JPS5719195A - Welding method for pipe end - Google Patents
Welding method for pipe endInfo
- Publication number
- JPS5719195A JPS5719195A JP9373080A JP9373080A JPS5719195A JP S5719195 A JPS5719195 A JP S5719195A JP 9373080 A JP9373080 A JP 9373080A JP 9373080 A JP9373080 A JP 9373080A JP S5719195 A JPS5719195 A JP S5719195A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- fitting
- plate
- contact
- welding
- 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 reduce blowhole phenomena and prevent the damaging of a centering fitting and the irregularity of weld bead shapes by expanding only the end of a pipe in contact with the welding side part of a pipe plate.
CONSTITUTION: Pipe expanding length l is restricted as far as possible to only the end part in contact with the welding side of a pipe plate 1, by which a pipe 2 and the plate 1 are tack welded. In this state, a centering fitting 4 is inserted into the unexpanded part of the pipe 2 and the pipe is center aligned by this, thence the pipe plate 1 and the end of the pipe 2 are welded by a welding machine 3. Thereafter, the pipe 2 is expanded over the entire width of the plate 1 in accordance with need. According to this method, the contact between the fitting 4 and weld beads is eliminated and since the welding arc 5 is apart from the fitting 4, the damages of the fitting 4 are reduced and beads are uniformalized.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9373080A JPS5719195A (en) | 1980-07-09 | 1980-07-09 | Welding method for pipe end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9373080A JPS5719195A (en) | 1980-07-09 | 1980-07-09 | Welding method for pipe end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5719195A true JPS5719195A (en) | 1982-02-01 |
Family
ID=14090520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9373080A Pending JPS5719195A (en) | 1980-07-09 | 1980-07-09 | Welding method for pipe end |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5719195A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714670A (en) * | 2021-08-13 | 2021-11-30 | 中国地质科学院勘探技术研究所 | Vertical butt joint lowering method for expansion pipe |
-
1980
- 1980-07-09 JP JP9373080A patent/JPS5719195A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714670A (en) * | 2021-08-13 | 2021-11-30 | 中国地质科学院勘探技术研究所 | Vertical butt joint lowering method for expansion pipe |
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