Research On Injection Mold Design And Molding Process Of Aero Box

The injection molded aero box is currently a packaging box product with particularly excellent protective performance.Due to its excellent protective performance and unique pressure balance valve design,it is particularly suitable for the protection of various precision instruments or valuables in air logistics transportation.For injection molded products,the molding quality depends on many factors such as the structural design of the product,the selection of plastic raw materials,the design and manufacture of injection molds,and the adjustment of molding process parameters.This article combines injection molding simulation technology and experimental design method,taking the aero box body as an example,to study the relationship between mold structure and molding process and molding quality.The main research contents include:1.According to the structure of similar products in the domestic and foreign markets,through improved design,the structure design of an injection molded aero box product is completed.Through the analysis of the modification method of polypropylene,the effect of different inorganic filling modification on the properties of polypropylene is compared.Determine the plastic grade of the designed flight case injection molding;2.Analyze the structure and wall thickness distribution of the flight case,use the injection molding simulation software Moldflow to design the pouring system and cooling system of the aero box mold,and verify the designed aero box pouring system and The rationality of the cooling system;3.To study the relationship between various injection molding process parameters and molding quality,select the four process parameters of mold temperature,melt temperature,holding pressure,and holding time as test factors,and take the common injection molding defects of aero box sink marks and shrinkage Hole is used as the test index,and orthogonal test design and response surface test design are carried out respectively.Through the injection molding simulation to obtain the original data,analyze the significant factors affecting the shrinkage and shrinkage of the aero box,compare and analyze the pros and cons of the two experimental design methods,and optimize the best molding process combination to guide the production of the injection aero box.