Metal founding – Process – With measuring – testing – inspecting – or condition determination
Patent
1981-07-02
1984-08-14
Lin, Kuang Y.
Metal founding
Process
With measuring, testing, inspecting, or condition determination
164467, B22D 2702
Patent
active
044651180
ABSTRACT:
A process and apparatus having improved efficiency for forming a semi-solid alloy slurry. A molten metal in a containing device is mixed electromagnetically by a moving, non-zero magnetic field provided over substantially all of a solidification zone within the containing device. The magnetic field causes the shearing of dendrites formed in the solidification zone at a desired shearing rate. The magnetic field is generated by a device supplied with current at a desired line frequency. By operating within a defined range of line frequencies, a desired shear rate for attaining a desired cast structure at reduced levels of power consumption and current can be achieved.
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Dantzig Jonathan A.
Tyler Derek E.
Holt Harold J.
International Telephone and Telegraph Corporation
Lin Kuang Y.
Raden James B.
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