Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1990-05-07
1991-02-12
Seidel, Richard K.
Metal founding
Process
Shaping liquid metal against a forming surface
164113, 164133, 164316, 164318, B22D 1704
Patent
active
049916416
ABSTRACT:
An improved valve mechanism for casting metal alloys with low melting temperatures provides two valves in a single assembly inside an alloy tank. The valves being in the tank reduces the formation of oxides which can occur in air and tends to reduce leaks. The apparatus comprises a tank adapted to contain molten metal alloys, a cylinder in the tank having at its base a connection to an injection passageway which leads through the tank to a die located outside the tank. A piston reciprocates in the tank which allows molten metal alloy to be drawn into the cylinder and forced through the passageway to the die. A control system for the piston controls accurately the speed of the piston in the cylinder when the molten metal alloy is fed to the die.
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Kidd Thomas F.
Thompson Stephen A.
Batten, Jr. J. Reed
Electrovert Ltd.
Seidel Richard K.
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