Electromagnetic valve with slag indicator
US4173299A · kind A · utility
9Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1977 |
| Grant date | Nov 6, 1979 |
| Priority date | — |
| Expiry date | Oct 25, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2191
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A valve device for metallurgical containers includes an electric circuit formed by two electrodes opening out into the molten metal at the tapping point. The electric circuit measures the resistive voltage drop across the molten metal at the tapping point to determine the slag content in the tap stream by changes in the measured resistive voltage drop. The rate of tapping of the melt can be controlled simultaneously along with the indication of the presence of slag in the tap stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.