A method for manufacturing a glass fiber CVD molybdenum disulfide deicing composite material packaging box
By depositing graphene on glass fiber fabric and spraying conductive materials, combined with RTM molding process, the glass fiber CVD graphene packaging box solves the problems of de-icing and constant temperature of the packaging box in extreme environments, realizes a lightweight and high-strength packaging box design, and enhances environmental adaptability and practicality.
Patent Information
- Application Number
- CN202411822141.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2044-12-11
AI Technical Summary
Existing packaging boxes cannot effectively control temperature and humidity in cold or humid environments, leading to freezing or condensation, which affects sealing performance and damages precision products. In addition, traditional temperature control devices have high power consumption and poor flexibility, and cannot meet the needs of special tasks.
The packaging box is manufactured by depositing graphene on glass fiber CVD composite material and spraying conductive material on glass fiber fabric, combined with RTM molding process. The electrical and thermal conductivity of graphene is used to achieve Joule heating for de-icing and constant temperature control.
It enables the packaging box to de-ice and maintain a constant temperature in extreme environments, while maintaining its lightweight and high-strength characteristics, enhancing its environmental adaptability and practicality, and avoiding the shortcomings of traditional temperature control devices.
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Figure CN119704722B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the manufacture of composite material packaging boxes for aerospace or special functional purposes, in particular to a manufacturing method of a glass fiber CVD molybdenum disulfide deicing composite material packaging box. BACKGROUND
[0002] During the storage process of products in the field of aerospace and special functional precision instruments, special packaging boxes need to be manufactured to cope with the impact of possible impact vibration, temperature and humidity changes and the like on the products or instruments. Therefore, the designed and manufactured packaging boxes have special functions such as buffering, vibration isolation, constant temperature, constant humidity, salt mist prevention and mold prevention in the box body, and have important value for storing and transporting such products and instruments. When the packaging box is in a severe cold or humid environment, ice or water droplets may condense on the periphery of the packaging box due to temperature difference changes. Such media have strong permeability, which not only affects the sealing performance of the packaging box, but also causes irreparable damage to the products in the packaging box, especially to precision products with large temperature and humidity changes.
[0003] At present, packaging boxes are mostly made of aluminum alloy or composite materials such as glass fiber and carbon fiber. Packaging boxes and product fixing interfaces are made according to the shape and characteristics of the products. Foam and other materials are pasted inside the packaging box to achieve the effects of support, shock absorption and collision prevention. For example, a transportation packaging box (CN202322906677.9) is fixedly connected to one side of the upper box body and one side of the lower box body of the packaging box, and foam is adhered to the inside of the box body of the packaging box to achieve collision risk prevention. However, the temperature and humidity environment in the box body is not further controlled. For example, a composite material packaging box (CN202311633027.X) is provided with an inflation valve and an air tightness detector, and foam is pasted on the inner wall of the box body to achieve the characteristics of light weight, high strength, good air tightness and the like, which is the mainstream of packaging box application at present. However, when the packaging box is placed in a severe cold or humid environment, the packaging box cannot achieve constant temperature of the box body through heat conduction and other methods, and the storage environment needs to be further improved, which increases the cost. Moreover, when there is a special task that cannot provide a constant temperature environment, the precision parts are damaged.
[0004] The existing packaging box design does not have active temperature control. Under special conditions, auxiliary devices such as electric heating blankets are used for temperature control and deicing. Traditional metal-based electric heating materials are used, which often face problems such as high power consumption, low flexibility and intolerance to extreme environments. In terms of humidity control, the storage environment is improved or dry agents are built in. SUMMARY
[0005] The application aims to provide a manufacturing method of a glass fiber CVD molybdenum disulfide deicing composite material packaging box, which meets the needs of constant temperature and deicing of composite material packaging boxes for aerospace or special functional purposes.
[0006] The application is realized by the following technical solutions.
