Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 11    No. 3    June 2001

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Relationship between solid fraction and
distribution of Pb in Al-Pb ingot
ZHANG Peng(张  鹏)1, DU Yun-hui(杜云慧)2,
ZENG Da-ben(曾大本)1, REN Xue-ping(任学平)3,
CUI Jian-zhong(崔建忠)2, BA L-min(巴立民)

1. Department of Mechanical Engineering,
Tsinghua University, Beijing 100084, P.R.China;
2.Metal Forming Department, Northeastern University,
Shenyang 110006, P.R.China;
3.Department of Metal Forming,
University of Science and Technology Beijing,
Beijing 100083, P.R.China;
4.Anshan Automobile Fittings Factory,
Anshan 114014, P.R.China

Abstract: The influence of solid fraction of Al-28Pb alloy mushy on distribution of Pb in Al-Pb ingot was studied. The special electromagnetic stirring apparatus was used to prepare Al-28Pb alloy mushy and the relationship between solid fraction and stirring temperature was gotten. The results show that when solid fraction of Al-28Pb alloy mushy is less than 45%, Pb precipitation usually happens in the ingot. However, Pb precipitation in casting reduces gradually with increasing solid fraction of mushy, and when solid fraction is larger than 45%, Pb precipitation in casting can be removed.

 

Key words:   Al-28Pb alloy; solid fraction; stirring temperature; alloy mushy

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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