Steel sheet for hot pressing and process for manufacturing hot pressed member using the steel sheet
US10100381B2 · kind B2 · utility
1Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2012 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Sep 2, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/273
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A hot-pressing steel sheet has excellent oxidation resistance to be capable of suppressing the formation of scales and ZnO during hot pressing as well as is excellent in cold pressing properties. A process of manufacturing a hot pressed member uses the steel sheet. The hot-pressing steel sheet includes a coating layer containing 10 to 25 mass % of Ni and a balance of Zn and inevitable impurities and having a mass per unit area of 10 to 90 g/m2, and a lubricating layer containing a solid lubricant, in the order named on the surface of a steel sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.