Method of producing aluminum alloy castings and piston made of a

Details Method of producing aluminum alloy castings and piston made of a Method of producing aluminum alloy castings and piston made of a

1986-05-27

1990-10-30

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

164 98, B22D 1916

Patent

active

049662210

ABSTRACT:
Porous material of metal is held in a die and molten aluminum alloy is introduced into the die to surround the porous material. Thus, high-pressure squeeze casting is accomplished under an applied pressure of not lower than 400 Kg/cm.sup.2 to form an aluminum alloy casting stock with the porous material cast therein. The casting stock is heated to and maintained at 450.degree. to 550.degree. C. for 1 to 10 hours, and an intermetallic compound layer of aluminum and the metal of the porous material is thereby formed on the boundary between the porous material and the aluminum alloy.

REFERENCES:
patent: 2797460 (1957-07-01), Whitfield
patent: 3523766 (1970-08-01), Markus et al.
patent: 3853635 (1974-12-01), Demendl
patent: 4318438 (1982-03-01), Ban et al.
patent: 4334507 (1982-06-01), Kohnert et al.
patent: 4452865 (1984-06-01), Yamatsuta et al.
patent: 4492265 (1985-01-01), Donomoto et al.

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