Title: Rare earth alloy
Application Number: 91101851 Application Date: 1986.03.04
Publication Number: 1054502 Publication Date: 1991.09.11
Approval Pub. Date: Granted Pub. Date: 1993.10.13
International Classifi-cation: H01F1/053
Applicant(s) Name: Sumitomo Special Metals Co., Ltd. Address:
Inventor(s) Name:
Attorney & Agent: LU XINHUA
Abstract:
     This invention relates to a rare-earth alloy used for the production of permanently magnetic steel, which contains such materials (atomic) as R1 (15-65%), Fe (35-83%) and B (0-15%), Where R1 is at least one of heavy rare-earth elements: Gd, Tb, Dy, Ho, Er, Tm and Yb. Its technological processes include such steps as reduction of the mixture of rare-earth oxide, Fe and B-containing matter with Ca, reduced matter being in contact with water, and treating the pasty product with water. This alloy may be used to produce high-performance Fe-B-R based magnetic steel with low cost, where R1 represents R (La series and/or Y).
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