均一充填法の開発-エアレート充填- Development of Uniform Powder Filling Method -Aeration Powder Filling-

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Dimensional tolerance of complex P/M parts is improved by uniformly filling powders in a die cavity. In our previous study, the powder behavior in filling the die cavity was investigated using a visual apparatus. It was clarified that the particle size segregation occurred in filling with low flowability of powders. In order to improve the flowability of powders in a feed shoe, an aeration powder filling method has been developed by blowing a small amount of nitrogen gas into the feed shoe. The effect of aeration powder filling was confirmed using the visual apparatus. The decreasing of particle size segregation and the shortening of the filling time by improving the flowability of powders were obtained even in the case of thin die cavity filling, compared with the conventional gravity filling.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 45(5), 412-416, 1998-05-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002015567
  • 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
    4481794
  • 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  CJP引用  NDL  J-STAGE 
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