SAMARIUM COBALT MAGNET AND METHOD FOR MANUFACTURING THE SAME

• Main Authors: LIU XIN, DONG YI, YUAN WENJIE, YUAN YI, FAN YUELIN, SU JIANYUN, CHEN YA, WU ZHIMIN, ZHANG BINGJUN, DIAO SHULIN, YUAN BO
• Format: Patent
• Language: English; Japanese
• Published: 06.08.2020
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CASTING; CHEMISTRY; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; INDUCTANCES; MAGNETS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

To provide a method for manufacturing a samarium cobalt magnet, which is relatively low in manufacturing cost and by which a positive residual magnetism temperature coefficient can be achieved.SOLUTION: A method for manufacturing a samarium cobalt magnet comprises the step of mixing alloy powder and zirconium powder of 0.1-0.35 wt% to a weight of the alloy powder to form a mixture. The alloy powder includes: 10.5-13.5 wt% of samarium; 12.5-15.5 wt% of gadolinium; 50-55 wt% of cobalt; 13-17 wt% of iron; 4-10 wt% of copper; and 2-7 wt% of zirconium.SELECTED DRAWING: None 【課題】製造コストが比較的に低く、正の残留磁気の温度係数が得られるサマリウムコバルト磁石の製造方法を提供する。【解決手段】サマリウムコバルト磁石の製造方法は、合金粉と合金粉重量に準じる0.1〜0.35wt％のジルコニウム粉を混合して混合物を形成するステップを含む。合金粉は、10.5〜13.5wt％サマリウム、12.5〜15.5wt％ガドリニウム、50〜55wt％コバルト、13〜17wt％鉄、4〜10wt％銅および2〜7wt％ジルコニウムからなる。【選択図】なし