基于响应面法的齿轮注塑模冷却系统优化

以塑料齿轮注塑模的冷却水道为研究对象,选取水道孔径、水孔间距及水孔至模壁距离3个冷却水道设计参数为试验变量,以模壁温差为质量目标,运用响应面法Box-Behnken设计试验方案,利用Design-Expert软件分析试验结果,构建出试验变量与质量目标之间的二阶响应面模型,并对其进行迭代优化,得出模壁温差最小时的冷却水道设计参数组合。模拟验证表明,响应面法优化效果较好,能够显著降低模壁温差。在3个设计参数中,水孔间距和水孔至模壁距离对模壁温差的影响较显著。

Optimization of Cooling System of Gear Injection Mould Based on Response Surface Methodology

The cooling channel of plastic gear injection mould was taken as the research object.The diameter of water channel,distance between water holes and distance between water holes and the surface of the mould cavity were selected as test variables,and the temperature difference of the mould wall was taken as the quality objective.The response surface method Box-Behnken was used to design the experimental scheme,and the experimental results were analyzed by the Design-Expert software.The second-order response surface model between test variables and quality objectives was constructed,and the optimal design parameters were optimized iteratively.The results of simulation show that the response surface method has a good optimization effect and can significantly reduce the mold wall temperature difference.Among the three design parameters,distance between water holes and distance between water holes and mold wall have significant effects on the mold wall temperature difference.