Electrode for a plasma arc torch having an improved insert configuration
US6130399A · kind A · utility
42Cited by
27References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1998 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | Jul 20, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3442
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrode for use in a plasma arc torch has an insert designed to improve the service life of the electrode, particularly for high current processes. The electrode comprises an elongated electrode body formed of a high thermal conductivity material and having a bore disposed in a bottom end of the electrode body. The bore can be cylindrical or ring-shaped. An insert comprising a high thermionic emissivity material, and in some embodiments, a high thermal conductivity material, is disposed in the bore. The insert can be ringed-shaped or cylindrical.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.