Sequential-valve-injection is an important plastic injection molding method, were widely used in around world. This paper briefly expounds the principle of hot runner system and structure of sequential-valve-gate. Weld line is the most important factor can affect the quality of plastic productions, which affects the appearance and mechanical performance of plastic productions. So we study emphatically the effect on the position and performance of weld line with sequential-valve-injection. The result shows that the opening time of valve gate bring a greater influence on the weld line position control than other parameters. Then we use some finite element softwares like Autodesk Moldflow and Autodesk Algor Simulation simulate the injection molding process, then we found SVG can help us get the better plastics, which means better quality and better strength. When there is weld line on the plastic production, the effects of technological parameters of cold runner injection molding on weld line strength control are researched. The present study indicates that, melt temperature produce greater influence on the weld line strength control. After melt temperature, the major factors are packing pressure and mold temperature. The packing time have little influence on the weld line strength control.
I am Frank,works as sales manager of Bestar China Co.,Ltd.which is a reputable China plastic injection mold maker of plastic injection molding with over 15 years.
If you are looking for a China molder maker to make your injection mold,you can contact me at any time.
My company website: http://www.bestar-china.com/
If you are looking for a China molder maker to make your injection mold,you can contact me at any time.
My company website: http://www.bestar-china.com/
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