アルミニウム合金ダイカストの鋳巣生成に及ぼす鋳造条件の影響

書誌事項

タイトル別名
  • Effect of Die Casting Conditions on Formation of Porosity in Aluminum Alloy Die Castings
  • アルミニウム ゴウキン ダイカスト ノ チュウスセイセイ ニ オヨボス チ

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説明

  It was revealed by mass spectrograph that gas defects were caused by nitrogen and hydrogen in aluminum alloy die castings. The amount of nitrogen included by molten metal was varied by some mechanical factors of die casting conditions. When the plunger speed was turned to fast after passing of molten metal through the gate and entering into the die cavity, the amount of nitrogen and the gas porosity in the product portions were significantly decreased. On the other hand, the amount of hydrogen was influenced by some chemical factors of die casting conditions. The use of much moldwash increased the amount of hydrogen and the gas porosity, but the hydrogen absorption and the porosity formation were prevented after blowing of the excessive lubricant.

収録刊行物

  • 鋳物

    鋳物 61 (12), 926-931, 1989

    公益社団法人 日本鋳造工学会

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