Method of strip elongation control in continuous annealing furnaces
US5174835A · kind A · utility
0Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1990 |
| Grant date | Dec 29, 1992 |
| Priority date | — |
| Expiry date | Nov 20, 2010 |
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, then through a portion of the furnace, then 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.