DEMAGNETIZING METHOD FOR PRODUCT MOLDED WITH INJECTION MOLDING MACHINE FOR ANISOTROPIC RESIN MAGNET

摘要

PURPOSE:To constitute the above method so that demagnetization can be performed sufficiently by one time demagnetization process. CONSTITUTION:An alternating magnetic field which is constituted so that a positive and negative peak values each are reduced with the lapse of time and the positive and negative peak values are held constantly respectively by a fixed magnetic field holding time tm is added to a molded product of an anisotropic resin magnet.