Firstly， double color injection molding technology and Moldflow software were introduced， and the function of each module in the software of Moldflow are introduced， and the prospect of double color injection technology in the Then use the Moldflow software on the mobile phone cover injection molding are simulated and analyzed， including filling， packing， injection molding， injection molding filling overlap overlapping pressure Through a series of methods to optimize the process parameters， help product and mold design personnel in the design of the time can predict the possible defects of products， such as cavitation， weld line， short shot To solve the problem of product， mold and molding process， reduce the number of test mode so as to enhance the success rate of a test mode， then it is possible to reduce the cost， improve product quality and shorten the production time， improve production
Abstract This paper first briefly introduces two color injection molding technology and Moldflow software， then describes the role of each module within the Moldflow software， and forecasts the prospect of future development of two color injection molding Then this paper uses Moldflow software to simulates and analyzes the injection molding process ofthe mobile-phone cover， including filling， pressure maintaining， overlapping injection molding filling， overlapping injection molding pressure maintaining， A series of methods is used to optimize the process parameters to help product designers of products and molds predict product defects that may occur when design， such as cavitations， weld marks， short shots， and so on， so as to solve problems occurred in the production， mold and molding process， reduce the number of test molding， thereby enhancing the success rate of once test-molding，reducing costs， improving product quality and shortening production time，greatly improving production efficiency Key words: injection molding; two-colorinjection molding; Moldflow; mobile-phone casing
