TAIZHOU HEYA MOULD CO., LTD.

 Technology of two color injection molding that every technician must to know! Two color injection molding technology is also called double-material plastic injection molding technology, which is a technology that uses two plastic materials to mix and mold plastic products. Technical connotation is actually using a mold assembly to shape and weld molding work in the mold. Therefore fundamental principle is to plasticize two different plastic raw materials, and then use mold for welding installation, in order to achieve purpose of two shot injection molding.   T wo shot injection molding technology type 1.1  Core Rotary two color injection molding  t echnology This technology is also known as transfer molding core two shot injection molding technology. Technical principle is to inject the first raw material plastic by injection equipment, inject it into small hole of mold, and become the first plastic after molding. Then mold is rotated by 180°, second raw material plastic is injected b

 36 experience of two-color injection mold design and dual shot injection molding 1.  Basic principles of two-color injection mold design : (1) 1 time for hard plastic and 2 times for soft plastic; (2) 1 time for transparency and 2 times for non-transparency; (3) 1 time for plastic with high molding temperature and 2 times plastic with low molding temperature; Above is basic principle of making a dual shot injection molding, otherwise mold will be undone; in addition, when sealing glue, try to use sealant instead of inserting sealant, even if it is recommended that customer modify product as much as possible by using sealant; 2.  Guide bush guide bushing must be symmetrical top and bottom, left and right . Front and rear modes are symmetrical. 3.  Back mold should be rotated 180 degrees, and front mold does not move . 4.  Spacing of products must be based on spacing of nozzles of plastic injection molding machine . Distance between nozzles of some dual shot injection molding machines i