GB913354A - Method of, and improved means for, manufacturing electrically welded tubes - Google Patents
Method of, and improved means for, manufacturing electrically welded tubesInfo
- Publication number
- GB913354A GB913354A GB3313959A GB3313959A GB913354A GB 913354 A GB913354 A GB 913354A GB 3313959 A GB3313959 A GB 3313959A GB 3313959 A GB3313959 A GB 3313959A GB 913354 A GB913354 A GB 913354A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- welded
- seam
- electrodes
- strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/06—Resistance welding; Severing by resistance heating using roller electrodes
- B23K11/061—Resistance welding; Severing by resistance heating using roller electrodes for welding rectilinear seams
- B23K11/062—Resistance welding; Severing by resistance heating using roller electrodes for welding rectilinear seams for welding longitudinal seams of tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
913,354. Making tubes; welding by pressure. SONNICHSEN, A. Sept. 30, 1959, No. 33139/59. Classes 83 (2) and 83 (4). In making a resistance-welded metal tube a strip is brought to tubular form, the seam is welded by current passing transversely of the abutting edges thereof, the welding bulge is removed and a further current to anneal the tube is passed longitudinally along the welded seam between roller electrodes spaced along the path of the tube, each electrode engaging the seam. Steel strip 1 is fed between rotary knives 2 to cut the edges off the strip and then to a rolling mill 3 in which it is shaped to an open tube. The tube is then welded between pressure rollers 10 above which an insulated pair of electrodes 12, 13 is pressed against the tube so that current flows from one electrode to the other across the pressed together seam. Weld flash is removed by a knife 5 and the welded tube passes to a set of four electrodes 6, each contacting the welded seam which pass current longitudinally of the tube while rollers 16, 17 exert side pressure. The tube finally passes through a calibrating machine 7. The mill 3, electrodes 6 and device 7 can be used alone to manufacture tubes of poorer quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3313959A GB913354A (en) | 1959-09-30 | 1959-09-30 | Method of, and improved means for, manufacturing electrically welded tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3313959A GB913354A (en) | 1959-09-30 | 1959-09-30 | Method of, and improved means for, manufacturing electrically welded tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB913354A true GB913354A (en) | 1962-12-19 |
Family
ID=10349048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3313959A Expired GB913354A (en) | 1959-09-30 | 1959-09-30 | Method of, and improved means for, manufacturing electrically welded tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB913354A (en) |
-
1959
- 1959-09-30 GB GB3313959A patent/GB913354A/en not_active Expired
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