Production and processing technology of high-strength wear-resistant clutch driving gear

Abstract

The invention provides a production and machining process for a high-strength wear-resistant clutch driving gear, and relates to the technical field of gear machining. A high-strength wear-resistant clutch driving gear producing and machining technology comprises the following specific machining steps that S1, a gear blank is forged according to the specification of a gear, the outline of the gear is formed, and the allowance of follow-up machining is controlled; s2, quenching and tempering the forged and formed gear blank in a common heat treatment furnace or a mesh belt furnace, and detecting the modulated gear blank; s3, the shape and the inner hole of the prepared gear blank are turned, and the technical requirements of product drawings are met; s4, the turned gear blank is subjected to gear hobbing, and burrs generated in the gear hobbing process are removed; and S5, gear shaving is conducted on the gear obtained after gear hobbing, and the allowance of expansion of the common normal line after gear nitriding is reserved. A nitrogen-containing compound layer is formed on the surface of the gear by carrying out liquid nitriding treatment on the clutch driving gear, so that the wear resistance of the gear is greatly improved, and the service life of the gear is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of gear processing, in particular to a production and processing technology of a high-strength and wear-resistant clutch driving gear. Background Art

[0002] The clutch driving gear of a motorcycle engine is a key component that connects the engine crankshaft and the clutch. It transmits the engine power to the transmission system by meshing with the clutch driven plate. When the motorcycle starts, shifts gears, and stops, the clutch driving gear is responsible for disconnecting or connecting the power transmission path to ensure smooth power transmission. Since it needs to withstand high torque and work in a high temperature environment, after long-term use, the gear may wear out, resulting in poor meshing and poor power transmission.

[0003] In order to improve the wear resistance of gears, the traditional production and processing technology generally involves carburizing and quenching the gears to form a hardened layer with a high carbon content on the surface of the gears to improve the surface hardness and wear resistance of the gears. However, after long-term use of the gears, the hardened layer with a high carbon content on the surface of the gears will be worn away, and the gears will still wear out during subsequent use. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a production and processing technology for a high-strength and wear-resistant clutch driving gear, which solves the problem of insufficient wear resistance of the clutch driving gear.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A high-strength wear-resistant clutch driving gear production and processing technology, including the following specific processing steps:

[0008] S1. Forge the gear blank according to the gear specifications to form the gear profile and control the allowance for subsequent machining;

[0009] S2. Tempering the forged gear blank in a common heat treatment furnace or mesh belt furnace, and testing the tempered gear blank;

[0010] S3. Turn the shape and inner hole of the modulated gear blank to meet the technical requirements of the product drawing;

[0011] S4. performing gear hobbing on the turned gear blank and removing burrs generated during the gear hobbing process;

[0012] S5. Shaving the gear after gear hobbing, leaving a margin for the increase of the gear normal line after nitriding;

[0013] S6. The gear after shaving is nitrided in a liquid nitriding furnace;

[0014] S7. Sandblasting the surface of the gear after nitriding to remove impurities on the gear surface;

[0015] S8. Use ultrasonic waves to clean the dirt and dust on the surface of the gear, and then test the various data of the gear.

[0016] Preferably, after the gear blank in step 1 is forged, firstly, the surface of the gear blank is visually inspected for obvious defects such as cracks, scratches, and depressions. If qualified, the geometric dimensions of the gear blank are checked using a measuring tool to ensure that the dimensions of the gear blank meet the requirements of the drawing.

[0017] Preferably, the modulation process of the tooth blank in step 2 is divided into quenching and high-temperature tempering. The quenching process is to heat the tooth blank to 800°C-950°C, then keep it at this temperature for 30-60 minutes, and then quickly cool the tooth blank. The high-temperature tempering process is to heat the quenched tooth blank to 500°C-700°C, then keep it at this temperature for 3-6 hours, and then slowly cool it to room temperature. The hardness of the tooth blank after modulation treatment is HRC30-45, and the tensile strength is 94-145 kg / mm 2 .

[0018] Preferably, the turning of the gear blank in step three includes rough turning and fine turning, and the size of the gear blank is measured after turning to ensure that the size of the gear blank after turning meets the requirements of the drawing.

[0019] Preferably, a processing allowance of 0.01-0.03 mm is reserved on one side of the tooth profile surface of the gear after the gear hobbing in step 4, and the burrs of the gear are removed by a deburring machine.

