene, or water-based cleaning agents containing surfactants may be used. For plastic components, mild cleaning conditions may be applied considering the chemical stability of the material, and for metal components, relatively strong cleaning conditions may be applied to remove the oxide film.

[0060] Ultrasonic cleaning methods can effectively remove even fine contaminants by utilizing the cavitation effect in a frequency range of 20-100 kHz, while plasma cleaning methods can decompose and remove organic contaminants using low-temperature atmospheric pressure plasma. After cleaning, residual cleaning agents or moisture can be completely removed through a pure water (DI water) rinse and a drying process using nitrogen gas to ensure an optimal surface condition.

[0061] The surface modification device (1021, 1022) can modify the surface of a plastic member and a metal member to form functional groups on the surface of the plastic member and the metal member. For example, the first surface modification device (1021) can modify one surface of a plastic member to form functional groups, and the second surface modification device (1022) can modify one surface of a metal member to form functional groups.

[0062] The surface modification device (1021, 1022) can improve chemical bonding strength with the adhesive by introducing reactive functional groups into the plastic member and the metal member through physical or chemical methods. For example, the surface modification device (1021, 1022) can form at least one functional group among a hydroxyl group (-OH), a carboxyl group (-COOH), a carbonyl group (C=O), and an amino group (NH2) on the surface of the plastic member and the metal member.

[0063] In this case, the surface modification device (1021, 1022) can be implemented as at least one of an oxygen plasma device, a UV generator, and a corona generator.

[0064] For example, the surface modification device (1021, 1022) can form hydroxyl groups (-OH) on the surface of a plastic member and a metal member by applying oxygen plasma for 30 to 120 seconds. Specifically, the surface modification device (1021, 1022) can form hydroxyl groups (-OH) on the surface of a plastic member and a metal member by applying oxygen plasma for 30 to 120 seconds at an RF frequency of 13.56 MHz with an output of 50 to 200 W.

[0065] As another example, a surface modification device (1021, 1022) can form hydroxyl groups (-OH) on the surface of a plastic member and a metal member by irradiating UV light for 10 to 30 minutes. Specifically, the surface modification device (1021, 1022) can form hydroxyl groups on the surface by irradiating UV light of wavelengths of 185 nm and 254 nm for 10 to 30 minutes at an intensity of 10-50 mW / cm².

[0066] As another example, the surface modification device (1021, 1022) can form hydroxyl groups on the surface of a plastic member and a metal member by generating a corona discharge for 60 to 120 seconds. Specifically, the surface modification device (1021, 1022) can form hydroxyl groups on the surface of a plastic member and a metal member by applying a high voltage of 10-30 kV to the electrode to generate a corona discharge for 60 to 120 seconds.

[0067] As another example, the surface modification device (1021, 1022) can form functional groups through a chemical method. For example, the surface modification device (1021, 1022) exposes a plastic member and / or a metal member to oxygen plasma treatment. For example, the surface modification device (1021, 1022) can form hydroxyl groups (-OH) on the surface of the plastic member and / or metal member by exposing it at room temperature for 30 seconds to 180 seconds. Additionally, the member with the formed hydroxyl groups can be treated with an APTES (3-aminopropyltriethoxysilane) solution. APTES is a silane coupling agent and can be reacted in an ethanol (EtOH) solvent at room temperature for 24 hours. In this process, the ethoxy group (-OEt) of the APTES molecule undergoes a condensation reaction with the hydroxyl group on the substrate surface to form a siloxane bond (-Si-O-), and at the same time, the amino group (-NH2) of APTES is exposed on the surface to form an amino group (NH2).

[0068] Referring to FIGS. 1 to 3, the first surface modification device (1021) can form functional groups on the surface of a plastic member, and the second surface modification device (1022) can form functional groups on the surface of a metal member.

[0069] The adhesive coating device (1031, 1032) can coat an adhesive on one side of a surface-modified member. For example, the first adhesive coating device (1031) can coat an adhesive on one side of a surface-modified plastic member. Additionally, the second adhesive coating device (1032) can coat an adhesive on one side of a surface-modified metal member.

[0070] According to one embodiment of the present disclosure, a mobility component manufacturing device (100) can coat an adhesive on a surface-modified surface of at least one of a plastic member and a metal member. For example, referring to FIG. 1, the mobility component manufacturing device (100) may include a first adhesive coating device (1031), and the first adhesive coating device (1031) can coat an adhesive on a surface-modified surface of a plastic member.

[0071] For another example, referring to FIG. 2, the mobility part manufacturing device (100) may include a second adhesive coating device (1032), and the second adhesive coating device (1032) may coat an adhesive on a surface-modified one side of a metal member.

[0072] For another example, referring to FIG. 3, the mobility part manufacturing device (100) may include a first adhesive coating device (1031) and a second adhesive coating device (1032), the first adhesive coating device (1031) may perform a coating on a surface modified one side of a plastic member, and the second adhesive coating device (1032) may perform a coating on a surface modified one side of a metal member.

[0073] In this case, the adhesive coating device (1031, 1032) may be implemented as one of a bar coater-embedded slot die device, a reverse offset printing coater, a meniscus shearing solution coater, a bar coater-embedded slot die coater with a microfluidic channel, or a meniscus shearing solution coater with a microfluidic channel, but is not limited thereto. A detailed coating method is described in detail below.

[0074] According to one embodiment of the present invention, the thickness of the adhesive applied by the adhesive coating device (1031, 1032) can be controlled to 50 μm or less. In order to effectively implement chemical bonding at the molecular level, it is essential to precisely control the thickness of the adhesive layer, and the specific configuration of the adhesive coating device for this purpose is described in detail below.

[0075] According to one embodiment of the present disclosure, a mobility part manufacturing device (100) may include a drying device (1041, 1042). For example, the mobility part manufacturing device (100) may include at least one of a first drying device (1041) and a second drying device (1042).

[0076] The first drying device (1041) is positioned at the rear end of the first adhesive coating device (1031) to dry the adhesive applied to the plastic member. As a result, the solvent of the adhesive applied to the plastic member evaporates, and the adhesive applied to the plastic member can be formed with a thickness of 10 nm or less.

[0077] The second drying device (1042) is positioned at the rear end of the first adhesive coating device (1032) to dry the adhesive applied to the metal member. As a result, the solvent of the adhesive applied to the metal member evaporates, and the adhesive applied to the metal member can be formed with a thickness of 10 nm or less.

[0078] Referring to FIG. 1, the mobility part manufacturing device (100) may include a first drying device (1041); referring to FIG. 2, the mobility part manufacturing device (100) may include a second drying device (1042); and referring to FIG. 3, the mobility part manufacturing device (100) may include the first drying device (1041) and the second drying device (1042).

[0079] The drying device (1041, 1042) may be implemented in at least one of a room temperature drying method, a hot air drying method, an infrared (IR) drying method, an ultraviolet (UV) drying / curing method, and a microwave drying method. For example, the drying device (1041, 1042) may dry a plastic member and / or a metal member at room temperature for 12 hours. Additionally, the drying device (1041, 1042) may 60-120 The solvent can be evaporated from the surface of the adhesive by circulating air heated to a certain temperature. Additionally, the drying device (1041, 1042) can perform drying by directly heating the adhesive layer by irradiating infrared rays with a wavelength of 2-10 μm. Additionally, the drying device (1041, 1042) can induce a chemical curing reaction while simultaneously evaporating the solvent of the adhesive by irradiating ultraviolet rays in the range of wavelengths of 254-400 nm. Additionally, the drying device (1041, 1042) can evaporate the solvent by using microwaves of 2.45 GHz to vibrate polar solvent molecules inside the adhesive.

[0080] According to another embodiment of the present disclosure, the adhesive coating device (1031, 1032) may be omitted (not shown). Additionally, the drying device (1041, 1042) may also be omitted. For example, depending on the surface modification method used in the surface modification device (1021, 1022), the adhesive coating process may be omitted, and when the adhesive coating process is omitted, the mobility part manufacturing device (100) may not include the adhesive coating device (1031, 1032) and the drying device (1041, 1042).

[0081] The laminator (105) can laminate a plastic member and a metal member. In this case, the surface-modified side of the plastic member and the surface-modified side of the metal member can be combined.

[0082] For example, the laminator (105) can perform lamination by applying pressure of 10 to 15 MPa for 9 to 12 hours using upper and lower flat plate presses. In this case, the pressure plate can be heated to 60 to 120 degrees to promote molecular bonding. Specifically, the laminator (105) can perform lamination by applying pressure of 10 to 15 MPa for 12 hours using a pressure plate heated to 90 degrees.

