不同工艺参数对冰箱箱体发泡密度均匀性影响的仿真研究

Simulation study on influence of different process parameters on foam density uniformity of refrigerator box

以冰箱箱体为研究对象,通过对箱体发泡的流动过程进行模拟仿真,输出充型过程中浇口位置分布、气压分布和密度分布等结果,通过调整工艺参数改善发泡密度的均匀性,提升冰箱箱体的性能。结果表明:仿真生成的密度数据与实际测试得到的密度数据一致性较高,证明了仿真的准确性和可靠性,在此基础上,通过仿真调整注射量、喷嘴尺寸、注射速率等工艺参数,得到了最优的工艺条件,使箱体发泡后的密度均匀性得到大幅提高。

Taking the refrigerator box as the research object,through the simulation of the foaming flow process of the box,the results of the gates position distribution,pressure distribution,and density distribution during the filling process were output.The process parameters were adjusted to improve the uniformity of foam density,so as to improve the performance of the refrigerator box.The results showed that the density data generated by the simulation was in good agreement with the density data obtained by the actual test,which proved the accuracy and reliability of the simulation.On this basis,by adjusting the process parameters such as the injection volume,nozzle size,and injection speed,the optimal process conditions were obtained,and the density uniformity of the target box after foaming was greatly improved.