铝圆坯水平直流电磁连铸温度场和热应力场分析  

Analtsis of the Temperature and Heating Stress Field for Level Direct Current Electromagnetism Continous Casting of Aluminum Bar

作　　者：沈明钢[1] 那贤昭[1] 薛志明[1] 

机构地区：[1]鞍山钢铁学院冶金系

出　　处：《轻合金加工技术》1998年第5期15-18,共4页Light Alloy Fabrication Technology

基　　金：国家自然科学基金青年基金

摘　　要：建立了水平直流电磁连铸铝圆坯温度场和热力场数学模型。计算结果表明：无水空气冷却时，１０ｍｍ铝圆坯允许拉速为２．４ｍｍ／ｍｉｎ，喷水冷却时可提高到１ｍ／ｍｉｎ以上，有工业应用前景。喷水强制冷却时铝圆坯热应力不会引起裂纹。The mathematical model of temperature and heating power field for level direct current electromagnetic continous casting of bar.The calculation shows that the permitted drawing speed is 2.4mm/min by air cooling and 1 m/min by water cooling,which is worth for application in industry.The crack can not be caused by heating power of the aluminum bar when use water cooling.

关 键 词：水平直流 电磁连铸 温度 热应力 铝圆坯 

分 类 号：TG292[金属学及工艺—铸造]