[0083] As another example, the laminator (105) can be implemented as a roll laminator. The laminator (105) implemented as a roll laminator can improve productivity through a continuous lamination process. The roll laminator can perform lamination by applying pressure and heat simultaneously while passing a plastic member and a metal member between upper and lower rollers.

[0084] Specifically, the rollers of the roll laminator can be set to a line pressure of 1 to 5 MPa, and the roller surface temperature can be heated to 80 to 150 degrees. The feed speed of the roll laminator can be controlled to process for 30 to 60 minutes and can be optimized according to the thickness and physical properties of the material to be laminated.

[0085] The forming device (105) can form a composite member in which a plastic member and a metal member are laminated. For example, the forming device (105) can form a laminated member by using a mold heated to 120 to 200 degrees in the shape of a mobility part and applying pressure of 40 to 60 MPa for 30 minutes.

[0086] FIG. 4 is a drawing for explaining how a plastic member and a metal member are combined according to one embodiment of the present disclosure.

[0087] Referring to FIG. 4, functional groups may be formed on one surface of a surface-modified plastic member and one surface of a metal member. In this case, the functional group may be a hydroxyl group (OH). Additionally, the functional group may be an amino group (NH2). An adhesive may be applied to at least one surface of the plastic member and the metal member on which the functional group is formed.

[0088] For example, the adhesive can be applied to a surface-modified surface of a plastic member. Additionally, the adhesive can be applied to a surface-modified surface of a metal member. Additionally, the adhesive can be applied to a surface-modified surface of both a plastic member and a metal member.

[0089] According to one embodiment of the present disclosure, a plastic member and a metal member may be laminated. In this case, a laminator (105) may form a molecular bonding layer between the plastic member and the metal member by applying pressure and temperature to the plastic member and the metal member.

[0090] FIG. 5 is a drawing for explaining a method of manufacturing a mobility component according to one embodiment of the present disclosure.

[0091] A method for manufacturing a mobility component according to one embodiment of the present disclosure may include at least one of a cleaning step (S5011, S5012), a surface modification step (S5021, S5022), an adhesive coating step (S5031, S5032), a drying step (S5041, 5042), a lamination step (S505), and a forming step (S506).

[0092] According to one embodiment of the present disclosure, a plastic member may be cleaned in the first cleaning step (S5011). Additionally, a metal member may be cleaned in the second cleaning step (S5012). A detailed description thereof has been provided above in FIGS. 1 to 3.

[0093] According to one embodiment of the present disclosure, in the first surface modification step (S5021), the surface of a plastic member may be modified by a first surface modification device (1021) to form functional groups. Additionally, in the second surface modification step (S5022), the surface of a metal member may be modified by a second surface modification device (1022) to form functional groups. A detailed explanation thereof has been provided above in FIGS. 1 to 3.

[0094] According to one embodiment of the present disclosure, in the first adhesive coating step (S5031), one surface modified of a plastic member may be coated by the first coating device (1031). Additionally, in the second adhesive coating step (S5032), one surface modified of a metal member may be coated by the second coating device (1032).

[0095] In FIG. 5, it is depicted that both the surface of the plastic member and the surface of the metal member are coated according to one embodiment, but according to embodiments of the present invention, at least one of the surface of the plastic member and the surface of the metal member may be coated.

[0096] This has been described in detail in FIGS. 1 to 3.

[0097] According to one embodiment of the present disclosure, in the drying step (S5041, S5042), one surface of a plastic member and / or a metal member to which an adhesive has been applied may be dried. For example, a first drying device (1041) may dry the adhesive applied to a plastic member, and a second drying device (1042) may dry the adhesive applied to a metal member.

[0098] In this case, the method for manufacturing the mobility part may optionally include a first drying step (S5041) and a second drying step (S5042) depending on the adhesive application method. For example, the method for manufacturing the mobility part may include a first drying step (S5041) when a plastic member is coated, a second drying step (S5042) when a metal member is coated, and both the first drying step (S5041) and the second drying step (S5042) when both a plastic member and a metal member are coated. This has been described in detail in FIGS. 1 to 3.

[0099] In the lamination step (S505), the rapid member and the plastic member may be laminated. Additionally, in the forming step (S506), the laminated member may be molded. This has also been described in detail in FIGS. 1 to 3.

[0100] Although the above-described embodiments specifically explain a method for manufacturing mobility components, the present invention is not limited thereto. The technical concept of the present invention can be applied not only to the method for manufacturing mobility components but also to the manufacturing process, the manufacturing system, and the entire component processing process using the same.

[0101] Furthermore, the present invention may also be implemented as a process consisting of individual manufacturing steps, and each process step may be carried out independently or in combination. Those skilled in the art will understand that various modifications and changes to the manufacturing method, manufacturing process, process conditions, process sequence, etc., are possible without departing from the essential characteristics of the present invention.

[0102] FIG. 6 is a drawing for explaining a bar coater-embedded slot die according to one embodiment of the present disclosure.

[0103] According to one embodiment of the present disclosure, a bar coater-embedded slot die coating device has a bar coater embedded in a slot die that supplies coating material, and can finely control and form the thickness and distribution of the coating material provided to the slot die.

[0104] To explain in more detail, the bar coater-embedded slot die (600) is supplied with a coating material to be coated inside the device (630), and a slot of a predetermined size is formed in the discharge port portion (620) through which the coating material is discharged, so that the coating liquid is discharged through the slot and the coating material is applied to the surface of the film. At this time, the bar coater-embedded slot die (600) is characterized by having a bar coater (610) embedded in the slot through which the coating material is discharged. The bar coater can be formed as a bar in the shape of a rod, so that the longitudinal portion of the bar coater is arranged parallel to the longitudinal direction of the slot and can be provided inside the device.

[0105] In this case, the interior of the bar coater-embedded slot die device (600) may include a coating material accumulation section (640) in which the introduced coating material is accumulated. The coating material accumulation section (640) is an area within the interior space of the slot die device (600) where the coating material is temporarily collected, and it serves to ensure uniform distribution and stable supply of the coating material.

[0106] A bar coater-embedded slot die device (600) according to one embodiment of the present disclosure has a bar coater embedded therein so that a coating material can be applied to a film, and the coating material can be uniformly and evenly applied to the aluminum film in both the longitudinal and transverse directions.

[0107] In this case, the coating material may include an adhesive.

[0108] FIGS. 7 to 9 are drawings for explaining a bar coater-embedded slot die coater with a microchannel applied according to one embodiment of the present disclosure.

[0109] According to one embodiment of the present disclosure, a bar coater-embedded slot die coater with a microchannel applied may include a housing (730) having a fluid passage formed inside, an adhesive storage unit (720) in which adhesive introduced from the outside is accumulated, a microchannel unit (740) having a plurality of microchannels to distribute adhesive introduced from the adhesive storage unit and discharge adhesive through a plurality of discharge ports, and a bar (750) for coating an adhesive introduced from the microchannel unit onto a coating target.

[0110] The slot die coater with the microchannels of the present invention is configured with a pumpless structure, enabling the supply and distribution of adhesive without a separate pump.

[0111] The housing (730) is a case structure forming the outer shape of the slot die coater of the present invention, and a fluid passage is formed inside through which adhesive can move. The housing (730) serves to connect and support the adhesive storage section (720) and the microchannel section (740), and maintains the quality of the adhesive by blocking the inflow of contaminants from the outside. An adhesive injection port (710) is formed on the upper part of the housing (730) to allow adhesive to be supplied from an external source.

[0112] The adhesive inlet (710) is located at the top of the housing (730) and is connected to an external adhesive supply system. The adhesive introduced through the adhesive inlet (710) moves along the fluid passage inside the housing (730) to the adhesive storage section (720). The adhesive inlet (710) is configured to have an appropriate size and shape to enable smooth supply of adhesive.

[0113] The adhesive storage section (720) serves as a storage area for temporarily accumulating adhesive introduced through the adhesive injection port (710). The adhesive storage section (720) is formed as a hollow structure in the shape of a rectangular parallelepiped to secure sufficient adhesive storage capacity. Additionally, the adhesive storage section (720) may be implemented in the shape of a curved cylinder, but is not limited thereto. The lower part of the adhesive storage section (720) is connected to the microchannel section (740) and configured so that the stored adhesive can flow into the microchannel section (740).

[0114] The microchannel section (740) performs the function of distributing adhesive introduced from the adhesive storage section (720) through a plurality of microchannels. The microchannel section (740) has a plurality of fine channels formed inside a plate-shaped structure, and these microchannels control the flow of the adhesive to enable uniform distribution.

