板坯SP侧压过程中头尾部金属流动及尾部翘曲分析  

Study on Material Flowing Behavior of Head and End of the Slab and End-Bending During Sizing Press

作　　者：宁宇[1] 周成[1] 焦四海[2] 宗在荣[3] 谢建新[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]宝钢技术研究院,上海201900 [3]宝山钢铁股份有限公司,上海201900

出　　处：《钢铁》2009年第6期51-55,共5页Iron and Steel

基　　金：国家自然科学基金委员会宝钢联合研究基金资助项目(50171007)

摘　　要：结合热轧板厂SP侧压调宽压力机的实际生产情况,采用有限元数值模拟与物理实验相结合的方法,研究了板坯在侧压调宽过程中头、尾部的变形规律;同时研究了板坯SP侧压后尾部翘曲的形成原因及影响因素。研究结果表明,板坯侧压调宽后,头部和尾部在长度方向上形成"鱼尾",厚度方向上形成"狗骨";头、尾部"鱼尾"及"狗骨"的形成过程不同,尾部侧压过程中金属流动比头部复杂;实际生产的SP侧压调宽过程中,由于模块在板坯厚度方向上存在振动,从而导致板坯尾部在SP侧压后出现翘曲。Based on the process conditions of the hot steel plant, the deformation of the head and end of the slab during sizing press （SP） is analyzed applying FEM and experimental method. The results show that the head and end of the slab formed ＂fish tail＂ along length direction and ＂dog bone＂ along width direction after SP. The forming process of the head and end of the slab is different, and the flowing behavior of slab end is more complicated than of the slab head. The vibration of the die along the vertical direction causes the end of the slab warp after SP.

关 键 词：SP侧压调宽 变形 尾部翘曲 

分 类 号：TG335.5[金属学及工艺—金属压力加工]