Electric hair cutter blade prepared by utilizing arc ion plating and preparation method

Abstract

The invention discloses an electric hair cutter blade prepared by utilizing arc ion plating. The electric hair cutter blade comprises an electric hair cutter blade base material with a blade part; depositing a bonding layer material on the surface of the electric hair cutter blade base material; depositing a wear-resistant layer material or depositing one or more transition layer materials on the bonding layer material; wherein, if one or more transition layer materials are deposited on the bonding layer material, a wear-resistant layer material is deposited on the one or more transition layer materials; and the hardness of the coating formed by the bonding layer material, the transition layer material and the wear-resistant layer material is gradually increased from inside to outside. The invention further discloses a preparation method of the electric hair cutter blade prepared through arc ion plating. The surface of the stainless steel electric hair cutter blade is subjected to arc ion plating, the surface hardness is greatly improved, stainless steel with hard outside and tough inside and high strength is formed, and the sharpness and durability are improved; moreover, the friction coefficient of the shear blades is reduced, so that the frictional heating between the shear blades is reduced, the heating of the cutter head in the use process is reduced, the noise is reduced, and the clamping stagnation is avoided.

Description

Technical Field

[0001] This invention relates to an electric clipper blade prepared by arc ion plating and its preparation method. Background Technology

[0002] Electric clippers consist of fixed clippers, movable clippers, an adjusting handle, a housing, and electrical components housed within the housing. They require electricity for operation, with alternating current being the most common power source.

[0003] The key components of electric hair clippers are the two rows of overlapping blades. Generally, the upper row of teeth is called the moving blade (corresponding to the moving scissor blade), and the lower row of teeth is called the fixed blade (corresponding to the fixed scissor blade). During use, the fixed blade (corresponding to the fixed scissor blade) is stationary, while the moving blade (corresponding to the moving scissor blade) moves back and forth rapidly to cut the hair.

[0004] When the blade moves at high speed, friction generates heat, and it will become hot over time. Therefore, the blade head is a consumable part, and timely maintenance is necessary to extend its lifespan.

[0005] Furthermore, friction and heat can easily cause blade jamming and increased noise, affecting the user experience.

[0006] Different materials result in different levels of heat generation and varying degrees of sharpness. Currently, electric clipper blades on the market are generally divided into two types: ceramic and steel. Alloy blades have a Vickers hardness of HV700, while ceramic blades have a hardness of HV1100. The higher the hardness, the sharper the blade.

[0007] Stainless steel shear blades have a high coefficient of friction and low hardness, making them prone to wear and frictional heat during use. This can lead to problems such as loud noise, hot blades, jamming, and dulling of the blade edge.

[0008] Ceramic blades are hard and generally have a long lifespan. Their advantages include rust resistance, high sharpness, quiet operation, easier maintenance, and greater durability. However, they are not drop-resistant and are prone to breakage when dropped from heights.

[0009] Therefore, an electric pusher shear blade prepared by arc ion plating and its preparation method are provided. Summary of the Invention

[0010] The purpose of this invention is to overcome the shortcomings of existing methods by providing an electric clipper blade and its preparation method using arc ion plating. By performing arc ion plating on the surface of the stainless steel electric clipper blade, the surface hardness is greatly improved, forming a high-strength stainless steel with a hard outer layer and a tough inner layer, increasing sharpness and durability. Furthermore, it reduces the coefficient of friction of the blades, thereby reducing frictional heat between the blades, minimizing blade overheating during use, reducing noise, and preventing jamming.

[0011] The technical solution to achieve the above objectives is: An electric clipper blade prepared by arc ion plating, comprising: Electric shear blade substrate with blade section; A bonding layer material is deposited on the surface of the electric shear blade substrate; Deposit a wear-resistant layer material or deposit one or more transition layer materials on the bonding layer material; Wherein, if one or more transition layer materials are deposited on the bonding layer material, then a wear-resistant layer material is deposited on the one or more transition layer materials; the coating formed by the bonding layer material, transition layer material and wear-resistant layer material gradually increases in hardness from the inside to the outside.

[0012] Preferably, the substrate of the electric shear blade is one of martensitic stainless steel, duplex stainless steel, mold steel, heat-resistant steel, austenitic stainless steel, and ferritic stainless steel.

[0013] Preferably, the surfaces of the blades are a fixed shear blade surface and a planar surface, and a movable shear blade surface and a planar surface, respectively, and a bonding layer material is plated on the fixed shear blade surface and the planar surface and the movable shear blade surface and the planar surface of the electric shear blade substrate.

[0014] Preferably, the wear-resistant layer includes the following: The wear-resistant layer material is TiB2; The wear-resistant layer material is TiN; The wear-resistant layer material is TiAlN; The wear-resistant layer material is CrAlBN; The wear-resistant layer material is TiSiN; The wear-resistant layer material is CrAlSiN; The wear-resistant layer material is TiSiC; The wear-resistant layer material is CrNC.

[0015] Preferably, the bonding layer material fills the fixed shear blade and planar surface and the moving shear blade and planar surface with pits having a diameter of 0.01 to 0.05 micrometers, a depth of 0.01 to 0.05 micrometers, and a density of 20 to 100 pits per square micrometer.

[0016] A second aspect of the present invention provides a method for preparing an electric clipper blade using arc ion plating, comprising: Step S1: Place an electric shear blade substrate with a blade in an arc ion plating chamber equipped with an arc generation device. The electric shear blade with a blade includes a movable shear blade and a fixed shear blade substrate. The surfaces of the blades are the fixed shear blade surface and plane and the movable shear blade surface and plane, respectively. The fixed shear blade surface and adjacent plane and the movable shear blade surface and adjacent plane each form a blade tip. Step S2: Perform ion etching on the fixed shear blade surface and plane and the moving shear blade surface and plane. Step S3: Deposit a bonding layer material on the fixed shear blade surface and plane and the moving shear blade surface and plane, which have been ion-etched, using arc ion plating. Step S4: Deposit a wear-resistant layer material on the deposited bonding layer material using arc ion plating, or deposit one or more transition layer materials on the bonding layer material and then deposit the wear-resistant layer material to obtain an electric shear blade.

[0017] Preferably, in step S1, the substrate of the electric shear blade is one of martensitic stainless steel, duplex stainless steel, mold steel, heat-resistant steel, austenitic stainless steel, and ferritic stainless steel, and the surface roughness of the fixed shear blade and its flat surface and the moving shear blade and its flat surface is 0.01-3.2 micrometers.

[0018] Preferably, in step S2, the ion etching process performed on the fixed shear blade surface and plane and the moving shear blade surface and plane includes: Step S21: By using the arc discharge generated by the arc generating device, the process gas introduced into the arc ion plating chamber forms plasma. Step S22, then the plasma is used to etch the fixed shear blade edge and planar surface and the moving shear blade edge and planar surface to generate pits with a diameter between 0.01 and 0.05 micrometers, a depth of 0.01 to 0.05 micrometers, and a density of 20 to 100 pits per square micrometer; In step S21, the process gases are argon and hydrogen, the operating temperature is 250-550℃, and the duration is 15-100 minutes.

[0019] Preferably, in step S3, the arc ion plating is multi-arc ion plating.

[0020] Preferably, the wear-resistant layer includes the following surface deposition processes: The wear-resistant layer material is TiB2; The wear-resistant layer material is TiN; The wear-resistant layer material is TiAlN; The wear-resistant layer material is CrAlBN; The wear-resistant layer material is TiSiN; The wear-resistant layer material is CrAlSiN; The wear-resistant layer material is TiSiC; The wear-resistant layer material is CrNC; in, If the wear-resistant layer material of the moving shear blade is TiB2, then the fixed shear blade blade surface and planar surface are deposited with a diamond-like carbon coating, or any of the above surface deposition processes; among them, the moving shear blade with a TiB2 surface wear-resistant layer combined with the fixed shear blade with a diamond-like carbon coating is the most preferred.

