Apparatus for oxidation treatment of metal
US5224998A · kind A · utility
12Cited by
7References
8Claims
0Family size
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Key dates
| Filing date | Nov 28, 1990 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | Nov 28, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C8/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A metal oxidation treatment apparatus to form the passivation film on the surface of the metal to be oxidized such as stainless steel or the like, comprising an oxidation furnace, a gas inlet to introduce gas into said oxidation furnace, a discharge outlet to discharge the gas from said oxidation furnace, and a heater to heat said oxidation furnace to the predetermined temperature, so that the metal to be oxidized is heated and oxidized in dry oxidation atmosphere while gas is passed in said oxidation furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.