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以笔记本电脑显示器前框为研究对象,以其在注塑成型中翘曲变形量(mm)为评价指标,结合注塑成型数值模拟和正交试验设计、极差、方差分析,得到最优工艺组合及影响权重。进行了单因素变动实验,研究了不同工艺参数对塑件翘曲变形的影响。研究表明:合理地选择和调整工艺参数,如在适当范围内减小保压压力和熔体温度,增大模具温度和保压时间,可有效地提高塑件的尺寸稳定性和表观质量。其结果对实际工程的注塑工艺参数的选取有一定的指导意义。
Taking the front frame of notebook computer monitor as the research object, the warp deformation (mm) in the injection molding was taken as the evaluation index, and the combination of the injection molding numerical simulation and the orthogonal experimental design, the range and variance analysis were obtained. Impact weight. Univariate variation experiments were carried out to study the effects of different process parameters on the warpage of plastic parts. The results show that the reasonable selection and adjustment of process parameters, such as reducing the packing pressure and melt temperature, increasing the mold temperature and dwell time, can effectively improve the dimensional stability and apparent quality of the plastic parts. The results of the actual project injection molding process parameters have some guiding significance.