アルミニウム合金ダイカスト鋳物に現れる破断チル層

岩堀 弘昭; 戸沢 勝利; 山本 善章; 中村 元志

doi:10.2464/jilm.34.389

岩堀弘昭, 戸沢勝利, 山本善章, 中村元志

著者情報

ジャーナルフリー

1984 年 34 巻 7 号 p. 389-394

DOI https://doi.org/10.2464/jilm.34.389

詳細

発行日: 1984/07/30 受付日: 1983/12/05 J-STAGE公開日: 2008/07/23 受理日: - 早期公開日: - 改訂日: -
訂正情報
訂正日: 2008/07/23 訂正理由: - 訂正箇所: 論文抄録訂正内容: Wrong : The origin of abnormal structures and layers formed in practical ADC 12 alloy die castings 1 to 22kg in weight is studied by measuring molten metal temperatures in a shot sleeve of die casting machines. The molten metal poured into the shot sleeve rapidly cools down to the eutectic temperature and is injected into a die cavity in the solid-liquid mixture state. When the plunger tip runs through the shot sleeve, solidified layers on the inner wall of the sleeve are peeled off and mixed into the flowing liquid. The solid layers are disintegrated and conveyed into the die cavity to form scattered structures in die castings. The primary aluminum phase already crystallized in the shot sleeve grows into coarse dendrites in die castings.
Right : The origin of abnormal structures and layers formed in practical ADC12 alloy die castings 1 to 22kg in weight is studied by measuring molten metal temperatures in a shot sleeve of die casting machines. The molten metal poured into the shot sleeve rapidly cools down to the eutectic temperature and is injected into a die cavity in the solid-liquid mixture state. When the plunger tip runs through the shot sleeve, solidified layers on the inner wall of the sleeve are peeled off and mixed into the flowing liquid. The solid layers are disintegrated and conveyed into the die cavity to form scattered structures in die castings. The primary aluminum phase already crystallized in the shot sleeve grows into coarse dendrites in die castings.

訂正日: 2008/07/23 訂正理由: - 訂正箇所: PDFファイル訂正内容: -

抄録

The origin of abnormal structures and layers formed in practical ADC12 alloy die castings 1 to 22kg in weight is studied by measuring molten metal temperatures in a shot sleeve of die casting machines. The molten metal poured into the shot sleeve rapidly cools down to the eutectic temperature and is injected into a die cavity in the solid-liquid mixture state. When the plunger tip runs through the shot sleeve, solidified layers on the inner wall of the sleeve are peeled off and mixed into the flowing liquid. The solid layers are disintegrated and conveyed into the die cavity to form scattered structures in die castings. The primary aluminum phase already crystallized in the shot sleeve grows into coarse dendrites in die castings.

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