[0115] The microchannel section (740) includes a main channel (7401) that communicates with the adhesive storage section (720) and a plurality of branch channels (7402) that branch off from the main channel and are connected to respective discharge ports. The main channel is directly connected to the outlet of the adhesive storage section (720) to primarily receive the adhesive, and the plurality of branch channels branch off from the main channel and extend toward the bar (750). The end of each branch channel forms a discharge port, and the plurality of discharge ports are arranged in a line along the width direction of the bar (750) so that the adhesive can be evenly supplied to the entire bar (750).

[0116] The size and shape of the microchannels can be optimized according to process conditions such as adhesive viscosity, coating speed, and coating thickness, and the diameter of each microchannel can be implemented in a range of 500 μm or less.

[0117] The bar (750) is a component in the form of a coating roller that actually applies the adhesive supplied from the microchannel section (740) to the object to be coated. The bar (750) is configured in a cylindrical or columnar shape, and its surface comes into direct contact with the object to be coated to coat the adhesive with a uniform thickness. The surface of the bar (750) may have a specific roughness or pattern to improve coating quality, and the material and surface treatment may be applied differently depending on the characteristics of the object to be coated. The bar (750) is configured to be rotatable so that a continuous coating process is possible.

[0118] The valve (760) is a component that controls the flow of the adhesive and may be located between the adhesive storage section (720) and the microchannel section (740) or inside the microchannel section (740). The valve (760) performs the function of opening, closing, or controlling the flow of the adhesive to start and end the coating process and to control the amount of adhesive supplied.

[0119] The operation process of a bar coater-embedded slot die coater with a microchannel applied according to one embodiment of the present disclosure is as follows:

[0120] Adhesive supply: Adhesive is introduced into the housing (730) through the adhesive inlet (710) from an external supply system. The present invention is a pumpless structure, so that the adhesive is supplied using gravity or a pressure difference without a separate pump.

[0121] Adhesive accumulation: The introduced adhesive travels along the fluid passage inside the housing (730) and accumulates in the adhesive storage section (720).

[0122] Adhesive distribution: The adhesive stored in the adhesive storage unit (720) flows into the microchannel unit (740) under the control of the valve (760) and is evenly distributed through a plurality of microchannels.

[0123] Adhesive discharge: The adhesive that has passed through each microchannel of the microchannel section (740) is supplied to the bar (750) through a plurality of discharge ports.

[0124] Coating execution: The adhesive supplied to the bar (750) is uniformly applied to the surface of the object to be coated by the rotation or movement of the bar (750).

[0125] A slot die coater (700) with a bar coater integrated and a microchannel applied according to one embodiment of the present disclosure improves the stability of coating quality because the pump's pulsation is not transmitted to the bar coater due to the pumpless structure. In conventional coating systems using pumps, periodic pressure changes from the pump are transmitted to the coater, which can cause non-uniformity of coating thickness and surface defects, but the pumpless structure of the present invention can fundamentally solve these problems.

[0126] FIG. 10 is a conceptual diagram illustrating a meniscus shearing solution coater according to one embodiment of the present disclosure.

[0127] Referring to FIG. 3, the blade (1010) of the meniscus shearing solution coater (1000) can be angle-adjusted to apply adhesive to a plastic member and / or a metal member, and the gap between the plastic member and / or a metal member and the blade (1010) can be maintained so that one end of the meniscus shearing solution coater (400) maintains a certain distance from the plastic member and / or a metal member, and the temperature of the substrate (1020) on which the plastic member and / or a metal member are placed and the shearing speed can be adjusted during the shearing process. The direction in which the blade (1010) applies the coating agent and the direction in which it is sheared can proceed in opposite directions.

[0128] The angle adjustment function of the blade (1010) enables optimal coating conditions to be achieved for various shapes of plastic and / or metal members. Adjusting the gap between the blade (1010) and the object to be coated can serve as a key factor in precisely controlling the thickness of the adhesive application.

[0129] The substrate (1020) can stably support plastic and / or metal members while simultaneously providing a temperature control function. The temperature control (Temp.) of the substrate (1020) serves to improve coating quality by optimizing the viscosity characteristics of the adhesive. When the temperature is high, the viscosity of the adhesive decreases, increasing fluidity, and when the temperature is low, the viscosity increases, making it easier to control the coating thickness.

[0130] The shearing direction and the continuous fluid flow direction can be set to opposite directions. This relative orientation setting generates a meniscus effect, enabling the formation of a uniform coating film. Controlling the shearing speed is a process variable directly related to coating quality; a faster speed results in a thinner coating film, while a slower speed results in a relatively thicker coating film.

[0131] During the operation of the above meniscus shearing solution coater (1000), the blade (1010) moves along the surface of the object to be coated while continuously receiving the adhesive solution. At this time, the meniscus formed at the tip of the blade (1010) maintains a stable shape due to surface tension, thereby allowing an adhesive film of uniform thickness to be formed.

[0132] FIGS. 11 to 13 are drawings for illustrating a meniscus shearing solution coater with a microchannel applied according to one embodiment of the present disclosure.

[0133] According to one embodiment of the present disclosure, a meniscus shearing solution coater (1100) with a microchannel applied may include at least one of an adhesive storage portion (1120), a microchannel blade portion (1130), and a substrate (1140).

[0134] The adhesive storage section (1120) serves as a chamber for temporarily storing an adhesive or other solution to be used in a coating process. The adhesive storage section (1120) has an internal space in the shape of a rectangular prism and is configured to be connected to an adhesive injection port (1110) at the top so that adhesive can be supplied from the outside. For convenience of explanation, the adhesive storage section (1120) is disclosed in the shape of a rectangular prism, but according to other embodiments of the present disclosure, the shape of the adhesive storage section (1120) is not limited.

[0135] The lower part of the adhesive storage section (1120) is connected to the microchannel blade section (1130) so that the stored adhesive can be supplied to the microchannel.

[0136] The adhesive injection port (1110) is located at the top of the adhesive storage unit (1120) and is connected to an external adhesive supply system to inject adhesive into the adhesive storage unit (1120). The adhesive injection port (1110) may have a cylindrical or conical structure and may include a valve structure capable of controlling the flow of adhesive.

[0137] The microchannel blade section (1130) is located below the adhesive storage section (1120). The microchannel blade section (1130) consists of a microchannel (1132) and a blade structure containing the same.

[0138] The microchannel (1132) serves to uniformly distribute the adhesive supplied from the adhesive storage unit (1120) onto the surface of the substrate (1140). Multiple microchannels (1132) are arranged in parallel along the width direction of the substrate (1140), and the width and depth of each channel can be optimized according to the coating thickness and the viscosity of the adhesive. Specifically, the diameter of the microchannel (1132) may be 500 micrometers or less.

[0139] The microchannel blade section (1130) may be composed of a main channel (1132A), a branch channel (1132B), and a blade body including these.

[0140] The main channel (1132A) is formed in the central part of the microchannel blade section (1130) and serves to primarily distribute the adhesive supplied from the adhesive storage section (1120).

[0141] The main channel (1132A) may be provided with the same diameter as the branch channel (1132B). Additionally, the main channel (1132A) may be provided with a wider diameter than the branch channel (1132B).

[0142] The branch channels (1132B) branch off from the main channel (1132A) and are arranged in parallel along the width direction of the substrate (1140). As can be seen in the drawing, the branch channels (1132B) are connected to the main channel (1132A) and serve to distribute the adhesive evenly over the entire surface of the substrate (1140).

[0143] The discharge port (1134) is an opening formed at the end of the branch channel (1132B) for discharging adhesive toward the substrate (1140). As can be seen in the drawing, the discharge port (1134) may be positioned on the lower surface of the microchannel blade portion (1130). The discharge port (1134) may be formed in a circular, elliptical, or slit shape, and a plurality of discharge ports (1134) are arranged at regular intervals along the width direction of the support substrate (1140).

[0144] The adhesive supplied through the branch channel (1132B) forms a meniscus in the space between the surface of the object to be coated and the lower part of the microchannel blade (1130). This meniscus is a curved surface formed by the surface tension of the adhesive, and when the object to be coated and / or the microchannel blade (1130) moves at a constant speed, the adhesive is uniformly applied to the object to be coated (the surface of a plastic member and / or a metal member) provided on the support substrate (1140) by the shearing force.

[0145] The object to be coated is a target object to be coated with adhesive and is located below the microchannel blade portion (1130). The object to be coated moves at a constant speed during the coating process, and at this time, the adhesive supplied through the microchannel (1132) is coated onto the object to be coated with a uniform thickness.

[0146] FIG. 14 is a drawing for explaining an apparatus for manufacturing a mobility component with molecular bonding applied using a reverse offset printing coater according to one embodiment of the present disclosure.

[0147] According to one embodiment of the present disclosure, an apparatus for manufacturing a mobility component may include at least one of a first preforming apparatus (1401), a first cleaning apparatus (1411), a first surface modification apparatus (1421), a first adhesive coating apparatus (1431), a second drying apparatus (1442), a second forming apparatus (1402), a second cleaning apparatus (1412), a second surface modification apparatus (1422), a second adhesive coating apparatus (1432), a second drying apparatus (1442), and a laminator (142).

[0148] A preforming device (1401) is positioned upstream of a cleaning device (1411, 1412) to form materials into a predetermined shape. For example, the first preforming device (1401) can form a plastic member into a predetermined shape, and the second preforming device (1402) can form a metal member into a predetermined shape. In this case, the predetermined shape may include, but is not limited to, a panel for a car slide door, a panel for a car trunk, etc.

[0149] The preforming device (1401, 1402) can be implemented in at least one of the following methods: flat plate forming, roll press method, deep drawing method, stretch forming method, hydroforming method, spin forming method, incremental forming method, explosive forming method, electromagnetic forming method, superplastic forming method, hot stamping method, worm forming method, creep forming method, laser assist forming method, and vibration assist forming method.

[0150] The cleaning device (1411, 1412), the first surface modification device (1421), the second surface modification device (1422), and the laminator (145) have the same or similar configuration and function as the cleaning device (1011, 1012), the first surface modification device (1021), the second surface modification device (1022), and the laminator (105) described above with reference to FIGS. 1 to 3, so a detailed description that is redundant is omitted.

[0151] According to one embodiment of the present disclosure, an apparatus (1400) for manufacturing a mobility part using a reverse offset printing coater may optionally include a first adhesive coating device (1431), a first drying device (1441), a second adhesive coating device (1432), and a second drying device (1442). For example, according to one embodiment, an apparatus (1400) for manufacturing a mobility part using a reverse offset printing coater may include a first adhesive coating device (1431) and a first drying device (1441). According to another embodiment, an apparatus (1400) for manufacturing a mobility part using a reverse offset printing coater may include a second adhesive coating device (1432) and a second drying device (1442). According to another embodiment, the apparatus (1400) for manufacturing mobility parts using a reverse offset printing coater may include a first adhesive coating apparatus (1431), a first drying apparatus (1441), a second adhesive coating apparatus (1432), and a second drying apparatus (1442).

[0152] In this case, the first adhesive coating device (1431) and the second adhesive coating device (1432) may be implemented as a reverse offset printing coater, which will be explained in detail below.

[0153] The first drying device (1441) and the second drying device (1442) have the same or similar configuration and function as the first drying device (1041) and the second drying device (1042) described above with reference to FIGS. 1 to 3, so a detailed description that is redundant is omitted.

[0154] FIG. 15 is a drawing for illustrating a reverse offset printing coater according to one embodiment of the present disclosure.

[0155] According to one embodiment of the present disclosure, a reverse offset printing coater (1500) may include a blanket roller (1510) that applies adhesive to its surface and transfers the applied adhesive to one side of a coating target by rotating in one direction while in contact with the surface of the coating target, and a reverse offset roller (1520) that removes the adhesive from the surface of the blanket roller, excluding the portion of the adhesive applied to the blanket roller that is not a pre-formed pattern.

[0156] The reverse offset roller (1520) is located on the other side of the blanket roller (110) and rotates in the opposite direction to the rotation direction of the blanket roller (1510), and can remove the printing material already applied to the blanket roller (110) from the surface of the blanket roller (110) at the surface in contact with the blanket roller (110). Accordingly, a printing pattern is formed in intaglio on the surface of the reverse offset roller (1520), and by the reverse offset roller (1520) contacting the surface of the blanket roller (1510), the adhesive in the portion of the printing material applied to the blanket roller (1510) excluding the printing pattern is removed from the surface of the blanket roller (1510), thereby allowing a specific printing pattern to be formed on the surface of the blanket roller (1510).

[0157] Additionally, the reverse offset printing coater (1500) may include a slot die (1530) that applies adhesive to the entire surface of the blanket roller (1510). The slot die (1530) can apply adhesive to the entire surface of the blanket roller (1510).

[0158] The surface of the reverse offset roller (1520) may be provided with an adhesive and an adhesive-inducing material having a predetermined adhesive strength. More specifically, the adhesive-inducing material may be provided on the outermost surface of the reverse offset roller (1520), that is, on the surface where the blanket roller (1510) and the reverse offset roller (1520) come into contact. Accordingly, the reverse offset roller (1520) may be able to remove the adhesive from the surface of the blanket roller (1510) with greater accuracy.

[0159] Additionally, the reverse offset printing coater (1500) may further include a cleaning roller (1540) that contacts the other side of the reverse offset roller (1520) and rotates in one direction opposite to the rotation direction of the reverse offset roller (1520) to remove printing material present on the surface of the reverse offset roller (1520). The cleaning roller (1540) may perform the function of separating the adhesive separated by the reverse offset roller (1520) from the surface of the blanket roller (1510) from the surface of the reverse offset roller (1520).

[0160] The surface of the washing roller is also provided with the aforementioned adhesive-inducing material so that the printing material transferred to the surface of the reverse offset roller (1520) can be easily transferred to the washing roller (1540).

[0161] Additionally, according to another embodiment of the present disclosure, the reverse offset printing coater (1500) may further include a cleaning nozzle (not shown) that sprays a cleaning substance capable of dissolving adhesive onto the surface of the reverse offset roller (1520) in addition to the cleaning roller (1540).

[0162] Accordingly, the adhesive transferred to the surface of the reverse offset roller (1520) can be removed more completely.

[0163] FIG. 16 is a drawing for explaining a blanket roller according to one embodiment of the present disclosure.

[0164] According to one embodiment of the present disclosure, the blanket roller (1510) may be composed of a double layer. For example, the blanket roller (1510) may include a cylindrical space inside and may include an outer skin (1512) made of a material of a predetermined hardness. The outer skin (1512) may be composed of PDMS (Polydimethylsiloxane), and the hardness may be PDMS 60 to 70 (Shore A).

[0165] Additionally, according to one embodiment of the present invention, the blanket roller (1510) may include an inner skin (1514) that is filled in the inner space of the outer skin (1512) and is made of a material with a lower hardness than the outer skin (15120). The inner skin (1514) may also be made of PDMS, and the hardness may be PDMS 10 to 20 (Shore A).

[0166] In this case, the inner skin (1514) may be composed of a sponge. The sponge has a porous structure and can provide elastic recovery force when compressed.

[0167] Additionally, a blanket roller (100) according to one embodiment of the present invention may include a core portion (1516) located at the center of an inner skin portion (1514). A rotation axis may be formed through the center of the core portion (1516) and may rotate in the same phase as the rotation axis.

[0168] The core portion (1516) is a cylindrical rod made of metal, and the hardness of the core portion (1516) may be higher than that of the outer skin portion (1512) and the inner skin portion (1514).

[0169] By including a core portion (1516), the position and shape of the outer skin portion (1512) and the inner skin portion (1514) can be fixed. The core portion (1516) may be bonded to the inner skin portion (1514) by applying an adhesive or the like to its surface. Alternatively, irregularities may be uniformly formed at predetermined intervals on the surface of the core portion (1516), and the bonding strength between the inner skin portion (1514) and the core portion (1512) may be increased by laminating the inner skin portion (1514) onto the surface of the core portion (1516).

[0170] At this time, the thickness t1 of the outer skin (1512) may be thinner than the thickness t2 of the inner skin (1514). More specifically, the inner skin (1514) may form the volume of the blanket roller (1510) like the core part (1516), and the outer skin (1512) may be a thin sheet (0.5 mm or less) attached to the surface of the inner skin (1514). More specifically, the thickness of the inner skin (1514) and the radius of the core part (1516) may be nearly the same, and the thickness of the inner skin (1514) and the thickness of the outer skin (1512) may differ by more than 40 times.

[0171] By adopting such a structure, the blanket roller (100) of the present invention can uniformly apply adhesive to pre-formed plastic and / or metal members.

[0172] FIG. 17 is a drawing for explaining a method of manufacturing a mobility part with molecular bonding applied using a reverse offset printing coater according to one embodiment of the present disclosure.

[0173] A method for manufacturing a mobility component according to one embodiment of the present disclosure may include at least one of a preforming step (S1701, S1702), a cleaning step (S1711, S1712), a surface modification step (S1721, S1722), an adhesive coating step (S1731, S1732), a drying step (S1741, S1742), and a lamination step (S175).

[0174] According to one embodiment of the present disclosure, in the first pre-forming step (S1701), a plastic member may be formed into a predetermined shape. Additionally, in the second pre-forming step (S1702), a metal member may be formed into a predetermined shape. A detailed description thereof has been provided above in FIGS. 14 to 16.

