不锈钢板带冷轧变形区油膜厚度数学模型  

Mathematical model of oil film thickness in the deformation zone during stainless strip steel cold rolling

作　　者：李长生[1] 陈金山[1] 韩文龙[1] 沈继程[1,2] 曹勇[2] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,沈阳110819 [2]宝钢不锈钢有限公司,上海200431

出　　处：《中国科技论文》2012年第8期647-651,共5页China Sciencepaper

基　　金：国家自然科学基金资助项目(51174057)

摘　　要：不锈钢板带冷轧过程中,变形区内油膜厚度对轧制工艺参数设定和表面质量控制有重要的影响。分析了SUS430不锈钢板带冷轧过程变形区内油膜厚度分布规律,分别实验研究了SUS430不锈钢冷轧过程板带和轧辊平均速度、轧辊压扁半径和变形弧长之比、轧制油的动力黏度和咬入角之比、轧制油黏度与压黏系数及平均速度之积、轧辊和带钢均方差粗糙度、轧制油压黏系数和变形抗力之积、乳化液温度差和温黏系数之积等对油膜厚度的影响。在大量实验数据分析的基础上回归建立了变形区油膜厚度数学模型。计算结果与实测值符合良好。During stainless steel cold strip rolling the oil film thickness in the lubricating deformation region has important effects on the setting of process parameters and the conlrol of strip surface quality. We analyzed the oil film thickness distribution in the deformation region during SUS430 steel cold strip roUing. In the laboratory, experiments were conducted on the effects of process parameters on the oil film thickness of SUS430 stainless steel in the cold strip rolling. The process parameters include the average velocity of rolls and strips, the ratio of flatten roll radius to deformation length, the ratio of dynamic viscosity to bite angle, the product of rolling oil viscosity, the pressure viscosity coefficient and average speed, RMS roughness of rolls and slrips, the product of pressure viscosity coefficient and deformation resistance, and the product of emulsion temperature difference and tempematre viscosity coefficient. Based on experimental data, a mathematical model of oil film thickness has been established by the regression method. The calculation results agree well with the measured data from a rolling mill.

关 键 词：不锈钢 润滑 油膜 数学模型 表面粗糙度 

分 类 号：TG335.12[金属学及工艺—金属压力加工]