THERMAL TREATMENT DEVICE, HEAT TREATMENT METHOD FOR STEEL MACHINED PART AND HOT BENDING METHOD FOR STEEL MACHINED PART

摘要

FIELD: metallurgy.;SUBSTANCE: group of inventions relates to devices for heat treatment and methods for heat treatment. Device comprises device for supply of thermally treated part further in direction of supply along line of thermally treated part, heating device, including a heating coil located downstream of the supply device in the supply direction, and surrounding the line of passage, cooling device, which is located next to heating coil so that there is no gap with heating coil, after it in supply direction and surrounding passage line, gas supply device, which is located before heating coil in supply direction, is directly connected to heating coil and surrounds transmission line, and which includes plurality of gas compartments, formed by the internal separation of the gas supply device in the direction of supply of the part and additionally comprising an elastic sealing element on the edge of the opening surrounding the line of passage provided in the wall separating the plurality of gas compartments of the gas supply device.;EFFECT: absence of surface scale on heat-treated part.;17 cl, 6 dwg, 1 tbl