作　　者： ; ; ; ;

机构地区： 东北大学材料与冶金学院轧制技术及连轧自动化国家重点实验室

出　　处： 《东北大学学报（自然科学版）》 2005年第7期648-651,共4页

摘　　要： 分析工作辊辊形与侧弯的关系,可知工作辊有载辊形为正时,轧件易出现侧弯,轧制稳定性差·同时根据仿真计算得知:①支撑辊凸度保持不变,在同一轧件宽度下,如果工作辊无载辊形从凸形变成凹形,工作辊有载凸度逐渐减小;②支撑辊凸度保持不变,轧件越宽,则轧辊有载凸度的变化范围越大;③支撑辊凸度从正值变成负值,会使工作辊有载凸度曲线近似向上平移·为此采用以下措施有利于中厚板侧弯的控制:①在配辊时将上工作辊磨出一定的负凸度;②将支撑辊磨出一定的正凸度;③轧制初期多安排成品宽度较小的轧件进行轧制· Analyzing the relation between the work roll profile and side camber of plate indicates that the side camber is liable to occur on workpiece with low stability during rolling if the work roll profile is convex. The off-line simulation results revealed that ① if the backup roll crown and workpiece width remain unchanged, when the no-load work roll profile changes from convex to concave the loaded work roll crown lowers gradually; ② if the backup roll crown remains unchanged, the wider the workpiece, the bigger the variation range of the loaded work roll crown; ③ when the backup roll profile changes from convex to concave, the loaded work roll profile or curved surface will translate upwards as a whole. The following measures are thus recommended to take to control the side camber of plate: ① the top work roll profile should be ground into concave to a certain range before rolling; ② the backup roll profile should be ground into convex to a certain range; ③ at the early stage of rolling process a considerable number of the workpieces to be processed into narrow plates should be scheduled.

关 键 词： 中厚板 侧弯 辊形 凸度 轧制稳定性

领　　域： [金属学及工艺]