[0175] According to one embodiment of the present disclosure, a plastic member may be cleaned in the first cleaning step (S1711). Additionally, a metal member may be cleaned in the second cleaning step (S1712). A detailed description thereof has been provided above in FIGS. 14 to 16.

[0176] According to one embodiment of the present disclosure, in the first surface modification step (S1721), the surface of a plastic member may be modified by a first surface modification device (1421) to form functional groups. Additionally, in the second surface modification step (S1722), the surface of a metal member may be modified by a second surface modification device (1422) to form functional groups. A detailed explanation thereof has been provided above in FIGS. 14 to 16.

[0177] According to one embodiment of the present disclosure, in the first adhesive coating step (S1731), one surface modified of a plastic member may be coated by the first coating device (1431). Additionally, in the second adhesive coating step (S1732), one surface modified of a metal member may be coated by the second coating device (1432).

[0178] In FIG. 17, it is depicted that both the surface of the plastic member and the surface of the metal member are coated according to one embodiment, but according to embodiments of the present invention, at least one of the surface of the plastic member and the surface of the metal member may be coated.

[0179] This has been described in detail in FIGS. 14 to 16.

[0180] According to one embodiment of the present disclosure, in the drying step (S1741, S1742), one surface of a plastic member and / or a metal member to which an adhesive has been applied may be dried. For example, a first drying device (1441) may dry the adhesive applied to a plastic member, and a second drying device (1442) may dry the adhesive applied to a metal member.

[0181] In this case, the method for manufacturing the mobility part may optionally include a first drying step (S5041) and a second drying step (S5042) depending on the adhesive application method. For example, the method for manufacturing the mobility part may include a first drying step (S1741) when a plastic member is coated, a second drying step (S1742) when a metal member is coated, and both the first drying step (S1741) and the second drying step (S1742) when both a plastic member and a metal member are coated. This has been described in detail in FIGS. 14 to 16.

[0182] In the lamination step (S175), the rapid member and the plastic member can be laminated. This has also been described in detail in FIGS. 14 to 16.

[0183] Although the above-described embodiments specifically explain a method for manufacturing mobility components, the present invention is not limited thereto. The technical concept of the present invention can be applied not only to the method for manufacturing mobility components but also to the manufacturing process, the manufacturing system, and the entire component processing process using the same.

[0184] Furthermore, the present invention may also be implemented as a process consisting of individual manufacturing steps, and each process step may be carried out independently or in combination. Those skilled in the art will understand that various modifications and changes to the manufacturing method, manufacturing process, process conditions, process sequence, etc., are possible without departing from the essential characteristics of the present invention.

[0185] FIG. 18 is a drawing for explaining a method of manufacturing a panel for an automobile side door according to one embodiment of the present disclosure.

[0186] The vehicle side door (1800) may include an inner panel (1804), an outer panel (1802), and a door impact beam (1806). To reduce the weight of the vehicle, the inner panel (1804) and / or the outer panel (1802) may be provided as a combined panel of a plastic member and a metal member. In this case, a carbon fiber reinforced plastic member may be used as the plastic member, and a high-strength steel member may be used as the metal member.

[0187] The inner panel (1804) is a panel located on the interior side of the side door (1800) and serves as a structure on which various components such as a window regulator, door handle, and speaker are mounted. To reduce weight, the inner panel (1804) may be composed of a carbon fiber reinforced plastic member and a high-strength steel member combined by molecular bonding.

[0188] The outer panel (1802) is a panel that forms the outer surface of the side door (1800) and functions to protect the internal structure of the door from external impact while simultaneously realizing the exterior design of the vehicle. The outer panel (1802) may also be composed of a carbon fiber reinforced plastic member and a high-strength steel member combined by molecular bonding for weight reduction.

[0189] According to one embodiment of the present disclosure, a panel for an automobile side door can be manufactured by the apparatus, method, and process described in FIGS. 1 to 5 and FIGS. 14 to 17.

[0190] Specifically, a panel for an automobile side door according to one embodiment of the present disclosure can be manufactured by a five-step process of cleaning, surface modification, coating, drying, lamination, and forming.

[0191] First, in the cleaning process, pretreatment of carbon fiber reinforced plastics and high-strength steel is performed. Specifically, ultrasonic cleaning using an ethanol solvent is performed for 3 to 5 minutes to remove oil and contaminants from the surface.

[0192] In the surface modification process, adhesion is improved through surface activation of the cleaned carbon fiber reinforced plastic and high-strength steel. Specifically, functional groups may be formed. In this process, at least one of oxygen plasma treatment, UV treatment, and corona treatment may be optionally applied.

[0193] In the case of oxygen plasma treatment, the process is performed for 30 to 120 seconds with a power of 100W, and functional groups can be formed.

[0194] UV treatment can be performed for 10 to 30 minutes, and corona treatment can be performed for 60 to 120 seconds to form functional groups.

[0195] In the coating process, an adhesive may be applied to at least one of the surface-modified materials. In this case, the adhesive may be applied to carbon fiber reinforced plastic, the adhesive may be applied to high-strength steel, or the adhesive may be applied to both carbon fiber reinforced plastic and high-strength steel.

[0196] In this case, it may be coated with one of a bar coater-embedded slot die device, a reverse offset printing coater, a meniscus shearing solution coater, a bar coater-embedded slot die coater with a microfluidic channel, or a meniscus shearing solution coater with a microfluidic channel, but is not limited thereto.

[0197] Some of the devices used in the coating process have been described in detail in FIGS. 6 to 13.

[0198] In addition, the coated member can be dried in a drying process. For example, if carbon fiber reinforced plastic is coated, the carbon fiber reinforced plastic can be dried; if high-strength steel is coated, the high-strength steel can be dried; and if both carbon fiber reinforced plastic and high-strength steel are coated, the carbon fiber reinforced plastic and high-strength steel can each be dried.

[0199] Specifically, the drying temperature can be set in the range of 100°C to 150°C, and more specifically, can be performed at 120°C. The drying time can be adjusted according to the thickness of the coating layer and the type of material, and can be set in the range of 5 minutes to 20 minutes, and specifically, can be set to 10 minutes. The drying process can be performed using any one of a hot air circulating dryer, an infrared dryer, an ultraviolet dryer, or a vacuum dryer, but is not limited thereto.

[0200] A roll laminator may be used in the lamination process. For example, carbon fiber reinforced plastic and high-strength steel may be laminated at a temperature of 80°C to 150°C, a pressure of 1 MPa to 5 MPa, and a processing time of 30 minutes to 60 minutes. As a result, the carbon fiber reinforced plastic and high-strength steel can form a strong molecular bond at the interface.

[0201] In the lamination process, molecular bonding can be formed through surface-modified functional groups. Functional groups such as hydroxyl groups (-OH), carboxyl groups (-COOH), and / or amino groups (-NH2) are introduced to the surface of high-strength steel through a surface modification process. Additionally, functional groups such as hydroxyl groups (-OH), carboxyl groups (-COOH), and / or amino groups (-NH2) are introduced to the surface of carbon fiber reinforced plastic through a surface modification process.

[0202] Under lamination conditions, surface functional groups of carbon fiber reinforced plastic, surface functional groups of high-strength steel, and the adhesive interact to form nanoscale molecular linkers. These nanolinkers generate chemical crosslinks between the two materials through covalent bonds, coordinate bonds, or strong intermolecular forces, resulting in the formation of an integrated joint at the molecular level. This nanolinker structure significantly enhances the strength and durability of the joint.

[0203] In the forming process, the laminated hybrid material can be formed into a side door panel. For example, in the forming process, press forming can be performed for 30 minutes by applying a pressure of 60 MPa.

[0204] As another example, in a forming process, the forming device can perform a forming process by pressing at a temperature of 120 to 200 degrees at a pressure of 40 MPa to 60 MPa for 30 minutes, and then cooling to 35 degrees or lower using water.

[0205] An automobile side door composed of a hybrid panel produced through the manufacturing device, method, and / or process according to the present invention can simultaneously possess excellent rigidity and lightness.

[0206] FIG. 19 is a drawing for explaining a method, apparatus, and process for manufacturing a panel for an automobile trunk according to one embodiment of the present disclosure.

[0207] The panel for the car trunk may include an inner panel (1902) and an outer panel (1904).

[0208] The inner panel (1902) forms the inner surface of the trunk lid. The inner panel (1902) can be formed from a hybrid material (a composite member of a polypropylene member and an aluminum member) to be lightweight.

[0209] The outer panel (1904) forms the outer surface of the trunk and implements the exterior design of the vehicle body while protecting the interior of the trunk from external impacts. The outer panel (1904) can be made of a hybrid material (a composite member of a polypropylene member and an aluminum member) to achieve weight reduction compared to conventional steel panels while satisfying reliability requirements.