[0020] Preferably, during the gear shaving process in step five, an expansion and contraction allowance of 0.003-0.015 mm needs to be reserved.

[0021] Preferably, the process of nitriding the gear in step six comprises the following steps:

[0022] 1) Clean and remove all oil stains on the gear surface;

[0023] 2) Preheat the gears in an electric furnace at 250℃-350℃ and keep warm for 20-40 minutes;

[0024] 3) Immediately place the preheated gear into a 530℃-580℃ liquid nitriding furnace, keep warm for 100-200 minutes, then take the gear out and let it cool naturally.

[0025] Preferably, the process of cleaning and removing all oil stains on the gear surface includes the following specific cleaning steps:

[0026] ①. Soak the gear in alcohol for 10-30 minutes;

[0027] ② Use a soft brush to gently scrub the gear surface until all the oil stains on the gear surface are cleaned;

[0028] ③. Wipe the gears dry with a clean cloth or paper towel, and then place them under hot air to dry quickly.

[0029] Preferably, the parameters of the sand blasting treatment in step seven are: sand particle size is 100#, sand blasting pressure is 0.25MPa, and sand blasting time is 8 minutes.

[0030] Preferably, the detection of various gear data in step eight includes the detection of the normal line variation, tooth direction tolerance, pitch limit deviation, base pitch limit deviation, tooth shape tolerance, surface hardness after nitriding, total nitriding layer depth and core hardness.

[0031] Working principle: This process adopts the method of tempering and nitriding treatment. The strength of the gear is ensured by tempering treatment, and then mechanical finishing is carried out to ensure the dimensional accuracy of the gear. Finally, liquid nitriding treatment is carried out to form a nitrogen-containing compound layer on the surface of the gear. This compound layer has extremely high wear resistance, which is 8-10 times that of the traditional carburizing and quenching layer, meeting the wear resistance requirements of the gear.

[0032] (III) Beneficial effects

[0033] The present invention provides a production and processing technology for a high-strength and wear-resistant clutch driving gear. It has the following beneficial effects:

[0034] 1. By finally performing liquid nitriding treatment on the clutch driving gear, a nitrogen-containing compound layer is formed on the gear surface, which greatly improves the wear resistance of the gear and extends the service life of the gear.

[0035] 2. By modulating the clutch driving gear, the strength of the gear itself is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The present invention is a flowchart of a production process of a high-strength and wear-resistant clutch driving gear. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1:

[0039] like Figure 1 As shown, the embodiment of the present invention provides a high-strength wear-resistant clutch driving gear production and processing technology, including the following specific processing steps:

[0040] S1. Forge the gear blank according to the gear specifications to form the gear profile and control the allowance for subsequent machining;

[0041] S2. Tempering the forged gear blank in a common heat treatment furnace or mesh belt furnace, and testing the tempered gear blank;

[0042] S3. Turn the shape and inner hole of the modulated gear blank to meet the technical requirements of the product drawing;

[0043] S4. performing gear hobbing on the turned gear blank and removing burrs generated during the gear hobbing process;

[0044] S5. Shaving the gear after gear hobbing, leaving a margin for the increase of the gear normal line after nitriding;

[0045] S6. The gear after shaving is nitrided in a liquid nitriding furnace;

[0046] S7. Sandblasting the surface of the gear after nitriding to remove impurities on the gear surface;

[0047] S8. Use ultrasonic waves to clean the dirt and dust on the surface of the gear, and then test the various data of the gear.

[0048] After the gear blank in step 1 is forged, first visually inspect the surface of the gear blank for obvious cracks, scratches, dents and other defects. If qualified, use a measuring tool to check the geometric dimensions of the gear blank to ensure that the dimensions of the gear blank meet the requirements of the drawing.

[0049] Products with defects such as cracks, scratches, and dents will be scrapped to ensure the quality of the finished products.

[0050] In step 2, the modulation process of the gear blank is divided into quenching and high temperature tempering. The quenching process is to heat the gear blank to 800℃-950℃, then keep it at this temperature for 30-60 minutes, and then quickly cool the gear blank. The high temperature tempering process is to heat the quenched gear blank to 500℃-700℃, then keep it at this temperature for 3-6 hours, and then slowly cool it to room temperature. The hardness of the gear blank after modulation is HRC30-45, and the tensile strength is 94-145 kg / mm 2 .

