Screw injection molding machine
Injection molding is also called plastic injection molding. Its basic equipment is injection molding machine and injection mold. As shown in the figure, the injection molding principle of screw injection molding machine. The principle is to add granular or powdered plastic into the barrel of the injection machine. After being heated and melted, the screw of the injection machine pushes the molten plastic through the nozzle at the front of the barrel at high pressure and high speed, and quickly injects into the closed mold cavity, filling the cavity. Under pressure, the melt is cooled and solidified to maintain the shape given by the cavity, and then the mold is opened to take out the product.