宽厚板头尾及边部形状对称性研究
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摘要
采用有限元模拟与现场试验研究相结合的方法对宽厚板平面形状变化规律进行了研究,分析了宽厚板头尾及两边形状不对称的形成原因。结果表明:转钢方向、总纵轧及总横轧道次数的奇偶性是影响宽厚板头尾及边部不对称的主要因素,通过控制转钢方向并限定总纵轧及总横轧道次数的奇偶性可有效地控制钢板头尾及两边形状的对称性,从而使宽厚板的成材率提高0.8%左右。
Finite element simulation and physics experiment combined method were used to investigated the plan view pattern variation of wide and heavy plate,the causes of shape asymmetrical of wide and heavy plat head,tail and edges were analysised.The results show that the direction of turn steel,the parity of total longitudinal rolling and cross rolling passes number are the main factors that effect shape asymmetry of wide and heavy plat head,tail and edges.It can control the shape symmetry of head,tail and both edges effectively and let the yield of wide and heavy plate increased by 0.8% by controlling the direction of steel rotation and the parity of total longitudinal rolling and cross rolling passes number.
Finite element simulation and physics experiment combined method were used to investigated the plan view pattern variation of wide and heavy plate,the causes of shape asymmetrical of wide and heavy plat head,tail and edges were analysised.The results show that the direction of turn steel,the parity of total longitudinal rolling and cross rolling passes number are the main factors that effect shape asymmetry of wide and heavy plat head,tail and edges.It can control the shape symmetry of head,tail and both edges effectively and let the yield of wide and heavy plate increased by 0.8% by controlling the direction of steel rotation and the parity of total longitudinal rolling and cross rolling passes number.
引文
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[2]陈振业,张胜宏,梁栋.提高中厚板成材率途径的探讨与实践[J].宽厚板,2011,17(6):22.
[3]戴杰涛,戴文笠,李烈军,等.韶钢3 450mm中厚板生产线船板成材率影响因素分析及提高措施[J].轧钢,2015,32(5):32.
[4]矫志杰,胡贤磊,赵忠,等.中厚板轧机平面形状控制功能的在线应用[J].钢铁研究学报,2007,19(5):56.
[5]沈敏,卢春宁,李磊.平面形状控制数学模型研究与应用[J].轧钢,2016,33(6):19.
[6]朱鹏举.中厚板生产MAS轧制过程设定模型的分析[J].轧钢,2015,32(1):17.
[7]刘劲松,张士宏,肖寒,等.MSC.Marc在材料加工工程中的应用[M].北京:中国水利水电出版社,2010:189-233.
[8]尹学霞,肖宏.中厚板平面形状控制的模拟研究[D].秦皇岛:燕山大学,2003:23-25.
[9]姚远,李学通.宽厚板控制轧制过程的仿真研究[D].秦皇岛:燕山大学,2011:21-25.
[10]王立萍,李鸿,李鹏来,等.宽厚板轧制过程有限元模拟分析[J].机械设计与制造,2011(8):213.
[11]张春林,程晓茹,董述峰,等.低碳结构钢中厚板MAS轧制过程有限元模拟[J].特殊钢,2011,32(1):9.
[12]何青松,胡建华.中厚板轧制平面形状控制的有限元模拟研究[D].武汉:武汉理工大学,2009:38-41.