[0021] The beneficial effects of this invention are as follows: This invention uses a moving scissor blade that is a combination of an arc-ion plated high-hardness film system and a fixed scissor blade with a diamond-like coating. This combination results in an extremely low coefficient of friction, down to 0.1, which greatly reduces frictional heat generation, reduces blade overheating during use, lowers noise, and prevents jamming. Arc-ion plating is applied to the surface of the stainless steel electric scissor blade, further reducing the surface friction coefficient, frictional heat generation, and blade overheating during use, lowering noise, and preventing jamming. This significantly increases surface hardness, forming a high-strength stainless steel with a hard outer surface and tough inner surface, increasing sharpness and durability. While improving the performance of the stainless steel scissor blade, it can also completely replace the ceramic moving scissor blade. Attached Figure Description

[0022] Figure 1 This is a flowchart of a method for preparing an electric pusher shear blade using arc ion plating according to the present invention; Figure 2 This is a flowchart illustrating the specific process of ion etching for the fixed shear blade surface and plane, and the moving shear blade surface and plane surface in this invention. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] The basis of this invention is the deposition of a hard film layer on an electric shear blade substrate using arc ion plating.

[0026] Compared to some common material vapor deposition methods, such as magnetron sputtering, arc ion plating has advantages in deposition uniformity and film density, and has been used in the field of industrial cutting tools for depositing hard films on machine tool tools. However, because arc ion plating has high requirements for equipment and process control, and is also costly, it is rarely used in the field of electric shearing blades.

[0027] Unlike machine tool cutters, the blades and cutting edges of electric shear blades are typically much thinner, which places higher demands on the adhesion between the hard film layer and the substrate during application. Films fabricated on electric shear blades using conventional vapor deposition methods often suffer from easy disintegration.

[0028] The method of the present invention uses an arc ion plating process combined with special technology to deposit surface materials on electric clipper blades. After deposition, not only can the appearance of the electric clipper blades be changed, but the performance of the electric clipper blades can also be greatly improved, giving them extremely high hardness and forming high strength with internal toughness and external hardness, as well as low roughness, low coefficient of friction, low noise, low heat generation and non-jamming characteristics.

[0029] An electric clipper blade prepared by arc ion plating includes: an electric clipper blade substrate with a blade portion; a bonding layer material deposited on the surface of the electric clipper blade substrate; a wear-resistant layer material or one or more transition layer materials deposited on the bonding layer material; wherein, if one or more transition layer materials are deposited on the bonding layer material, a wear-resistant layer material is deposited on the one or more transition layer materials; the coating formed by the bonding layer material, the transition layer material, and the wear-resistant layer material gradually increases in hardness from the inside to the outside.

[0030] In the embodiments, the substrate of the electric shear blade is one of martensitic stainless steel, duplex stainless steel, mold steel, heat-resistant steel, austenitic stainless steel, and ferritic stainless steel.

[0031] In the embodiment, the surfaces of the blades are the fixed blade blade surface and the planar surface, and the movable blade blade surface and the planar surface, respectively. A bonding layer material is plated on the fixed blade blade surface and the planar surface, and the movable blade blade surface and the planar surface of the electric shear blade substrate.

[0032] In the embodiments, the total thickness of the bonding layer material and the wear-resistant layer material is 0.2-18 micrometers; wherein, When the bonding layer material is TiAlN with a thickness of 0.4 to 9 micrometers, the transition layer material is TiAlSiN with a thickness of 0.4 to 9 micrometers and TiSiN with a thickness of 0.4 to 9 micrometers, from the inside to the outside. The wear-resistant layer material is TiB2 with a thickness of 0.4 to 9 micrometers. When the bonding layer material is TiN, the wear-resistant layer material is also TiN, with a total thickness of 0.4 to 9 micrometers; When the bonding layer material is TiAIN, the wear-resistant layer material is TiAIN, and the total thickness is 1 to 9 micrometers; When the bonding layer material is CrAlN with a thickness of 1 to 9 micrometers, the wear-resistant layer material is CrAlBN with a thickness of 2 to 18 micrometers; When the bonding layer material is TiAlN with a thickness of 0.4 to 9 micrometers, the transition layer material is an alternating stack of TiAlSiN with a thickness of 0.1 to 1 micrometer and TiAlN with a thickness of 0.1 to 1 micrometer, stacked 2 to 8 times, and the wear-resistant layer material is TiSiN with a thickness of 0.2 to 9 micrometers. When the bonding layer material is CrAlN with a thickness of 0.2 to 9 micrometers, the transition layer material is CrAlTiSiN with a thickness of 0.1 to 9 micrometers, and the wear-resistant layer material is CrAlSiN with a thickness of 0.4 to 9 micrometers; When the bonding layer material is CrAlN with a thickness of 1 to 9 micrometers, the transition layer materials are CrAlTiSiN with a thickness of 0.1 to 9 micrometers and TiSiN with a thickness of 0.4 to 9 micrometers, respectively, from the inside out. The wear-resistant layer material is TiSiC with a thickness of 1 to 9 micrometers. When the bonding layer material is CrN with a thickness of 1 to 9 micrometers, the wear-resistant layer material is CrNC with a thickness of 1 to 9 micrometers.

[0033] TiAlN, TiAlSiN, TiSiN, TiB2, TiN, CrAlN, CrAlBN, CrAlTiSiN, CrAlSiN, TiSiC, CrN, and CrNC are all coating materials.

[0034] In the embodiment, the bonding layer material fills the fixed shear blade and planar surface and the moving shear blade and planar surface with pits having a diameter of 0.01 to 0.05 micrometers, a depth of 0.01 to 0.05 micrometers, and a density of 20 to 100 pits per square micrometer.

[0035] The electric shear blades have significantly improved hardness, roughness, and noise levels as required by QB / T 1875-2013, and have also reduced blade temperature and jamming during use.

[0036] According to the requirements of QB / T 1875-2013, the hardness index can reach HRC70.8 or above, HV1500 or above, and even HV3800-4200, which is far higher than the standard requirement of HRC50 or above, and also far higher than the hardness of ceramic shears HV1100. According to the requirements of QB / T 1875-2013, the roughness index can be ≤Ra0.16, or even 0.05, which is far lower than the standard requirement and should not be greater than Ra0.8; The noise level required by QB / T 1875-2013 is <55dB, which is lower than the standard requirement of <60dB. In addition, the blade temperature is reduced during use. After 10, 20 and 30 minutes of continuous use, the temperature of a conventional cutting blade can reach 50°C, 53°C and 55°C, respectively. However, the temperature of the electric cutting blade is only 32°C, 34°C and 35°C after 10, 20 and 30 minutes of continuous use.

[0037] Furthermore, the issue of jamming during use of the electric clippers has been improved. The electric clipper blades did not jam during 30 minutes of continuous use; conventional clippers began to jam after 10 minutes, and the frequency of jamming increased after 20 minutes.

[0038] Furthermore, the core of the electric shear blade is made of high-strength alloy steel with a high-hardness surface, forming a hard-on-the-outside-hard-on-the-inside blade tip, which greatly improves the strength of the blade tip and thus enhances the durability of the shear blade.

[0039] Compared to arc ion plating, which involves directly depositing hard materials onto the substrate of an electric shear blade, the arc ion plating process of this invention has at least two advantages: firstly, it adds a crucial ion etching step before coating; secondly, this ion etching step and the subsequent coating process are completed in the same arc ion plating chamber. Therefore, when used to prepare electric shear blades with bonding and wear-resistant layers on the blade surface, adjacent planes, and friction surfaces of the moving and stationary shear blades, the resulting electric shear blades can possess extremely high hardness and form a high-strength blade with internal toughness and external hardness, exhibiting low roughness, low coefficient of friction, low noise, low heat generation, and resistance to jamming.

