Rail Damage Caused By Wavy Wear

Rail corrugation wear (periodic longitudinal deformation) is referred to as corrugation. This is because after the rail is put into use, as the operating time increases, a regular, wave-like periodic uneven wear phenomenon gradually appears on the top of the rail along its longitudinal direction.

 

Rail corrugation is one of the main damage forms of rails

It is a common orbital "stubborn disease"

It is used in high-speed railways and heavy-haul railways

and urban rail transit.

The causes of rail corrugated wear are relatively complex. Stick-slip phenomenon in wheel-rail contact. It is a typical theory to explain the wavy wear of rails.

When the wheel and rail are in contact, a back-and-forth process of adhesion and sliding occurs. During this process, the surface friction also changes alternately in magnitude, so the amount of wear is also different in the process, and wave wear occurs.

Grinding rails is currently an effective measure to eliminate corrugation. In addition, there are some measures below that can slow down the development of corrugation:

①Use continuous welding method to eliminate rail joints and improve the smoothness of the track.

② Improve the rail material, use high-strength and wear-resistant rails, improve the quality of the heat treatment process, and eliminate the residual stress of the rails.

③ Improve the track quality, improve the track elasticity, and make the vertical and horizontal elasticity continuous and uniform.

④Keep the curve direction smooth, the super-elevation setting is reasonable, and the outer rail is oiled while working.

⑤The wheel-rail system should have sufficient resistance, etc.

Please enter corrugation rail grinding machine details and operation video link: 

http://www.tiegongcn.com/rail-cutting-series/tilting-rail-grinder.html