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Rail Fastener Performance Features
May 26, 2018
According to the requirements of rail transit, the new rail fasteners should have the following characteristics:
1) sufficient strength and durability
Rail transit operation time is long, traffic density is high, maintenance condition is poor, the steel rail fastener must have enough strength and durability to ensure traffic safety.
2) it has certain track spacing and horizontal adjustment performance
Rail transit generally adopts the overall structure of the bed, the line curve radius is small, there is abrasion of the rail. This requires that the fasteners should have certain track spacing and horizontal adjustment performance, so as to solve the track spacing and rail level overlimit caused by the uneven settlement of the curved rail wear and the construction error.
3) good insulation performance
Rail transit are commonly used line tracks as reflux rail, which requires the fasteners must have good insulation property, prevent current leakage through the fasteners, cause structural steel and municipal pipeline corrosion.
4) good damping elasticity
The subway and other urban rail transit have high environmental protection requirements for vibration reduction and noise reduction, and the rail fasteners must have good vibration reduction performance, vibration reduction and noise transmission reduction.
5) there is certain universal interchangeability
Fasteners should be simple in structure, less parts, with a certain general interchangeability, low cost, convenient construction and maintenance.