Press-molding process for preparing a powder compact

Details Press-molding process for preparing a powder compact Press-molding process for preparing a powder compact

1982-06-24

1985-04-02

Padgett, Ben R.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

419 65, 419 66, 29596, B22F 100

Patent

active

045085676

ABSTRACT:
A flux-path forming member of a motor is prepared from a mixture mass by evenly mixing up to 4% of a thermosetting resin binder and molybdenum disulfide with at least 96% of a metal powder, fibrous metal, or a combination thereof; a second step of compacting in a mold under pressure the mixture mass into a desired shape; and a third step of heating, concurrently with or subsequently to the second step, the mixture mass to an elevated temperature to cure the binder portion thereof. The compact prepared by the above process is also disclosed. The content of the thermosetting resin at least 0.2 percent by weight, and the content of the molybdenum disulfide is at least 0.1 percent by weight. The curing operation is conducted at a temperature not higher than 300.degree. C.

REFERENCES:
patent: 3463047 (1969-08-01), Germershausen
patent: 3732617 (1973-05-01), Rowe et al.
patent: 4104176 (1978-08-01), Bidler
patent: 4242398 (1980-12-01), Segawa et al.
patent: 4246316 (1981-01-01), Aonuma et al.
Hausner, Handbook of Powder Metallurgy, Chemical Publishing Co., N.Y. (1973), p. 132, TN695,H36h.
Condensed Chemical Dictionary Van Nostrand, N.Y. 1977, pp. 86 and 856, QD5C5.

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