FIELD: transportation.
SUBSTANCE: invention relates to methods of reconditioning worn-out surfaces of a frog of a tramway switch. In the method, before layer-by-layer surfacing of core (1) and neck (2), copper plates (4) are installed in the chute to preserve the geometry of chute (3), after surfacing of core (1) and neck (2), copper plates (4) are removed from chutes (3). After restoring the rolling surface of the frog in the middle part of the frog by at least 100 mm in both sides from the mathematical centre of the frog, horizontal platform is surfaced 12 mm below upper rolling plane; then, run-up surface is surfaced in its chutes (3).
EFFECT: increased durability of use of the reconditioned frog of a tramway switch with preservation of strength characteristics of the frog after recovery.
6 cl, 4 dwg
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