Der Sauerstoffpartialdruck : Hilfsgrösse zur Regelung von Wärmebehandlungsatmosphären

The presence of oxygen in our atmosphere (i.e., the air we breathe) and in the waste gas from combustion systems (heating boilers, motor-vehicles, etc.) is general knowledge. It is also readily apparent that measurement of the oxygen content of waste gas can provide a basis for quality-improvement measures. It is also known that oxygen can often be the cause of damage to the metal surfaces of products and equipment. It is probably less well known, however, that oxygen plays a significant role in heat-treatment systems, the atmospheres of which should in fact be free of it. The following article discusses the importance of oxygen in the heat-treatment of metal products, its measuring, and its connection with relevant atmosphere data.