1. Calendering molding will melt plasticized thermoplastic through two or more parallel to the opposite rotation of the roller gap, so that the melt by the roller extrusion extension, stretch and become a certain size and meet the quality requirements of continuous sheet products, finally by natural cooling molding method. Calendering molding process is often used in the production of plastic film or sheet.
2. Foaming molding is the process of adding appropriate foaming agent to the foaming materials (PVC, PE and PS, etc.) to make the plastic produce microporous structure. Almost all thermosetting and thermoplastic plastics can be made into foamed plastics, and foaming molding has become an important field in plastic processing.
3. Winding molding process is the continuous fiber (or cloth tape, prepreg yarn) soaked in resin glue solution is wound to the core mold in accordance with certain rules, and then after curing, demoulding, to obtain the product.
4. Laminated molding refers to the multi-layer molding process of the same or different materials combined with the whole under heating and pressure. Often used in plastic processing, also used in rubber processing.
5. Pouring molding is a method of plastic processing. The early casting is to inject liquid monomer or prepolymer into the mold under normal pressure, and solidify into products with the same shape as the mold cavity after polymerization. With the development of molding technology, the traditional casting concept has changed, polymer solution, dispersion refers to the polyvinyl chloride paste and melt can also be used for casting molding.