[0210] According to one embodiment of the present disclosure, a panel for an automobile trunk can be manufactured by the apparatus, method, and process described in FIGS. 1 to 5 and FIGS. 14 to 17.

[0211] Specifically, a panel for an automobile trunk according to one embodiment of the present disclosure can be manufactured by a five-step process of cleaning, surface modification, coating, drying, lamination, and forming.

[0212] First, in the cleaning process, pretreatment of the polypropylene and aluminum components is performed. Specifically, ultrasonic cleaning using an ethanol solvent is performed for 3 to 5 minutes to remove oil and contaminants from the surface.

[0213] In the surface modification process, adhesion is improved through surface activation of the cleaned polypropylene and aluminum members. Specifically, functional groups may be formed. In this process, at least one of oxygen plasma treatment, UV treatment, and corona treatment may be optionally applied.

[0214] In the case of oxygen plasma treatment, the process is performed for 30 to 120 seconds with a power of 100W, and functional groups can be formed.

[0215] UV treatment can be performed for 10 to 30 minutes, and corona treatment can be performed for 60 to 120 seconds to form functional groups.

[0216] In the coating process, an adhesive may be applied to at least one of the surface-modified materials. In this case, the adhesive may be applied to polypropylene, may be applied to an aluminum member, or may be applied to both the polypropylene and the aluminum member.

[0217] In this case, it may be coated with one of a bar coater-embedded slot die device, a reverse offset printing coater, a meniscus shearing solution coater, a bar coater-embedded slot die coater with a microfluidic channel, or a meniscus shearing solution coater with a microfluidic channel, but is not limited thereto.

[0218] Some of the devices used in the coating process have been described in detail in FIGS. 6 to 13.

[0219] Additionally, the coated member can be dried in a drying process. For example, if polypropylene is coated, the polypropylene can be dried; if an aluminum member is coated, the aluminum member can be dried; and if both polypropylene and aluminum members are coated, the polypropylene and aluminum members can be dried respectively.

[0220] Specifically, the drying temperature can be set in the range of 100°C to 150°C, and more specifically, can be performed at 120°C. The drying time can be adjusted according to the thickness of the coating layer and the type of material, and can be set in the range of 5 minutes to 20 minutes, and specifically, can be set to 10 minutes. The drying process can be performed using any one of a hot air circulating dryer, an infrared dryer, an ultraviolet dryer, or a vacuum dryer, but is not limited thereto.

[0221] A roll laminator may be used in the lamination process. For example, polypropylene and aluminum members may be laminated at a temperature of 80°C to 150°C, a pressure of 1 MPa to 5 MPa, and a processing time of 30 minutes to 60 minutes. As a result, the polypropylene and aluminum members can form a strong molecular bond at the interface.

[0222] In the lamination process, molecular bonding can be formed through surface-modified functional groups. Functional groups such as hydroxyl groups (-OH), carboxyl groups (-COOH), and / or amine groups (-NH2) are introduced to the surface of the aluminum member through a surface modification process. Additionally, functional groups such as hydroxyl groups (-OH), carboxyl groups (-COOH), and / or amine groups (-NH2) are also introduced to the surface of the polypropylene through a surface modification process.

[0223] Under lamination conditions, the surface functional groups of polypropylene, the surface functional groups of the aluminum component, and the adhesive interact to form nanoscale molecular linkers. These nanolinkers generate chemical crosslinks between the two materials through covalent bonds, coordinate bonds, or strong intermolecular forces, resulting in the formation of an integrated joint at the molecular level. The nanolinker structure significantly enhances the strength and durability of the joint.

[0224] In the forming process, the laminated hybrid material can be formed into a trunk panel. For example, in the forming process, press forming can be performed for 30 minutes by applying a pressure of 60 MPa.

[0225] As another example, in a forming process, the forming device can perform a forming process by pressing at a temperature of 120 to 200 degrees at a pressure of 40 MPa to 60 MPa for 30 minutes, and then cooling to 35 degrees or lower using water.

[0226] An automobile side door composed of a hybrid panel produced through the manufacturing device, method, and / or process according to the present invention can simultaneously possess excellent rigidity and lightness.

[0227] FIG. 20 is a drawing for explaining a method, apparatus, and process for manufacturing a mobility part to which molecular bonding is applied using a bar coater-embedded slot die coater equipped with a wire bar according to one embodiment of the present disclosure. Also, FIG. 21 is a cross-section of a wire bar for explaining another wire bar according to one embodiment of the present disclosure.

[0228] According to one embodiment of the present disclosure, a bar coater-embedded slot die coater equipped with a wire bar may be used as an adhesive coating device in a method, apparatus, and process for manufacturing mobility parts.

[0229] For example, in the bar coater-embedded slot die (600) described above in FIG. 6, the bar coater (610) can be replaced with a wire bar (2000).

[0230] In addition, as another example, in the bar coater-embedded slot die coater (700) with the microchannel described above in FIG. 7, the bar (750) can be replaced with a wire bar (2000).

[0231] The wire bar (2000) has a circular cross-section and includes a core portion (2110) formed in the center and a wire portion (2120) in which a plurality of wires are wound spirally at regular intervals along the outer surface of the core portion (2110).

[0232] The spacing between the wires can be precisely adjusted according to the desired coating thickness, and the spirally wound wires contact the substrate to uniformly control the thickness of the coating material. The wires are continuously wound along the entire length of the core and are firmly secured at both ends to prevent detachment during the coating process.

[0233] The core portion may be manufactured from stainless steel, aluminum alloy, or other metal materials with excellent corrosion resistance, and the wire may also be selected from a material with excellent chemical resistance and wear resistance. The diameter of the core portion and the diameter of the wire may be selected by considering the viscosity of the material to be coated, the target coating thickness, the type of substrate, etc.

[0234] FIG. 22 is a drawing for explaining a computing module according to one embodiment of the present disclosure.

[0235] According to one embodiment of the present disclosure, the devices described herein may each include a computing module (2200). For example, a cleaning device (1011, 1012), a surface modification device (1021, 1022), an adhesive coating device (1031, 1032), a drying device (1041, 1042), a laminator (105), a forming device (106), etc. may include a computing module (2200), and a mobility part manufacturing device (100) may also include a computing module (2200). The computing module (2200) can control each of the devices.

[0236] A computing module (2200) according to one embodiment of the present invention may include one or more processors (2210), a memory (2220) for loading a computer program (2222) executed by the processor (2210), a bus (2260), a communication interface (2230), and a storage (2240) for storing the computer program (2222).

[0237] Here, only exemplary components of the computing module (2200) of the present invention are illustrated in FIG. 22. Therefore, a person skilled in the art to which the present invention pertains will understand that other general-purpose components may be included in addition to the components illustrated in FIG. 22.

[0238] The processor (2210) controls the overall operation of the computing module (2200) and each configuration of the devices described in the present invention. The processor (2210) may be composed of one or more cores and may include at least one of a central processing unit (CPU), a general purpose graphics processing unit (GPGPU), a tensor processing unit (TPU), a digital signal processor (DSP), a microcontroller unit (MCU), or a combination thereof. Additionally, the processor (2210) may include hardware accelerators such as application-specific integrated circuits (ASICs) or field programmable gate arrays (FPGAs). Alternatively, it may be configured to include any type of processor well known in the art of the present invention.

[0239] Additionally, the processor (2210) may perform operations for at least one application or program for executing the method according to embodiments of the present invention, and the computing module (100) may have one or more processors.

[0240] In various embodiments, the processor (2210) may further include RAM (Random Access Memory, not shown) and ROM (Read-Only Memory, not shown) for temporarily and / or permanently storing signals (or data) processed within the processor (2210). Additionally, the processor (2210) may be implemented in the form of a system-on-chip (SoC) comprising at least one of a graphics processing unit, RAM, and ROM.

[0241] The memory (2220) stores various data, instructions, and / or information. The memory (2220) may load a computer program (2222) from storage (2240) to execute a method / operation according to various embodiments of the present invention. When the computer program (2222) is loaded into the memory (22220), the processor (2210) may perform the method / operation by executing one or more instructions constituting the computer program (2222). The memory (2220) may be implemented as a volatile memory such as RAM, but the technical scope of the present invention is not limited thereto.

[0242] The bus (2260) provides communication functions between components of the computing module (2200). The bus (2260) can be implemented as various types of buses, such as an address bus, a data bus, and a control bus.

[0243] The communication interface (2230) supports wired and wireless internet communication of the computing module (2200). Additionally, the communication interface (2230) may support various communication methods other than internet communication. To this end, the communication interface (2230) may be configured to include a communication module well known in the art of the present invention. In some embodiments, the communication interface (2230) may be omitted.

