Mechanism and simulation of external cooling in aluminum casting-rolling process  

作　　者：高志 

机构地区：[1]School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China

出　　处：《中国有色金属学会会刊：英文版》2005年第5期1113-1119,共7页Transactions of Nonferrous Metals Society of China

基　　金：Project(G1999064906)supportedbytheNationalBasicResearchProgramofChina

摘　　要：External cooling technology is one of the key technologies to realize fast-casting-rolling process of aluminum, i.e. using compulsive cooling on the external surface of rollers and aluminum plate to improve the cooling ability of system, increase casting-rolling speed, and enhance the quality of aluminum plate. Heat transfer model of casting-rolling process was proposed and the characteristics of the temperature field of roller-plate system were analyzed. The influences of external cooling surface of the plate and the roller on the temperature field of the roller and the aluminum plate and the casting-rolling speed were discussed, and the relationship between external cooling and internal cooling were also analyzed. Experiment results show that, with the increase of casting-rolling speed, the influence of cooling plate surface on increasing casting-rolling speed was gradually decreased, but that of cooling roller surface was enhanced. Different mechanisms of external cooling plate surface and roller surface for improving casting-rolling speed account for this phenomenon.External cooling technology is one of the key technologies to realize fast-casting-rolling process of alumi- num, i.e. using compulsive cooling on the external surface of rollers and aluminum plate to improve the cooling ability of system, increase casting-rolling speed, and enhance the quality of aluminum plate. Heat transfer model of casting-rolling process was proposed and the characteristics of the temperature field of roller-plate system were analyzed. The influences of external cooling surface of the plate and the roller on the temperature field of the roller and the aluminum plate and the casting-rolling speed were discussed, and the relationship between external cooling and internal cooling were also analyzed. Experiment results show that, with the increase of casting-rolling speed, the influence of cooling plate surface on increasing casting-rolling speed was gradually decreased, but that of cooling roller surface was enhanced. Different mechanisms of external cooling plate surface and roller surface for improving casting-rolling speed account for this phenomenon.

关 键 词：铝 铸造工艺 旋转式机械 冷却处理 轧制工艺 

分 类 号：TG335[金属学及工艺—金属压力加工]