摘要
某厂平整机在升速过程中频繁出现带钢打滑问题,严重影响带钢表面质量。通过分析生产过程数据,提出一种判断升速过程带钢与张力辊发生打滑的时间的方法。进一步建立了平整机张力辊与带钢之间运动的数学模型,并分析了升速过程中影响带钢打滑的主要因素。研究发现,较小的张力辊摩擦因数、较大的平整机速度和升速加速度以及较大的张力辊组张力差都会增加带钢与张力辊间的打滑风险,并提出了解决带钢发生打滑的措施,优化后升速过程中的打滑发生率由3.33%降低至0.17%,为平整机稳定生产起到积极作用。
The strip slipping occurred frequently in the speed-up process of the skin pass mill in a factory,which seriously affected the surface quality of the strip.Based on the analysis of production process data,a method for judging the position and time of slipping between strip and bridle roll was proposed.Furthermore,a mathematical model of the movement between the strip and the bridle roll of the skin pass mill was established,and the main factors affecting the strip slipping in the speed-up process were analyzed.It was found that a small friction coefficient of bridle roll,a large speed and acceleration of the leveler and a large tension difference of the bridle roll assembly will increase the slipping risk between strip and bridle.The measures to solve the strip slipping problem were also put forward.The incidence rate of the strip slipping in the speed-up process was reduced from 3.33%to 0.17%after optimization,which played a positive role in the stable production of the skin pass mill.
作者
李洋龙
王永强
文杰
于孟
李宫胤
LI Yang-long;WANG Yong-qiang;WEN Jie;YU Meng;LI Gong-yin(Department of Metallurgical Process,Research Institute of Technology,Shougang Group Corporation,Beijing 100043,China)
出处
《中国冶金》
CAS
北大核心
2020年第1期63-67,共5页
China Metallurgy
关键词
平整机
升速过程
张力辊
打滑
数学模型
skin pass mill
speed-up process
bridle roll
slip
mathematical model
