基于有限元仿真的不同材质薄壁冰箱门体热变形研究

Research on Thermal Deformation of Thin Wall Refrigerator Door with Different Materials Based on Finite Element Simulation

随着彩板镀膜技术水平不断提高,彩板可以替代玻璃,作为高端冰箱门体面板一种选择。随着冰箱门体面板使用彩板的占比逐渐增大,特别是碳中和时代到来,如何减少、节约用材,成为需要解决的技术课题。彩板替代的技术实现可行性研究,以及关于门体材质、节约耗材的相关研究较少。本文针对此类问题,以现有冰箱门体为研究对象,对引起门体变形的重要生产环节,即发泡过程中进行相关仿真,分析研究温度变化对门体变形影响。主要对两种主流材质的冰箱门体,按照同等幅度进行减薄,通过热-应力仿真,分析研究热变形变化情况。通过相关试验验证,发现门体减薄后,彩板门体变形量明显比玻璃门体要小,符合仿真分析结果,进一步验证高档冰箱彩板替代门体面板的可行性。

With the continuous improvement of color plate coating technology,color plate can replace glass as a choice of high-end refrigerator door panel.With the increasing proportion of color plate used in refrigerator door panel,especially the arrival of carbon neutral era,how to reduce and save materials has become a technical issue to be solved.There are few researches on the feasibility of color plate replacement technology,as well as the door material and consumables saving.Aiming at this kind of problem,this paper takes the existing refrigerator door body as the research object,carries on the related simulation to the important production link which causes the door body deformation,that is,the foaming process,and analyzes the influence of temperature change on the door body deformation.In this paper,two kinds of mainstream materials of refrigerator door body are thinned according to the same amplitude.Through thermal stress simulation,the change of thermal deformation is analyzed.Through the relevant experimental verification,it is found that after the door body thinning,the deformation of the color plate door body is obviously smaller than that of the glass door body,which is in line with the simulation analysis results,and further verifies the feasibility of high-grade refrigerator color plate replacing the door body panel.