[0007] A manufacturing method of a glass fiber CVD molybdenum disulfide deicing composite material packaging box, comprising the following steps:
[0008] Step (1): glass fiber CVD molybdenum disulfide
[0009] The glass fiber fabric roll is taken as a substrate to continuously pass into a 980 DEG C chamber at a uniform speed to complete high-temperature deposition growth of graphene, so that different positions on the fabric surface experience the same flow field and uniform thermal field environment.
[0010] Further preferably, the glass fiber fabric roll is made by rolling glass fiber fabric to realize continuous molybdenum disulfide production on the surface thereof.
[0011] Further preferably, the chamber is connected by three reaction treatment chambers, the three treatment chambers are connected in series through a conveying channel, a valve unit is arranged between each treatment chamber, a vacuum pump is connected to each reaction treatment chamber and the conveying channel for vacuumizing, the three treatment chambers are respectively a glass fiber roll treatment chamber, a graphene growth treatment chamber and a winding and cooling treatment chamber, a take-up and pay-off roll and a conveying device are designed in each treatment chamber, the take-up and pay-off roll is fixed by a fixing device and is made of a quartz tube; the conveying device provides tension for the glass fiber roll; the glass fiber roll treatment chamber is a loading and unloading cavity unit for placing the glass fiber fabric roll to be treated; the graphene growth treatment chamber is used for depositing graphene on the spread glass fiber fabric; and the winding and cooling treatment chamber is used for collecting the graphene fiber fabric with molybdenum disulfide and cooling.
[0012] Further preferably, the graphene growth treatment chamber is provided with an air inlet and pressure control equipment, and the gas used for air inlet is ethylene; an air pump is connected to the outside of the glass fiber roll treatment chamber, and the glass fiber roll is inflated for normal pressure treatment during the placing process.
[0013] Further preferably, a cooling module is arranged in the winding and cooling treatment chamber to cool the glass fiber fabric after molybdenum disulfide is completed.
[0014] Further preferably, a graphite felt and a thermal insulation cotton thermal insulation layer are arranged on the inner wall of the graphene growth treatment chamber, a plurality of heating modules are arranged inside, and a temperature regulation chamber is additionally arranged outside the graphene growth treatment chamber to form a uniform temperature field in the graphene growth chamber and avoid heat loss.
[0015] Step (2): plasma spraying positive and negative electrodes
[0016] According to the design of the package box preform, the molybdenum glass fiber cloth made in step (1) is cut according to the shape required by the layer, the electrode direction is planned, the area to be sprayed with the electrode is pretreated, and the conductive material is sprayed on the molybdenum glass fiber cloth in the planned path by using plasma spraying.
[0017] Further preferably, the layers are distinguished in a manner that the angle of the radial fiber tows on the fiber fabric is 0°, and the angle of the counterclockwise rotation is positive, according to the manner of [(0° / 90°)(45° / -45°)], and are designed according to quasi-isotropy, and other layering manners meeting the use conditions can be adjusted.
[0018] Further preferably, the positive and negative electrodes use nickel-copper alloy.
[0019] Further preferably, the plasma spraying adopts a direct current driven plasma arc as a heat source.
[0020] Further preferably, the pretreatment of the electrode path area to be sprayed is to lift the tows on the glass fiber cloth by needling to achieve the effect of roughening, and microscopically, when the nickel-copper particles impact here, spreading, covering and tightly adhering to the concave-convex area of the fiber tows occur, and after cooling, the nickel-copper alloy and the convex points are occluded.
[0021] Step (3): Preparation of the package box preform
[0022] The molybdenum glass fiber cloth is sandwiched into the ordinary glass fiber fabric, and the chopped strand mat is laid, and after the layering design is completed, the multi-layer fiber fabric is connected into a whole along the thickness direction using warp knitting loops, and then a three-dimensional needling method is used to prepare the package box preform, and the extension end of the electrode is reserved for protection.
