What Are The Applications Of Modified Nylon in Automobile Engines?

In the automotive industry, nylon is mainly used in automotive engines and peripheral components. The parts around the engine are mainly heating and vibrating parts, which are required to withstand temperatures of -40°C to 140°C, and must be resistant to sand and gravel impact and salt spray corrosion, as well as the erosion of various oils and detergents.

• Application of nylon in intake manifold

  Nylon intake manifold has four major advantages: first, it is light, usually 40% of the weight of aluminum alloy; second, it is fast, because the smooth inner wall is conducive to increasing the intake impulse, which can accelerate the power by 3%-5%; third, it saves , the nylon air intake bronchus can bring good air flow and help the gasoline to fully burn; fourth, it is cheap, and the cost is 20%-35% lower than that of aluminum alloy.

  For example, Rhodia's TECHNYL C218V30Black (nylon 6GF30) and TECHNYL A218V30Black (nylon 66GF30) are widely used in the manufacture of intake manifolds.

• Application of nylon in brake pipes and oil pipes
  Another important application of nylon in the automotive field is the fuel system. Most multi-layer fuel pipes use nylon 12 as the base material, and then add fluorocarbon resin or ethylene vinyl alcohol (EVOH) as the lining. Nylon materials are used in this field The important application of nylon fuel pipes is expected to grow at a faster rate. In order to adapt to increasingly strict environmental protection requirements, automobile manufacturers are also producing multi-layer fuel pipe systems, and nylon-clay hybrid CNCID materials can just improve It has barrier properties against fuel vapor overflow, so it is widely used in fuel systems instead of halogen-containing polymers.

• Application of nylon in valve chamber cover
  Nylon's excellent rigidity, mechanical strength and outstanding thermal aging properties at high temperatures can meet the demanding application requirements of engine compartment components. At the same time, due to the harmonious combination of glass fiber and mineral powder, it has low shrinkage and isotropy, so the warpage deformation is small. In addition, since the modified material has relatively low thermal expansion when the temperature rises (the molded parts have very little creep after passing the 5000h high-temperature test), oil leakage can be avoided. Furthermore, more complex oil and gas separation systems can be integrated through welding to reduce oil consumption and meet increasingly stringent emission standards.
   

  

• Application of nylon in cooling and heat dissipation systems

  Nylon applications involving automotive cooling and heat dissipation systems mainly include: radiator water chamber, expansion tank, thermostat cover, fan blades and fan brackets, etc.
  Glass fiber reinforced nylon 66 material maintains its mechanical properties at relatively high temperatures and in antifreeze environments. Not only that, in order to occupy the highest point in the future, the new generation of engine cooling parts uses new nylon materials. The service life under the same conditions of use is increased by more than 70% compared with standard grades. The parts made of it can be used in refrigerant liquids up to 160°C. environment.