Hard-particle dispersion type sintered-alloy for valve seat use

Details Hard-particle dispersion type sintered-alloy for valve seat use Hard-particle dispersion type sintered-alloy for valve seat use

1980-06-04

1982-06-01

Bell, Mark

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75246, B22F 300

Patent

active

043326161

ABSTRACT:
A valve-seat material ideal for valve seats for vehicle-engine exhaust valves with no cobalt contained therein, superior in general use, has superior wear-resistance in high-temperature oxidizing atmosphere, and can be used independently of types of fuel to be used in the non-lead gasoline, lead-contained gasoline, L.P.G. or the like. The recession amount of the valve is extremely decreased and the wear resistance is remarkably improved.

REFERENCES:
patent: 3806325 (1974-04-01), Niimi et al.
patent: 4177324 (1979-12-01), Brown et al.
patent: 4274875 (1981-06-01), Cadle et al.

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