摘要
为了提高流延辊辊面温度均匀性,本文提出一种螺旋结构改进方法,使螺旋流道呈现入口部分大、出口部分小的形状特征,并进一步基于双向流动螺旋流道的流延辊模型,建立了表征温度均匀性的仿真模型。分析了不同大小的出入口部分弧度之比对辊面温度均匀性的影响。结果表明,出入口部分弧度之比为2:1时,辊面温度均匀性最好,相比于没有改进时的螺旋结构(弧度之比为1:1),辊面温度标准差从0.487 K降低为0.214 K,提升效果明显。此研究可为流延辊的结构设计提供依据。
To enhance the uniformity of the temperature on the surface of the casting roll,this paper proposes a method for optimizing the spiral structure,which results in a spiral flow channel with a larger entrance and a smaller exit.Based on this,a casting roll model with a bidirectional flow spiral channel is established,and a simulation model for characterizing temperature uniformity is further constructed.The influence of different ratios of entrance and exit arc degrees on the temperature uniformity of the roll surface is analyzed.The research results show that when the ratio of entrance and exit arc degrees is 2:1,the temperature uniformity of the roll surface reaches its best,and compared to the unimproved spiral structure(ratio of 1:1),the standard deviation of the roll surface temperature decreases from 0.487 K to 0.214 K,with significant improvement.This study provides an important reference for the structural design of casting rolls.
作者
林旭
杨煜新
何强
黄志高
Lin Xu;Yang Yuxin;He Qiang;Huang Zhigao(Guangdong Jinming Precision Machinery Co.LTD.,Shantou 515098,Guangdong,China;National key laboratory of materials forming and mold technology,Huazhong University of Science and Technology,Wuhan 430074,Hubei,China)
出处
《橡塑技术与装备》
2025年第10期65-68,共4页
China Rubber/Plastics Technology and Equipment
关键词
流延膜
流延辊
数值模拟
温度场
温度均匀性
cast film
casting roll
numerical simulation
temperature field
temperature uniformity