[0040] like Figure 1 As shown, a method for preparing an electric clipper blade using arc ion plating includes: Step S1: Place an electric shearing substrate with a blade in an arc ion plating chamber equipped with an arc generating device. The electric shearing substrate with a blade includes a movable shearing substrate and a fixed shearing substrate. The surfaces of the blades are the fixed shearing blade surface and plane and the movable shearing blade surface and plane, respectively.

[0041] In the embodiments, the electric clipper blade substrate is one of martensitic stainless steel, duplex stainless steel, die steel, heat-resistant steel, austenitic stainless steel, and ferritic stainless steel, and the surface roughness of the fixed blade cutting edge and planar surface and the moving blade cutting edge and planar surface is 0.01-3.2 micrometers. Due to their good comprehensive performance, martensitic stainless steel, duplex stainless steel, die steel, and heat-resistant steel are particularly preferred. Martensitic stainless steel models suitable for the electric clipper blade substrate of the present invention include, but are not limited to: 30Cr13, 40Cr13, 50Cr15MoV, 70Cr17MoV, 80Cr14MoV, 90Cr18MoV, and 17-4PH. Die steel models suitable for the electric clipper blade substrate of the present invention include, but are not limited to: Cr12MoV, SKD11, SKD61, DC53, and DAC55. Heat-resistant steel models suitable for the electric clipper blade substrate of the present invention include, but are not limited to: 4Cr9Si2. The electric clipper blade substrate can also be selected from suitable cemented carbide and cermet. However, the electric shear blade substrate of the present invention does not use pure ceramic, because ceramic itself usually has high hardness and does not require coating, and the plasma etching step of the present invention has poor applicability to ceramic substrates. In addition, ceramic itself as a substrate cannot solve its fragile characteristics.

[0042] In this embodiment, the electric clipper blade substrate already possesses the required shape for the final electric clipper blade. The electric clipper blade substrate is essentially plate-shaped, and the fixed blade edge and adjacent plane form a blade tip, while the moving blade edge and connected plane form a blade tip.

[0043] The blade and planar surfaces of the electric scissor blade substrate provided to the arc ion plating chamber are smooth. The method of the present invention involves forming microstructures on the blade surface to increase adhesion to the covering wear-resistant layer; therefore, the initial surface condition is important. If the initial surface is not smooth enough, the micromorphology formed by subsequent surface treatments is difficult to control, thus affecting the final product appearance and performance. Surface smoothness can be measured by the initial surface roughness. Typically, the surface roughness Ra of the initial electric scissor blade substrate does not exceed 6.5 micrometers, for example, 1-6.5 micrometers, preferably 0.05-0.5 micrometers, for example, 0.05-0.2 micrometers.

[0044] Step S2 involves performing ion etching on the fixed shear blade surface and plane, and the moving shear blade surface and plane.

[0045] like Figure 2 As shown, the ion etching process for the fixed shear blade surface and plane, and the moving shear blade surface and plane includes: Step S21: By using the arc discharge generated by the arc generating device, the process gas introduced into the arc ion plating chamber forms plasma. Step S22, then plasma etching is used to create pits with a diameter between 0.01 and 0.05 micrometers, a depth between 0.01 and 0.05 micrometers, and a density of 20 to 100 pits per square micrometer.

[0046] In step S21, the process gases are argon and hydrogen, the operating temperature is 250-550℃, preferably 350℃-500℃, and the duration is 15-100 minutes. The advantage of choosing these two process gases is that they do not cause adverse doping or contamination problems on the substrate surface, and they also have a greater chance of forming a highly active surface. Hydrogen helps create a reducing atmosphere on the surface to eliminate oxides, thereby ensuring the desired microstructure is obtained. A vacuum operation is continuously performed during the working phase to maintain a low-pressure state inside the chamber. This operating temperature range is beneficial because it does not produce harmful heat treatment effects on the cut substrate. Ideally, the plasma etching conditions are: temperature between 350℃ and 500℃, total argon gas flow of 1000 ml to 2000 ml, total hydrogen gas flow of 500 ml to 1000 ml, etching current of 250 A to 550 A, and etching time of 15 to 100 minutes. During ion etching, the etching current applied to generate a plasma arc capable of etching the substrate is quite large. Under such high current, high-energy ions sufficient to damage the substrate surface and form microstructures are generated, and these ions bombard the substrate for an extended period to achieve ion etching. In this invention, etching times of 20 minutes or more are generally essential, such as 20 minutes or more, 30 minutes or more, or 50 minutes or more. Typically, 90 minutes of etching is sufficient to form the desired surface microstructure. Further extending the etching time may reduce cost-effectiveness.

[0047] The pits formed on the substrate surface by ion etching have a diameter of 0.01-0.05 micrometers and a depth of 0.01-0.05 micrometers. Microscopic analysis of the substrate surface after ion etching revealed that, compared to surfaces without ion treatment or those only treated with conventional plasma cleaning, the ion-etched surface of this invention exhibits numerous densely packed micro-pits with a diameter of 0.01-0.05 micrometers and a depth of 0.01-0.05 micrometers. The pits are generally circular, although they may not be. The diameter here refers to the maximum dimension of the pit's upper edge. The pit depth refers to the distance from the bottom of the pit to its upper edge in the shear thickness direction. The density of the micro-pits is represented by the number of pits per unit area. Typically, the micro-pits appear uniformly and densely across the entire surface, with a density of approximately 10-100 pits per square micrometer, for example, approximately 15-100 pits, or approximately 30-90 pits per square micrometer. Without relying on any theory, these tiny pits are likely characteristic of the surface microstructures mentioned earlier. On surfaces with roughness below 1 micrometer, for example 0.1–0.5 micrometers, methods involving steps to further form these tiny pits unexpectedly result in extremely high shearing performance.

[0048] When the surface of the shear blade has the aforementioned microstructure or micromorphology with densely packed tiny pits, these pits can be used to deposit a bonding layer material, potentially allowing the bonding layer material to bond tightly with the shear blade. Furthermore, this allows the wear-resistant layer material subsequently deposited on the bonding layer material and the electric clipper blade substrate to exhibit excellent mechanical properties in all directions. This superior mechanical performance allows the complex mechanical interactions between the shear blade surface and the hair, including compression and friction, during hair cutting and the high-speed relative movement of the moving and stationary shear blades, to be effectively smoothed out and conducted to the electric clipper blade substrate. In this way, the damage to the bonding between the wear-resistant layer and the electric clipper blade substrate caused by these mechanical interactions is minimized, and the material damage to the surface of the wear-resistant layer is also greatly reduced.

[0049] Especially when the fixed shear blade surface is coated with a diamond-like carbon coating, the friction coefficient is greatly reduced (even less than 0.01), significantly decreasing the friction between the moving and fixed shear blades. This, in turn, reduces material damage to the wear-resistant layer surface. As a result, the wear-resistant layer remains undamaged even after multiple cuts, leading to electric shear blades that not only possess high sharpness but also high wear resistance and durability, exhibiting low friction coefficient, low noise, low heat generation, and resistance to jamming.

[0050] In this embodiment, the ion etching performed before deposition refers to the removal of a portion of the material from the electric scissor blade substrate by bombardment with ions on both the cutting edge and the smooth surface. This process creates a surface microstructure (also known as a surface substructure, which is a structure generated again on a smooth surface with low roughness, possibly at the submicron level) on top of the original substrate surface. This surface microstructure may provide a suitable deposition space with appropriate size and activity for the subsequent film layer, and may improve the bonding strength between the subsequently deposited film layer and the substrate.

