Method and apparatus for shielding the effluent from plasma spray gun assemblies
US4121082A · kind A · utility
15Cited by
3References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1977 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Apr 27, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3457
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method and apparatus for plasma flame-spraying coating material onto a substrate by means of passing a plasma-forming gas through a nozzle electrode, passing an arc-forming current between said nozzle electrode and a rear electrode to form a plasma effluent, introducing spray coating material into the plasma effluent, passing the plasma effluent axially through a wall shroud extending from the exit of said nozzle electrode and forming a hot gas shroud for the plasma effluent at least within the wall shroud.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.