Molten metal gas analysis
US4757707A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1987 |
| Grant date | Jul 19, 1988 |
| Priority date | — |
| Expiry date | Mar 17, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/125
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for determining the concentration of a selected gas, e.g. hydrogen, nitrogen or oxygen, in molten metal of known temperature and composition (other than dissolved gases) comprises a tubular probe having an outer sheath, impermeable to the metal, constructed from a gas permeable refractory or cermet for immersion in the melt, a passageway for passing a gas of known composition through the probe such as to realize an equilibrium condition, via the sheath, with the gas dissolved in the melt and an analyzer for analyzing the equilibrated gas collected from the probe whereby to determine the concentration of the selected gas in the melt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.