DEVICE FOR RIM COOLING DURING THERMOHARDENING OF RAIL WHEELS Russian patent published in 2017 - IPC C21D9/34 C21D1/62 B21H1/04 

FIELD: metallurgy.

SUBSTANCE: device comprises 2 bearing rollers, 2 supporting rollers and sprayers for coolant feed positioned between them. Sprayers for the cooling of the side surfaces of the rim positioned between the bearing rollers are made single-plane, and sprayer for cooling of the rim rolling surface positioned between the bearing and supporting rollers is made featuring the repetition of curvature of the rim rolling surface.

EFFECT: reduction of cooling water consumption, facilitation of its removal, disposal of steam jacket formation between the quenching surface and cooling medium, ensuring that the cooling rates of the rim metal are below critical over the entire section to obtain structure of thin-platy perlite over the entire thickness of the rim and the exclusion of water entry in the wheel disks of adjacent devices.

2 dwg, 6 tbl