What aspects of engineering plastics are mainly used in the automotive industry?
In the automobile engine peripheral parts application, because the engine peripheral part mainly is the heating and the vibration component, its part uses the material mostly is the glass fiber reinforced nylon. This is because nylon has a good overall performance, nylon modified with glass fiber, the main properties have been greatly improved, such as strength, precision products, dimensional stability have greatly improved. In addition, nylon varieties, easier recycling, recycling, relatively cheap, etc., these factors make nylon become an ideal choice of components around the engine material. The intake manifold is modified nylon in the car is the most typical application, in 1990 the German car company BMW, the first reinforced nylon as raw material to produce the intake manifold application in six cylinder engine with glass fiber; after the United States Ford and DuPont Co, together with glass fiber reinforced PA66 manufacturing application in V6 engine intake manifold, after all the big car companies in the world have followed the modified nylon manifold is widely used.
In the field of automobile manufacturing, PBT is widely used in the production of bumper, carburetor components, fenders, spoiler, spark plug terminal board, fuel system parts, instrument panel, auto ignition, accelerator and clutch pedal etc.. PBT, PC, POM and PA increased in the automobile manufacturing industry is extremely competitive, PA easy to absorb water, heat resistance of PC is less than PBT; take over in car use, because the water resistance of PBT is better than PA, will gradually replace PA,. In the relatively high humidity, very humid circumstances, due to moisture easily lead to plastic reduction, electrical nodes prone to corrosion, often using modified PBT. At 80 and 90% relative humidity, PBT is still in use and works well.
Application to automotive engine parts. The engine cover, the engine decoration cover, the cylinder head and so on parts generally use the modified nylon as the first choice material, compared with the metal material, take the cylinder head as an example, the quality reduces 50%, the cost reduces 30%. In addition to engine components, additional nylon components such as oil filters, wipers, radiators, grilles, etc. are also used in other stressed parts of the vehicle.
