Method and oxygen sensor for influencing the properties of cast iron

摘要

Method for adjusting the properties of cast iron comprises measuring the oxygen content of the melt. Sufficient magnesium is then added to adjust the oxygen content at 1420[deg] C to 0.005 - 0.2 ppm. An independent claim is included for a sensor for measuring the oxygen content of cast iron melts with an electrochemical measuring cell (6) which contains a solid electrolyte tube whose outer surface has a coating of zirconium dioxide.