[0051] The insulation time for gears with different nominal diameters is different. The larger the nominal diameter of the gear, the longer the insulation time required.

[0052] The turning of the gear blank in step three includes rough turning and fine turning. After turning, the size of the gear blank is measured to ensure that the size of the gear blank after turning meets the requirements of the drawing.

[0053] In step 4, a processing allowance of 0.01-0.03 mm is reserved on one side of the tooth profile surface of the gear after gear hobbing, and the burrs of the gear are removed by a deburring machine.

[0054] In step 5, a 0.003-0.015mm expansion and contraction allowance needs to be reserved during the gear shaving process.

[0055] The amount of expansion and contraction reserved after shaving is determined according to the different changes in the tooth profile and normal length of gears made of different materials during nitriding.

[0056] The process of nitriding the gear in step six includes the following steps:

[0057] 1) Clean and remove all oil stains on the gear surface;

[0058] 2) Preheat the gears in an electric furnace at 250℃-350℃ and keep warm for 20-40 minutes;

[0059] 3) Immediately place the preheated gear into a 530℃-580℃ liquid nitriding furnace, keep warm for 100-200 minutes, then take the gear out and let it cool naturally.

[0060] The process of cleaning and removing all oil stains on the gear surface includes the following specific cleaning steps:

[0061] ①. Soak the gear in alcohol for 10-30 minutes;

[0062] ② Use a soft brush to gently scrub the gear surface until all the oil stains on the gear surface are cleaned;

[0063] ③. Wipe the gears dry with a clean cloth or paper towel, and then place them under hot air to dry quickly.

[0064] The time the gears are immersed in alcohol is determined according to the stubbornness of the oil stains on the gear surface. The wiped gears can be quickly dried under hot air.

[0065] The parameters of the sand blasting treatment in step seven are: sand particle size is 100#, sand blasting pressure is 0.25MPa, and sand blasting time is 8 minutes.

[0066] The detection of various gear data in step eight includes the detection of the normal line variation, tooth direction tolerance, pitch limit deviation, base pitch limit deviation, tooth shape tolerance, surface hardness after nitriding, total nitriding layer depth and core hardness.

[0067] The hardness of the gear core is measured using a Rockwell hardness tester, and the surface hardness of the gear after nitriding is measured using a Vickers hardness tester.

[0068] Embodiment 2:

[0069] A high-strength wear-resistant clutch driving gear production and processing technology includes the following specific processing steps:

[0070] S1. Forge the gear blank according to the gear specifications to form the gear profile and control the allowance for subsequent machining;

[0071] S2. Tempering the forged gear blank in a common heat treatment furnace or mesh belt furnace, and testing the tempered gear blank;

[0072] S3. Turn the shape and inner hole of the modulated gear blank to meet the technical requirements of the product drawing;

[0073] S4. performing gear hobbing on the turned gear blank and removing burrs generated during the gear hobbing process;

[0074] S5. Shaving the gear after gear hobbing, leaving a margin for the increase of the gear normal line after nitriding;

[0075] S6. The gear after shaving is nitrided in a liquid nitriding furnace;

[0076] S7. Sandblasting the surface of the gear after nitriding to remove impurities on the gear surface;

[0077] S8. Use ultrasonic waves to clean the dirt and dust on the surface of the gear, and then test the various data of the gear.

[0078] After the gear blank in step 1 is forged, first visually inspect the surface of the gear blank for obvious cracks, scratches, dents and other defects. If qualified, use a measuring tool to check the geometric dimensions of the gear blank to ensure that the dimensions of the gear blank meet the requirements of the drawing.

[0079] In step 2, the modulation process of the gear blank is divided into quenching and high-temperature tempering. The quenching process is to heat the gear blank to 850°C, then keep it at this temperature for 40 minutes, and then quickly cool the gear blank. The high-temperature tempering process is to heat the quenched gear blank to 550°C, then keep it at this temperature for 4 hours, and then slowly cool it to room temperature.

[0080] The turning of the gear blank in step three includes rough turning and fine turning. After turning, the size of the gear blank is measured to ensure that the size of the gear blank after turning meets the requirements of the drawing.

[0081] In step 4, a machining allowance of 0.014 mm is reserved on one side of the tooth profile of the gear after gear hobbing, and the burrs of the gear are removed by a deburring machine.

