高光注塑成型工艺控制试验

Experiment of Process Parameters Control of High-Gloss Surface Quality Part Manufactured by Rapid Heat Cycle Molding Technology

建立了制品对模具型腔复原性的宏观量化表征模型,以自主开发的车用高光蓝牙模具和温控辅助装置为试验基础,以制品质量、线收缩率、翘曲变形和沉降指数等为品质考核指标,采用试验生产与仿真分析相结合的方法对高光制品成型性能进行了试验研究。在考虑到各指标权重因素的同时,采用信噪比之望小特性理论实现了样本数据的归一化处理。得出了各考核参数相对于各个品质指标的影响趋势及影响显著性顺序,进而研究得出了相对于该高光制品的最佳成型工艺组合。

A macroscopic model was created to characterize the replication capability of plastic part to mold cavity.A high-gloss surface mold for front panel of mobile door key,as well as an auxiliary device for controlling the mold temperature,was designed and manufactured.Coupling with simulation and test,the process characteristic of rapid heat cycle molding plastic part was investigated by integrating Taguchi method and single-to-noise （S/N） theory.The weight,linear shrinkage,warpage and sink index of part were consider as estimation quality factors.And the smaller-the-better characteristic theory was used to process the sample data with the weight of each factor considered.The experimental results gave the effect tendency of parameters to quality factors and the significant order of them.And the further research revealed the most suitable combination of process parameters.