[0244] Storage (2240) can store a computer program (222) non-temporarily. When performing a process according to an embodiment of the present invention through a computing module (2200), storage (2240) can store various information necessary to perform a method according to the disclosed embodiment or to provide a process.

[0245] The storage (2240) may be configured to include non-volatile memory such as ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), flash memory, a hard disk, a removable disk, or any form of computer-readable recording medium well known in the art to which the present invention belongs.

[0246] A computer program (2222) may include one or more instructions that cause a processor (2210) to perform a method / process according to various embodiments of the present invention when loaded into memory (2220). That is, the processor (2210) may perform the method / operation according to various embodiments of the present invention by executing the one or more instructions.

[0247] FIG. 23 is a drawing for explaining surface modification according to another embodiment of the present disclosure.

[0248] According to one embodiment of the present disclosure, a mobility component manufacturing device (100) can form functional groups on the surface of a plastic member or a metal member using at least one of an oxygen plasma device, a UV generator, and a corona generator. For example, the mobility component manufacturing device (100) can form hydroxy (OH) groups on the surface of a plastic member or a metal member.

[0249] Additionally, the mobility component manufacturing device (100) can form a functional group by reacting a hydroxyl group (OH) formed on the surface of a plastic or metal member with a surface modification compound. In this case, the functional group may include an amino group (NH2).

[0250] The compounds disclosed in FIG. 23 disclose examples of surface modification compounds.

[0251] For example, the surface modification compound may include at least one of (3-isocyanatopropyl)trimethoxysilane, 3-(trimethoxysilyl)propyl acrylate, (3-glycidyloxypropyl)trimethoxysilane, 4-(2-aminoethyl)benzene-1,2-diol, and (3-mercaptopropyl)trimethoxysilane.

[0252] When surface modification is performed by a chemical reaction, at least some of the surfaces of the plastic member and / or metal member may have amino groups (NH2) formed as functional groups.

[0253] FIG. 24 is a drawing for explaining the components of an adhesive according to another embodiment of the present disclosure.

[0254] According to one embodiment of the present disclosure, an adhesive coated on a surface-modified plastic member and / or metal member may comprise various compounds. FIG. 24 discloses an example of various compounds.

[0255] For example, the adhesive may comprise at least one of bis(3-aminophenyl) sulfone, hexamethylene diisocyanate, methylene diphenyl 4,4'-diisocyanate, 1,6-diaminohexane, 1,7-octadiene diepoxide, triethylenetetramine, 1,4-butanediol diglycidyl ether, bis[4(glycidyloxy)phenyl] ethane, and tetraglycidyl-4,4'-diaminodiphenylmethane.

[0256] FIG. 25 is a drawing for explaining that a plastic member and a metal member are bonded by forming a molecular bond according to one embodiment of the present disclosure.

[0257] According to one embodiment of the present disclosure, a hydroxyl group (-OH) as a functional group may be formed on at least a portion of the surface-modified surface of a plastic member (PP or CFRP). Additionally, a silane compound may be formed by reacting 3-aminopropyltetraethoxysilane (APTES) with the hydroxyl group to enhance reactivity with an adhesive. In this case, the silane compound may include an aminopropyl group (a propylamine chain connected to a -Si-O-Si- structure).

[0258] In addition, hydroxyl groups (-OH) may be formed as functional groups on at least a portion of the surface-modified surface of a metal member (Al or Fe). Additionally, a silane compound formed by reaction with the hydroxyl groups may be formed. In this case, the silane compound may include an aminopropyl group (a propylamine chain connected to a -Si-O-Si- structure).

[0259] According to one embodiment of the present disclosure, the adhesive may comprise a diisocyanate compound. For example, the adhesive may comprise hexamethylene diisocyanate (HDI). Hexamethylene diisocyanate may be incorporated into the adhesive and coated onto a plastic member and / or a metal member.

[0260] According to one embodiment of the present disclosure, when laminated, the isocyanate group of the HDI can react with the amino group on the plastic surface and the amino group on the metal surface, respectively, to form a urea bond (-NH-CO-NH-). In this case, the HDI molecule acts as a crosslinker to chemically connect the silane coupling agent of the plastic member and the silane coupling agent of the metal member.

[0261] FIG. 26 is a drawing illustrating that a plastic member and a metal member are bonded by forming a molecular bond according to another embodiment of the present disclosure.

[0262] According to one embodiment of the present disclosure, a hydroxyl group (-OH) may be formed as a functional group on at least a portion of the surface-modified surface of a plastic member (PP or CFRP). Additionally, a silane compound formed by reacting with the hydroxyl group may be formed. In this case, the silane compound may include an aminopropyl group (a propylamine chain connected to a -Si-O-Si- structure).

[0263] In addition, hydroxyl groups (-OH) may be formed as functional groups on at least a portion of the surface-modified surface of a metal member (Al or Fe). Additionally, a silane compound formed by reaction with the hydroxyl groups may be formed. In this case, the silane compound may include an aminopropyl group (a propylamine chain connected to a -Si-O-Si- structure).

[0264] The adhesive may contain two compounds. For example, the adhesive may contain a diglycidyl ether compound and a diamine compound. As a specific example, the adhesive may contain bisphenol A diglycidyl ether and 4,4'-diaminodiphenylsulfone.

[0265] According to one embodiment of the present disclosure, a mobility component manufacturing device (100) can generate a multi-stage epoxy-amine reaction by gradually increasing the temperature starting from room temperature, through 80°C, to 160°C.

[0266] A diglycidyl ether compound and a diamine compound react to form a cross-linked structure, and the formed cross-linked structure can bond with amino groups formed on the surface of a plastic member and amino groups formed on the surface of a metal member. As a result, the surface of the metal member and the surface of the plastic member can be chemically bonded.

[0267] FIG. 27 is a drawing illustrating that a plastic member and a metal member are bonded by forming a molecular bond according to another embodiment of the present disclosure.

[0268] According to one embodiment of the present disclosure, a hydroxyl group (-OH) may be formed as a functional group on at least a portion of the surface-modified surface of a plastic member (PP or CFRP). Additionally, a silane compound may be formed by reacting with the hydroxyl group. In this case, the silane compound may include an aminopropyl group (a propylamine chain connected to a -Si-O-Si- structure).

[0269] In addition, hydroxyl groups (-OH) may be formed as functional groups on at least a portion of the surface-modified surface of a metal member (Al or Fe). Additionally, a silane compound may be formed by reacting with the hydroxyl groups. In this case, the silane compound may include an aminopropyl group (a propylamine chain connected to a -Si-O-Si- structure).

[0270] According to one embodiment of the present disclosure, the adhesive may comprise a polymer in which monomers, namely glycidyl acrylate and butyl acrylate, are randomly arranged. In this case, the polymer of glycidyl acrylate and butyl acrylate may be formed by a radical polymerization reaction. Through a chain reaction initiated by a radical initiator, the double bonds of each monomer are opened and converted into single bonds, and as radicals are transmitted in a chain, the monomers are continuously bonded to form a polymer. Here, the degrees of polymerization of the polymer, n and m, may be repeating units of 2 to 10.

[0271] In addition, the adhesive may contain a diamine compound. As a specific example, the adhesive may contain 4,4'-diaminodiphenylsulfone.

[0272] According to one embodiment of the present disclosure, an epoxide of a polymer in which glycidyl acrylate and butyl acrylate are randomly arranged reacts with a diamine compound to form a cross-linked structure, and the formed cross-linked structure can be bonded to an amino group formed on the surface of a plastic member and an amino group formed on the surface of a metal member. As a result, the surface of the metal member and the surface of the plastic member can be chemically bonded.

[0273] FIG. 28 is a drawing illustrating that a plastic member and a metal member are bonded by forming a molecular bond according to another embodiment of the present disclosure.

[0274] According to one embodiment of the present disclosure, at least a portion of the surface-modified surface of a plastic member (PP or CFRP) may have an amine group (NH2) formed as a functional group. Additionally, at least a portion of the surface-modified surface may include an isocyanate (NCO) group as a functional group.

[0275] In addition, amine groups (NH2) may be formed as functional groups on at least a portion of the surface-modified surface of the metal member (Al or Fe). In addition, isocyanate (NCO) groups may be included as functional groups on at least a portion of the surface-modified surface.

[0276] According to one embodiment of the present disclosure, by applying heat and pressure to a surface-modified plastic member and a metal member, an isocyanate (NCO) group and an amine can react to form a urea bond.

[0277] Urea bonds can directly connect plastic and metal components at the molecular level through strong covalent bonds. This chemical bonding can provide significantly improved bonding strength compared to conventional physical bonding methods.

