Water treatment for water injection plasma arc cutting apparatus
US4649258A · kind A · utility
0Cited by
4References
2Claims
0Family size
Inventor
Key dates
| Filing date | Sep 25, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Sep 25, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K35/228
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The service life of torches used for water injection plasma arc cutting and like water cooled devices is increased by treating cooling and injection water of high dissolved solids content so as to lower the dissolved solids content of the water until its Ryznar Stability Index is in the range of about 5.5 to about 7.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.