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Production technique of abrasion-resistant gear
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A production process and gear technology, applied in the production process of wear-resistant gears, can solve the problems of poor lubrication conditions, driving operation, starting jitter, gear wear, etc., to increase structural strength and corrosion resistance, reduce quality, and increase service life. Effect
Inactive Publication Date: 2017-05-31
SUZHOU CHENHENG WEAVING
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Problems solved by technology
In addition to the normal wear and tear of the gears, the quality of the lubricating oil, poor lubrication conditions, improper driving operation, and improper gnawing positions of the gear assemblies during maintenance will all cause gear impacts, poor gear teeth gnawing, and starting vibrations. etc. will accelerate the wear and damage of the gear
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Embodiment 1
[0048] The production process of the wear-resistant gear of the present embodiment includes the following steps:
[0053] b. Put the raw materials into the melting furnace according to the mass percentage of each component in the predetermined wear-resistant gear, raise the temperature in the melting furnace to 1500-1530 degrees Celsius, and the raw materials are smelted to form an alloy solution;
[0078] The wear-resistant gear of this embodiment is basically the same as that of Embodiment 1, except that its mass percentage composition is: C: 0.15%, Cr: 0.03%, Mn: 0.45%, Zn: 1.28%, Cu: 1.35%, Ag : 0.86%, Au: 0.49%, Pt: 0.25%, Ni: 1.56%, W: 1.35%, Mo: 0.03%, Ce: 0.03%, Eu: 0.04%, Lu: 0.08%, Ti: 1.93%, AlN : 0.42%, S≤0.003%, P≤0.003%, talcum powder: 0.36%, magnesiumoxide: 0.25%, tungstencarbide: 0.16%, and the balance is Fe.
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Abstract
The invention relates to a production technique of an abrasion-resistant gear. The production technique comprises the steps that (1) raw materials are smelted; (2) a wax mold is prepared; (3) a shell mold sand mold is manufactured on the wax mold prepared in the step (2), and a shell mold is obtained through steam dewaxing and roasted; (4) the roasted shell mold is put into a sand box prepared according to the molding technique, and the sand mold is formed; (5) pouring is conducted; (6) a casting formed through pouring is subjected to heat treatment; (7) a polyethylene glycol polyelectrolyteaqueous solution is dipped and evenly smeared on the surface of the abrasion-resistant gear after heat treatment through dip-coating, and the abrasion-resistant gear coated with polyethylene glycol polyelectrolyte is obtained; (8) electroplating is conducted; and (9) the outer surface of a zinc-nickelalloycoating of the abrasion-resistant gear is covered with a bone china protecting layer. According to the production technique of the abrasion-resistant gear, due to the fact that raw materials comprise Zn, Ni and W, the heat resistance and corrosion resistance of the gear are improved.
Description
technical field [0001] The invention relates to a production process of a wear-resistant gear, belonging to the technical field of auto parts. Background technique [0002] The gearbox mainly refers to the gearbox of the car. It is divided into manual and automatic. The manual transmission is mainly composed of gears and shafts, and the variable speed and torque are generated through different gear combinations; while the automatic transmission AT is composed of a hydraulic torque converter, a planetary gear and a hydraulic controlsystem. Variable speed and torque are achieved through hydraulic transmission and gear combination. However, whether it is a manual transmission or an automatic transmission, transmission gears are required. [0003] Transmission gears often work at high speeds, high loads, and constant alternation of speeds and loads. In addition to the normal wear and tear of the gears, the quality of the lubricating oil, poor lubrication conditions, improper...
Claims
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Application Information
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