Method of manufacturing welding electrode for underwater welding
US5436428A · kind A · utility
1Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1993 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Aug 6, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K35/365
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A welding electrode suitable for underwater welding is manufactured from a welding rod with a flux layer thereon by forming a protective coating of a waterproofing material at least over this layer and subjecting it to a pressure at least as great as the pressure at a depth of water at which the welding electrode is intended to be used such that the waterproofing material is driven into pores and interstices of the flux to impregnate it. Waterproofing materials which do not produce organic residues at welding are preferred, such as liquid sealant with metallic aluminum powder, polyurethane, resins and epoxy-based coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.