Systems and methods for monitoring or controlling the ratio of hydrogen to water vapor in heat metal treating atmospheres

摘要

Systems and methods for monitoring a heat treating atmosphere derive from at least one sensor placed in situ in the atmosphere a process variable, which is indicative of the ratio of gaseous hydrogen H₂ (g) to water vapor H₂O (g) in the atmosphere. The systems and methods use the process variable, e.g., to control the atmosphere, or to record or display the process variable.