異方性ラジアルリングの焼結割れ挙動 Cracking Behavior of Anisotropic Radially Oriented Rings in Nd-Fe-B Sintered Magnets

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著者

    • 山本 憲司 YAMAMOTO Kenji
    • 住友金属工業(株)総合技術研究所 Corporate Research and Developement Laboratories, Sumitomo Metal Industries Ltd.
    • 高橋 渉 TAKAHASHI Wataru
    • 住友金属工業(株)未来技術研究所 Advanced Technology Research Laboratories, Sumitomo Metal Industries Ltd.

抄録

Radially oriented Nd-Fe-B ring magnet can be used as rotor magnets of AC Servomotors and outer magnet of small DC motors. In the manufacturing process of this ring magnet, cracking of the axial direction in the internal surface of the ring is found to take place with the large probability after sintering and Argon-cooling process. Though it is estimated that this cracking is caused by the circumferential stress of the internal surface which exceeds the mechanical strength of the Nd-Fe-B magnet material, it is very important to understand process conditions which cause the internal cracking quantitatively because of the establishment of the manufacturing process of the ring. Then, after the mechanical properties and the various thermal constants of Nd-Fe-B material were measured, cracking behavior of this rings has been investigated using a FEM method.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 43(7), 940-945, 1996-07-15

    Japan Society of Powder and Powder Metallurgy

参考文献:  3件中 1-3件 を表示

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    Science of Ceramics 7, 29, 1983

    被引用文献1件

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    清水

    日立金属技報 6, 33, 1990

    被引用文献1件

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    ANDREEV A. V. et al

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    被引用文献1件

各種コード

  • NII論文ID(NAID)
    10002012729
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    4004698
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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