JPS55128383A - Production of electric welded tube - Google Patents
Production of electric welded tubeInfo
- Publication number
- JPS55128383A JPS55128383A JP3651279A JP3651279A JPS55128383A JP S55128383 A JPS55128383 A JP S55128383A JP 3651279 A JP3651279 A JP 3651279A JP 3651279 A JP3651279 A JP 3651279A JP S55128383 A JPS55128383 A JP S55128383A
- Authority
- JP
- Japan
- Prior art keywords
- edges
- thickness
- steel strip
- width direction
- mutually
- 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.)
- Pending
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To prevent the reduction in thickness in the seam part of the tube by pressing the both side edge parts of a steel strip to the central side in the width direction to increase the thickness of the edge part then curving the steel strip to cylindrical form and welding the mutually butted both side edges.
CONSTITUTION: A steel strip S is fed between upset rolls 2 and pressing force in the width direction is applied to the central part side from the both edges E, E to increase the thickness of the both side edges E, E and their neighborhood. Next, the steel strip S in this state is fed to forming roll groups 3 and during the time it passes in the roll groups 3, the section in its width direction is curved from C-form to U- form and further approximately to O, by which the edges E, E are mutually opposed. Next, the mutually opposing edges E, E are heated to melt by a welder 4 and the edges E, E are mutually butted to each other by a squeeze roll 5, after which welding is done. Next, the build-up part of the protruding flight at the bead part and thickness-increased part is cut off, whereby it is finely shaped to the seam part having smooth inside and outside circumferences.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3651279A JPS55128383A (en) | 1979-03-27 | 1979-03-27 | Production of electric welded tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3651279A JPS55128383A (en) | 1979-03-27 | 1979-03-27 | Production of electric welded tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55128383A true JPS55128383A (en) | 1980-10-04 |
Family
ID=12471875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3651279A Pending JPS55128383A (en) | 1979-03-27 | 1979-03-27 | Production of electric welded tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55128383A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59199184A (en) * | 1983-04-28 | 1984-11-12 | Sumitomo Metal Ind Ltd | High-frequency butt welding method |
| JPS62252685A (en) * | 1986-04-24 | 1987-11-04 | Nippon Kokan Kk <Nkk> | Manufacture of seam welded pipe |
| CN103223554A (en) * | 2013-05-06 | 2013-07-31 | 姚雪飞 | Stirring and friction welding device |
| JP2015147239A (en) * | 2014-02-07 | 2015-08-20 | Ｊｆｅスチール株式会社 | Method for production of electric resistance welded steel tube |
-
1979
- 1979-03-27 JP JP3651279A patent/JPS55128383A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59199184A (en) * | 1983-04-28 | 1984-11-12 | Sumitomo Metal Ind Ltd | High-frequency butt welding method |
| JPH0369635B2 (en) * | 1983-04-28 | 1991-11-01 | Sumitomo Metal Ind | |
| JPS62252685A (en) * | 1986-04-24 | 1987-11-04 | Nippon Kokan Kk <Nkk> | Manufacture of seam welded pipe |
| JPH0438516B2 (en) * | 1986-04-24 | 1992-06-24 | ||
| CN103223554A (en) * | 2013-05-06 | 2013-07-31 | 姚雪飞 | Stirring and friction welding device |
| CN103223554B (en) * | 2013-05-06 | 2016-04-13 | 姚雪飞 | Agitating friction welder |
| JP2015147239A (en) * | 2014-02-07 | 2015-08-20 | Ｊｆｅスチール株式会社 | Method for production of electric resistance welded steel tube |
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