RARE-EARTH INTERMETALLIC-COMPOUND PERMANENT MAGNET AND ITS MANUFACTURE

摘要

PURPOSE: To mold a magnet powder with good efficiency and continuously, to improve the oxidation-resistant property of a crushed fine powder and to stably supply the fine powder even in the air. ;CONSTITUTION: In the manufacturing method of a rare-earth intermetallic- compound permanent magnet, a hydrocarbon-based lubricant and an oxidation inhibitor are added to, and mixed with, a rare-earth intermetallic-compound permanent magnet coarse powder, this mixture is crushed fine by a pneumatic crushing method, and a fine crushed mixture is molded and sintered. In the manufacturing method of the rare-earth intermetallic-compound permanent magnet, the oxidation inhibitor is a silicone-based oil.;COPYRIGHT: (C)1995,JPO