摘要
针对二次冷轧机组轧制升降速过程中轧制压力波动的问题,充分考虑乳化液直喷系统的设备与工艺特点,在分析了轧制速度、乳化液体积分数等对带钢表面析出油膜厚度、轧制变形区油膜厚度、摩擦因数、前滑值、轧制压力影响的基础上,建立了乳化液体积分数与轧制速度之间的对应关系,通过在线实时调节乳化液体积分数弥补升降速过程轧制压力的波动,形成一套二次冷轧机组乳化液体积分数在线控制技术。本技术在某钢厂1 220二次冷轧机组应用后,有效地减少了升降速过程轧制压力与带钢厚度波动,提升了轧制稳定性与产品质量,具有进一步推广应用的价值。
In light of the enormous force fluctuation during the rolling acceleration and deceleration in the double cold reduction mill.After fully considered the equipment and technological characteristics of the emulsion direct application system,the effect of rolling velocity and emulsion concentration on the plate-out oil film thickness,deformation zone oil film thickness,friction coefficient,forward slip,rolling force was analyzed.On this basis,the relationship between the emulsion lubrication and the rolling velocity was established.Subsequently,an online control technology of the emulsion concentration in double cold reduction mill was developed by adjusting the emulsion concentration in real time during the rolling acceleration and deceleration in the double cold reduction mill.Then,this technology was applied in a 1 220 double cold reduction mill,reduced the force and thickness fluctuation effectively and improved the rolling stability and product quality,which has further popularization and application value.
作者
李秀军
崔亚亚
白振华
LI Xiu-jun;CUI Ya-ya;BAI Zhen-hua(National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao 066004,Hebei,China;Tinplate Plant,Baoshan Iron and Steel Co.,Ltd.,Shanghai 200431,China;College of Mechanical and Equipment Engineering,Hebei University of Engineering,Handan 056038,Hebei,China;State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,Hebei,China)
出处
《钢铁》
CAS
CSCD
北大核心
2019年第9期79-84,98,共7页
Iron and Steel
基金
河北省自然科学基金资助项目(E2016203385)
重型机械协同创新计划课题资助项目(ZX01-20140400-05)
关键词
二次冷轧
直喷系统
乳化液
体积分数
在线控制
double cold reduction
direct application system
emulsion
volume percent
online control
