Manufacture of powder cores for electromagnetic apparatus

Details Manufacture of powder cores for electromagnetic apparatus Manufacture of powder cores for electromagnetic apparatus

B - Operations, Transporting

22

F

75/166

B22F 3/00 (2006.01) H01F 1/153 (2006.01)

Patent

CA 1232158

ABSTRACT MANUFACTURE OF POWDER CORES FOR ELECTROMAGNETIC APPARATUS Ferromagnetic glassy metal powder is compacted with static pressure of about 69 to 690 MPa at a temperature in the vicinity of the glass transition temperature and below the crystallization temperature thereof to form a consolidated, magnetic glassy metal alloy body. The resulting compacts can be annealed to enhance ferromagnetic properties. Consolidated bodies exhibit low core loss and permeabilities which remain constant over a wide frequency range.

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