Experimental study on new method and automatic system for fast evaluating Al-Si alloy modification effect in front of furnace

被引：5
|
作者：
Shi Dequan [1 ]
Li Dayong [1 ]
Gao Guili [1 ]
Wang Lihua [1 ]
机构：
[1] Harbin Univ Sci & Technol, Sch Mat Sci & Engn, Harbin 150040, Peoples R China
来源：
SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES | 2006年 / 49卷 / 05期
基金：
中国国家自然科学基金;
关键词：
surface tension; modification effect; new method; automatic testing system;
D O I：
10.1007/s11431-006-2003-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Anew method based on the surface tension measurement for fast evaluating modification effect of Al-Si alloy in front of furnace and an automatic system for fast measuring surface tension of molten Al-Si alloy are introduced. By theoretical analysis the relation between surface tension sigma(e) of molten Al-Si alloy and information parameters AP, N, phi(x) and T has been established, namely, sigma(e) = a . Delta P+ b . N+ c. (phi(x) - phi(0)) + d - T+e. By experiments the relationship between surface tension and modification level of Al-Si alloy has been also got that sigma(e) > 530 mN/m, 400 <= sigma(e) <= 530 mN/m and sigma(e) < 400 mN/m are corresponding with AFS 1-2, AFS 3-4 and AFS 5-6 of Al-Si modification effect. Depending on the conclusions, modification effect can be recognized in a few seconds, which is of practical significance for real-time evaluating modification effect of Al-Si alloy in front of furnace.
引用
收藏
页码：569 / 575
页数：7
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