Sintering method for making a high carbon ferrous sliding elemen

Details Sintering method for making a high carbon ferrous sliding elemen Sintering method for making a high carbon ferrous sliding elemen

1975-11-07

1977-08-16

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75221, 75200, 148126, B22F 300

Patent

active

040423859

ABSTRACT:
Sintering method which comprises two principal stages, which are a first stage wherein green compacts are sintered in a regular manner, and a second stage which immediately follows the first stage and wherein sintered compacts are held for a set time at a temperature which is elevated but is below sintering temperature and in carburizing gas, thereby diffusing required component into the compacts, for example carbon in the case of ferro-carbide compacts for use as sliding elements. Also according to the invention a sintering box may have formed therein holes of set size and distribution density thereby to permit efficient removal of lubricant if initially added to compacts.

REFERENCES:
patent: 2342799 (1944-02-01), Goetzel
patent: 2826805 (1958-03-01), Probst et al.
patent: 2827407 (1958-03-01), Carlson et al.
patent: 3891473 (1975-06-01), Latva

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