汽车转向盘注塑模具冷却过程三维模拟  

3D simulation of mold cooling of automotive steering wheel injection

作　　者：周俊杰[1] 王娟[1] 汤松臻[1] Zhou Junjie;Wang Juan;Tang Songzhen(School of Mechanical and Power Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学机械与动力工程学院,郑州450001

出　　处：《低温与超导》2024年第7期83-88,共6页Cryogenics and Superconductivity

基　　金：国家自然科学基金(52376078)资助。

摘　　要：本文通过研究塑料在国内外汽车工业中的应用现状,结合CAE技术在注塑成型中的应用,利用Comsol软件对汽车转向盘注塑模具的冷却过程进行三维模拟,对比分析不同冷却水流率、不同冷却通道表面粗糙度及不同模具材料的情况下聚氨酯塑件的平均温度随冷却时间的变化情况,结果表明:当钢模具和聚氨酯塑件的初始温度为473.15 K,冷却水流率为10 m^(3)/min,通道表面粗糙度为0.046 mm时,冷却2 min后,塑件最热与最冷部分温差为44 K,冷却10 min后,模具块中心位置温度约307 K。在同样的冷却水流率及管道表面粗糙度下,采用铝材比采用钢材的平均温度下降更快,冷却效果更好。通过降低模具温度,降低最终产品的扭曲和和裂缝风险。This article examined the current application status of plastics in the automotive industry both domestically and internationally,combined with the application of CAE technology in injection molding.Using Comsol software,a three-dimensional simulation of the cooling process of injection molds for automotive steering wheels was conducted.The average temperature of polyurethane plastic parts varied with cooling time under different cooling water flow rates,surface roughness of cooling channels,and mold materials.The results show that when the initial temperature of the steel mold and polyurethane plastic parts is 473.15 K,the cooling water flow rate is 10 m^(3)/min,and the channel surface roughness is 0.046 mm,the temperature difference between the hottest and coldest parts of the plastic parts is 44 K after 2 minutes of cooling,and the temperature at the center of the mold block is about 307 K after 10 minutes of cooling.Under the same cooling water flow rate and pipeline surface roughness,using aluminum material results in a faster average temperature drop and better cooling effect than using steel material.By lowering the mold temperature,the risk of distortion and cracking in the final product can be reduced.

关 键 词：汽车转向盘 注塑模具 冷却 数值模拟 影响因素 

分 类 号：TB69[一般工业技术—制冷工程]