Injection molding is the use of plastic thermal physical properties, the material from the hopper into the barrel, the type of barrel by the heating ring heating, so that the material melting, in the barrel is equipped with external power motor under the action of driving rotation of the screw, material under the action of the screw;

Transport along the spiral groove and compaction, material in plus heat and screw shear gradually under the dual role of plasticizing, melting and homogenization, when screw rotation, the material in the screw groove under the action of friction force and shear force, pushing has molten material to the screw head, at the same time, screw back under the adverse effect of material, make the screw head form the loading space, complete the plasticizing process;

Then screw in the injection cylinder piston under the action of thrust, with high speed, high pressure, the store is indoor material melt through the nozzle of the injection into the mold cavity, the cavity of the molten material after pressure maintaining and cooling, curing finalize the design, mold under the effect of clamping mechanism, open mold, and by the ejection device and by ejection device to finalize the design good products sets out from the mold.