Surface treatment method and surface treatment device
US10570497B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2017 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Feb 8, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/001
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There is provided a surface treatment method in which a processing gas is brought in contact with a heated processing object made of steel, an element in the processing gas is solid-solutionized, and thus a surface treatment is performed on the processing object. The processing object is heated to a heating temperature in a vicinity of a processing temperature at which the surface treatment is performed by heating an atmosphere in which the processing object is disposed. The surface treatment is performed by bringing the processing gas in contact with a surface of the processing object while the processing object which is heated is directly heated to the processing temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.