Here, the injection time of the injection time is the cavity is filled with plastic melt time required for the plastic mold factory supplier, does not include mold opening, closing and other auxiliary time. Although time is very short injection supplier, impact molding cycle is small, but adjust the injection time of the gate, runner and cavity pressure control has a significant role. Injection reasonable time to help melt the ideal filling, and for improving the surface quality of the products and reduce the size of tolerance has very important significance. Injection time is much less than the cooling time, about 1/10 to 1/15 of the cooling time, this rule can be as a predictor of all plastic parts molding time basis. In making high-quality plastic mold flow analysis Baoan suppliers, only the case where the melt entirely driven by the rotation of the screw cavity filled, the results of the injection time to set equal conditions injection time. If the screw holding pressure switching occurs before the cavity is filled, then the results of the analysis will be more than a set of process conditions. Holding pressure and time during the injection process near the end of the screw stops rotating processing providers, but to move forward, at this time of injection into the packing stage. Packing process in the injection molding machine nozzle continuously fed into the cavity to fill the vacated due workpiece volume contraction. If the cavity is filled without packing, large parts dating shrink about 25%, in particular due to the contraction of the muscle is too large and the formation of shrink marks. Holding pressure is generally about 85% of the maximum pressure filled, of course, be determined according to the actual situation. Your ideal supplier _ Supplier _ integration into a plastic mold factory from Shenzhen harmony Technology Limited. Shenzhen harmony Technology Limited (www.rhctech.net) strong, credible, in Shenzhen of plastic products industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement will lead the integration of innovative ideas into a plastic mold manufacturers and you hand in hand into the brilliant, for a better future!