[0051] Ion bombardment in the ion etching process can be generated by ions in a plasma state or by ions in other states, such as ion beams. When using plasma bombardment, the plasma can be generated by the arc discharge of an arc ion plating device, or by other means, such as inductively coupled plasma generated by coils. Ideally, the ion etching of this invention utilizes plasma generated by the discharge between the arc cathode and the anode inside the vacuum chamber of an arc ion plating device to perform ion bombardment.

[0052] In fact, the surface of the electric clipper blade substrate has basic roughness before ion etching. However, if the electric arc ion plating is performed directly without ion etching, it is impossible to obtain an electric clipper blade with extremely high hardness, high strength with internal toughness and external hardness, low roughness, low coefficient of friction, low noise, low heat generation, and no jamming.

[0053] Therefore, the significant performance improvement achieved by the electric shear blade of this invention is not simply due to the enhanced adhesion caused by surface unevenness resulting from ion etching. It is not based on any particular theory, but is also related to four other factors.

[0054] First, compared with other methods of roughening the surface, the uneven surface microstructure formed by ion etching may also optimize the force transmission and distribution at the cutting edge due to its shape and size. This not only makes the deposited hard film layer less likely to fall off, but also effectively transmits and disperses the external force on the cutting edge to the shearing substrate, thus improving its durability.

[0055] Secondly, the newly exposed surface microstructures created on the substrate surface during the ion etching process may have high activity for subsequent film layers. Compared to a relatively inert and rough surface, this highly active surface may further enhance the robust adhesion of the subsequently deposited film layers, greatly improving durability.

[0056] Third, the surface microstructure may promote the formation of crystalline phases in the subsequently deposited film that help improve the bonding hardness, ultimately exhibiting excellent electric shearing performance.

[0057] Fourth, the moving shear plate film layer formed by the method of the present invention is a relatively hard film layer, while the fixed shear plate is a diamond-like coating, which greatly reduces the coefficient of friction. When the moving and fixed shear plates rub back and forth, the friction force is greatly reduced and frictional heat generation and noise are reduced.

[0058] Step S3: Deposit a bonding layer material on the fixed shear blade and plane and the moving shear blade and plane surfaces that have undergone ion etching treatment using arc ion plating.

[0059] In this embodiment, the arc ion plating is a multi-arc ion plating.

[0060] Arc ion plating is a well-known coating technology. It uses the substrate as one electrode (anode) and the target material as another electrode (cathode). When a high voltage is applied, an electric arc discharge is formed between the two electrodes. This discharge causes the target electrode to release the coating material, which is then deposited onto the substrate under the influence of the electric field. Ionized gases in the atmosphere can also participate in the coating process. When multiple electrodes are present, multiple arcs are generated simultaneously for coating, which is called multi-arc ion plating.

[0061] Arc ion plating is carried out in an arc ion plating chamber. The arc ion plating chamber can be a reactor and is usually equipped with a gas input device and a vacuum extraction system.

[0062] An arc generation device is installed in the arc ion plating chamber. As described below, using an arc generation device for ion etching is preferred.

[0063] The electric shear substrate placed in the arc ion plating chamber is cleaned, a process also known as pre-furnace cleaning. Typical pre-furnace cleaning methods include multiple degreasing, dewaxing, and dust removal processes common in the electric shear industry. An advantageous final cleaning process is ultrasonic cleaning. By applying ultrasonic cleaning after other degreasing, dewaxing, and dust removal processes, grease, wax residue, and impurities on the substrate surface can be almost completely removed. After cleaning, the substrate is thoroughly dried.

[0064] Step S4: Deposit a wear-resistant layer material on the deposited bonding layer material using arc ion plating, or deposit one or more transition layer materials on the bonding layer material and then deposit a wear-resistant layer material thereafter, thereby obtaining an electric shear blade.

[0065] In this embodiment, the total thickness of the bonding layer material and the wear-resistant layer material is 0.2-18 micrometers; the surface deposition process includes, if: When the bonding layer material is TiAlN with a thickness of 0.4 to 9 micrometers, the transition layer material is TiAlSiN with a thickness of 0.4 to 9 micrometers and TiSiN with a thickness of 0.4 to 9 micrometers, from the inside to the outside. The wear-resistant layer material is TiB2 with a thickness of 0.4 to 9 micrometers, and the total thickness is 1.6 to 18 micrometers, more preferably 3 to 9 micrometers.

[0066] When the bonding layer material is TiN, the wear-resistant layer material is also TiN, and the total thickness is 0.4 to 9 micrometers, more preferably 1 to 9 micrometers.

[0067] When the bonding layer material is TiAIN, the wear-resistant layer material is also TiAIN, and the total thickness is 1 to 9 micrometers, more preferably 2 to 9 micrometers.

[0068] When the bonding layer material is CrAlN with a thickness of 1 to 9 micrometers, the wear-resistant layer material is CrAlBN with a thickness of 2 to 18 micrometers, and the total thickness is 3 to 18 micrometers, more preferably 3 to 11 micrometers.

[0069] When the bonding layer material is TiAlN with a thickness of 0.4 to 9 micrometers, the transition layer material is an alternating stack of TiAlSiN with a thickness of 0.1 to 1 micrometer and TiAlN with a thickness of 0.1 to 1 micrometer, stacked 2 to 8 times, and the wear-resistant layer material is TiSiN with a thickness of 0.2 to 9 micrometers, with a total thickness of 1 to 18 micrometers, more preferably 3 to 11 micrometers.

[0070] When the bonding layer material is CrAlN with a thickness of 0.2 to 9 micrometers, the transition layer material is CrAlTiSiN with a thickness of 0.1 to 9 micrometers, the wear-resistant layer material is CrAlSiN with a thickness of 0.4 to 9 micrometers, and the total thickness is 1 to 18 micrometers, more preferably 3 to 11 micrometers.

[0071] When the bonding layer material is CrAlN with a thickness of 1 to 9 micrometers, the transition layer material is CrAlTiSiN with a thickness of 0.1 to 9 micrometers and TiSiN with a thickness of 0.4 to 9 micrometers from the inside out, and the wear-resistant layer material is TiSiC with a thickness of 1 to 9 micrometers, with a total thickness of 2 to 18 micrometers, more preferably 3 to 11 micrometers.

[0072] When the bonding layer material is CrN with a thickness of 1 to 9 micrometers, the wear-resistant layer material is CrNC with a thickness of 1 to 9 micrometers, and the total thickness is 2 to 18 micrometers, more preferably 3 to 11 micrometers.

[0073] If the bonding layer material deposited on the moving shear blade cutting edge and the planar surface is TiAlN, the transition layer material is TiAlSiN and TiSiN from the inside to the outside, and the wear-resistant layer material is TiB2, then the fixed shear blade cutting edge and the planar surface are deposited with a diamond-like coating, or any of the above surface deposition processes.

[0074] In this embodiment, the bonding layer material deposited on the moving shear blade's cutting edge and planar surface is TiAlN, the transition layer material is TiAlSiN and TiSiN from the inside out, the wear-resistant layer material is TiB2, and a diamond-like carbon coating is deposited on the fixed shear blade's cutting edge and planar surface. The combination of these two materials is particularly noteworthy. The diamond-like carbon coating on the fixed shear blade greatly reduces the coefficient of friction. When the moving and fixed shear blades rub back and forth, the friction force, frictional heat generation, and noise are greatly reduced.

[0075] Implementation Case 1: Preparation of an electro-shearing disc with a TiAlN-TiSiN-TiB2 film system: The electro-shear film was prepared using the following steps. The preparation was performed four times, yielding four products of the same membrane system. The specific process parameters for each preparation were selected from the ranges given below. The performance of the four products was analyzed and characterized.

