METHOD FOR SMELTING MEDIUM- AND HIGH CARBON LOW-ALLOYED STEELS

摘要

METHOD FOR MELTING average high carbon low alloy steel comprising metal decarburization to the carbon content below its branded content in the finished steel, metal release, and administered .in it uglerodsoderzhaschshs materials, ferromanganese and alloying ferroalloys based preparation dore alloy of the required chemical composition after partial filling of the bucket, wherein u and with the fact that, in order to control the way it was used, to expand its area of application and increase the productivity of the unit, the production of metal they are exhausted continuously with different intensities, which, before filling 0.5-0.8 of the bucket volume, is 1.5-5 times less than the intensity of the rest of the metal, and the introduction of carbon-containing materials and ferromanganese takes place simultaneously from the start of the release to the filling 0.25 -0.4 bucket volumes, then- enter the alloying ferroalloys, ending it when the metal is filled with 0.5 - 0.8 bucket volumes.