铜辊套对铝带双辊铸轧速度提升的量化研究  

Quantitative study on improvement of twin roll casting speed of aluminum strip by copper roll sleeve

作　　者：赵日东 黄华贵[1,2] 冯淼 孙静娜 袁喜利[3] 宋建民 ZHAO Ridong;HUANG Huagui;FENG Miao;SUN Jingna;YUAN Xili;SONG Jianmin(School of Mechanical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China;National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao,Hebei 066004,China;Zhuoshen Non-ferrous Metals Plant&Equipment Co.Ltd.,Baoding,Hebei 072750,China)

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004 [2]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004 [3]涿神有色金属加工专用设备有限公司,河北保定072750

出　　处：《燕山大学学报》2023年第1期20-27,共8页Journal of Yanshan University

基　　金：国家自然科学基金资助项目(51974278);河北省自然科学基金杰出青年基金资助项目(E2018203446)。

摘　　要：双辊铸轧工艺是一种短流程、高效、低能耗的近终成形工艺。但较低的铸轧速度成为制约提高铸轧工艺生产效率的关键因素。基于此,使用换热效率更高的铜辊套成为提高铸轧工艺生产效率的研究热点。本文通过数值模拟与实验,探究了铜辊套与钢辊套分别能够达到的最快铸轧速度,量化铜辊套对铸轧速度的提升效果。模拟结果与实验结果均表明,基于本实验平台,稳定铸轧时,铜辊套的最快铸轧速度可达到10 m/min,是钢辊套的2.5倍。最后建立了双辊铸轧稳态的热阻模型,通过计算得到,在相同条件下,铜辊套的热流量是钢辊套的4~8倍。上述研究结果能够为工业化铸轧机提速改造提供理论依据和指导。In order to quantify the effect of copper roll sleeve versus steel roll sleeve on the improvement of casting speed in the process of twin roll casting,a two-dimensional heat-flow coupling model was established,and the fastest casting speed of copper roll sleeve and steel roll sleeve was explored and verified by experiments.The simulation results and experimental results show that the fastest casting speed of copper roll sleeve is twice that of steel roll sleeve.Then the steady-state thermal resistance model of twin roll casting was established.Through analysis,it was found that under the same conditions,the heat flow of copper roll sleeve is 4~8 times higher than that of steel roll sleeve.The above research theoretically quantifies the improvement effect of the heat exchange capacity of the copper roll sleeve relative to the steel roll sleeve,and provides theoretical guidance for the speed-up transformation of the industrial casting mill.

关 键 词：双辊铸轧 铜辊套 钢辊套 铸轧速度 传热热阻 

分 类 号：TG355[金属学及工艺—金属压力加工]