[0076] (1) Grind and polish the surface of the martensitic stainless steel base shear blade with the blade to a surface roughness of 0.1-3 micrometers, and then clean it with ultrasonic waves to remove oil, wax and dust.

[0077] (2) The cleaned electric shearing substrate is sent into the arc ion plating chamber and suspended.

[0078] (3) Evacuate the arc ion plating chamber to 0.005-0.008 Pa. Heat to 300-550℃ and introduce 1000-2000 ml of argon gas and 500-1000 ml of hydrogen gas. Use arc discharge to generate plasma with a working current of 350-500 A. Accelerate the hydrogen and argon ions in the plasma under the action of the electric field to bombard the smooth surface of the electric shearing blade substrate, performing ion etching on the substrate for 10-100 minutes to form honeycomb-like micro-pits. Microscopic analysis shows that the pit diameter is 0.01-0.05 μm and the depth is approximately 0.01-0.05 μm.

[0079] (4) Introduce N2 gas at a continuous pressure of 2-5 Pa. Turn on the arc of the TiAl target to start multi-arc ion plating. Deposit the TiAl layer in a high-current, low-voltage mode with a current of 250-550 A and a deposition time of 20-50 minutes. The deposition thickness is about 0.4-9 micrometers.

[0080] (5) Continuously introduce N2 gas at a pressure of 2-5 Pa. Turn on the arc of the TiSi target to perform multi-arc ion plating and deposit a TiAlSiN layer. The current is 250-550 A, the deposition time is 25-60 minutes, and the deposition thickness is about 0.4-9 micrometers.

[0081] (6) Continuously introduce N2 gas at a pressure of 2-5 Pa. Turn off the arc on the TiAl target and deposit the TiSiN layer. The current is 250-500 A, the deposition time is 25-75 minutes, and the deposition thickness is about 0.4-9 micrometers.

[0082] (7) Turn off the N2 gas and introduce Ar gas, maintaining a pressure of 2-5 Pa. Turn off the arc on the TiSi target and turn on the arc on the TiB2 target to perform multi-arc ion plating and deposit a TiB2 layer. The current is 250-500 A, the deposition time is 25-75 minutes, and the deposition thickness is approximately 0.4-9 micrometers.

[0083] (8) Remove the obtained electric pusher shear from the arc ion plating chamber.

[0084] The final composite coating on the surface of the electric shear blade is made of TiAlN as the bonding layer, TiAlSiN and TiSiN as the transition layers from the inside out, and TiB2 as the wear-resistant layer. The resulting electric shear blade, after testing, exhibits extremely high hardness and forms a high-strength blade with internal toughness and external hardness, as well as low roughness, low coefficient of friction, low noise, low heat generation, and resistance to jamming.

[0085] Vickers hardness was measured, and the result was HV3700-4100. The coefficient of friction VSNI was measured, and the result was 0.1-0.18.

[0086] The antioxidant temperature can be measured, and the antioxidant temperature can reach 1000-1200℃.

[0087] A moving shear plate with a TiB2 wear-resistant layer on its surface is paired with a fixed shear plate with a diamond coating on its surface.

[0088] According to the requirements of QB / T1875-2013, the roughness index can be ≤Ra0.1, and should not be greater than Ra0.8 if it is far below the standard requirement; The noise level required by QB / T1875-2013 is <50dB, which is lower than the standard requirement of <60dB. In addition, the blade temperature was reduced during use. After 10, 20, and 30 minutes of continuous use, the temperature of a conventional shear blade can reach 50°C, 53°C, and 55°C, respectively, while the temperature of the electric shear blade described above is only 32°C, 34°C, and 35°C after 10, 20, and 30 minutes of continuous use.

[0089] Furthermore, the issue of jamming during use of the electric clippers has been improved. The electric clipper blades did not jam during 30 minutes of continuous use; while conventional clippers began to jam after 10 minutes, and the frequency of jamming increased after 20 minutes.

[0090] The film obtained on the surface of the sheared sheet is silvery-white. The total thickness of the composite film layer consisting of the bonding layer, transition layer, and wear-resistant layer is about 2-18 micrometers. The bottom layer is a martensitic stainless steel substrate, followed by the bonding layer TiAlN, the transition layer TiAlSiN, the TiSiN, and the wear-resistant layer TiB2.

[0091] Implementation Case 2: Preparation of an electro-shear disc with a TiN film system: The electro-shear film was prepared using the following steps. The preparation was performed four times, yielding four products of the same membrane system. The specific process parameters for each preparation were selected from the ranges given below. The performance of the four products was analyzed and characterized.

[0092] Perform the same steps (1) through (3) and (8) as in Case 1.

[0093] Before (8), N2 gas is introduced in (4) at a continuous pressure of 2-5 Pa. Multi-arc ion plating is then initiated, and the arc of the Ti target is turned on. A TiN layer is deposited using a high-current, low-voltage mode with a current of 250-500 A and a deposition time of 25-75 minutes, resulting in a deposition thickness of approximately 0.4-9 micrometers. This directly forms a bonding layer and a wear-resistant layer, both made of the same material.

[0094] The final composite coating layer on the surface of the shear blade is TiN, and the wear-resistant layer is also TiN. The resulting electric shear blade, after testing, exhibits extremely high hardness and forms a high-strength structure with internal toughness and external hardness, as well as low roughness, low coefficient of friction, low noise, low heat generation, and resistance to jamming.

[0095] Vickers hardness was measured, with results ranging from HV2400 to 2700. The coefficient of friction VSNI was measured, with results ranging from 0.28 to 0.47.

[0096] The antioxidant temperature can be measured, and the antioxidant temperature can reach 550-750℃.

[0097] According to the requirements of QB / T1875-2013, the roughness index can be ≤Ra0.16, and it should not be greater than Ra0.8 if it is far below the standard requirement. The noise level required by QB / T1875-2013 is <54dB, which is lower than the standard requirement of <60dB. In addition, the blade temperature was reduced during use. After 10, 20, and 30 minutes of continuous use, the temperature of a conventional shear blade can reach 50°C, 53°C, and 55°C, respectively, while the temperature of the electric shear blade described above is only 33°C, 35°C, and 37°C after 10, 20, and 30 minutes of continuous use.

[0098] Furthermore, the issue of jamming during use of the electric clippers has been improved. The electric clipper blades did not jam during 30 minutes of continuous use; while conventional clippers began to jam after 10 minutes, and the frequency of jamming increased after 20 minutes.

[0099] The film obtained on the surface of the sheared sheet is gold in color. The total thickness of the composite film layer, which is the bonding layer and the wear-resistant layer, is about 0.4-9 micrometers. The bottom layer is a martensitic stainless steel substrate, followed by the bonding layer TiN layer and the wear-resistant layer TiN layer.

[0100] Implementation Case 3: Preparation of an electric shear plate with a CrAlN-CrAlBN film system: The electro-shear film was prepared using the following steps. The preparation was performed four times, yielding four products of the same membrane system. The specific process parameters for each preparation were selected from the ranges given below. The performance of the four products was analyzed and characterized.

[0101] Perform the same steps (1) through (3) and (8) as in Case 1.

[0102] Before (8), N2 gas is introduced in (4) at a continuous pressure of 2-5 Pa. The arc of the CrAl target is turned on to start multi-arc ion plating. The CrAlN layer is deposited in a high current and low voltage mode. The current is 250-500A, the deposition time is 25-55 minutes, and the deposition thickness is about 1-9 micrometers.

[0103] (5) Continuously introduce N2 gas at a pressure of 2-5 Pa. Turn on the arc of the CrAlB target to perform arc ion plating and deposit a CrAlBN layer. The current is 250-500 A, the deposition time is 25-75 minutes, and the deposition thickness is about 0.4-9 micrometers.

