Electric resistance welded pipe welding apparatus
US10160058B2 · kind B2 · utility
0Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2013 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Jul 19, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for manufacturing electric resistance welded pipe, in which two across-opening-facing end parts (2a, 2b) of an open pipe (1) including an opening (2) extending in a running direction are melted by an induction current generated by an induction heating means and joined together at a join portion. The induction heating means includes a first induction coil (3), and the first induction coil (3) is disposed above the opening (2) so as not to encircle the outer circumference of the open pipe (1) and so that a primary current circuit is formed straddling the opening (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.