Electric resistance welded steel pipe for producing hollow stabilizer, hollow stabilizer, and production methods for same
US11440125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2019 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Jun 6, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2206/81062
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There are provided an electric resistance welded steel pipe for producing a high strength hollow stabilizer excellent in fatigue resistance and a high strength hollow stabilizer. In an electric resistance welded steel pipe (5) for producing a hollow stabilizer, an internal weld bead cut portion (30) has a three-peak shape and a depth (H) of a trough portion (30a) of the three-peak shape is 0.3 mm or less and an angle (θ) formed by a central portion in the circumferential direction of the trough portion (30a) and the top of right and left peak portions (30b, 30c) located on both the right and left sides of the trough portion (30a) is 160° or more and less than 180°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.