中厚板瓢曲缺陷产生原因分析与控制  

Causes Analysis and Control of Buckling Defect in Medium and Heavy Plate

作　　者：庞凯 黄春柳 袁修强 Pang Kai;Huang Chunliu;Yuan Xiuqiang(Liuzhou Iron and Steel Co.,Ltd.)

机构地区：[1]柳州钢铁股份有限公司

出　　处：《宽厚板》2025年第1期24-26,34,共4页Wide and Heavy Plate

摘　　要：针对中厚板瓢曲缺陷产生的主要原因,从轧制及矫直工艺着手进行分析,确定各种形式的瓢曲缺陷主要由于精轧终轧温度控制不当、精轧末道次压下率过大、矫直机压下量设置不合适等引起。通过调整精轧终轧温度、优化精轧末道次压下率和矫直机矫直压下参数并投入生产应用,所生产钢板在满足性能要求的同时,不仅降低了瓢曲率、保证了表面质量,还有效控制了中厚板生产成本。In view of the main causes of the buckling defect in medium and heavy plate,the processes of rolling and leveling are analyzed,it is determined that all the types of buckling defect are caused by the improper finish rolling temperature of finishing passes,excessively big reduction ratio at last pass of finishing passes and inappropriate settings of leveling draft.For all the steel plate produced,not only the requirements of mechanical properties are satisfied with reduced buckling rate and ensured surface quality,but also the production cost of the medium and heavy steel plate is effectively controlled by adjusting the finish rolling temperature of finishing passes,optimizing the reduction ratio of the last finishing pass and the leveling draft parameters and putting them into production application.

关 键 词：中厚板 瓢曲 矫直压下参数 压下率 

分 类 号：TG3[金属学及工艺—金属压力加工]