Production of an atmosphere for the thermal treatment of metals including an apparatus

摘要

The atmosphere for thermal treatment is obtained by catalytic reaction of a mixture of impure nitrogen, advantageously obtained by permeation or adsorption, and of hydrocarbon, the catalytic reaction being performed at a temperature of between 400 and 900 DEG C, typically between 500 and 800 DEG C, with a catalyst based on a precious metal, typically platinum or palladium on an alumina support. The reaction may be performed in a reactor placed inside or outside the oven.