[0104] (6) Continuously introduce N2 gas at a pressure of 2-5 Pa. Turn off the arc on the CrAl target and deposit the CrAlBN layer. Use a current of 250-550 A, a deposition time of 30-70 minutes, and a deposition thickness of approximately 1-10 micrometers.

[0105] The final composite coating on the shear blade surface consists of a CrAlN bonding layer and a CrAlBN wear-resistant layer. The resulting electric shear blade, after testing, exhibits extremely high hardness and forms a high-strength structure with internal toughness and external hardness, along with low roughness, low coefficient of friction, low noise, low heat generation, and resistance to jamming.

[0106] Vickers hardness was measured, and the result was HV3700-4400. Friction coefficient VSNI was measured, and the result was 0.28-0.47.

[0107] The antioxidant temperature can be measured and can reach 950-1250℃.

[0108] According to the requirements of QB / T1875-2013, the roughness index can be ≤Ra0.17, and it should not be greater than Ra0.8 if it is far below the standard requirement. The noise level required by QB / T1875-2013 is <53dB, which is lower than the standard requirement of <60dB. In addition, the blade temperature was reduced during use. After 10, 20, and 30 minutes of continuous use, the temperature of a conventional shear blade can reach 50°C, 53°C, and 55°C, respectively, while the temperature of the electric shear blade described above is only 33°C, 35°C, and 36°C after 10, 20, and 30 minutes of continuous use.

[0109] Furthermore, the issue of jamming during use of the electric clippers has been improved. The electric clipper blades did not jam during 30 minutes of continuous use; while conventional clippers began to jam after 10 minutes, and the frequency of jamming increased after 20 minutes.

[0110] The film obtained on the surface of the sheared piece is gray in color. The total thickness of the composite film of the bonding layer and the wear-resistant layer is about 2-18 micrometers. The bottom layer is a martensitic stainless steel substrate, followed by two sublayers: the bonding layer CrAlN and the wear-resistant layer CrAlBN. Note that the wear-resistant layer CrAlBN is formed in steps (5) and (6). Because a CrAl target is used in step (5) but not in step (6), the part formed in step (5) has a slightly higher Al content than the part formed in step (6), even though the overall elemental count is the same.

[0111] Implementation Case 4: Preparation of an electric shear plate with a TiAlN film system: The electro-shear film was prepared using the following steps. The preparation was performed four times, yielding four products of the same membrane system. The specific process parameters for each preparation were selected from the ranges given below. The performance of the four products was analyzed and characterized.

[0112] Perform the same steps (1) through (3) and (8) as in Case 1.

[0113] Before (8), N2 gas is introduced in (4) at a continuous pressure of 2-5 Pa. Multi-arc ion plating is then initiated, and the arc of the TiAl target is turned on. The TiAl layer is deposited using a high-current, low-voltage mode with a current of 250-500 A and a deposition time of 35-95 minutes, resulting in a deposition thickness of approximately 1-9 micrometers. This directly forms a bonding layer and a wear-resistant layer, both made of the same material.

[0114] The final composite coating layer on the surface of the shear blade is TiAIN, and the wear-resistant layer is also TiAIN. The resulting electric shear blade, after testing, exhibits extremely high hardness and forms a high-strength structure with internal toughness and external hardness, as well as low roughness, low coefficient of friction, low noise, low heat generation, and resistance to jamming.

[0115] Vickers hardness was measured, and the result was HV3700-4100. Friction coefficient VSNI was measured, and the result was 0.28-0.48.

[0116] The antioxidant temperature can be measured and can reach 950-1150℃.

[0117] According to the requirements of QB / T1875-2013, the roughness index can be ≤Ra0.15, and it should not be greater than Ra0.8 if it is far below the standard requirement. The noise level required by QB / T1875-2013 is <53dB, which is lower than the standard requirement of <60dB. In addition, the blade temperature was reduced during use. After 10, 20, and 30 minutes of continuous use, the temperature of a conventional shear blade can reach 50°C, 53°C, and 55°C, respectively, while the temperature of the electric shear blade described above is only 34°C, 34°C, and 35°C after 10, 20, and 30 minutes of continuous use.

[0118] Furthermore, the issue of jamming during use of the electric clippers has been improved. The electric clipper blades did not jam during 30 minutes of continuous use; while conventional clippers began to jam after 10 minutes, and the frequency of jamming increased after 20 minutes.

[0119] The film obtained on the surface of the sheared sheet is blue-black in color. The total thickness of the composite film layer, which is the bonding layer and the wear-resistant layer, is about 1-9 micrometers. The bottom layer is a martensitic stainless steel substrate, followed by the bonding layer TiAlN and the wear-resistant layer TiAlN.

[0120] Implementation Case 5: Fabrication of an electro-shear sheet with an alternating stack of TiAlSiN and TiAlSiN films – TiSiN film system: The electro-shear film was prepared using the following steps. The preparation was performed four times, yielding four products of the same membrane system. The specific process parameters for each preparation were selected from the ranges given below. The performance of the four products was analyzed and characterized.

[0121] Perform the same steps (1) through (3) and (8) as in Case 1.

[0122] Before (8), N2 gas is introduced in (4) at a continuous pressure of 2-5 Pa. Multi-arc ion plating is started by turning on the arc of the TiAl target and depositing the TiAl layer in a high current and low voltage mode. The current is 250-550 A, the deposition time is 25-85 minutes, and the deposition thickness is about 0.4-9 micrometers.

[0123] (5) Continuously introduce N2 gas at a pressure of 2-5 Pa. Turn on the arc of the TiSi target to perform multi-arc ion plating and deposit a TiAlSiN layer. The current is 250-550 A, the deposition time is 20-65 minutes, and the deposition thickness is about 0.1-1 micrometer. Repeat steps (4)-(5) five times, in which the deposition thickness becomes about 0.1-1 micrometer in the repeated step (4).

[0124] (6) Continuously introduce N2 gas at a pressure of 2-5 Pa. Turn off the arc on the TiAl target and deposit the TiSiN layer. The current is 250-550 A, the deposition time is 30-70 minutes, and the deposition thickness is about 0.2-10 micrometers.

[0125] The final composite coating on the shear blade surface consists of a TiAlN bonding layer, an alternating stack of TiAlSiN and TiAlN transition layers, and a TiSiN wear-resistant layer. The resulting electric shear blade exhibits extremely high hardness and forms a high-strength structure with internal toughness and external hardness, along with low roughness, low coefficient of friction, low noise, low heat generation, and resistance to jamming.

[0126] Vickers hardness was measured, with results ranging from HV3800 to 4200. The coefficient of friction VSNI was measured, with results ranging from 0.08 to 0.22.

[0127] The antioxidant temperature can be measured and can reach 900-1100℃.

[0128] According to the requirements of QB / T1875-2013, the roughness index can be ≤Ra0.1, and should not be greater than Ra0.8 if it is far below the standard requirement; The noise level required by QB / T1875-2013 is <49dB, which is lower than the standard requirement of <60dB. In addition, the blade temperature was reduced during use. After 10, 20, and 30 minutes of continuous use, the temperature of a conventional shear blade can reach 50°C, 53°C, and 55°C, respectively, while the temperature of the electric shear blade described above is only 34°C, 34°C, and 35°C after 10, 20, and 30 minutes of continuous use.

[0129] Furthermore, the issue of jamming during use of the electric clippers has been improved. The electric clipper blades did not jam during 30 minutes of continuous use; while conventional clippers began to jam after 10 minutes, and the frequency of jamming increased after 20 minutes.

[0130] The film obtained on the surface of the sheared sheet is coffee-colored. The total thickness of the composite film layer, which is the bonding layer and the wear-resistant layer, is about 1-18 micrometers. The bottom layer is a martensitic stainless steel substrate, followed by a bonding layer TiAlN layer, a transition layer consisting of alternating stacks of TiAlSiN and TiAlN, and a wear-resistant layer TiSiN layer.

