高强薄规格热轧卷板肋浪的控制研究
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摘要
系统分析了唐山不锈钢公司1 580 mm热轧产线在生产高强薄规格(h≤2.75 mm)板卷时板面产生肋浪缺陷的原因,即轧辊的热凸度和轧辊挠曲是高强薄规格板卷产生肋浪缺陷的主要原因。通过优化支撑辊、工作辊辊型及相应的控制程序、控制参数,使此系列板卷肋浪缺陷得到了有效控制,缺陷比例由2016年的87%降到2017年的26%。
The cause and solution of the rib waves defects of high strength and thin gauge strip(h≤ 2.75 mm)produced by 1 580 mm hot rolling line in Tangshan Stainless Co.Ltd.were studied in this paper.It was emphasized that roll thermal crown and roll deflection were main formation reasons of the rib waves defects.The defects of rib waves in this series sheet had been controlled effectively by optimizing roll shape of the work and backup roll,improving the control program and control parameters.Therefore,the defects rate of rib waves had been reduced from 87 percent of 2016 year to 26 percent of 2017 year.
The cause and solution of the rib waves defects of high strength and thin gauge strip(h≤ 2.75 mm)produced by 1 580 mm hot rolling line in Tangshan Stainless Co.Ltd.were studied in this paper.It was emphasized that roll thermal crown and roll deflection were main formation reasons of the rib waves defects.The defects of rib waves in this series sheet had been controlled effectively by optimizing roll shape of the work and backup roll,improving the control program and control parameters.Therefore,the defects rate of rib waves had been reduced from 87 percent of 2016 year to 26 percent of 2017 year.
引文
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[3] 董毅,韩斌,时晓光,等.汽车用600 MPa级热轧高扩孔钢的研制与开发[J].轧钢,2016,33(5):67.
[4] 王智聪,郭潇,付中原.600 MPa级汽车桥壳钢生产实践[J].轧钢,2017,34(3):74.
[5] 王训宏,李有元,王勇,等.冷轧机组不对称高次浪形的控制[J].轧钢,2008,25(3):25.
[6] 何伟,邸洪双,夏晓明.五次CVC辊型曲线的设计[J].轧钢,2005,23(2):12.
[7] 兰宇,司小明,王二化.2 250 mm热轧生产线粗轧与精轧机组辊形配置优化研究[J].热处理技术与装备,2017,38(3):37.
[8] 孟静,曹汉民,刘超,等.1 450 mm热连轧机支持辊辊形优化设计[J].热处理技术与装备,2016,37(4):58.
[9] 王晓东,李飞,王秋娜,等.宽带钢热连轧精轧机组成套辊形配置技术研究与应用[J].钢铁,2013,48(1):59.
[10] 张南风,李建华,吴浩鸿,等.涟钢CSP工作辊与支持辊辊形优化的应用研究[J].中国冶金,2012,22(7):34.
[11] 陈超超,何安瑞,邵健,等.高强度低合金钢热轧板形综合控制技术[J].钢铁,2014,49(4):47.
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