SWITCHES WORN-OUT SURFACES RESTORATION METHOD Russian patent published in 2018 - IPC B23P6/00 E01B7/28 B23K9/04 B23K101/26 

FIELD: technological processes.

SUBSTANCE: invention can be used in the of worn out during the operation railroad switches, in particular frame rails and ramps restoration by the electric arc surfacing method. Performing the multilayer surfacing by the material with damping properties buffer layer and wear-resistant layers application. Performing each deposited layer forging and performing their rough machining. Ramp surfacing is carried out after the corresponding frame rail surfacing. Ramp surfacing point is forcibly bent and fixed. Cooling rate after surfacing is controlled by the electric heater and monitored during the entire cooling time. After the finishing machining, performing the switch restored surfaces flaw detection.

EFFECT: method enables the internal stresses reduction, improvement of the deposited layer structure and increase in the switches elements restored surface wear resistance.

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