Patent ID: 7138018
Filing Date: 2006-11-21
Classification: H01F

Abstract:
1. A method for manufacturing an anisotropic magnet powder characterized in that the method comprises: a high-temperature hydrogenation process of holding an RFeB-based alloy containing a rare earth element (hereinafter referred to as “R”), boron (B) and iron (Fe) as main ingredients in a treating atmosphere under a first treating pressure (hereinafter referred to as “P a structure stabilization process of holding said RFeB-based alloy after said high-temperature hydrogenation process in a treating atmosphere under a second treating pressure (hereinafter referred to as “P a controlled evacuation process of holding said RFeB-based alloy after said structure stabilization process in a treating atmosphere and carrying out dehydrogenation under a third treating pressure (hereinafter referred to as “P a forced evacuation process of removing residual hydrogen (H) from said RFeB-based alloy after said controlled evacuation process.