The material of automobile air shock absorber airbag mainly includes nylon, polyester fiber, polyamide, polyacrylonitrile, carbon fiber and ceramic fiber and so on. Nylon has higher tensile strength and can withstand greater pressure when the air bag is inflated. Polyester fiber has good wear resistance, suitable for complex environment; Polyamide (such as PA66) has low initial modulus, good elongation and high enthalpy, which can meet the requirements of pressure preservation after the airbag burst; PET polyester has high strength, good shape protection, chemical corrosion resistance and heat resistance
The working principle of automotive air shock absorber airbag mainly includes the following aspects:
Reduce the hydraulic chamber volume change caused by the movement of the inner rod : because the liquid cannot be compressed, the slight change in the inner chamber volume after the inner rod is pressed into the formation of high pressure, and then the shock absorber oil leakage. The use of air bags can alleviate this volume change, prevent the shock absorber oil from producing bubbles, affecting the shock absorber effect
anti-empty trip : when the shock absorber is compressed rapidly, the space under the piston may form a vacuum, resulting in the "empty trip" during the shock absorber rebound, which affects the shock absorber effect. Air bag shock absorption by injecting high pressure gas to avoid the vacuum at the lower end of the piston, optimize the shock absorption effect
