Patent ID: 6383297
Filing Date: 2002-05-07
Classification: C21D,C23C,Y02T

Abstract:
An apparatus for carrying out the process for the joint oxidation and heat treatment of parts at temperatures &lE;1300Â° C. in a treatment compartment of a furnace comprising a neutral or a reactive gas by passing on or atomizing at least one oxidizing reactant at temperatures >570Â° C., wherein after conversion of the structure of the parts which is present at ambient temperature into the structure desired in the heat treatment, a PH2O/PH2 ratio is set in the treatment compartment so that the line FeO+H2=Fe+H2O is exceeded and an oxide layer of FeO<10 &mgr;m is formed, the apparatus having feeding means for feeding the reactant into the treatment compartment and a controller for open- and/or closed-loop control of the means, wherein the feeding means consist of lines which open into the treatment compartment and in which control elements being controllable by the controller and the control elements changing the lines between the open and closed position as a function of the actual signals determined in the treatment compartment and/or of the time signals recorded in the controller, and wherein an O2 probe which determines the actual signals is arranged in the treatment compartment.