Automotive plastic parts are divided into three categories: interior, exterior and functional parts. The varieties of automobile plastics in China are polypropylene, polyvinyl chloride, polyurethane, unsaturated resin, ABS, PF, PE, PA, PC and composite materials. In terms of usage, Germany is PVC, PU, PP, PE and ABS; USA is Pu, PP, PE, PVC, ABS; Japan is PVC, PP, PU, ABS, PE, FRP.
Bumper is one of the main external parts of automobile. The bumper is generally made of molded plastic plate, modified polypropylene material or glass fiber reinforced plastic, which is molded, blistered or injection molded.
The radiator grille is made of ABS or PC / ABS alloy by injection molding.
The mudguard requires that the materials used have weather resistance and good formability. Toughened polypropylene is produced by injection molding. Heavy truck King Steyr's fender is made of glass fiber reinforced plastic.
The deflector is usually light in weight, high in rigidity, novel in design and streamlined in shape. According to the requirements of different models, sheet molding plastics, glass fiber reinforced plastics, polyolefins and other materials can be used, as well as modified polypropylene and ABS. Hollow formed deflector has low cost and easy surface coating.
Most headlamps use a PC with a hard film on the surface. Headlamp glass has transparency, heat resistance, impact resistance, easy molding, scratch resistance and weather resistance. For the rear indicator lamp combination lamp, the lamp cover material is pmna, and the lamp shell material is filled with modified polypropylene and bonded with hot melt adhesive. With the development of vibration welding technology, heat-resistant ABS is used for lamp shell material, so vibration welding can be used between lamp shell and lampshade, which is convenient for material recycling.