Development of Uniform Powder Filling Method. Aeration Powder Filling.

• Kondoh Mikio

  Toyota Central Research & Development Laboratories Inc.

• Takemoto Shigehide

  Toyota Motor Corporation

• Urata Isamu

  Toyota Motor Corporation

Bibliographic Information

Other Title

• 自動車焼結部品の高機能化　　均一充填法の開発　　エアレート充填
• キンイツ ジュウテンホウ ノ カイハツ エアレート ジュウテン
• Aeration Powder Filling
• エアレート充填

Abstract

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.

Journal

• Journal of the Japan Society of Powder and Powder Metallurgy

  Journal of the Japan Society of Powder and Powder Metallurgy 45 (5), 412-416, 1998

  Japan Society of Powder and Powder Metallurgy

Keywords

• aeration powder filling
• gravity filling
• particle size segregation
• flowability

Details

• CRID: 1390282681285214208
• NII Article ID: 10002015567
• NII Book ID: AN00222724
• DOI: 10.2497/jjspm.45.412
• COI: 1:CAS:528:DyaK1cXjvVaiurg%3D
• ISSN: 18809014
• ISSN: 05328799
• ISSN: http://id.crossref.org/issn/05328799
• NDL BIB ID: 4481794
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4481794
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed