High quality hole cutting using variable shield gas compositions
US8354609B2 · kind B2 · utility
3Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2008 |
| Grant date | Jan 15, 2013 |
| Priority date | — |
| Expiry date | Aug 6, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3457
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for a plasma torch system having a plasma torch tip configuration that includes a nozzle, an electrode, and a control unit for controlling a composition of the shield gas flow, such that while cutting the contour the shield gas flow comprises a first shield gas composition and while cutting the hole the shield gas flow comprises a second shield gas composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.