Solid friction modifiers for rail head crown (TOR)
The solid friction modifier is designed for the reduction of wheel running surface wear, keeping the friction coefficient between the wheel running surface and rail head crown at around 0.3.
As a result, the lateral forces in the wheel/rail contact are limited and, consequently, wave deformations of rails, the crumbling of material from the wheel running surface, and the level of noise are reduced.
The dimensions of the friction modifier and its applicator shall be chosen according to the character of the operation, available free space and maintenance plan. The evaluation of technical requirements is necessary for the correct solution.