文章摘要
Structural Parameters Optimization of Head Runner of Tire Tread Extruder Based on RSM
Received:May 05, 2019  Revised:May 05, 2019
DOI：10.12136/j.issn.1000-890X.2019.10.0776
Key Words: tread；extruder；head runner；structural parameter；flow uniformity；RSM；optimization analysis
Author NameAffiliationE-mail
JIANG Zhen* Jiangsu University 1396766658@qq.com 
ZHOU Haichao Jiangsu University  
ZHANG Linxin Aeolus Tyre Co. ，Ltd  
LI Zhao Aeolus Tyre Co. ，Ltd  
WANG Guolin Jiangsu University  
YANG Jian Jiangsu University  
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Abstract:
      The geometric model of the head runner of tire tread extruder was established，and the flow field of the compound in the head runner was simulated and analyzed by numerical simulation method. The variance of the compound flow velocity at the runner outlet was used as the evaluation index of flow velocity uniformity. Three key structural parameters（angle A and B and outlet width D）were selected from eight runner structural parameters by Plackett Burman（PB） test method. The influence of those three key structural parameters on the extrusion quality of the compound was analyzed by central composite design （CCD） method，and the optimized structural parameters were obtained by response surface methodology（RSM）. The results showed that the key structural parameters A，B and D of the head runner were the key factors affecting the quality of compound extrusion. Optimizing the runner structure could significantly improve the uniformity of the flow rate of the extruded compound and the extrusion quality.
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