JPS5611194A - Production of steel pipe having projection on inside of circumferential surface - Google Patents
Production of steel pipe having projection on inside of circumferential surfaceInfo
- Publication number
- JPS5611194A JPS5611194A JP8765179A JP8765179A JPS5611194A JP S5611194 A JPS5611194 A JP S5611194A JP 8765179 A JP8765179 A JP 8765179A JP 8765179 A JP8765179 A JP 8765179A JP S5611194 A JPS5611194 A JP S5611194A
- Authority
- JP
- Japan
- Prior art keywords
- steel strip
- wound
- spiral shape
- welded
- circumferential surface
- 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
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
PURPOSE: To continuously weld the mutually contacting end faces and improve the production efficiency of steel pipes having projections on the inside of circumferential surface by winding a steel strip into a spiral shape while welding a wirelike body on one side in its lengthwise direction.
CONSTITUTION: While a steel strip 1 is being fed into the direction of arrow A, an automatic welding device 3 is operated. Next, the tip of the wirelike body 4 wound on a reel 5 is welded onto one side in the lengthwise direction of the steel strip 1. Thence, the wirelike body 4 is pulled out from the reel 5 by way of press rollers 6 and guide rollers 7 along with the progression of the steel strip 1, and is thereby welded. Thence, with the side welded with the wirelike body 4 being brought on the inside circumferential side, the steel strip is wound into a spiral shape. The contact position P of the end edge of the steel strip 1 having been wound in a spiral shape and the end edge of the steel strip 1 to be wound into a spiral shape is continuously welded by the automatic welding device.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8765179A JPS5611194A (en) | 1979-07-10 | 1979-07-10 | Production of steel pipe having projection on inside of circumferential surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8765179A JPS5611194A (en) | 1979-07-10 | 1979-07-10 | Production of steel pipe having projection on inside of circumferential surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5611194A true JPS5611194A (en) | 1981-02-04 |
Family
ID=13920860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8765179A Pending JPS5611194A (en) | 1979-07-10 | 1979-07-10 | Production of steel pipe having projection on inside of circumferential surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5611194A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105091A (en) * | 1983-11-11 | 1985-06-10 | 飯田 勧 | Ticket vending machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5038123A (en) * | 1973-07-05 | 1975-04-09 |
-
1979
- 1979-07-10 JP JP8765179A patent/JPS5611194A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5038123A (en) * | 1973-07-05 | 1975-04-09 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105091A (en) * | 1983-11-11 | 1985-06-10 | 飯田 勧 | Ticket vending machine |
| JPH0364917B2 (en) * | 1983-11-11 | 1991-10-08 | Susumu Iida |
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