FERRITE MAGNET POWDER, METHOD FOR MANUFACTURING FERRITE MAGNET, AND METHOD OF FORMING HEXAGONAL SYSTEM W TYPE FERRITE PHASE

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a ferrite magnet which can improve coercive force of a hexagonal system W type ferrite magnet.;SOLUTION: A first temporary baking process wherein material powder containing A (where A is at least one kind of element selected out of Sr, Ba and Pb) and Fe is held at 1,220-1,320C for a predetermined time, a pulverization process which pulverizes first temporarily baked member obtained by the first temporary baking process, and a second temporary baking process is installed wherein pulverized powder obtained by the pulverization process is held in a temperature range of 1,220-1,320C for a predetermined time.;COPYRIGHT: (C)2005,JPO&NCIPI