Method for controlling steel making process under reduced pressures
US4251269A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1978 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Aug 30, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21C7/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Method of controlling steel making process under reduced pressures, comprising forming an intimate mixture of an exhaust gas and a measured quantity of a reference gas; mass spectrometrically monitoring a sample of the mixture for the ionization currents for selected peaks with which the CO, CO.sub.2, N.sub.2 and reference gas in the sample are concerned; determining the rate or amount of decarburization of the molten steel from the measured value of the quantity of the reference gas in the mixture and the measured values of the ionization currents, and; controlling the process according to the determined value of the rate or amount of decarburization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.