[0023] Step (4): RTM molding of the package box
[0024] Epoxy resin, vinyl resin, unsaturated polyester resin, and bismaleimide resin are used as resin materials for composite molding, the epoxy resin is a glycidyl ether type epoxy resin, the epoxy value is 0.51-0.54, the room temperature viscosity is 0.27 Pa·s, and the curing condition is 120°C / 4h; the lid and the bottom of the package box are molded separately and then assembled, the lid and the bottom are molded in the same way, the mold is provided with a glue injection port on the bottom plate, and a glue overflow port is provided at the rib on the upper part of the mold, the mold is molded by screw pressing and upper and lower molding, and during the glue injection process, the electrode extension end is placed in the core mold reserved groove.
[0025] Further preferably, the forming method and parameters of the packaging box are not unique, the present application is to wrap the preform on the core mold, in the corner area, the reinforcing rib area, the filling glass fiber fabric or the metal insert, all the laminating is completed, then the trimming is carried out, then the preform and the core mold are packaged into a vacuum bag to carry out vacuumizing, are sent into an oven, are placed in a female mold, a male mold sealing groove is placed with a silicone rubber strip, the bolt is tightened, the mold is closed, a resin injection machine is connected to the glue injection port, a vacuum source is connected to the glue overflow port, the vacuum degree is kept not less than 0.85 MPa, the injection machine temperature is set to 80-90 DEG C, the resin flow rate is 1-5 mL / s, the injection pressure is 0.5-0.6 MPa, the glue injection is completed, the glue injection port and the glue overflow port are closed, the mold is placed in a 120 DEG C oven as a whole, is cured for 4h to form, and is demolded and assembled after natural cooling, and the lead wire is welded at the electrode extension position.
[0026] The present application converts ethylene and other olefin substances into graphene at high temperature and uniformly deposits the graphene on glass fiber cloth (referred to as Meng graphene) by CVD method, simultaneously sprays a conductive material containing nickel on the glass fiber cloth with the graphene to draw out positive and negative electrodes, and then uses an RTM forming method in the field of composite materials to manufacture a packaging box, which can maintain the internal temperature of the packaging box constant by Joule heat during use, and can melt the ice on the outer surface of the packaging box by using heat energy to achieve the purpose of deicing, and the packaging box can be used as a separate system, so that the packaging box has good environmental adaptability and strong practicability. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 Schematic diagram of glass fiber graphene production equipment;
[0028] Figure 2 Schematic diagram of graphene growth chamber and conveying channel;
[0029] Figure 3 Schematic diagram of electrode manufacturing;
[0030] Figure 4 Schematic diagram of preform layering;
[0031] Figure 5 Schematic diagram of RTM forming mold structure.
[0032] The labels in the figure show: glass fiber roll processing chamber 1, graphene growth processing chamber 2, winding and cooling processing chamber 3, conveying channel 4, glass fiber fabric roll 5, valve unit 6, temperature control chamber 7, cooling module 8, glass fiber to be coated with graphene 9, heating module 10, graphene-coated glass fiber fabric 11, electrode 12, glass fiber cloth 13, metal insert 14, male mold 15, female mold 16, glue injection port 17, glue overflow port 18, core mold 19, bolt 20. DETAILED DESCRIPTION
[0033] The present application mainly utilizes the high surface resistance (which can be regulated within the range of 1-5000 Ω·sq -1 The excellent properties of graphene and glass fiber are perfectly combined, showing the flexibility of glass fiber and the conductivity and thermal conductivity of graphene, and the atomic or near-micron graphene has no effect on the process design of the fiber, and the composite packaging box can be made by mixing and laying the ordinary glass fiber, which can realize the lightweight and high-strength design, and meet the effect of constant temperature and deicing by converting joule heat into electric energy.
[0034] The packaging box is generally composed of a box cover and a box bottom, and a sealing ring is arranged between the box cover and the box bottom, and the box cover and the box bottom are pressed and closed by using a butterfly buckle. The composite packaging box is formed by using CVD graphene treated glass fiber and epoxy resin through an RTM forming process, and concave-convex rib structures are designed at intervals in the box body to ensure the strength of the box body. At the same time, the packaging box is provided with a handle or a lifting point like a conventional packaging box, which is convenient for carrying. The box body bottom is provided with a forklift groove, and the box cover and the box bottom are provided with a stacking interface, a waterproof and breathable valve and the like.
