Process for forming metal parts with less than 1 percent carbon

Details Process for forming metal parts with less than 1 percent carbon Process for forming metal parts with less than 1 percent carbon

1978-08-08

1980-09-30

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75200, 264 63, B22F 300

Patent

active

042253454

ABSTRACT:
The disclosed process forms metal parts from a mixture containing a powdered metal, a plasticizer, and at least two binders. Some of these binder materials are selectively extractable from the mixture without sintering. After the mixture is shaped into the form of the desired part and prior to sintering, the plasticizer and the extractable binders are removed. This produces a part having both sufficient green strength and a relatively low binder content. On sintering, remaining binders decompose; and the resulting part has a carbon content of less than 1.0%.

REFERENCES:
patent: 3846126 (1974-11-01), Foley et al.
patent: 4000110 (1976-12-01), Saito et al.
patent: 4011291 (1977-03-01), Curry
patent: 4158689 (1979-06-01), Pett et al.

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