Method for manufacturing driving gear of motorcycle clutch
The technology of a driving gear and a manufacturing method, which is applied in the field of manufacturing the driving gear of motorcycle clutches, can solve the problems that the strength and fatigue performance cannot meet the high-speed rotation of the driving gear, and achieve the effects of high strength, eliminating cracks, and simple manufacturing process
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Embodiment 1
[0032] ① Prepare the raw material, that is, the mixed powder of iron alloy and carbon. The proportion is: iron alloy (1.5% chromium, 0.2% molybdenum, 98.3% iron) is 99.45%; carbon is 0.25%, and then add 0.3% Organosilane wax lubricants;
[0033] ② Press the above mixed powder on the press to make the density greater than 7.45g / cm 3 Active gear parts; pressing can be formed by warm pressing or mold heating.
[0034] ③ Sintering, the driving gear parts are sintered at a temperature of 1280° C., and the sintering time is 30 minutes. The sintering is carried out in a vacuum sintering furnace or in a sintering furnace based on nitrogen and the proportion of hydrogen is 10 vol %;
[0035] ④Heat treatment, according to the chemical composition requirements of the sintered parts, determine the heat treatment process, the heat treatment carbon potential is 0.8%, the quenching temperature is 830 ° C, heat preservation for 30 minutes, the tempering temperature is 200 ° C, heat preservat...
Embodiment 2
[0039] ① Prepare the raw materials, that is, the mixed powder of iron, chromium, carbon and nickel. The ratio is: iron alloy (1.5% chromium, 0.2% molybdenum, 98.3% iron) is 97.95%, carbon is 0.25%, nickel is 1.5% %, then add a content of 0.3% organosilane wax lubricant;
[0040] ② Press the above mixed powder on the press to make the density greater than 7.4g / cm 3 Active gear parts; pressing can be formed by warm pressing or mold heating.
[0041] ③Sintering, the driving gear parts are sintered at a temperature of 1300°C, the sintering time is 30 minutes, and the sintering is carried out in a vacuum sintering furnace or in a sintering furnace based on nitrogen and the proportion of hydrogen is 75vol%;
[0042] ④Heat treatment: Determine the heat treatment process according to the chemical composition requirements of the sintered parts. The heat treatment quenching temperature is 900°C, the heat treatment carbon potential is 0.8%, the heat preservation is 35 minutes, the tempe...
Embodiment 3
[0045] ① Prepare the raw materials, that is, the mixed powder of iron, chromium, molybdenum, nickel, carbon and copper. The ratio is: 85.1% iron: 0.8% carbon, 5.0% chromium, 1.5% molybdenum, and 4% nickel %, the copper content is 3%, and then adding a content of 0.6% ethylene bis-stearamide (Ethylene bis-stearamide, EBS) type lubricant;
[0046] ②Compress the above mixed powder on a press to form a drive gear part with a density greater than 7.3g / cm3; the pressing can be formed by warm pressing or female mold heating.
[0047] ③ Sintering, the driving gear part is sintered at a temperature of 1350° C., and the sintering time is 10 minutes. The sintering is carried out in a vacuum sintering furnace or in a sintering furnace based on nitrogen and the proportion of hydrogen is 15vol%;
[0048] ④Heat treatment: Determine the heat treatment process according to the chemical composition requirements of the sintered parts. The heat treatment quenching temperature is 900°C, hold for 4...
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