Applications in powertrain systems
The engine valve cover and oil pan are molded or pressed with glass fiber reinforced plastic such as polyamide, reactive injection molded polyurethane, epoxy resin, etc.; the cylinder liner and gasket of the engine are produced by high performance or special process. Rubber, including CR and FRM; wear-resistant polypropylene molding materials are applied to wear-resistant molded products such as gears and shafts. In vans and vans, metal shafts replaced by composite (glass and carbon fiber) drive shafts reduce weight, reduce noise and vibration, and make work smoother. The drive shaft made of fiber reinforced plastics by GKN Technology of the United Kingdom has a weight reduction of 50% to 60%, a torsional resistance of 1.0 times that of steel and a bending stiffness of 1.5 times. DuPont has developed a composite glass fiber reinforced nylon 66 for an active collective plastic ventilation system for V6 engines.
Body
There are three main modes of application of plastic on automobile body: (1) All outer cover parts and structural parts are made of plastic: mainly used for high-end sports cars, the skeleton structural parts are made of carbon fiber reinforced plastic, and the outer cover parts are made of glass fiber reinforced plastic. Very high. (2) Metal skeleton and all-plastic outer cover combined with body: The body is made of glass fiber reinforced thermoplastic polyester, and its equipment is 8800t injection molding machine, which is expensive. (3) Part of the plastic outer cover: some high-class cars, the skeleton structure uses metal parts, and the outer cover parts are partially made of plastic parts.
