二次冷轧直喷系统轧前带钢表面析出油膜厚度模型及其影响因素研究
|
摘要
针对以往现场对于二次冷轧机组直喷系统轧前带钢表面析出油膜厚度没有理论模型、影响润滑控制的问题,结合二次冷轧机组直喷系统的设备与工艺特点,在引入乳化液浓度析出率与乳化液流量剩余率概念的基础上,建立了一套适合于二次冷轧直喷系统的轧前带钢表面油膜厚度模型。选择典型规格产品定量分析了乳化液流量密度、乳化液浓度、乳化液析出距离、带钢入口轧制速度对带钢上下表面油膜厚度的影响,并将其应用到某1220二次冷轧机组的生产实践,编制出了相应的模型计算软件,使用效果良好,给企业创造了较大的经济效益。
In light of no theoretical model for the plate-out oil film thickness on strip surface of direct application system and the problem that the oil thickness affected lubrication control in double cold rolling,after fully combining the equipment and technological characteristics,based on the concept of emulsion concentration plate-out rate and flow residual rate,a model of plate-out oil film thickness on strip surface of direct application system in double cold rolling was established. Then,the effects of emulsion flow density,emulsion concentration,emulsion plate-out distance and strip entry rolling velocity on the oil film thickness on top and bottom strip surface were quantitatively analyzed with typical specification products. This model was applied to the production practice of a 1220 double cold reduction mill with the corresponding compiled model calculation software,which achieved good using effect and created a great economic benefit for the enterprise.
In light of no theoretical model for the plate-out oil film thickness on strip surface of direct application system and the problem that the oil thickness affected lubrication control in double cold rolling,after fully combining the equipment and technological characteristics,based on the concept of emulsion concentration plate-out rate and flow residual rate,a model of plate-out oil film thickness on strip surface of direct application system in double cold rolling was established. Then,the effects of emulsion flow density,emulsion concentration,emulsion plate-out distance and strip entry rolling velocity on the oil film thickness on top and bottom strip surface were quantitatively analyzed with typical specification products. This model was applied to the production practice of a 1220 double cold reduction mill with the corresponding compiled model calculation software,which achieved good using effect and created a great economic benefit for the enterprise.
引文
[1]白振华,宋和川,钱承,等.二次冷轧设备及工艺研究进展[J].塑性工程学报,2016,23(6):87-93.BAI Zhenhua,SONG Hechuan,QIAN Cheng,et al.Research development of double cold reduction equipment and process[J].Journal of Plasticity Engineering,2016,23(6):87-93.
[2]魏立群,戴志方,肖壮,等.高速冷连轧机组的振动与对策研究[J].机械工程学报,2016,52(11):88-94.WEI Liqun,DAI Zhifang,XIAO Zhuang,et al.Research of vibration and strategy in high speed cold-rolling mill[J].Journal of Mechanical Engineering,2016,52(11):88-94.
[3]FUJITA N,KIMURA Y,KOBAYASHI K,et al.Dynamic control of lubrication characteristics in high speed tandem cold rolling[J].Journal of Materials Processing Tech.,2016,229:407-416.
[4]梁胜龙.辊缝油膜承载力对冷轧机振动的影响[J].锻压技术,2017,42(3):119-122.LIANG Shenglong.Influence of oil film bearing capacity of roll gap on vibration of cold rolling mill[J].Forging&Stamping Technology,2017,42(3):119-122.
[5]陈晓军.冷轧机轧制参数对振动临界速度的影响[J].锻压技术,2017,42(7):92-96.CHEN Xiaojun.Influence of rolling parameters of cold rolling mill on vibration critical speed[J].Forging&Stamping Technology,2017,42(7):92-96.
[6]白振华,王松尧,崔亚亚,等.乳化液流量与速度关系曲线优化设定技术[J].钢铁,2017,52(7):58-63.BAI Zhenhua,WANG Songyao,CUI Yaya,et al.Study on optimization technology of relationship graph between flow rate of emulsion and rolling speed in cold rolling process[J].Iron and Steel,2017,52(7):58-63.
[7]白振华,侯彬,宋和川,等.冷连轧过程乳化液流量综合优化设定技术[J].钢铁,2017,52(3):58-63.BAI Zhenhua,HOU Bin,SONG Hechuan,et al.Research on comprehensive optimization setting technology of emulsion flow in cold rolling process[J].Iron and Steel,2017,52(3):58-63.
[8]白振华,宋和川,侯彬,等.冷轧机组升降速过程轧制压力变化模型及其影响因素研究[J].塑性工程学报,2017,24(3):135-141.BAI Zhenhua,SONG Hechuan,HOU Bin,et al.Influencing factors of rolling pressure and its change model in the speed up and down process of cold rolling mill[J].Journal of Plasticity Engineering,2017,24(3):135-141.
[9]李长生,李有元,余涛,等.四辊可逆冷轧机轧制润滑工艺实验研究[J].东北大学学报(自然科学版),2010,31(8):1117-1120.LI Changsheng,LI Youyuan,YU Tao,et al.Experimental research on rolling-lubricating process on 4-high reversing cold rolling mill[J].Journal of Northeastern University(Natural Science),2010,31(8):1117-1120.
