JPS54155965A - Manufacture of spirally welded steel pipe - Google Patents
Manufacture of spirally welded steel pipeInfo
- Publication number
- JPS54155965A JPS54155965A JP6442678A JP6442678A JPS54155965A JP S54155965 A JPS54155965 A JP S54155965A JP 6442678 A JP6442678 A JP 6442678A JP 6442678 A JP6442678 A JP 6442678A JP S54155965 A JPS54155965 A JP S54155965A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- steel sheets
- faces
- worked
- steel pipe
- 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
Abstract
PURPOSE: To make possible the manufacture of steel pipe at doubled producibility, by welding into one body the end face of the side edge of two steel sheets of the same breadth being uncoiled from two coiled steel sheets, after that, by forming into the spirally welded steel pipe.
CONSTITUTION: Two steel sheets 1a, 1'a, of the same breadth being uncoiled from two coiled steel sheets 1, 1', by the pinch rolls 2, 2', are respectively worked at their edge faces by the edge trimmer 19; after that, adjoining side edge faces are fed into the roller leveler 3 under the condition that their side edge faces are joined each other; then, the end faces of the preceding sheet and the following sheet are welded by the welder 4' for joining the sheet, and also, the joined end faces of following two sheets 1a, 1'a, are continuously welded into one body. Next, the steel sheet of doubled breadth is worked like as the conventional method by the edge processing units 8, 8', etc., and is fed to the spiral pipe former 11; in which the sheet is formed into the spiral shape, and is worked with the specified welding 14; etc., into the product 17.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6442678A JPS54155965A (en) | 1978-05-31 | 1978-05-31 | Manufacture of spirally welded steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6442678A JPS54155965A (en) | 1978-05-31 | 1978-05-31 | Manufacture of spirally welded steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54155965A true JPS54155965A (en) | 1979-12-08 |
Family
ID=13257934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6442678A Pending JPS54155965A (en) | 1978-05-31 | 1978-05-31 | Manufacture of spirally welded steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54155965A (en) |
-
1978
- 1978-05-31 JP JP6442678A patent/JPS54155965A/en active Pending
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