GB881957A - Improvements relating to the production of welded tubes - Google Patents
Improvements relating to the production of welded tubesInfo
- Publication number
- GB881957A GB881957A GB23978/58A GB2397858A GB881957A GB 881957 A GB881957 A GB 881957A GB 23978/58 A GB23978/58 A GB 23978/58A GB 2397858 A GB2397858 A GB 2397858A GB 881957 A GB881957 A GB 881957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circular
- semi
- gap
- tube
- rollers
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
881,957. Making tubes; welding by pressure. MORSBACH, P. July 25, 1958 [July 25, 1957], No. 23978/58. Classes 83 (2) and 83 (4). In producing a welded tube one or a pair of continuous incoming metallic strips are formed to a non-circular gapped cross-section consisting of two flat sides and semi-circular end parts with a gap in one or each end part and the gap or gaps are subsequently closed by welding. In an embodiment strip material 10 shaped to flat sided 20, 21 and semi-circular ended 18, 19 gapped tube section is fed between electrode rollers 11, 12 which apply current to the upper parts of the flat sides 20, 21 and then between pressure rollers 13, 14 which press on the flat sides to close the gap at the weld point 15 located between the two sets of rollers. The current which may be direct current in pulse form flows in path 17. The welded tube may be shaped to round section subsequently by rolls exerting pressure on the semi-circular ends or by expanders. The tube may be formed from two shaped iron or steel strips.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH881957X | 1957-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB881957A true GB881957A (en) | 1961-11-08 |
Family
ID=4544919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23978/58A Expired GB881957A (en) | 1957-07-25 | 1958-07-25 | Improvements relating to the production of welded tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB881957A (en) |
-
1958
- 1958-07-25 GB GB23978/58A patent/GB881957A/en not_active Expired
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