Continuous hot-dip coating method and apparatus therefor
US6093452A · kind A · utility
8Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1998 |
| Grant date | Jul 25, 2000 |
| Priority date | — |
| Expiry date | Feb 23, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C3/125
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for hot-dip coating a steel strip comprises: (a) continuously annealing the steel strip in an annealing furnace; (b) introducing the annealed steel strip into a molten metal coating bath through a snout; (c) dipping the annealed steel strip into the molten metal coating bath; (d) controlling a pressure inside of the snout; and (e) discharging a gas containing a metal vapor from the snout to outside of the snout. An apparatus comprises an annealing furnace, a coating pot, a control device for controlling a pressure inside the snout and a gas discharging device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.