Process and apparatus having improved efficiency for...

Details Process and apparatus having improved efficiency for... Process and apparatus having improved efficiency for...

B - Operations, Transporting

22

D

39/108, 53/344

B22D 27/02 (2006.01) C22C 1/00 (2006.01)

Patent

CA 1195847

ABSTRACT OF THE DISCLOSURE 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 sub- stantially 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.

406417

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