[0082] In step 5, a 0.007mm expansion and contraction allowance needs to be reserved during the gear shaving process.

[0083] The process of nitriding the gear in step six includes the following steps:

[0084] 1) Clean and remove all oil stains on the gear surface;

[0085] 2) Preheat the gear in a 280℃ electric furnace and keep it warm for 25 minutes;

[0086] 3) Immediately place the preheated gear into a 550°C liquid nitriding furnace, keep warm for 130 minutes, then take the gear out and allow it to cool naturally.

[0087] The process of cleaning and removing all oil stains on the gear surface includes the following specific cleaning steps:

[0088] ①. Soak the gear in alcohol for 20 minutes;

[0089] ② Use a soft brush to gently scrub the gear surface until all the oil stains on the gear surface are cleaned;

[0090] ③. Wipe the gears dry with a clean cloth or paper towel, and then place them under hot air to dry quickly.

[0091] The parameters of the sand blasting treatment in step seven are: sand particle size is 100#, sand blasting pressure is 0.25MPa, and sand blasting time is 8 minutes.

[0092] The detection of various gear data in step eight includes the detection of the normal line variation, tooth direction tolerance, pitch limit deviation, base pitch limit deviation, tooth shape tolerance, surface hardness after nitriding, total nitriding layer depth and core hardness.

[0093] Embodiment three:

[0094] A high-strength wear-resistant clutch driving gear production and processing technology includes the following specific processing steps:

[0095] S1. Forge the gear blank according to the gear specifications to form the gear profile and control the allowance for subsequent machining;

[0096] S2. Tempering the forged gear blank in a common heat treatment furnace or mesh belt furnace, and testing the tempered gear blank;

[0097] S3. Turn the shape and inner hole of the modulated gear blank to meet the technical requirements of the product drawing;

[0098] S4. performing gear hobbing on the turned gear blank and removing burrs generated during the gear hobbing process;

[0099] S5. Shaving the gear after gear hobbing, leaving a margin for the increase of the gear normal line after nitriding;

[0100] S6. The gear after shaving is nitrided in a liquid nitriding furnace;

[0101] S7. Sandblasting the surface of the gear after nitriding to remove impurities on the gear surface;

[0102] S8. Use ultrasonic waves to clean the dirt and dust on the surface of the gear, and then test the various data of the gear.

[0103] After the gear blank in step 1 is forged, first visually inspect the surface of the gear blank for obvious cracks, scratches, dents and other defects. If qualified, use a measuring tool to check the geometric dimensions of the gear blank to ensure that the dimensions of the gear blank meet the requirements of the drawing.

[0104] In step 2, the modulation process of the gear blank is divided into quenching and high-temperature tempering. The quenching process is to heat the gear blank to 910°C, then keep it at this temperature for 50 minutes, and then quickly cool the gear blank. The high-temperature tempering process is to heat the quenched gear blank to 620°C, then keep it at this temperature for 5 hours, and then slowly cool it to room temperature.

[0105] The turning of the gear blank in step three includes rough turning and fine turning. After turning, the size of the gear blank is measured to ensure that the size of the gear blank after turning meets the requirements of the drawing.

[0106] In step 4, a machining allowance of 0.022 mm is reserved on one side of the tooth profile surface of the gear after gear hobbing, and the burrs of the gear are removed by a deburring machine.

[0107] In step 5, a 0.012mm expansion and contraction allowance needs to be reserved during the gear shaving process.

[0108] The process of nitriding the gear in step six includes the following steps:

[0109] 1) Clean and remove all oil stains on the gear surface;

[0110] 2) Preheat the gear in a 320℃ electric furnace and keep it warm for 35 minutes;

[0111] 3) Immediately place the preheated gear into a 560°C liquid nitriding furnace, keep warm for 160 minutes, then take the gear out and allow it to cool naturally.

[0112] The process of cleaning and removing all oil stains on the gear surface includes the following specific cleaning steps:

[0113] ①. Soak the gear in alcohol for 25 minutes;

[0114] ② Use a soft brush to gently scrub the gear surface until all the oil stains on the gear surface are cleaned;

[0115] ③. Wipe the gears dry with a clean cloth or paper towel, and then place them under hot air to dry quickly.

