Method of making an essentially void-free, cast silicon and alum

Details Method of making an essentially void-free, cast silicon and alum Method of making an essentially void-free, cast silicon and alum

1990-11-21

1992-03-10

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

1641221, B22D 2306, B22D 2704

Patent

active

050942883

ABSTRACT:
A method of making an essentially void-free, cast silicon and aluminum product wherein silicon and aluminum components in solid form are placed in a receptacle, heated to completely melt the components and thoroughly and uniformly disperse the aluminum component within the silicon component, and cooling the mixture in a non-uniform manner whereby solidification of the mixture gradually progresses from one extremity of the mixture to another extremity thereof. The aluminum component does not exceed about 6% by weight of the total weight of the components in the receptacle. During solidification of the mixture, gases are vented therefrom through that portion of the mixture which is in a molten state.

REFERENCES:
patent: 1144034 (1915-06-01), Giolitti
patent: 1812172 (1931-06-01), Rohn
patent: 4193974 (1980-03-01), Kotfval

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