The nylon baffle seat of the elastic strip type I fastener system protects the sleeper shoulder, maintains insulation and ensures the gauge distance. This requires high toughness, high strength and good insulation properties. PA66 is used as the base resin. The composite toughening system toughens the composite material to have high toughness and high strength. The baffle seat made of this material has high low temperature impact strength and small compression deformation. It has been tested by relevant departments and is now widely used in national railway trunk lines.
In the construction of the Qinghai-Tibet Railway, the domestically-made elastic strip type I fastener insulation gauge baffle is made of PA66 suitable for viscosity, and the main toughening agent is added by MAH-g-POE, MAH-g-EPDM, twin-screw extrusion granulation. The compound anti-UV additive makes the product have high toughness and high strength, and has good low temperature resistance and UV resistance.
Elastic strip type I fastener system nylon bezel seat
