JPS57193295A - Welding method for end part of pipe - Google Patents
Welding method for end part of pipeInfo
- Publication number
- JPS57193295A JPS57193295A JP56078893A JP7889381A JPS57193295A JP S57193295 A JPS57193295 A JP S57193295A JP 56078893 A JP56078893 A JP 56078893A JP 7889381 A JP7889381 A JP 7889381A JP S57193295 A JPS57193295 A JP S57193295A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- hole
- plug
- welding
- stopper
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/00 - B23K28/00
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/00 - B23K28/00 relating to soldering or welding
- B23K31/027—Making tubes by soldering or welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
PURPOSE:To prevent generation of defects such as blisters, pinholes, undercuts and the like in weld zones by fitting an end plug having a small through-hole into one end prt of a pipe, evacuating the pipe inside through the small hole and welding the pipe and the end plug. CONSTITUTION:End plugs 19 are fitted into both end parts of a coated pipe 1 and the pipe 1 is inserted into a rotary holding mechanism 17. It is inserted into a welding chamber 12 until the plug 19 abuts on a stopper 23. The small through-hole 20 of the plug 19 and the communicating hole 29 of the stopper 23 are communicated by this. When a vacuum pump 30 is operated, the inside of the pipe 1 is evacuated. Then, an electrode 22 for welding is controlled of its movement and an inert gas is injected through the electrode 22 and is filled in the chamber 12. The pipe 1 and the stopper 23 are rotated by the mechanism 17. Electric current is flowed to the electrode 22 to weld the butted part of the plug 19 and the pipe 1. After the welding, an inert gas is filled by pressure through the hole 20 into the pipe 1 to seal the hole 20 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56078893A JPS57193295A (en) | 1981-05-25 | 1981-05-25 | Welding method for end part of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56078893A JPS57193295A (en) | 1981-05-25 | 1981-05-25 | Welding method for end part of pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57193295A true JPS57193295A (en) | 1982-11-27 |
| JPS6150073B2 JPS6150073B2 (en) | 1986-11-01 |
Family
ID=13674487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56078893A Granted JPS57193295A (en) | 1981-05-25 | 1981-05-25 | Welding method for end part of pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57193295A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511075A (en) * | 1983-03-01 | 1985-04-16 | Westinghouse Electric Corp. | Welding nuclear reactor fuel rod end plugs |
| CN103753035A (en) * | 2013-12-17 | 2014-04-30 | 西安轨道交通装备有限责任公司 | Connecting method for heat preservation shell of asphalt truck |
-
1981
- 1981-05-25 JP JP56078893A patent/JPS57193295A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511075A (en) * | 1983-03-01 | 1985-04-16 | Westinghouse Electric Corp. | Welding nuclear reactor fuel rod end plugs |
| CN103753035A (en) * | 2013-12-17 | 2014-04-30 | 西安轨道交通装备有限责任公司 | Connecting method for heat preservation shell of asphalt truck |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6150073B2 (en) | 1986-11-01 |
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