FIELD: metals thermal treatment. SUBSTANCE: after preliminary volumetric heating up to 560 590 C head of rail is heated up to temperature of austenitizing by spray-torch stream of gas with simultaneous heating of rail neck and sole by products of firing. Head and sole of rail is simultaneously cooled, providing temperatures difference between them in process of cooling of no more than 100 C. EFFECT: method is used in metals thermal treatment. 3 dwg, 4 tbl
| Title |
Year |
Author |
Number |
| METHOD FOR HEAT TREATMENT OF RAILS |
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