Powder metallurgy passenger car chain pulley and method for producing the same
A powder metallurgy and sprocket technology, applied in belts/chains/gears, mechanical equipment, portable lifting devices, etc., can solve the problems of affecting the service life of car sprockets, affecting service life, and high production costs, achieving easy installation, overall Good sex, light weight effect
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[0031] Example 1
[0032] As attached figure 1 , 2 , 3, 4, 5 produce powder metallurgy car sprockets, the production steps are as follows:
[0033] (1) Selection of ingredients and raw materials:
[0034] The sprocket body and teeth are made of powder metallurgical raw materials, and the weight percentage of each raw material is: copper powder accounts for 3%, nickel powder accounts for 2%, graphite powder accounts for 0.6%, molybdenum powder accounts for 1.5%, and iron powder accounts for 92.9%; The oil ring 7 is made of GCr15 steel; the sealing ring 8 is made of high-quality carbon steel;
[0035] (2) Mixed powder:
[0036] The copper powder, nickel powder, graphite powder, molybdenum powder, and iron powder weighed according to the above weight ratio are uniformly mixed by a double cone mixer, and the powder mixing time is 60 minutes, which is used as the powder metallurgical mixing of the pressed gear body and teeth Powder
[0037] (3) Suppression:
[0038] Put the powder met...
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