Hydrogen & Nitrogen Control
Gas sensor - Hydrogen
The Hydris sensor system uses the principle of hydrogen partial pressure distribution between gas and liquid phase. The Hydris system gets a certified gas composition into equilibrium with the liquid metal to be measured. Using Sieverts’ law the hydrogen concentration in liquid metal may be calculated. The Hydris system does this automatically. Immersion of probe and reading are very much like a temperature test, just the immersion time of the probe is a little longer, but typically less than a minute. Hydris’ precision is today the industrial standard of hydrogen measurement in liquid metals, operator independent and free from previous sample preparation and analysis errors. A reported Hydris certificate is worldwide accepted as best method.
Depending on application different sensor types are used:
- Ladle
- Tundish
- Ingot mould
Sensor: Hydris
Gas sensor - Nitrogen
The Nitris sensor system to measure nitrogen in-situ uses a measurement technique similar to Hydris, but sensors and instrumental hardware vary somewhat. Nitris finds its application where a fast nitrogen result is needed, especially when a sudden steel grade change-over or a yield confirmation of a nitrogen alloyer addition is required.
Sensor: Nitris
