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以某显示器结构件为研究对象,注塑件在工作状态下的Mises应力值为评价指标,结合注塑成型数值仿真和结构分析数值仿真,采用正交设计、极差和方差分析方法,获得了最佳工艺参数组合。进行了单因素变动实验,研究了单工艺参数对注塑件力学性能的影响。结果表明:随熔体温度的升高、模具温度的降低、保压压力降低和保压时间的减少,该结构件在工作状态的Mises应力会增大。研究结果对提高注塑件的结构分析精度和指导注塑工艺参数的选取具有一定的参考价值。
Taking a display structural member as the research object, the Mises stress value of the injection-molded part under the working condition is an evaluation index. Combined with the numerical simulation of the injection molding and the numerical simulation of structural analysis, orthogonal design, range and variance analysis are adopted to obtain the best Process parameters combination. A single factor experiment was carried out to study the influence of single process parameters on the mechanical properties of injection molded parts. The results show that with the increase of melt temperature, the decrease of mold temperature, the decrease of packing pressure and the decrease of packing pressure, the Mises stress of the structure will be increased. The research results have certain reference value for improving the structural analysis precision of injection parts and guiding the selection of injection molding process parameters.