中国铸造2006，Vol.3Issue(2)：102-107,6.
Manufacture technique of semi-solid slurry of hypoeutectic Al-Si alloy by low superheat pouring and weak electromagnetic stirring
Manufacture technique of semi-solid slurry of hypoeutectic Al-Si alloy by low superheat pouring and weak electromagnetic stirring
摘要
Abstract
The semi-solid slurry of hypoeutectic Al-Si alloy was manufactured by low superheat pouring and weak electromagnetic stirring. The effects of pouring temperature and stirring power on the semi-solid slurry making process were investigated. The results indicate that the semi-solid slurry to satisfy rheocasting requirement can be made by a combination of low superheat pouring and weak electromagnetic stirring. The pouring temperature (or superheat) and the stirring power significantly affect the morphology and the size of primary α-Al, while there is no obvious effect of the stirring time on primary α-Al. Compared with the samples made by low superheat pouring without stirring, the nucleation rate,particle morphology and grain size of primary α-Al in A356 Al alloy are markedly improved by a process of applying both low superheat pouring and weak electromagnetic stirring. Under the condition of weak electromagnetic stirring applied, the pouring temperature with low superheat can be equivalerttly to reach the effectiveness obtained from the even lower pouring temperature without stirring.关键词
semi-solid/low superheat pouring/weak electromagnetic stirring/hypoeutectic Al-Si alloy/A356 Al alloyKey words
semi-solid/low superheat pouring/weak electromagnetic stirring/hypoeutectic Al-Si alloy/A356 Al alloy分类
矿业与冶金引用本文复制引用
LIU Zheng,MAO Wei-ming,ZHAO Zheng-duo..Manufacture technique of semi-solid slurry of hypoeutectic Al-Si alloy by low superheat pouring and weak electromagnetic stirring[J].中国铸造,2006,3(2):102-107,6.基金项目
The paper is supported by the Hi-tech Research and Development Program of China (Authorized No.: G2002AA336080), and the National Natural Science Foundation of China (Authorized No:50374012). （Authorized No.: G2002AA336080）
