Dual-layer sintered valve seat ring

Details Dual-layer sintered valve seat ring Dual-layer sintered valve seat ring

1983-03-08

1984-01-10

Chambers, A. Michael

Valves and valve actuation

Valve

Materials

251359, 123188S, 291571A, F01L 302

Patent

active

044249535

ABSTRACT:
The present invention relates to a dual-layer sintered valve seat ring having high stiffness and strength. The features of such ring are: fusion infiltration of Cu into the pores of a ferrous sintered body; hard alloy particles dispersed in the matrix of the valve seat body; the composition of the base and the ferrous sintered body; high density; and, diffusion of an alloying element of the hard particles around them and into the matrix.

REFERENCES:
patent: 2101970 (1937-12-01), Wissler
patent: 2296460 (1942-09-01), McDonald
patent: 2753858 (1956-07-01), Honeyman et al.
patent: 2753859 (1956-07-01), Bartlett
patent: 3028850 (1962-04-01), Gleeson
patent: 3428035 (1969-02-01), Stefon et al.
patent: 4346684 (1982-08-01), Vossieck

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