[10]张旭,苑光照,孙建林.铝板带轧制润滑作用机理及对轧后质量的影响[J].塑性工程学报,2017,24(2):212-216.ZHANG Xu,YUAN Guangzhao,SUN Jianlin.Lubricating mechanism in aluminum cold rolling and its effects on surface quality of aluminum strips[J].Journal of Plasticity Engineering,2017,24(2):212-216.
[11]徐冬,杨荃,王晓晨,等.冷轧界面油膜厚度对表面形貌转印过程的影响[J].哈尔滨工业大学学报,2017,49(1):160-165.XU Dong,YANG Quan,WANG Xiaochen,et al.Influence of lubrication film thickness on transfer of surface topography at cold rolling interface[J].Journal of Harbin Institute of Technology,2017,49(1):160-165.
[12]AZUSHIMA A,INAGAKI S,OHTA H.Plating out oil film thickness on roll and workpiece during cold rolling with O/W emulsion[J].Tribology Transactions,2011,54(2):275-281.
[13]孙建林.轧制工艺润滑原理、技术与应用[M].北京:冶金工业出版社,2010.SUN Jianlin.Lubrication theory,technology and application of rolling process[M].Beijing:Metallurgical Industry Press,2010.
[2]魏立群,戴志方,肖壮,等.高速冷连轧机组的振动与对策研究[J].机械工程学报,2016,52(11):88-94.WEI Liqun,DAI Zhifang,XIAO Zhuang,et al.Research of vibration and strategy in high speed cold-rolling mill[J].Journal of Mechanical Engineering,2016,52(11):88-94.
[3]FUJITA N,KIMURA Y,KOBAYASHI K,et al.Dynamic control of lubrication characteristics in high speed tandem cold rolling[J].Journal of Materials Processing Tech.,2016,229:407-416.
[4]梁胜龙.辊缝油膜承载力对冷轧机振动的影响[J].锻压技术,2017,42(3):119-122.LIANG Shenglong.Influence of oil film bearing capacity of roll gap on vibration of cold rolling mill[J].Forging&Stamping Technology,2017,42(3):119-122.
[5]陈晓军.冷轧机轧制参数对振动临界速度的影响[J].锻压技术,2017,42(7):92-96.CHEN Xiaojun.Influence of rolling parameters of cold rolling mill on vibration critical speed[J].Forging&Stamping Technology,2017,42(7):92-96.
[6]白振华,王松尧,崔亚亚,等.乳化液流量与速度关系曲线优化设定技术[J].钢铁,2017,52(7):58-63.BAI Zhenhua,WANG Songyao,CUI Yaya,et al.Study on optimization technology of relationship graph between flow rate of emulsion and rolling speed in cold rolling process[J].Iron and Steel,2017,52(7):58-63.
[7]白振华,侯彬,宋和川,等.冷连轧过程乳化液流量综合优化设定技术[J].钢铁,2017,52(3):58-63.BAI Zhenhua,HOU Bin,SONG Hechuan,et al.Research on comprehensive optimization setting technology of emulsion flow in cold rolling process[J].Iron and Steel,2017,52(3):58-63.
[8]白振华,宋和川,侯彬,等.冷轧机组升降速过程轧制压力变化模型及其影响因素研究[J].塑性工程学报,2017,24(3):135-141.BAI Zhenhua,SONG Hechuan,HOU Bin,et al.Influencing factors of rolling pressure and its change model in the speed up and down process of cold rolling mill[J].Journal of Plasticity Engineering,2017,24(3):135-141.
[9]李长生,李有元,余涛,等.四辊可逆冷轧机轧制润滑工艺实验研究[J].东北大学学报(自然科学版),2010,31(8):1117-1120.LI Changsheng,LI Youyuan,YU Tao,et al.Experimental research on rolling-lubricating process on 4-high reversing cold rolling mill[J].Journal of Northeastern University(Natural Science),2010,31(8):1117-1120.
[10]张旭,苑光照,孙建林.铝板带轧制润滑作用机理及对轧后质量的影响[J].塑性工程学报,2017,24(2):212-216.ZHANG Xu,YUAN Guangzhao,SUN Jianlin.Lubricating mechanism in aluminum cold rolling and its effects on surface quality of aluminum strips[J].Journal of Plasticity Engineering,2017,24(2):212-216.
[11]徐冬,杨荃,王晓晨,等.冷轧界面油膜厚度对表面形貌转印过程的影响[J].哈尔滨工业大学学报,2017,49(1):160-165.XU Dong,YANG Quan,WANG Xiaochen,et al.Influence of lubrication film thickness on transfer of surface topography at cold rolling interface[J].Journal of Harbin Institute of Technology,2017,49(1):160-165.
[12]AZUSHIMA A,INAGAKI S,OHTA H.Plating out oil film thickness on roll and workpiece during cold rolling with O/W emulsion[J].Tribology Transactions,2011,54(2):275-281.
[13]孙建林.轧制工艺润滑原理、技术与应用[M].北京:冶金工业出版社,2010.SUN Jianlin.Lubrication theory,technology and application of rolling process[M].Beijing:Metallurgical Industry Press,2010.