Injection temperature injection molding temperature is an important factor affecting the injection pressure. Plastic Injection Molding Machine 5 to 6 heating section, each material has its appropriate processing temperature (processing temperature can be found in the detailed data material suppliers). Injection temperature must be controlled within a certain range. Temperature is too low, poor melt plastics, affecting the quality of molded parts, increasing the difficulty of the process; good quality plastic products Which temperature is too high, raw materials break down easily. In the actual injection molding process, the injection molding temperature is often better than the high temperature plastics processing Which barrel, higher than the value of the injection rate and the material properties of the relevant quality plastic products, up to 30 ℃. This is because when the melt is subjected to shear Gate passage and generate high heat caused. In making mold flow analysis can be used to compensate for this difference in two ways, one is to try to measure the melt temperature when air injection, and the other one is modeling the nozzle also included. Back pressure back pressure refers to the screw reverse the accumulator back pressure to overcome. High back pressure in favor of the pigment dispersion and plastic melts, but at the same time extending the plastic screw retraction time, reduce the length of the plastic fibers, increasing the pressure on the injection molding machine, so the back pressure should be lower, not more than 20% of the injection pressure. Foam injection molding, back-pressure should be less than the gas formed high, otherwise the screw will be launched barrel. Some back-pressure injection molding machine can be programmed to screw length compensation during the melting down, this will reduce heat input, allowing the temperature to drop. However, as a result of this change is difficult to estimate, it is difficult for the machine to be adjusted accordingly. Plastic quality plastic products _ _ 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!