[0035] "CVD" is a chemical vapor deposition process, which is a technology for generating solid deposition by chemical reaction of gaseous substances on the surface of a solid.
[0036] "RTM" is a resin transfer molding method, which is a way of forming a composite material. The reinforced material such as fiber is placed in the mold, and the resin is injected under a certain temperature and pressure to be cured and formed.
[0037] Ethylene is used to provide a constant carbon source, and a continuous graphene film with a certain thickness is deposited on the surface of the glass fiber fabric through a high-temperature growth process. The continuous single-crystal graphene film grown by high-temperature epitaxy has a thickness of a unit layer to a sub-micron layer, which best reflects the excellent intrinsic properties of graphene, has good conductivity and thermal conductivity, and is formed into a packaging box by an RTM forming method, so as to achieve the effect of heating and deicing.
[0038] The present application will be described in detail in combination with the drawings and specific embodiments.
[0039] As Figures 1-5 shown, the specific steps of the method of the present application are as follows:
[0040] (1) CVD graphene of glass fiber.
[0041] In step (1), the glass fiber CVD graphene is prepared by continuously feeding a glass fiber fabric roll (5) as a substrate into a 980℃ chamber (such as a furnace) at a uniform speed. Figure 1The high-temperature deposition and growth of graphene is completed within the fabric, ensuring that different locations on the surface of the fiber fabric experience the same flow field and uniform thermal environment, thereby greatly improving the uniformity of graphene nucleation and growth.
[0042] The glass fiber fabric roll is made by rolling glass fiber fabric into rolls (5) to achieve continuous montmorillonite production on its surface.
[0043] The chamber ( Figure 1 The reaction chamber is composed of three interconnected reaction chambers connected in series via a transfer channel (4). A valve unit (6) is installed between each reaction chamber, and a vacuum pump is connected to each reaction chamber and the transfer channel.
[0044] The three processing chambers are a glass fiber roll placement chamber (1), a graphene growth chamber (2), and a winding and cooling chamber (3). Each chamber is equipped with a take-up and unwinding roller and a conveying device. The take-up and unwinding rollers are fixed in place by a quartz tube to withstand the high temperatures within the chamber. The conveying device provides tension to the glass fiber roll, preventing the glass fiber fabric from being pushed during graphene growth, which could lead to uneven surface coating. The glass fiber roll placement chamber (1) is for placing the glass fiber fabric roll to be processed and serves as a loading and unloading chamber unit. The graphene growth chamber (2) is used to deposit graphene on the spread-out glass fiber fabric. The winding and cooling chamber (3) is used to collect the coated graphene fiber fabric.
[0045] The inner wall of the graphene growth chamber (2) is provided with a heat insulation layer such as graphite felt and heat insulation cotton, and multiple heating modules (10) are set inside. At the same time, a temperature control chamber (7) is attached outside the graphene growth chamber. The main purpose is to form a uniform temperature field in the graphene growth chamber, avoid heat loss, and prevent uneven heat distribution in the chamber, which would affect the growth of graphene on the glass fiber.
[0046] Since the preparation process takes place in a vacuum environment, the graphene growth chamber needs to be vacuum-treated. Simultaneously, the chamber temperature and pressure must be controlled, and the transmission channel must also be evacuated to prevent outside air from entering the graphene growth chamber. Air intake and pressure control equipment are required. In this invention, the gas used for air intake is ethylene. Because the glass fiber roll placement chamber requires the placement and connection of the graphene-coated glass fiber (9), an external air pump is needed. During placement, the chamber is pressurized to atmospheric pressure so that the chamber door can be opened for processing.
[0047] After the glass fiber cloth is embossed, it needs to be wound up in the winding and cooling treatment chamber (3) for later use. The chamber is equipped with a cooling module (8) to cool the glass fiber cloth (11) after the embossing is completed.
