THERMAL TREATMENT PROCESS OF A FIBER LEATHER PLATE AND DEVICE FOR IMPLANTATION OF THERMAL TREATMENT PROCESS

摘要

The present invention relates to a method of heat treating a ferrous alloy sheet and, more particularly, a steel sheet and to a device designed to implement such a method. The heat treatment process of a ferrous alloy plate (1) comprises a step of performing a heat treatment on said plate (1) when in operation, immersing it in at least one molten oxide bath (5). 16), wherein said molten oxide bath (5, 16) has a viscosity of less than 3x10-1 pa.s, preferably less than 2x10-2 pa.s, with the surface of said bath (5, 16 ) is in contact with a non-oxidizing atmosphere, wherein said molten oxides are inert to iron, and the difference (??) between the temperature of said ferrous alloy plate (1) at the inlet of the bath (5, 16) and the temperature of said bath (5,16) is between 25 ° C and 900 ° C; and the remaining oxide residues on the surfaces of said ferrous alloy plate (1) are eliminated at the outlet of said bath (5, 16).