Patent ID: 8465603
Filing Date: 2013-06-18
Classification: C21D,F27D,Y10T

Abstract:
1. A method for controlling the flow of a process gas for the heat treatment of metal materials/workpieces in an industrial furnace ( 1 ), which has at least one treatment chamber ( 2 ), at least one burnoff point ( 4 ) having a first valve ( 4 . 1 ), and a regulator ( 5 ) having a pressure meter ( 5 . 1 ), wherein the process gas comprises a gas mixture ( 6 ) and is used as a flushing gas ( 6 . 1 ) and as a fresh gas ( 6 . 2 ), the method comprising the following steps: a) in a first step, with first valve ( b) in a second step, performed after said first step, closing the first valve ( c) in a third step, detecting a gas pressure in the industrial furnace and when a target gas pressure is detected, adjusting the valve (