Process for producing sintered hard metals and an apparatus ther

Details Process for producing sintered hard metals and an apparatus ther Process for producing sintered hard metals and an apparatus ther

1978-07-17

1980-09-30

Schafer, Richard E.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75204, 75221, 75224, 148126, B22F 300, C22C 105

Patent

active

042253446

ABSTRACT:
This invention relates to a process for producing sintered hard metals which comprises sintering a compact for the sintered hard metals or sintering a formed body obtained from the compact through a presintering treatment and, if necessary, a machining treatment, a part or all of the heating steps and cooling steps being carried out in an atmospheres of hydrogen and an atmosphere of carbon monoxide.

REFERENCES:
patent: 2244052 (1941-06-01), Comstock
patent: 2829427 (1958-04-01), Tacuorian et al.
patent: 3306741 (1967-02-01), Lallemant
patent: 3752655 (1973-08-01), Ramquist

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