Wear-resistant member for use in an internal combustion engine

Details Wear-resistant member for use in an internal combustion engine Wear-resistant member for use in an internal combustion engine

1980-02-20

1986-04-22

Wolfe, W. R.

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9051, 123 906, 123188AA, 75126K, F01L 302

Patent

active

045835020

ABSTRACT:
A wear-resistant member and method for producing the same which member may form a movable member in an internal combustion engine which is subjected to high pressure such as a rocker arm, tappet, cam, valve or valve seat. The member is formed as a combination of a ferrous sintered body and a ferrous base body having a common surface. The sintered body is formed from a compressed powder body disposed in contact with the ferrous base body. The powder body, in a preferred embodiment, consists of 0.5 to 7.0% by weight carbon, 0.1 to 5.0% phosphorus, the balance being iron, and having a porosity of 12 to 20% by volume at least 40% of which is pores having a pore size of not more than 300 .mu.. The combined powder body and ferrous base body are heated to a temperature higher than the liquid-phase temperature of the powder body but lower than the melting point of the ferrous body to sinter the powder body.

REFERENCES:
patent: 3301240 (1967-01-01), Peresada
patent: 3497347 (1970-02-01), Dautzenberg et al.
patent: 3683876 (1972-08-01), Lesher
patent: 3925065 (1975-12-01), Osawa et al.
patent: 4230491 (1980-10-01), Behnke
patent: 4243414 (1981-01-01), Takahashi et al.

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