Nylon is mainly used in automotive engines and engine peripheral components, the main varieties are GFPA6, GFPA66, enhanced flame retardant PA6 and other products.
1). Application in automobile engine peripheral parts: Because the engine peripheral parts are mainly heating and vibration parts, most of the materials used in the components are glass fiber reinforced nylon. This is because nylon has good comprehensive properties. The main properties of nylon modified with glass fiber have been greatly improved, such as strength, product precision, dimensional stability, etc. In addition, there are many kinds of nylon, which are easy to recycle, relatively cheap and so on. These factors make nylon an ideal choice for engine peripheral components. Intake manifold is the most typical application of modified nylon material in automotive field. In 1990, BMW Motor Company of Germany first used glass fiber reinforced nylon as raw material to produce intake manifold in six cylinder engine. After that, the intake manifold manufactured by Ford with glass fiber reinforced PA66 was used in V6 engine, followed by major automobile companies around the world, and modified nylon intake manifold was widely used.
2). Application in automobile engine parts: Modified nylon is generally used as the preferred material for engine cover, engine decorative cover, cylinder head and other parts. Compared with metal materials, the quality of cylinder head is reduced by 50% and the cost is reduced by 30%. In addition to engine components, other stressed parts of automobiles can also use reinforced nylon, such as oil filters, wipers, radiator grilles, etc.
2. Polyester Material (PBT)
In the field of automobile manufacturing, PBT is widely used in the production of bumpers, carburetor components, fenders, spoilers, spark plug terminals, fuel supply system parts, dashboards, automobile igniters, accelerators and clutch pedals and other automotive parts. The competition between PBT and enhanced PA, PC and POM in automobile manufacturing industry is very fierce. PA is easy to absorb water and PC is less resistant to heat than PBT. In terms of automotive takeover, PBT will gradually replace PA because of its better water absorption resistance than PA. Modified PBT is often used in the case of relatively high humidity and very humid, because the plasticity is easy to decrease due to humidity, and the electrical node is easy to cause corrosion. PBT can still be used normally at 80 C and 90% relative humidity, and the effect is very good.
