MANUFACTURE OF POWDER CORES FOR ELECTROMAGNETIC APPARATUS

摘要

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.