Controlling the position of liquid metal in a vessel

Details Controlling the position of liquid metal in a vessel Controlling the position of liquid metal in a vessel

1990-01-08

1991-06-11

Lin, Kuang Y.

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164155, B22D 1732

Patent

active

050224581

ABSTRACT:
A method of controlling the position of liquid metal in a mould cavity comprising the steps of feeding molten metal to the mould cavity, sensing the position of a surface of the metal in the cavity by a managing means responsive to electrical capacitance between sadi surface and a signal plate disposed externally of the liquid metal and adjacent to said surface, controlling the rate at which the molten metal is fed into the cavity in accordance with a control signal produced by said managing means so as to achieve a predetermined filling regime (as herein defined) governed by the position of said surface in the cavity.

REFERENCES:
patent: 2509079 (1950-05-01), Trewin et al.
patent: 2937789 (1960-05-01), Tama
patent: 3961662 (1976-06-01), Balevski et al.

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