Mathematic model of solid fraction during rheo-casting by the cooling sloping plate process  

作　　者：Renguo GUAN Zhanyong ZHAO Hongqian HUANG Qiusheng ZHANG Chunming LIU 

机构地区：[1]College of Materials and Metallurgy,Northeastern University,Shenyang 110819,China

出　　处：《Acta Metallurgica Sinica(English Letters)》2012年第1期81-88,共8页金属学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos.51034002 and 50974038);National Program for Fundamental Research and Development of China (No.2011CB610405)

摘　　要：A mathematic model of the solid fraction during rheo-casting by the cooling sloping plate process was established, and the effects of the process parameters on the solid fraction were analyzed. The calculation results show that the experimental result is approximately agreed with the calculation value. The effect of the casting temperature on the change rate of the solid fraction is not obvious. But the beginning solidification length is greatly influenced by the casting temperature. The beginning solidification length increases with the increment of the casting temperature. The effect of the sloping angle on the solid fraction becomes obvious with the increment of the sloping plate length. The solid fraction increases sharply with the decrease of the initial thickness of the melt. The melt initial thickness between 15 and 20 mm is suggested.A mathematic model of the solid fraction during rheo-casting by the cooling sloping plate process was established, and the effects of the process parameters on the solid fraction were analyzed. The calculation results show that the experimental result is approximately agreed with the calculation value. The effect of the casting temperature on the change rate of the solid fraction is not obvious. But the beginning solidification length is greatly influenced by the casting temperature. The beginning solidification length increases with the increment of the casting temperature. The effect of the sloping angle on the solid fraction becomes obvious with the increment of the sloping plate length. The solid fraction increases sharply with the decrease of the initial thickness of the melt. The melt initial thickness between 15 and 20 mm is suggested.

关 键 词：Sloping plate Rheo-casting Mathematic model Solid fraction PARAMETER 

分 类 号：TG249.9[金属学及工艺—铸造] O141.4[理学—数学]