[0131] Implementation Case 6: Preparation of an electric shear plate with a CrAlN-CrAlTiSiN-CrAlSiN film system: The electro-shear film was prepared using the following steps. The preparation was performed four times, yielding four products of the same membrane system. The specific process parameters for each preparation were selected from the ranges given below. The performance of the four products was analyzed and characterized.

[0132] Perform the same steps (1) through (3) and (8) as in Case 1.

[0133] Before (8), N2 gas is introduced in (4) at a continuous pressure of 2-5 Pa. The arc of the CrAl target is turned on to start multi-arc ion plating. The CrAlN layer is deposited in a high current and low voltage mode with a current of 250-550 A and a deposition time of 35-75 minutes. The deposition thickness is about 0.2-9 micrometers.

[0134] (5) Continuously introduce N2 gas at a pressure of 2-5 Pa. Turn on the arc of the TiSi target to perform multi-arc ion plating and deposit a CrAlTiSiN layer. The current is 250-550 A, the deposition time is 25-75 minutes, and the deposition thickness is about 0.1-9 micrometers.

[0135] (6) Continuously introduce N2 gas at a pressure of 2-5 Pa. Turn off the arc on the TiSi target and turn on the arc on the Si target to perform multi-arc ion plating to deposit a CrAlSiN layer. The current is 250-550 A, the deposition time is 25-75 minutes, and the deposition thickness is about 0.4-9 micrometers.

[0136] The final composite coating on the shear blade surface consists of a bonding layer of CrAIN, a transition layer of CrAITiSiN, and a wear-resistant layer of CrAlSiN. The resulting electric shear blade, after testing, exhibits extremely high hardness and forms a high-strength structure with internal toughness and external hardness, along with low roughness, low coefficient of friction, low noise, low heat generation, and resistance to jamming.

[0137] Vickers hardness was measured, and the result was HV3800-4000. The coefficient of friction VSNI was measured, and the result was 0.32-0.48.

[0138] The antioxidant temperature can be measured and can reach 800-1100℃.

[0139] According to the requirements of QB / T1875-2013, the roughness index can be ≤Ra0.16, and it should not be greater than Ra0.8 if it is far below the standard requirement. The noise level required by QB / T1875-2013 is <52dB, which is lower than the standard requirement of <60dB. In addition, the blade temperature was reduced during use. After 10, 20, and 30 minutes of continuous use, the temperature of a conventional shear blade can reach 50°C, 53°C, and 55°C, respectively, while the temperature of the electric shear blade described above is only 34°C, 34°C, and 35°C after 10, 20, and 30 minutes of continuous use.

[0140] Furthermore, the issue of jamming during use of the electric clippers has been improved. The electric clipper blades did not jam during 30 minutes of continuous use; while conventional clippers began to jam after 10 minutes, and the frequency of jamming increased after 20 minutes.

[0141] The film obtained on the surface of the sheared piece is bronze in color. The total thickness of the composite film layer, which is the bonding layer and the wear-resistant layer, is about 1-10 micrometers. The bottom layer is a martensitic stainless steel substrate, followed by the bonding layer CrAIN layer, the transition layer CrAlTiSiN layer, and the wear-resistant layer CrAlSiN layer.

[0142] Implementation Case 7: Preparation of an electro-shearing disc with a CrAlN-CrAlTiSiN-TiSiN-TiSiC film system: The electro-shear film was prepared using the following steps. The preparation was performed four times, yielding four products of the same membrane system. The specific process parameters for each preparation were selected from the ranges given below. The performance of the four products was analyzed and characterized.

[0143] Perform the same steps (1) through (3) and (8) as in Case 1.

[0144] Before (8), N2 gas is introduced in (4) at a continuous pressure of 2-5 Pa. Multi-arc ion plating is started by turning on the arc of the CrAl target and depositing the CrAl layer in a high current and low voltage mode. The current is 250-550 A, the deposition time is 35-85 minutes, and the deposition thickness is about 1-9 micrometers.

[0145] (5) Continuously introduce N2 gas at a pressure of 2-5 Pa. Start multi-arc ion plating, turn on the arc of the TiSi target to deposit a CrAlTiSiN layer, with a current of 250-550 A, a deposition time of 35-85 minutes, and a deposition thickness of about 0.1-9 micrometers.

[0146] (6) Continuously introduce N2 gas at a pressure of 2-5 Pa. Turn off the arc on the CrAl target and deposit the TiSiN layer. The current is 250-550 A, the deposition time is 40-90 minutes, and the deposition thickness is about 0.4-9 micrometers.

[0147] (7) Turn off the N2 gas and introduce C2H2 gas. Maintain a pressure of 2-5 Pa to deposit the TiSiC layer. Use a current of 250-550 A, a deposition time of 40-90 minutes, and a deposition thickness of approximately 1-10 micrometers. The total amount of C2H2 gas is 500-1000 ml.

[0148] The final composite coating on the shear blade surface consists of a bonding layer of CrAlN, transition layers of CrAlTiSiN and TiSiN from the inside out, and a wear-resistant layer of TiSiC. The resulting electric shear blade exhibits extremely high hardness and forms a high-strength structure with internal toughness and external hardness, along with low roughness, low coefficient of friction, low noise, low heat generation, and resistance to jamming.

[0149] Vickers hardness was measured, with results ranging from HV3500 to 4000. The coefficient of friction (VSNI) was measured, with results ranging from 0.08 to 0.32. The antioxidant temperature can be measured, and the antioxidant temperature can reach 1000-1100℃.

[0150] According to the requirements of QB / T1875-2013, the roughness index can be ≤Ra0.13, and should not be greater than Ra0.8 if it is far below the standard requirement; The noise level required by QB / T1875-2013 is <51dB, which is lower than the standard requirement of <60dB. In addition, the blade temperature was reduced during use. After 10, 20, and 30 minutes of continuous use, the temperature of a conventional shear blade can reach 50°C, 53°C, and 55°C, respectively, while the temperature of the electric shear blade described above is only 34°C, 34°C, and 35°C after 10, 20, and 30 minutes of continuous use.

[0151] Furthermore, the issue of jamming during use of the electric clippers has been improved. The electric clipper blades did not jam during 30 minutes of continuous use; while conventional clippers began to jam after 10 minutes, and the frequency of jamming increased after 20 minutes.

[0152] The film obtained on the surface of the sheared sheet is copper-red in color. The total thickness of the composite film layer, which is the bonding layer and the wear-resistant layer, is about 3-18 micrometers. The bottom layer is a martensitic stainless steel substrate, followed by the bonding layer CrAl layer, the transition layer CrAlTiSiN layer, the TiSiN layer, and the wear-resistant layer TiSiC layer.

[0153] Implementation Case 8: Preparation of an electric shear plate with a CrN-CrNC film system: The electro-shear film was prepared using the following steps. The preparation was performed four times, yielding four products of the same membrane system. The specific process parameters for each preparation were selected from the ranges given below. The performance of the four products was analyzed and characterized.

[0154] Perform the same steps (1) through (3) and (8) as in Case 1.

[0155] Before (8), N2 gas is introduced in (4) at a continuous pressure of 2-5 Pa. The arc of the Cr target is turned on to start multi-arc ion plating. The CrN layer is deposited in a high current and low voltage mode with a current of 250-550 A and a deposition time of 35-75 minutes. The deposition thickness is about 1-9 micrometers.

[0156] (5) Introduce C2H2 gas at a continuous pressure of 2-5 Pa to deposit a CrNC layer. The current is 250-550 A, the deposition time is 35-85 minutes, and the deposition thickness is about 1-10 micrometers. The total flow rate of C2H2 gas is 500-1000 ml.

