Gaseous decarburizing mixtures of hydrogen, carbon dioxide and a carrier gas
US4450017A · kind A · utility
4Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1982 |
| Grant date | May 22, 1984 |
| Priority date | — |
| Expiry date | Oct 21, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D3/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for decarburizing ferrous metals and in particular electrical steels such as motor and transformer laminations wherein metal articles are treated at temperature under a furnace atmosphere generated by injecting N.sub.2 --CO.sub.2 --H.sub.2 mixtures or N.sub.2 -methanol-CO.sub.2 mixtures into the furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.