[0048] (2) Plasma spraying electrode.
[0049] Step (2) said plasma spraying positive and negative electrode, according to the design of the package box preform, according to the shape of the required layer (such as Figure 3 ) The molybdenum glass fiber cloth (11) made in step (1) is cut, the electrode (12) direction is planned, the electrode path area to be sprayed is pretreated, and the nickel-containing material is sprayed on the molybdenum glass fiber cloth (11) according to the planned path by using plasma spraying.
[0050] The layering ( Figure 4 ) is according to the structure and shape of the packaging box, the cutting of the glass fiber is according to the design requirements, according to the force bearing characteristics of the packaging box, the invention is divided into 0°, counterclockwise rotation angle is positive, according to the way of [(0° / 90°)(45° / -45°)], but not limited to this way, the invention is designed according to quasi-isotropy, and other layering methods meeting the use conditions can be adjusted.
[0051] As Figure 3 shown, the positive and negative electrode (12) is obtained by leading the electrode (12) that can be electrified on the cut molybdenum glass fiber cloth (11), and the electrode transmits electric energy to make the molybdenum glass fiber cloth (11) generate Joule heat. The invention uses nickel-copper alloy as the positive and negative electrode (12), but is not limited to such materials, and other conductive materials can also be used to make electrodes.
[0052] The plasma spraying is a common spraying construction method on the market, which will not be described in detail. The invention mainly uses a direct current driven plasma arc as a heat source to heat the nickel-copper alloy to a molten state, and sprays it at high speed on the planned path of the molybdenum glass fiber cloth to form two uniform conductive electrodes (12).
[0053] The pretreated electrode path area to be sprayed is raised by needling the fiber bundle on the glass fiber cloth to achieve the effect of roughening. Microscopically, when the nickel-copper particles hit here, they spread, cover and adhere to the concave-convex area of the fiber bundle. After cooling, the nickel-copper alloy and the convex points are occluded, increasing the bonding strength between the interfaces.
[0054] (3) The making of the packaging box preform.
[0055] Step (3) said the making of the packaging box preform, the invention takes the molybdenum glass fiber cloth (11) sandwiched into the ordinary glass fiber fabric (13), and lays the chopped felt, so the technology is mature in the composite material industry, which will not be described in detail here, the layering ( Figure 3) Design good after the stack of multi-layer fabric using warp knitting loops along the thickness direction connected into a whole, and then made into a packaging box preform by three-dimensional needling method, and the extension of the electrode is reserved for protection.
[0056] (4) Packaging box RTM forming.
[0057] The packaging box RTM forming of step (4), the resin used in the application is epoxy resin, other vinyl resin, unsaturated polyester resin, bismaleimide resin can be used as resin material for composite forming, the epoxy resin used in the application belongs to glycidyl ether type epoxy resin, the epoxy value is 0.51-0.54, the room temperature viscosity is about 0.27 Pa˙s, and the curing condition is 120℃ / 4h. The cover and the bottom of the packaging box are formed respectively and then assembled, and the cover and the bottom are formed in the same way, as shown in Figure 5 The mold is provided with glue injection port (17) on the bottom plate, glue overflow port (18) is arranged at the rib of the upper part of the mold, the mold is pressed by bolt (20), and the upper and lower molds are formed in the way of molding, and the electrode (12) extension end is placed in the core mold reserved groove during glue injection process.
