Strip elongation control in continuous annealing furnaces
US5230857A · kind A · utility
1Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1992 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Sep 24, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D9/56
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Strip elongation in a continuous annealing furnace is controlled by passing the strip around a first driven roll, thence through a portion of the furnace, thence around a second driven roll, wherein the elongation of the strip is sensed. One method is to sense the amount by which the peripheral speed of the second roll exceeds the peripheral speed of the first roll. Roll speeds are monitored by precision resolvers. Another method is to utilize a strip width measurement to determine elongation. Mechanisms are used for profiling tension throughout the furnace length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.