[0116] The parameters of the sand blasting treatment in step seven are: sand particle size is 100#, sand blasting pressure is 0.25MPa, and sand blasting time is 8 minutes.

[0117] The detection of various gear data in step eight includes the detection of the normal line variation, tooth direction tolerance, pitch limit deviation, base pitch limit deviation, tooth shape tolerance, surface hardness after nitriding, total nitriding layer depth and core hardness.

[0118] Embodiment 4:

[0119] The clutch driving gear of a 250CC motorcycle of a certain factory is made of 42CrMo, with an outer diameter of φ37mm and a thickness of 26mm. The requirements are: the normal length is within 0.02mm, the tooth tolerance is within 0.011mm, the pitch limit deviation is within 0.014mm, the base pitch limit deviation is within 0.013mm, the tooth shape tolerance is within 0.013mm, the surface hardness after nitriding is HV≧650, the core hardness is HRC32-38, and the total nitriding layer depth is ≧0.2mm.

[0120] The specific implementation steps are: including the following specific processing steps:

[0121] S1. Forge the gear blank according to the gear specifications to form the gear profile and control the allowance for subsequent machining;

[0122] S2. Tempering the forged gear blank in a common heat treatment furnace or mesh belt furnace, and testing the tempered gear blank;

[0123] S3. Turn the shape and inner hole of the modulated gear blank to meet the technical requirements of the product drawing;

[0124] S4. performing gear hobbing on the turned gear blank and removing burrs generated during the gear hobbing process;

[0125] S5. Shaving the gear after gear hobbing, leaving a margin for the increase of the gear normal line after nitriding;

[0126] S6. The gear after shaving is nitrided in a liquid nitriding furnace;

[0127] S7. Sandblasting the surface of the gear after nitriding to remove impurities on the gear surface;

[0128] S8. Use ultrasonic waves to clean the dirt and dust on the surface of the gear, and then test the various data of the gear.

[0129] After the gear blank in step 1 is forged, first visually inspect the surface of the gear blank for obvious cracks, scratches, dents and other defects. If qualified, use a measuring tool to check the geometric dimensions of the gear blank to ensure that the dimensions of the gear blank meet the requirements of the drawing.

[0130] In step 2, the modulation process of the gear blank is divided into quenching and high-temperature tempering. The quenching process is to heat the gear blank to 880°C, then keep it at this temperature for 48 minutes, and then quickly cool the gear blank. The high-temperature tempering process is to heat the quenched gear blank to 600°C, then keep it at this temperature for 4.5 hours, and then slowly cool it to room temperature.

[0131] The turning of the gear blank in step three includes rough turning and fine turning. After turning, the size of the gear blank is measured to ensure that the size of the gear blank after turning meets the requirements of the drawing.

[0132] In step 4, a machining allowance of 0.02 mm is reserved on one side of the tooth profile of the gear after gear hobbing, and the burrs of the gear are removed by a deburring machine.

[0133] In step 5, a 0.01mm expansion and contraction allowance needs to be reserved during the gear shaving process.

[0134] The process of nitriding the gear in step six includes the following steps:

[0135] 1) Clean and remove all oil stains on the gear surface;

[0136] 2) Preheat the gear in a 300℃ electric furnace and keep it warm for 25 minutes;

[0137] 3) Immediately place the preheated gear into a 560°C liquid nitriding furnace, keep warm for 120 minutes, then take the gear out and allow it to cool naturally.

[0138] The process of cleaning and removing all oil stains on the gear surface includes the following specific cleaning steps:

[0139] ①. Soak the gear in alcohol for 15 minutes;

[0140] ② Use a soft brush to gently scrub the gear surface until all the oil stains on the gear surface are cleaned;

[0141] ③. Wipe the gears dry with a clean cloth or paper towel, and then place them under hot air to dry quickly.

[0142] The parameters of the sand blasting treatment in step seven are: sand particle size is 100#, sand blasting pressure is 0.25MPa, and sand blasting time is 8 minutes.

[0143] The detection of various gear data in step eight includes the detection of the normal line variation, tooth direction tolerance, pitch limit deviation, base pitch limit deviation, tooth shape tolerance, surface hardness after nitriding, total nitriding layer depth and core hardness.

