Method and device for sealing a cover plate for an electrolytic cell
US6007687A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 1998 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | May 26, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B9/65
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention relates to a method and a device for sealing a cover plate for an electrolytic cell. Prior-art cell constructions suffer from the problems of, inter alia, a short service life of certain materials and cracking in the materials which results in leakage, which makes it necessary to put the cell out of operation. The problem is solved by the present method of sealing a cover plate for an electrolytic cell, the cell having a base (2), in which risers (1) for the anodes of the cell are attached, the base consisting of at least one basic material with high thermal conductivity, preferably copper, and at least one cover plate (8) which is arranged on the basic material towards the inside of the cell, the riser having a sealing flange (6), to which the cover plate is connected, an additional plate being attached between riser and cover plate to act as a bellows (9; 20), said bellows being attached by welding (10; 11) to the sealing flange (6) of the riser and the cover plate (8), respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.