JPS5472752A - Manufacture of spirally welded pipe - Google Patents
Manufacture of spirally welded pipeInfo
- Publication number
- JPS5472752A JPS5472752A JP14023777A JP14023777A JPS5472752A JP S5472752 A JPS5472752 A JP S5472752A JP 14023777 A JP14023777 A JP 14023777A JP 14023777 A JP14023777 A JP 14023777A JP S5472752 A JPS5472752 A JP S5472752A
- Authority
- JP
- Japan
- Prior art keywords
- strip
- welding
- welded pipe
- spirally
- fed
- 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.)
- Granted
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To make preventable the generation of welding defect, in manufacturing the spirally welded pipe, by feeding the strip material at downward pitch to the formerly spirally coiled strip, and by carrying out the internal welding at the position in which edges of above two strips coincide with each other.
CONSTITUTION: The strip 12 is spirally coiled by the forming rolls 14, 15 and 16; the edge of this strip 12 coincides into a butt condition with the edge of the strip 11 just being fed into; this position of coincidence between two edges is shown by Q; the strip 11 is fed at downward pitch into this position Q. The internal welding is carried out on these strips 11 and 12 at this position Q by the welding torch 13. The suitable feed angle θ ranges from 2 to 6 degrees against the horizon. According to this method, the internal welding is carried out at the position where the forward direction of the welding becomes upward pitch, so that the superior spirally welded pipe without welding defect like as slag inclusion, etc., can be manufactured.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52140237A JPS598453B2 (en) | 1977-11-22 | 1977-11-22 | Manufacturing method of spiral tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52140237A JPS598453B2 (en) | 1977-11-22 | 1977-11-22 | Manufacturing method of spiral tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5472752A true JPS5472752A (en) | 1979-06-11 |
JPS598453B2 JPS598453B2 (en) | 1984-02-24 |
Family
ID=15264088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52140237A Expired JPS598453B2 (en) | 1977-11-22 | 1977-11-22 | Manufacturing method of spiral tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS598453B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2697453A1 (en) * | 1992-11-05 | 1994-05-06 | Europipe France | Continuous fabrication of steel tube from strip - by passing through bending and counter-bending rollers and welding joining plane by means of multi-wire welding heads |
AT500488B1 (en) * | 2004-07-28 | 2006-01-15 | Berndorf Band Gmbh & Co | ENDLESS STEEL TAPE BUILT WITH ONLY ONE PARTIAL STRIP |
-
1977
- 1977-11-22 JP JP52140237A patent/JPS598453B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2697453A1 (en) * | 1992-11-05 | 1994-05-06 | Europipe France | Continuous fabrication of steel tube from strip - by passing through bending and counter-bending rollers and welding joining plane by means of multi-wire welding heads |
AT500488B1 (en) * | 2004-07-28 | 2006-01-15 | Berndorf Band Gmbh & Co | ENDLESS STEEL TAPE BUILT WITH ONLY ONE PARTIAL STRIP |
Also Published As
Publication number | Publication date |
---|---|
JPS598453B2 (en) | 1984-02-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5472752A (en) | Manufacture of spirally welded pipe | |
JPS5522442A (en) | Circular pipe forming method and device thereof | |
JPS54155166A (en) | Manufacture of spirally welded steel tube | |
JPS5568121A (en) | Manufacture of large size square steel pipe | |
JPS5581070A (en) | Automatic circumferential welding method | |
JPS5641095A (en) | Manufacture of steel pipe having projection at inner circumference | |
JPS53116267A (en) | Manufacture of branched pipe joint | |
JPS52126277A (en) | Seam position detecxtion in pipe manufacture | |
JPS5756128A (en) | Manufacture of header for heat exchanger | |
JPS56131094A (en) | Branch pipe welding method | |
JPS5561390A (en) | Butt welding method of stationary pipe | |
JPS52125816A (en) | Pipe connecting method | |
JPS56117898A (en) | Automatic remote welding equipment for piping for narrow space | |
JPS56139224A (en) | Production of oval duct pipe | |
JPS55126325A (en) | Manufacture of circumferential ring for use of construction of cylindrical tank | |
JPS55136572A (en) | Automatic tig welding method of stationary pipe | |
JPS5395850A (en) | Multiple wire submerged arc welding method | |
JPS56168995A (en) | Welding method for piping | |
JPS5656750A (en) | Forging method | |
JPS53142361A (en) | Manufacture of spiral steel pipe | |
JPS5224364A (en) | An automatic fin cutting machine for a spiral fin tube | |
JPS5611194A (en) | Production of steel pipe having projection on inside of circumferential surface | |
JPS53119263A (en) | Welding method for inner plane of steel pipe | |
JPS5425234A (en) | Highly tough welding method using band-shaped electrode | |
JPS54147155A (en) | Manufacture of clad material for use of explosive pressure welding |