Abstract: A method for controlled heating of a part by a steel furnace or a heat treatment furnace includes: obtaining a heating scheme defining a desired evolution of one or more indicators of a temperature of the part during heating in the furnace; providing the part to be heated to the furnace; three-dimensional digital modeling of the heating of the part, in real time and simultaneous to the heating of the part, the digital modeling being based on a discretization of a space containing the part into voxels and using current heating parameters of the furnace and a three-dimensional model of the part to be heated, the modeling including predicting the one or more indicators of the temperature of the part for a next reference time, the heating parameters of the furnace including the power, the temperature, or the settings of actuators; comparing the one or more indicators.

Abstract: Cooled rollers for handling and conveying metallurgical and ferro-metallurgical products, moving inside a furnace, each of these rollers being formed by a water-cooled central shaft on which discs are mounted perpendicularly to the said central shaft in order to serve as a support for the ferro-metallurgical products, wherein the said central shaft are provided with thermal insulation shields for avoiding radiative heat transfer between the atmosphere in the furnace and the cooled shaft of the said roller.