Automobile clutch gear with sintered copper, aluminum and steel based on powder metallurgy technology and manufacturing method of automobile clutch gear

A technology of powder metallurgy and sintered copper, which is applied in the direction of mutually meshing clutches, clutches, and mechanically driven clutches. High-volume rapid production and supply requirements, simplified production process, and good wear resistance

Active Publication Date: 2012-10-31
WUHU HEFENG CLUTCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing automobile clutch gears are mainly made of 45 steel, 40Cr, 40CrNi and other materials, and the hardness of the tooth surface is HB>350. Fire → honing or grinding agent running-in, EDM running-in, ...

Method used

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  • Automobile clutch gear with sintered copper, aluminum and steel based on powder metallurgy technology and manufacturing method of automobile clutch gear

Examples

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Embodiment 1

[0012] Example 1: An automobile clutch gear based on powder metallurgy technology sintered copper-aluminum steel, with electrolytic iron powder as the matrix, and the weight percentages of the remaining components are: scrap steel powder 25, copper powder 1.5, manganese sulfide powder 1.4, waste aluminum powder 2.5, molybdenum disulfide 0.4, chromium powder 1.3, graphite 1, ake wax less than 45 microns 1.4, stearic acid less than 45 microns 1.7. Add up to 100%.

[0013] Production involves the following steps:

[0014] (1) Weigh each raw material according to the weight of the constituent raw materials, crush it to 300-400 mesh, mix it evenly, then put it into a mold and place it on a press with a pressure of 7.5T / CM 2 Under the condition of pressing and molding;

[0015] (2) Place the pressed compact in a mesh belt furnace for sequential sintering at a temperature of 600-650°C for 30-40 minutes; at a temperature of 800-850°C for 60-90 minutes; the temperature is controlled ...

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Abstract

The invention discloses an automobile transmission gear with sintered copper, aluminum and steel based on a powder metallurgy technology and a manufacturing method of the automobile transmission gear. The automobile transmission gear takes electrolytic iron powder as a base material and also comprises the following components in weight percentage: 20%-30% of waste steel powder, 1.2%-1.8% of copper powder, 1.2%-1.5% of manganese sulfide powder, 2%-3% of waste aluminum powder, 0.2%-0.6% of molybdenum disulfide, 1.2%-1.5% of chromium powder, 0.8%-1.2% of graphite, 1.2%-1.6% of micrometer acrawax with the size being less than 45 microns and 1.5%-1.8% of stearic acid with the size being less than 45 microns. According to the invention, the waste steel powder, the waste aluminum powder and alloy materials thereof are combined, a sintering process is adopted, and the characteristics of stable performance and few uncontrollable impurity elements of the smelted waste steel powder, thus being good for improving the performance stability of a powder metallurgy product; secondly, the clutch gear has the advantages of high equal division precision, good wear resistance and excellent gear face hardness and pressure resistance, and can meet factory requirements; and meanwhile, a production process is greatly simplified and can meet the requirements on large-bath rapid production and material supply.

Description

technical field [0001] The invention relates to the production of auto parts by powder metallurgy, in particular to an automobile clutch gear based on powder metallurgy technology for sintering copper-aluminum steel and a production method thereof. Background technique [0002] The existing automobile clutch gears are mainly made of 45 steel, 40Cr, 40CrNi and other materials, and the hardness of the tooth surface is HB>350. Fire → honing or grinding agent running-in, EDM running-in, etc., the gears produced have poor wear resistance, poor surface dimensional accuracy of finished products, and complicated processes, which are difficult to meet the needs of large-volume rapid production. Contents of the invention [0003] The object of the present invention is to provide an automobile clutch gear based on powder metallurgy technology sintered copper-aluminum steel and a manufacturing method thereof. The clutch gear produced by the invention has high equalization precisio...

Claims

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Application Information

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IPC IPC(8): B22F1/00B22F3/16B22F5/08F16D11/00F16H55/17F16H55/06
Inventor 许道生
Owner WUHU HEFENG CLUTCH
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