Process for obtaining novel blanks for extrusion by impact

Details Process for obtaining novel blanks for extrusion by impact Process for obtaining novel blanks for extrusion by impact

1977-03-16

1978-09-12

Dean, R.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75143, 148 32, 164120, C22C 106

Patent

active

041134737

ABSTRACT:
The invention relates to the manufacture of aluminum alloy blanks containing a large quantity of silicon and designed for extrusion by impact.
It consists in applying the method of casting with oriented cooling in the main patent to a hypereutectic silicon aluminum alloy which has previously been refined with phosphorus.
An even distribution of the remarkably fine primary silicon crystals is obtained in this way.
The invention is particularly applicable to the manufacture of linings for heat engines made of aluminum alloys.

REFERENCES:
patent: 1940922 (1933-12-01), Sterner-Rainer

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