板带钢热轧润滑轧制厚度及轧制力的实验研究.pdf免费

板带钢热轧润滑轧制厚度及轧制力的实验研究 板带钢热轧润滑轧制厚度及轧制力的实验研究 赵海兴 高雅 贠冰 （北京科技大学材料科学与工程学院 北京 100083 ） 摘 要：通过在不同润滑条件下Q235B 板带钢热轧实验和对实验结果的分析，研究热轧润滑对板带钢热轧过 程中的轧制力、轧后板带厚度的影响。实验进行 5 道次轧制，开轧温度为 950℃。实验表明热轧过程中使用 润滑可以明显降低轧制力，油水混合浓度2.0%润滑效果最明显。实验终轧温度在790℃以下，轧制力降低百 分率随轧制道次的增加成递增趋势，在使用润滑后实际轧制压下率明显增加，轧后板厚随之明显降低。因此 在使用相同热轧轧机条件下，采用工艺润滑可以生产出规格更薄的钢板。采用油水混合2.0%浓度轧制时，轧 制力平均降低百分率达到13.73%，最高降低百分率达到21.94%，轧后板厚比无润滑轧制减小了0.55 ㎜。 关键词：热轧润滑；轧制力；压下率 中图分类号：TG335 文献标识码：A Study on Thickness after Rolling and Rolling Force of Steel Plate Hot Rolling Lubrication Zhao Haixing ，Gao Ya，Yun Bing (School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083) Abstract: Through rolling Q235B steel plate under different hot rolling lubrication conditions and analyzing ， experimental results effect of hot rolling lubrication on rolling force and thickness after rolling was studied. There were 5 rolling passes and beginning rolling temperature was 950 ℃. As the experimental results showed，rolling force was reduced greatly during hot rolling when using lubrication. Oil of 2.0 ％ had the most obvious effect. Experimental finishing temperature was below 790 ℃. With the increase of rolling passes, rolling force reduced percentage of each pass increased. Rolling reduction rate increased clearly and plate thickness after rolling decreased obviously.Therefore, thinner plate steel could be produced when using lubrication. When rolling with oil of 2.0 ％,the average rolling force reduced percentage was 13.73% and the highest rolling force reduced percentage reached 21.94 ％. At the same time ,compared with rolling without lubrication，plate thickness after rolling decreased by 0.55 ㎜. Key words: Hot Rolling Lubrication; Rolling Force; Reduction Percentage 前言 目前，短流程连铸连轧工艺得到长足发展，市场对厚度小于1 ㎜