中厚板冷却过程中热残余应力的控制  

Heat residual stress control during steel plate controlled-cooling process

作　　者：朱冬梅[1] 刘国勇[1] 李谋渭[1] 张少军[1] 

机构地区：[1]北京科技大学机械工程学院,北京100083

出　　处：《北京科技大学学报》2008年第8期947-951,共5页Journal of University of Science and Technology Beijing

基　　金：国家"九五"科技攻关项目(No95-528-03)

摘　　要：确定了中厚板ACC冷却系统的换热边界条件,建立了钢板温度场和应力场有限元计算模型.利用现场实测数据对温度场计算结果进行验证,利用间接耦合方法对钢板的应力场进行计算.分析了不同集管开启方式、不同辊道速度和不同冷却介质温度对钢板热残余应力的影响规律.The exchange heat boundary conditions of an accelerated controlled-cooling system （ACC） were decided, and a finite element model of temperature and stress field was constructed. The calculated result of temperature field was proved by testing data, and the stress field of steel plates was computed by using the coupling method. Finally, the effects of parameters such as header combination, running speed and cooling medium temperature on the heat residual stress were analyzed.

关 键 词：中厚板 控制冷却 热残余应力 工艺参数 

分 类 号：TG335.52[金属学及工艺—金属压力加工] TB333[一般工业技术—材料科学与工程]