Lubricant surface-treated steel pipe for hydroforming use
US6009913A · kind A · utility
7Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1997 |
| Grant date | Jan 4, 2000 |
| Priority date | — |
| Expiry date | Nov 5, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lubricant surface-treated steel pipe for hydroforming use in which at least its outer surface is coated with a lubricating organic resin to a thickness of 0.5 .mu.m to 100 .mu.m. The surface-treated steel pipe provides excellent prevention of galling and excellent lubrication in hydroforming. Also, hydroforming can be started immediately after the surface-treated steel pipe is cut into short pieces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.