[0058] Further preferably, the forming method and parameters of the packaging box are not unique, the preform is sleeved on the core mold (19), the corner area, the reinforcing rib area, the glass fiber fabric (13) or the metal insert (14) are all laid up, and then the edges are trimmed, after that, the preform and the core mold (19) are packaged into a vacuum bag for vacuumizing, and sent into an oven, the temperature is 80℃, and the prepressing time is 2h, then the preform is placed in the female mold (16), the male mold (15) is sealed with a silicon rubber strip, the bolt (20) is tightened, the glue injection port (17) is connected with a resin injection machine, the glue overflow port (18) is connected with a vacuum source, the vacuum degree is kept not less than 0.85MPa, the temperature of the injection machine is set to 80-90℃, the resin flow rate is 1-5mL / s, the injection pressure is 0.5-0.6MPa, the glue injection is completed, the glue injection port (17) and the glue overflow port (18) are closed, the whole mold is placed in a 120℃ oven, and the curing forming is completed after 4h, and then the mold is demolded after natural cooling, and the lead wire is welded at the electrode extension position, so that the power supply is facilitated.
[0059] Compared with the prior art, the application has the following advantages:
[0060] (1) A manufacturing method of glass fiber CVD monolayer ice-removable composite material packaging box is provided.
[0061] (2) The conductive and heat-conductive performance of single crystal or micro-nano graphene is utilized to make heating source material in combination with the flexibility of glass fiber.
[0062] (3) The monolayer graphene glass fiber cloth is interlaced in the structure of the packaging box for co-forming.
[0063] (4) Using the characteristics of high temperature conversion of ethylene to graphene, by designing the monte device, CVD method is applied to non-metal glass fiber cloth.
[0064] (5) Without changing the characteristics of light weight and high strength of the packaging box, the joule heat is introduced, and the characteristics of ice removal and constant temperature of the packaging box in extreme environment are realized.
[0065] (6) The raw materials such as glass fiber, epoxy resin and ethylene are widely available and low in price. RTM forming process realizes low pressure rapid forming of packaging box, and has strong practicability.
[0066] (7) Through the characteristics of self-heating of the packaging box, it can be used as a separate system, and has strong environmental adaptability. Compared with the metal mesh embedded in the packaging box, the risk of breaking in the forming or transportation process is avoided, and the practicability is greatly improved.
Claims
1. A method of manufacturing a glass fiber CVD molybdenum disulfide deicing composite package, characterized by: Includes the following steps: Step (1): Glass fiber CVD montmorillonite The glass fiber fabric roll is used as a substrate and is continuously fed into a 980°C chamber at a uniform speed to complete the high-temperature deposition and growth of graphene, ensuring that different positions on the fabric surface experience the same flow field and uniform thermal environment. Step (2): Plasma spraying of positive and negative electrodes According to the design of the prefabricated packaging box, the montmorillonite glass fiber cloth made in step (1) is cut according to the shape required for the layup, the electrode direction is planned, the electrode path area to be sprayed is pretreated, and the conductive material is sprayed onto the montmorillonite glass fiber cloth according to the planned path using plasma spraying. Step (3): Fabrication of prefabricated packaging boxes The montmorillonite fiberglass cloth is sandwiched inside the ordinary fiberglass fabric, and chopped strand mat is laid at the same time. After the layering design is well done, the multiple fiber fabrics are connected into a whole by warp knitting loops along the thickness direction. Then, the packaging box preform is made by three-dimensional needle punching, and the extension end of the electrode is reserved for protection. Step (4): Packaging box RTM forming Epoxy resin, vinyl resin, unsaturated polyester resin, and bismaleimide resin are used as resin materials for composite molding; the lid and bottom of the packaging box are molded separately and then assembled. The lid and bottom are molded in the same way. The mold has a glue injection port on the bottom plate and an overflow port on the rib at the top of the mold. The mold is formed by bolt pressure and upper and lower mold closing. During the glue injection process, the electrode extension end is placed in the core mold reserved groove.
