Method of manufacturing hardwearing aluminum alloy part

Details Method of manufacturing hardwearing aluminum alloy part Method of manufacturing hardwearing aluminum alloy part

Filed on

1990-05-02

Date issued

1990-12-11

Examiner

Lechert, Jr., Stephen J.

Patent Class

Powder metallurgy processes

SubClass

Powder metallurgy processes with heating or sintering

SubSubClass

Powder pretreatment

Other Related Categories

148115A, 148 127A, 148437, 419 62, 419 66, G22F 100

Type

Patent

Status

active

Patent number

049769170

Description

ABSTRACT:
Quench-solidifed Al-Si alloy powder which contains more than 12 wt % Si is preformed, and the preforming is compression-molded into an aluminum alloy part. The aluminum alloy part is repeatedly subjected to a heating-and-cooling cycle of heating the aluminum alloy part to a temperature between 440.degree. C. and 500.degree. C. and cooling it to a temperature not higher than 380.degree. C.

REFERENCES:
patent: 4711823 (1987-12-01), Shiina
patent: 4734130 (1988-03-01), Adam et al.
patent: 4917739 (1990-04-01), Adam et al.

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