Heat-treatment apparatus and heat-treatment method
US11174527B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 29, 2016 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Jun 27, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D9/0018
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A heat-treatment apparatus includes a casing, a loader which loads a workpiece to an inner part of the casing in order to apply a heat-treatment to the workpiece, and a canopy surface provided in the casing to cover the workpiece. The canopy surface includes a slope way with a sectional configuration where the canopy surface is cut on a plane vertical to a conveying direction of the workpiece inside the casing. The slope way includes a highest point and a downward inclined surface extending from the highest point to an outside of a zone between a perpendicular line extending from a left end of the workpiece and a perpendicular line extending from a right end of the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.