Performance and function of Elastic Rail Pad

The rubber cushion under the rail refers to the cushion plate made of rubber or plastic,which plays the role of insulation and shock absorption between the parts under the rail and the concrete rail.The rubber cushion under the rail refers to the cushion plate made of rubber or plastic,which plays the role of insulation and shock absorption between the parts under the rail and the concrete rail.Used to make up for the lack of rigid concrete material.Elastic cushion is an organic part of heavy-duty line fasteners system.

The elastic cushion under rail is applied under rail,and its main function is to cushion high-speed shock vibration when vehicles pass through rail,protect roadbed and sleepers,and carry out electrical insulation of railway signal system.Elastomeric cushion materials for heavy-duty fastenings used at home and abroad include rubber materials,plastic materials,thermoplastic elastomeric materials and microcellular foaming materials,among which rubber materials are easy to age,short service life,plastic materials have large rigidity and poor dynamic mechanical properties,while thermoplastic elastomeric materials and micro-foaming materials have excellent flexibility at room temperature and low temperature.Excellent resistance to flexure and cracking.

High elasticity and resistance to stress relaxation,creep properties,more used in elastic cushion.The elasticity of the track is mainly provided by the granular ballast bed and the cushion of the rail,which plays the role of shock absorption and isolation.For concrete rail foundation,the good elasticity of rail cushion is more important.The application of heavy duty railway in our country includes the main fastenings with rail bedding,such as spring bar I type adjusting fastenings,spring bar II type fastenings,spring bar III type fastenings,WJ-L2 type fastenings,TP7 type fastenings,and so on.The elastic cushion under the rail is bounded by the iron cushion plate and divided into the elastic cushion o