Scroll made of aluminum alloy

Details Scroll made of aluminum alloy Scroll made of aluminum alloy

1988-08-02

1990-03-13

Dean, R.

Metal treatment

Stock

Aluminum base

148 2, 148 115A, 148438, 148439, 148440, C22C 2102

Patent

active

049080776

ABSTRACT:
Forged compressor scrolls are made of an aluminum-silicon alloy consisting essentially of 8.5 to 10.5% silicon and not more than 0.2% antimony wherein the silicon is present as eutectic particles having an average particle diameter in the range of 2 to 8 .mu.m, the particles being uniformly dispersed with a degree of dispersion in the range of 10,000 to 30,000 particles/mm.sup.2. Such scrolls are free of internal defects and have reduced susceptibility to seizing and cracking combined with high abrasion resistance.

REFERENCES:
patent: 4715903 (1987-12-01), Asten et al.

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