2. The method of claim 1, wherein the method further comprises: providing a glass fiber reinforced CVD molybdenum disulfide icephobic composite material package; and providing a glass fiber reinforced CVD molybdenum disulfide icephobic composite material package. The chamber is formed by connecting three reaction processing chambers, which are connected in series via a conveying channel. A valve unit is installed between each processing chamber, and a vacuum pump is connected to each reaction processing chamber and the conveying channel for evacuation. The three processing chambers are a glass fiber roll placement processing chamber, a graphene growth processing chamber, and a winding and cooling processing chamber. Each processing chamber is designed with take-up and unwinding rollers and a conveying device. The take-up and unwinding rollers are fixed by a fixing device made of quartz tubes; the conveying device provides tension to the glass fiber rolls. The glass fiber roll processing chamber holds the glass fiber fabric roll to be processed, serving as a loading and unloading chamber unit. The graphene growth processing chamber is used to deposit graphene on the spread-out glass fiber fabric. The winding and cooling processing chamber is used to collect the graphene-coated graphene fiber fabric and cool it.
3. The method of claim 2, wherein the method further comprises: providing a glass fiber CVD molybdenum disulfide ice-repellent composite packaging box. The graphene growth chamber is equipped with air intake and pressure control equipment, and the gas used for air intake is ethylene; the glass fiber roll processing room is connected to an air pump, which is filled with air to maintain normal pressure during placement so that the chamber door can be opened for processing.
4. The method of claim 3, wherein the glass fiber CVD molybdenum disulfide ice-removable composite packaging box is characterized in that: The inner wall of the graphene growth chamber is lined with graphite felt and insulation cotton, and multiple heating modules are installed inside. At the same time, a temperature control chamber is attached outside the graphene growth chamber to form a uniform temperature field and prevent heat loss.
5. The method for manufacturing a glass fiber CVD montmorillonite de-icing composite material packaging box according to claim 1, characterized in that: In step (2), the layup is distinguished by the radial fiber bundles parallel to the fiber fabric being 0° and the counterclockwise rotation angle being positive. It is carried out according to the method of [(0° / 90°)(45° / -45°)] and designed according to quasi-isotropy. Other layup methods can be adjusted to meet the usage conditions.
6. The method of claim 1, wherein the method further comprises: In step (2), the positive and negative electrodes are made of nickel-copper alloy. 7. The method for manufacturing a glass fiber CVD montmorillonite de-icing composite material packaging box according to claim 1, characterized in that: In step (2), the plasma spraying uses a DC-driven plasma arc as a heat source.
8. The method for manufacturing a glass fiber CVD montmorillonite de-icing composite material packaging box according to claim 1, characterized in that: In step (2), the pretreatment of the electrode path area to be sprayed is achieved by picking up the filaments on the glass fiber cloth by needle punching to achieve a roughening effect. Microscopically, when the nickel-copper particles hit this area, they spread out, covering and sticking tightly to the uneven area of the fiber filaments. After cooling, the nickel-copper alloy and the protrusions interlock.
9. The method for manufacturing a glass fiber CVD montmorillonite de-icing composite material packaging box according to claim 1, characterized in that: In step (4), when the packaging box is formed, the preform is placed on the core mold. The corner area, the reinforcing rib area, and the glass fiber fabric or metal insert are filled. After all the layers are laid, the edges are trimmed. Then the preform and the core mold are sealed in a vacuum bag and vacuumed. They are sent to the oven and pre-pressed at 80℃ for 2 hours. Then they are placed in the female mold. Silicone rubber strips are placed in the sealing groove of the male mold. The bolts are tightened and the mold is closed. The resin injection machine is connected to the injection port and the overflow port is connected to the vacuum source. The vacuum degree is kept not less than 0.85MPa. The injection machine temperature is set to 80~90℃, the resin flow rate is 1~5mL / s, and the injection pressure is 0.5~0.6MPa. After the injection is completed, the injection port and the overflow port are closed. The mold is placed in a 120℃ oven and cured for 4 hours. After natural cooling, it is demolded and assembled. The wires are welded to the electrode extension part.
10. The method for manufacturing a glass fiber CVD montmorillonite de-icing composite material packaging box according to claim 1, characterized in that: In step (4), the epoxy resin is a glycidyl ether type epoxy resin with an epoxy value of 0.51~0.54, a room temperature viscosity of 0.27 Pa˙s, and a curing condition of 120℃ / 4h.
Citation Information
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