Plastic molding is a process in which a synthetic resin is used to make a final plastic product. Processing methods include: compression molding (molding), extrusion (extrusion), injection molding (injection molding), and blow molding (hollow molding). Let's distinguish between the molding process of injection molding and blow molding.

(1) Injection molding: Injection molding is a method in which a thermoplastic melt is injected into a mold under high pressure by an injection molding machine (or an injection machine) to obtain a product by cooling and solidification. Injection molding can also be used for molding thermosetting plastics and foamed plastics.

(2) Blow molding: Blow molding is a method in which a hot resin parison closed in a mold is inflated into a hollow product by the pressure of compressed air. Film production, various bottles, barrels, pots and children's toys can be produced by blow molding.

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