シナジー磁石　超音波粉末成形の基本特性

• 橋正 好行

  住友金属工業(株)未来技術研究所

• 大北 雅一

  住友金属工業(株)未来技術研究所

• 三野 修嗣

  住友特殊金属(株)開発本部

• 石垣 尚幸

  住友特殊金属(株)開発本部

書誌事項

タイトル別名

• The Fundamental Characteristics of Forming Bonded Magnet Powder Using Ultrasonic Vibration.
• チョウオンパ フンマツ セイケイ ノ キホン トクセイ

抄録

The compaction molding attached ultrasonic vibration, which was applied longtitudinaly through upper punch was studied for the bonded magnet composed of an anisotropic Nd-Fe-B powder and an epoxy resin binder in order to melt binder without heating of mold. In this work, the influence of the amplitude and duration of ultrasonic vibration on the compound temperature in the dies was investigated. The results show that the minimum time of ultrasonic vibration required for binder melting can be shortened by increasing the amplitude, then bonded magnets can be compacted efficiently. The bonded magnets made by this method have a powder volume fraction of 77.7% at compacting pressure of 550MPa. This value of compacting pressure is lower than that of warm compaction molding required to obtain same volume fraction.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 44 (9), 807-811, 1997

  一般社団法人 粉体粉末冶金協会

キーワード

• permanent magnet
• anisotropic bonded magnet
• Nd-Fe-B HDDR powder
• ultrasonic vibration press

詳細情報

• CRID: 1390282681284431488
• NII論文ID: 10002014510
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.44.807
• COI: 1:CAS:528:DyaK2sXmsleju74%3D
• ISSN: 18809014
• ISSN: 05328799
• ISSN: http://id.crossref.org/issn/05328799
• NDL書誌ID: 4304478
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4304478
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可