MT磁石の製造における熱処理の研究

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書誌事項

タイトル別名
  • Industrial Research on the Heat Treatment of MT Permanent Magnet
  • MT ジシャク ノ セイゾウ ニ オケル ネツ ショリ ノ ケンキュウ

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抄録

The results of fundamental researches on MT magnet (C 2.0%, Al 8.15% and Fe bal.) were already reported. In this report, the most appropriate condition for heat treatment was investigated in the course of industrialization for commercial production. The optimum temperature of quenching for magnetic properties and yielding rate of heat treatment is between 1210 and 1250°. Coating with charcoal and cementing materials is effective in preventing decarburization at requenching. The soundness of casting as well as their size and alloying elements constitute an important factor in relation with hardening cracks. With interrupted quenching, hardening cracks are smaller than in the case of the usual quenching process, but derogation of magnetic properties is more remarkable. MT magnet steel reduces its hardness so much as to become machinable by means of annealing at 800°C.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 24 (3), 135-138, 1960

    公益社団法人 日本金属学会

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