Method for coating one side only of steel strip with molten coating metal
US4296145A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1979 |
| Grant date | Oct 20, 1981 |
| Priority date | — |
| Expiry date | Dec 28, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C2/40
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Passed through a chamber holding a non-oxidizing atmosphere substantially horizontally, a steel strip is continuously coated on one side only with a molten coating metal. An electromagnetic pump imparts a thrust to the molten coating metal on the entry side of a guide so as to form a stream of the molten metal rising above the bath surface on the exit side of the guide. The rising molten metal stream contacts the bottom surface of the strip to form a film of the coating metal thereon. Provision is made to offer less flow resistance to the rising stream widthwise then lengthwise, so that the molten coating metal flows positively toward both edges of the strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.