Method of and apparatus for low-pressure casting of light metal

Details Method of and apparatus for low-pressure casting of light metal Method of and apparatus for low-pressure casting of light metal

1988-08-17

1989-10-24

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

1641221, 164138, 164306, B22D 1804

Patent

active

048755184

ABSTRACT:
A light metal alloy such as an aluminum alloy is cast into a casting such as an automobile engine cylinder head under low pressure. A fluid pressure is applied to the surface of a light metal alloy stored in a closed container to introduce the light metal alloy from the closed container through a transfer tube and a sprue into a mold cavity defined in a mold assembly. The introduced molten metal alloy is brought into contact with molds of the mold assembly which have different thermal conductivities, respectively. The time in which the molten metal alloy is solidified is controlled by the molds of different thermal conductivities. The molds may forcibly be cooled by a cooling medium passing therethrough or cooling blocks mounted thereon.

REFERENCES:
patent: 3874440 (1975-04-01), Voisin

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