摘要
为解决现场无法在线测量轧辊表面油膜厚度的问题,考虑二次冷轧机组润滑设备与工艺特点,在阐述了二次冷轧过程轧辊表面油膜厚度形成及演变过程机理的基础上,运用流体动力学原理,建立了一套适合于二次冷轧机组的轧辊表面油膜厚度模型。定量分析了轧制速度、轧辊表面粗糙度、辊间接触最大应力、乳化液初始动力黏度和乳化液压力黏度系数等5个因素对轧辊表面油膜厚度的影响规律。将轧辊表面油膜厚度模型应用到某厂1220二次冷轧机组,并通过对比建立的模型求解得出的轧辊表面油膜厚度与现场离线采用称重法测量得到的轧辊表面油膜厚度结果发现,两者误差小于10%,这表明模型计算精度满足现场使用要求。
In order to solve the problem that the oil film thickness of roll surface cannot be measured online,based on the description of the formation and evolution mechanism of the oil film thickness on the surface of the roll during the double cold rolling process,the oil film thickness model of the roll surface was established using the principle of fluid dynamics.The effects of five factors,such as rolling speed,roll roughness,maximum contact stress between rolls,emulsion initial dynamic viscosity and emulsion pressure viscosity coefficient on the roll surface oil film thickness were quantitatively analyzed.The model was applied to the unit of 1220 double cold rolling mill.The error between the calculated roll surface oil film thickness and the measured oil film thickness on the surface of the roll by the weighing method is less than 10%,and the calculation accuracy of the model meets the field requirements.
作者
钱承
张佳胜
白振华
崔亚亚
华长春
陈树宗
QIAN Cheng;ZHANG Jia-sheng;BAI Zhen-hua;CUI Ya-ya;HUA Chang-chun;CHEN Shu-zong(School of Electrical Engineering,Yanshan University,Qinhuangdao 066004,Hebei,China;National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao 066004,Hebei,China;State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,Hebei,China;College of Mechanical and Equipment Engineering,Hebei University of Engineering,Handan 056038,Hebei,China)
出处
《钢铁》
CAS
CSCD
北大核心
2020年第6期68-74,共7页
Iron and Steel
基金
河北省自然科学基金资助项目(E2016203385,E2019203255)
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
轧辊表面
油膜厚度
乳化液
double cold rolling
roll surface
oil film thickness
emulsion
