Process and device for bringing a strip traveling in a liquid into contact with a diverting roll
US4684451A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1986 |
| Grant date | Aug 4, 1987 |
| Priority date | — |
| Expiry date | Mar 24, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/36
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Process and apparatus for degreasing and cleaning metal strips (3) traveling at high speed in a liquid (2) by bringing them into contact with a diverting roll (4). The roll (4) has a surface of contact with the strip (3) which comprises circumferential grooves (18). A gas is introduced into the liquid (2) in the vicinity of the surface of the roll (5) so that the fluid entrained between the strip (3) and the roll (4) is a compressible mixture of liquid and gas. In particular, when the liquid (2) is an electrolyte, the gas release can be produced by means of electrodes (10, 11). A hood (12) enables the gas released to be retained in the vicinity of the contact surface of the roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.