[0144] The test results are: normal line variation ≦0.15mm, tooth direction tolerance ≦0.008mm, pitch limit deviation ≦0.011mm, base pitch limit deviation ≦0.011mm, tooth shape tolerance ≦0.008mm, surface hardness after nitriding is HV700, total nitriding layer depth is 0.22mm, core hardness is HRC36-38, and the conclusion is that the processed parts are qualified.

[0145] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength wear-resistant clutch driving gear production and processing technology, characterized by: The specific processing steps include: S1. Forge the gear blank according to the gear specifications to form the gear profile and control the allowance for subsequent machining; S2. Tempering the forged gear blank in a common heat treatment furnace or mesh belt furnace, and testing the tempered gear blank; S3. Turn the shape and inner hole of the modulated gear blank to meet the technical requirements of the product drawing; S4. performing gear hobbing on the turned gear blank and removing burrs generated during the gear hobbing process; S5. Shaving the gear after gear hobbing, leaving a margin for the increase of the gear normal line after nitriding; S6. The gear after shaving is nitrided in a liquid nitriding furnace; S7. Sandblasting the surface of the gear after nitriding to remove impurities on the gear surface; S8. Use ultrasonic waves to clean the dirt and dust on the surface of the gear, and then test the various data of the gear.

2. The high-strength wear-resistant clutch driving gear production and processing process according to claim 1 is characterized by: After the gear blank in step 1 is forged, first visually inspect the surface of the gear blank for obvious cracks, scratches, depressions and other defects. If qualified, use a measuring tool to check the geometric dimensions of the gear blank to ensure that the dimensions of the gear blank meet the requirements of the drawing.

3. The high-strength wear-resistant clutch driving gear production and processing process according to claim 1 is characterized in that: The modulation process of the tooth blank in step 2 is divided into quenching and high temperature tempering. The quenching process is to heat the tooth blank to 800°C-950°C, then keep it at this temperature for 30-60 minutes, and then quickly cool the tooth blank. The high temperature tempering process is to heat the quenched tooth blank to 500°C-700°C, then keep it at this temperature for 3-6 hours, and then slowly cool it to room temperature. The hardness of the tooth blank after modulation is HRC30-45, and the tensile strength is 94-145 kg / mm 2 .

4. The high-strength wear-resistant clutch driving gear production and processing process according to claim 1 is characterized by: The turning of the gear blank in step 3 includes rough turning and fine turning. After turning, the size of the gear blank is measured to ensure that the size of the gear blank after turning meets the requirements of the drawing.

5. The high-strength wear-resistant clutch driving gear production and processing process according to claim 1 is characterized in that: A processing allowance of 0.01-0.03 mm is reserved on one side of the tooth profile surface of the gear after the gear hobbing in the step 4, and the burrs of the gear are removed by a deburring machine.

6. The high-strength wear-resistant clutch driving gear production and processing process according to claim 1 is characterized by: During the gear shaving process in step 5, a 0.003-0.015 mm expansion and contraction allowance needs to be reserved.

7. The high-strength wear-resistant clutch driving gear production and processing process according to claim 1 is characterized by: The process of nitriding the gear in step 6 comprises the following steps: 1) Clean and remove all oil stains on the gear surface; 2) Preheat the gears in an electric furnace at 250℃-350℃ and keep warm for 20-40 minutes; 3) Immediately place the preheated gear into a 530℃-580℃ liquid nitriding furnace, keep warm for 100-200 minutes, then take the gear out and let it cool naturally.

8. The high-strength wear-resistant clutch driving gear production and processing process according to claim 7 is characterized in that: The process of cleaning and removing all oil stains on the gear surface includes the following specific cleaning steps: ①. Soak the gear in alcohol for 10-30 minutes; ② Use a soft brush to gently scrub the gear surface until all the oil stains on the gear surface are cleaned; ③. Wipe the gears dry with a clean cloth or paper towel, and then place them under hot air to dry quickly.

9. The high-strength wear-resistant clutch driving gear production and processing process according to claim 1 is characterized by: The parameters of the sand blasting treatment in step seven are: sand particle size is 100#, sand blasting pressure is 0.25MPa, and sand blasting time is 8 minutes.

10. The high-strength wear-resistant clutch driving gear production and processing technology according to claim 1 is characterized in that: The detection of various gear data in step eight includes the detection of the normal line variation, tooth direction tolerance, pitch limit deviation, base pitch limit deviation, tooth shape tolerance, surface hardness after nitriding, total nitriding layer depth and core hardness.

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