Heating process of steel strips in vertical furnaces
US6761778B2 · kind B2 · utility
2Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2002 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Jul 27, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D9/562
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Method of reducing the wrinkles formed in heating zones, by radiant tubes, of continuous heat treatment lines for metal strip, such as annealing or galvanizing lines, the said strip passing over transporting and/or return rollers in the said furnaces, the said method, which consists in modifying the thermal state of the rollers, being characterized in that the said modification is made directly by varying the heating by the said radiant tubes located near the rollers, thereby directly controlling the heat flux emitted by the radiant tubes towards the rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.