JPS5639115A - Manufacture of electric welded pipe - Google Patents
Manufacture of electric welded pipeInfo
- Publication number
- JPS5639115A JPS5639115A JP11466979A JP11466979A JPS5639115A JP S5639115 A JPS5639115 A JP S5639115A JP 11466979 A JP11466979 A JP 11466979A JP 11466979 A JP11466979 A JP 11466979A JP S5639115 A JPS5639115 A JP S5639115A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- welded pipe
- edges
- electric
- electric welded
- 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 shorten the distance between the edge heater and the welding point, and to contrive the saving of the electric heating power and the improvement of the quality of electric welded pipe, by employing the die instead of the squeeze roll for butt welding the pipe edges, at manufacturing the electric welded pipe.
CONSTITUTION: The skelp S is passed the breakdown roll, the side roll, the side cluster roll, and the fin pass roll FR, and hereby, the C- or U-type section is formed into the O-type. The O-section's two edges E1, E2, facing each other, pass the induction heating coil C and are brought into the molten state; just after that, the skelp S is passed through the die D, and two edges are butt welded; hereby, the electric welded pipe is manufactured. Because the die D is arranged just after the heater C, the welding point for two edges can be set very near the heater C as compared with the case employing the squeeze roll, the cooling is less effective, so that the electric welded pipe of good quality obtained because of the less oxidization of the alloy metal element in case of the alloy steel, can be manufactured by the saved electric power consumption.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11466979A JPS5639115A (en) | 1979-09-05 | 1979-09-05 | Manufacture of electric welded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11466979A JPS5639115A (en) | 1979-09-05 | 1979-09-05 | Manufacture of electric welded pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5639115A true JPS5639115A (en) | 1981-04-14 |
Family
ID=14643627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11466979A Pending JPS5639115A (en) | 1979-09-05 | 1979-09-05 | Manufacture of electric welded pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5639115A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548704A (en) * | 2009-09-16 | 2012-07-04 | 新日本制铁株式会社 | Welding device for manufacturing electric resistance welded tube |
| US9162268B2 (en) | 2009-09-16 | 2015-10-20 | Nippon Steel & Sumitomo Metal Corporation | Electric-resistance-welded pipe welding apparatus |
-
1979
- 1979-09-05 JP JP11466979A patent/JPS5639115A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548704A (en) * | 2009-09-16 | 2012-07-04 | 新日本制铁株式会社 | Welding device for manufacturing electric resistance welded tube |
| US9162268B2 (en) | 2009-09-16 | 2015-10-20 | Nippon Steel & Sumitomo Metal Corporation | Electric-resistance-welded pipe welding apparatus |
| US10307808B2 (en) | 2009-09-16 | 2019-06-04 | Nippon Steel & Sumitomo Metal Corporation | Electric-resistance-welded pipe welding apparatus |
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