基于Fluent的橡胶挤出机流道设计

摘要/Abstract

摘要： 为满足胎面胶挤出质量的要求并解决传统试差法的缺点，采用经验设计与数值分析相结合的方法，对挤出机流道进行了设计。根据经验及理论改进流道的阻尼结构，运用Fluent分析胶料在流道内的流动状态，证明改进阻尼比简单阻尼分流效果好；设定改进阻尼的三个重要结构参数，分析各参数对流道内胶料的流动状态的影响，并根据影响规律选定最终结构参数；进行挤出实验，分析误差原因并指出后续的研究方向。

关键词: 机头流道, 胶料, 有限元, 结构优化

Abstract: In order to reach the quality demands of extruder rubber and solve the disadvantage of “try and error”, the extruder head flow channel was designed based on the combination of experiences and numerical analyses. The simple flow channel and improved flow channel were designed by experiences and liquid mechanics, a mathematical model was made and the flow behavior of rubber was analyzed by Fluent. The results turn out the improved damping is better than simple damping on distributary function. The parameters of damping were set, the influences of variables on flow behavior and outlet velocity were analyzed and the flow channel structure was optimized by these effects. The extrusion experiments were made，the reasons of errors were analyzed and the following research directions were indicated.

Key words: head flow channel, tire melt, finite element method(FEM), structure optimization

中图分类号:

TQ330.4

林丽红, 贾晓艳, 马铁军, . 基于Fluent的橡胶挤出机流道设计[J]. 中国机械工程.

Lin Lihong, Jia Xiaoyan, Ma Tiejun, . Design of Extruder Flow Channel Based on Fluent[J]. China Mechanical Engineering.

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