RAIL WELDING AND THERMAL PROCESSING COMPLEX Russian patent published in 2014 - IPC E01B11/46 

FIELD: construction.

SUBSTANCE: rail welding and thermal processing complex comprises the following units sequentially located: a welding machine, a flash trimmer, a grinding assembly of weld joint contour and a hardening plant, and preferably a conveyor-pusher, an assembly of preliminary cleaning of a rail end and centring of a rail profile, as well as a defect detector. The assembly of preliminary cleaning of the rail end and centring of the rail profile is located in front of the welding machine. The defect detector in its turn is located after the hardening plant. All assemblies and units of the complex are located in a common casing. A method of fabrication of rail strings includes the consistent butt welding of unhardened links of rail mill products, burr grinding, grinding of weld joint head and consistent quenching of the rail along the entire length by passing the welded rail string through the hardening plant.

EFFECT: by means of the present invention rail strings with a uniform structure and properties throughout the railway can be manufactured from previously hardened mill products.

5 cl, 3 dwg