[0279] It should be understood that the specific order or hierarchy of steps in the presented processes is merely an example of exemplary approaches. It should be understood that, based on design priorities, the specific order or hierarchy of steps in the processes may be rearranged within the scope of the invention. The appended method claims provide various step elements in a sample order, but do not imply limitation to the specific order or hierarchy presented.

[0280] The method according to the present invention described above can be produced as a program to be executed on a computer and stored on a computer-readable recording medium, and examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

[0281] Computer-readable recording media are distributed across networked computer systems, allowing computer-readable code to be stored and executed in a distributed manner. Furthermore, functional programs, codes, and code segments for implementing the above method can be easily inferred by programmers skilled in the art to which the present invention pertains.

[0282] Furthermore, although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above. It is understood that various modifications can be made by those skilled in the art without departing from the essence of the invention as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present invention.

[0283] Furthermore, although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above. It is understood that various modifications can be made by those skilled in the art without departing from the essence of the invention as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present invention.

[0284] The scope of the present invention is defined by the claims set forth below, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts thereof should be interpreted as being included within the scope of the present invention.

[0285] delete Explanation of the symbols delete

Claims

Claim 1 An apparatus for manufacturing a mobility component to which molecular bonding is applied, comprising: a first surface modification device for modifying the surface of a plastic member to form functional groups; a second surface modification device for modifying the surface of a metal member to form functional groups; a bar coater-embedded slot die coater with microchannels for coating an adhesive onto the surface-modified plastic member; a bar coater-embedded slot die coater equipped with a wire bar for coating an adhesive onto the surface-modified metal member; and a drying device for drying the member to which the adhesive is applied. A device for manufacturing a mobility component with molecular bonding applied, comprising: a laminator for laminating the metal member and the plastic member; wherein the bar coater-embedded slot die coater with the microchannel applied comprises: a housing having a fluid passage formed inside; an adhesive storage unit in which adhesive introduced from the outside is accumulated; a microchannel unit having a plurality of microchannels to distribute adhesive introduced from the adhesive storage unit and discharge adhesive through a plurality of discharge ports; and a bar for coating the adhesive introduced from the microchannel unit onto a coating target; wherein the bar coater-embedded slot die coater with the wire bar provided comprises: a housing having a fluid passage formed inside; an adhesive storage unit in which adhesive introduced from the outside is accumulated; a microchannel unit having a plurality of microchannels to distribute adhesive introduced from the adhesive storage unit and discharge adhesive through a plurality of discharge ports; and a wire bar for coating the adhesive introduced from the microchannel unit onto a coating target. Claim 2 An apparatus for manufacturing a mobility part with molecular bonding applied, wherein the laminator is a roll laminator and a plastic member and a metal member are laminated at a temperature of 80°C to 150°C and a pressure of 1 MPa to 5 MPa for a processing time of 30 minutes to 60 minutes. Claim 3 An apparatus for manufacturing a mobility component to which molecular bonding is applied, wherein each of the plurality of microchannels has a diameter of 500 micrometers or less. Claim 4 An apparatus for manufacturing a mobility component with molecular bonding applied, wherein the microchannel section comprises: a main channel communicating with the adhesive storage section; and a plurality of branch channels branching from the main channel and connected to respective discharge ports. Claim 5 An apparatus for manufacturing a mobility component to which molecular bonding is applied, wherein, in claim 1, the functional group is at least one of a hydroxyl group, a silanol group, a carboxyl group, and an amino group. Claim 6 An apparatus for manufacturing a mobility component with applied molecular bonding, wherein the first surface modification device and the second surface modification device comprise at least one of an oxygen plasma device, a UV generator, and a corona generator, and the functional group comprises at least one of a hydroxyl group and an amino group. Claim 7 In claim 6, the apparatus for manufacturing a mobility component with applied molecular bonding, wherein the adhesive comprises a diglidyl ether compound and a diamine compound. Claim 8 In claim 6, the device for manufacturing a mobility part with applied molecular bonding, wherein the adhesive comprises a diisocyanate compound. Claim 9 In claim 6, the drying device is a device for manufacturing a mobility part with molecular bonding applied, which dries the applied adhesive until it reaches a thickness of 10 nm or less. Claim 10 In claim 9, the device for manufacturing a mobility part to which the molecular bonding is applied further comprises a cleaning device for cleaning the plastic member and the metal member prior to surface modification. Claim 11 An apparatus for manufacturing a mobility component with applied molecular bonding, wherein at least one of the first surface modification device and the second surface modification device applies oxygen plasma for 30 seconds to 120 seconds at an output of 50-200W at an RF frequency of 13.56MHz. Claim 12 An apparatus for manufacturing a mobility component with applied molecular bonding, wherein at least one of the first surface modification device and the second surface modification device irradiates UV light of wavelengths of 185 nm and 254 nm at an intensity of 10-50 mW / cm² for 10 to 30 minutes. Claim 13 In claim 9, an apparatus for manufacturing a mobility component with applied molecular bonding, wherein at least one of the first surface modification device and the second surface modification device applies a high voltage of 10-30kV to an electrode to generate a corona discharge for 60 to 120 seconds. Claim 14 In claim 9, the device for manufacturing a mobility part to which the molecular bonding is applied further comprises a forming device for forming a laminated member. Claim 15 A method for manufacturing a mobility component to which molecular bonding is applied comprises: a step of modifying the surface of a plastic member to form functional groups using a first surface modification device; a step of modifying the surface of a metal member to form functional groups using a second surface modification device; a step of coating an adhesive onto the surface-modified plastic member using a bar coater-embedded slot die coater with microchannels; a step of coating an adhesive onto the surface-modified metal member using a bar coater-embedded slot die coater equipped with a wire bar; and a step of drying the member coated with the adhesive using a drying device. A method for manufacturing a mobility component with molecular bonding applied, comprising the step of laminating the metal member and the plastic member using a laminator; wherein the bar coater-embedded slot die coater with microchannels includes: a housing having a fluid passage formed inside; an adhesive storage section where adhesive introduced from the outside is accumulated; a microchannel section having a plurality of microchannels to distribute adhesive introduced from the adhesive storage section and discharge adhesive through a plurality of discharge ports; and a bar for coating a coating target with adhesive introduced from the microchannel section; and wherein the bar coater-embedded slot die coater with a wire bar includes: a housing having a fluid passage formed inside; an adhesive storage section where adhesive introduced from the outside is accumulated; a microchannel section having a plurality of microchannels to distribute adhesive introduced from the adhesive storage section and discharge adhesive through a plurality of discharge ports; and a wire bar for coating a coating target with adhesive introduced from the microchannel section. Claim 16 A method for manufacturing a mobility component with molecular bonding applied, wherein the drying device dries the applied adhesive until it reaches a thickness of 10 nm or less in claim 15. Claim 17 A method for manufacturing a mobility component with applied molecular bonding, wherein each of the plurality of microchannels has a diameter of 500 micrometers or less, in accordance with claim 16. Claim 18 A process for manufacturing a mobility component to which molecular bonding is applied comprises: a first surface modification process for modifying the surface of a plastic member to form functional groups; a second surface modification process for modifying the surface of a metal member to form functional groups; a process of coating an adhesive onto the surface-modified plastic member using a bar-coater-embedded slot-die coater with microchannels; a process of coating an adhesive onto the surface-modified metal member using a bar-coater-embedded slot-die coater equipped with a wire bar; and a drying process for drying the member coated with the adhesive. A process for manufacturing a mobility component with molecular bonding applied, comprising: a laminating process for laminating the metal member and the plastic member; wherein the bar coater-embedded slot die coater with the microchannel applied comprises: a housing having a fluid passage formed inside; an adhesive storage unit in which adhesive introduced from the outside is accumulated; a microchannel unit having a plurality of microchannels to distribute the adhesive introduced from the adhesive storage unit and discharge the adhesive through a plurality of discharge ports; and a bar for coating the adhesive introduced from the microchannel unit onto a coating target. The bar coater-embedded slot die coater with the wire bar applied comprises: a housing having a fluid passage formed inside; an adhesive storage unit in which adhesive introduced from the outside is accumulated; a microchannel unit having a plurality of microchannels to distribute the adhesive introduced from the adhesive storage unit and discharge the adhesive through a plurality of discharge ports; and a wire bar for coating the adhesive introduced from the microchannel unit onto a coating target. Claim 19 In claim 18, the drying process for drying the member coated with the adhesive is a process for manufacturing a mobility component with molecular bonding applied, wherein the coated adhesive is dried until the thickness becomes 10 nm or less. Claim 20 A process for manufacturing a mobility component to which molecular bonding is applied, wherein each of the plurality of microchannels has a diameter of 500 micrometers or less in claim 19.

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