[0157] The final composite coating layer on the surface of the shear blade is made of CrN, and the wear-resistant layer is made of CrNC. The resulting electric shear blade, after testing, exhibits extremely high hardness and forms a high-strength blade with internal toughness and external hardness, as well as low roughness, low coefficient of friction, low noise, low heat generation, and resistance to jamming.

[0158] Vickers hardness was measured, with results ranging from HV1500 to 2500. The coefficient of friction, VSNI, was measured, with results ranging from 0.07 to 0.18. The antioxidant temperature can be measured, and the antioxidant temperature can reach 500-700℃.

[0159] According to the requirements of QB / T1875-2013, the roughness index can be ≤Ra0.08, and it should not be greater than Ra0.8 if it is far below the standard requirement. The noise level required by QB / T1875-2013 is <50dB, which is lower than the standard requirement of <60dB. In addition, the blade temperature was reduced during use. After 10, 20, and 30 minutes of continuous use, the temperature of a conventional shear blade can reach 50°C, 53°C, and 55°C, respectively, while the temperature of the electric shear blade described above is only 30°C, 31°C, and 32°C after 10, 20, and 30 minutes of continuous use.

[0160] Furthermore, the issue of jamming during use of the electric clippers has been improved. The electric clipper blades did not jam during 30 minutes of continuous use; while conventional clippers began to jam after 10 minutes, and the frequency of jamming increased after 20 minutes.

[0161] The film obtained on the surface of the sheared sheet is black in color. The total thickness of the composite film layer, which is the bonding layer and the wear-resistant layer, is about 2-18 micrometers. The bottom layer is a martensitic stainless steel substrate, followed by the bonding layer CrN layer and the wear-resistant layer CrNC layer.

[0162] Comparative Example 1 The electric shear blade was prepared in a manner similar to that of Example 2, but without the ion etching step. After ultrasonic cleaning of the electric shear blade substrate, it was placed in a separate plasma cleaning device for 5 minutes of plasma cleaning. It was then removed from the plasma cleaning device and transferred to an arc ion plating chamber. In this chamber, an arc ion plating process was used to deposit a TiN film, with a thickness of less than 2 micrometers.

[0163] The resulting electric clipper blades have a golden appearance. However, after a period of time, the decorative film layer on some of them cracked.

[0164] The remaining electric clipper blades coated with decorative film but with film cracking were tested and found to have lower properties such as friction coefficient and surface hardness than those of the present invention.

[0165] The results of the above embodiments all demonstrate that the method of the present invention can produce an electric shear blade with extremely high hardness and high strength, exhibiting characteristics such as internal toughness and external hardness, low roughness, low coefficient of friction, low noise, low heat generation, and resistance to jamming. A comparison with comparative examples shows that the method of the present invention achieves a significant performance improvement compared to arc ion plating, which does not involve ion etching in the same chamber as in the present invention.

[0166] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electric clipper blade prepared by arc ion plating, characterized in that, include: Electric shear blade substrate with blade section; A bonding layer material is deposited on the surface of the electric shear blade substrate; Deposit a wear-resistant layer material or deposit one or more transition layer materials on the bonding layer material; Wherein, if one or more transition layer materials are deposited on the bonding layer material, then a wear-resistant layer material is deposited on the one or more transition layer materials; the coating formed by the bonding layer material, transition layer material and wear-resistant layer material gradually increases in hardness from the inside to the outside.

2. The electric clipper blade prepared by arc ion plating according to claim 1, characterized in that, The substrate of the electric clipper blade is one of martensitic stainless steel, duplex stainless steel, mold steel, heat-resistant steel, austenitic stainless steel, and ferritic stainless steel.

3. The electric clipper blade prepared by arc ion plating according to claim 1, characterized in that, The surfaces of the blades are the fixed shear blade surface and the planar surface, and the movable shear blade surface and the planar surface, respectively. A bonding layer material is plated on the fixed shear blade surface and the planar surface, and the movable shear blade surface and the planar surface, of the electric shear blade substrate.

4. The electric clipper blade prepared by arc ion plating according to claim 1, characterized in that, The wear-resistant layer includes, but is not limited to, the following: The wear-resistant layer material is TiB2; The wear-resistant layer material is TiN; The wear-resistant layer material is TiAlN; The wear-resistant layer material is CrAlBN; The wear-resistant layer material is TiSiN; The wear-resistant layer material is CrAlSiN; The wear-resistant layer material is TiSiC; The wear-resistant layer material is CrNC with a thickness of [missing information].

5. The electric clipper blade prepared by arc ion plating according to claim 3, characterized in that, The bonding layer material fills the fixed shear blade and planar surface and the moving shear blade and planar surface with pits of 0.01 to 0.05 micrometers in diameter, 0.01 to 0.05 micrometers in depth, and 20 to 100 pits per square micrometer.

6. A method for preparing an electric clipper blade using arc ion plating, characterized in that, include: Step S1: Place an electric shear blade substrate with a blade in an arc ion plating chamber equipped with an arc generation device. The electric shear blade with a blade includes a movable shear blade and a fixed shear blade substrate. The surfaces of the blades are the fixed shear blade surface and plane and the movable shear blade surface and plane, respectively. The fixed shear blade surface and adjacent plane and the movable shear blade surface and adjacent plane each form a blade tip. Step S2: Perform ion etching on the fixed shear blade surface and plane and the moving shear blade surface and plane. Step S3: Deposit a bonding layer material on the fixed shear blade surface and plane and the moving shear blade surface and plane, which have been ion-etched, using arc ion plating. Step S4: Deposit a wear-resistant layer material on the deposited bonding layer material using arc ion plating, or deposit one or more transition layer materials on the bonding layer material and then deposit the wear-resistant layer material to obtain an electric shear blade.

7. The method for preparing an electric clipper blade using arc ion plating according to claim 6, characterized in that, In step S1, the substrate of the electric shear blade is one of martensitic stainless steel, duplex stainless steel, mold steel, heat-resistant steel, austenitic stainless steel, and ferritic stainless steel, and the surface roughness of the fixed shear blade and its flat surface and the moving shear blade and its flat surface is 0.01-3.2 micrometers.

8. The method for preparing an electric clipper blade using arc ion plating according to claim 6, characterized in that, In step S2, the ion etching process performed on the fixed shear blade surface and plane and the moving shear blade surface and plane includes: Step S21: By using the arc discharge generated by the arc generating device, the process gas introduced into the arc ion plating chamber forms plasma. Step S22, then the plasma is used to etch the fixed shear blade edge and planar surface and the moving shear blade edge and planar surface to generate pits with a diameter between 0.01 and 0.05 micrometers, a depth of 0.01 to 0.05 micrometers, and a density of 20 to 100 pits per square micrometer; In step S21, the process gases are argon and hydrogen, the operating temperature is 250-550℃, and the duration is 15-100 minutes.

9. The method for preparing an electric clipper blade using arc ion plating according to claim 6, characterized in that, In step S3, the arc ion plating is multi-arc ion plating.

10. A method for preparing an electric clipper blade using arc ion plating according to claim 6, characterized in that, The wear-resistant layer includes the following surface deposition processes: The wear-resistant layer material is TiB2; The wear-resistant layer material is TiN; The wear-resistant layer material is TiAlN; The wear-resistant layer material is CrAlBN; The wear-resistant layer material is TiSiN; The wear-resistant layer material is CrAlSiN; The wear-resistant layer material is TiSiC; The wear-resistant layer material is CrNC; in, If the wear-resistant layer material of the moving shear blade is TiB2, then the fixed shear blade blade surface and planar surface are deposited with a diamond-like carbon coating, or any of the above surface deposition processes; among them, the moving shear blade with a TiB2 surface wear-resistant layer combined with the fixed shear blade with a diamond-like carbon coating is the most preferred.

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