Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product
Patent
1983-11-30
1985-12-03
Lechert, Jr., Stephen J.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Metal and nonmetal in final product
419 12, 419 32, 419 38, 419 57, 75123CB, 75123B, 75123D, 75123L, 75126A, 75126P, 75126K, 75126Q, 75130R, 751305, 75132, B22F 316
Patent
active
045565333
ABSTRACT:
A sintered ferrous alloy which is high in wear resistance and relatively weak in the tendency to abrade another metal material with which the sintered alloy makes rubbing contact. The sintered alloy is produced by compacting and sintering 100 parts by weight of a powder mixture of 5-35 parts by weight of a Fe-Cr-B-Si alloy powder, which contains 10-35% of Cr, 1.0-2.5% of B and 0.5-3.0% of Si, such an amount of a Cu-P alloy powder that the powder mixture contains 0.2-1.5% of P and 1.0 to 20.0% of Cu, and the balance of a cast iron powder. Preferably the cast iron powder contains 2.5-3.5% of C, 1.8-2.2% of Si and 0.6-1.0% of Mn. For example, the sintered alloy is suitable for rocker arm tips in automotive engines.
REFERENCES:
patent: 3977838 (1976-08-01), Hashimoto et al.
patent: 4243414 (1981-01-01), Takahashi et al.
patent: 4344795 (1982-08-01), Endo et al.
patent: 4491477 (1985-01-01), Suganuma et al.
patent: 4504312 (1985-03-01), Oaku et al.
Maki Yoshihiro
Oaku Takaaki
Shioda Masahiko
Suzuki Syunsuke
Lechert Jr. Stephen J.
Nissan Motor Co,. Ltd.
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