JPS577394A - Butt-welding equipment for welding at inside surface of fixed steel pipe - Google Patents
Butt-welding equipment for welding at inside surface of fixed steel pipeInfo
- Publication number
- JPS577394A JPS577394A JP7831580A JP7831580A JPS577394A JP S577394 A JPS577394 A JP S577394A JP 7831580 A JP7831580 A JP 7831580A JP 7831580 A JP7831580 A JP 7831580A JP S577394 A JPS577394 A JP S577394A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- carriage
- steel pipe
- inside surface
- operated
- 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 improve an efficiency of butt-welding operation at inside surface of fixed steel pipes and the quality of welded steel pipe as well, by mounting a welding unit on a carriage which has a specific construction capable of properly changing a distance between its front and rear wheel axles and a free caster wheel as its rear wheel.
CONSTITUTION: After a lever is set at its horizontal position, a front wheel 38 of the carriage is drawn out of a frame 37' together with a bearing body 41 and a sliding part 41' and then, a hydraulic jack 36 and manually operated jacks 43, 44, (45) equipped with at the flank of the carriage are released so that the carriage can move along inside surface of steel pipe to be welded. After the welding equipment is moved to the vicinity of a welding groove 2, manual jacks 43, 44, (45) are operated so that the front and rear wheels 38, 40 can be lifted up from the inside surface of steel pipe 1 and then, the oil hydraulic jack 36 is operated so as to fix the position of the welding equipment. After that, the bearing body 41 is pushed into a carriage body 37 so that the front wheel 38 can be retreated from the above of the groove 2 and an air cylinder 28 is operated so that the driving wheel as well as a spacer plate made of copper will be pushed onto the inside surface of steel pipe to start the welding operation. After the completion of the welding operation, the front 38 is drawn out of the carriage body 37 and manual jacks 43, 44, (45) as well as oil hydraulic jack 36 are all set loose and then, the welding equipment is transferred to another groove position.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7831580A JPS577394A (en) | 1980-06-12 | 1980-06-12 | Butt-welding equipment for welding at inside surface of fixed steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7831580A JPS577394A (en) | 1980-06-12 | 1980-06-12 | Butt-welding equipment for welding at inside surface of fixed steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS577394A true JPS577394A (en) | 1982-01-14 |
Family
ID=13658499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7831580A Pending JPS577394A (en) | 1980-06-12 | 1980-06-12 | Butt-welding equipment for welding at inside surface of fixed steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS577394A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100808916B1 (en) | 2006-10-10 | 2008-03-07 | 웰텍 주식회사 | Device for welding inside-jointing portion of large caliber steel pipes |
| KR101045456B1 (en) | 2002-11-04 | 2011-06-30 | 솔루티아인코포레이티드 | Functional fluid compositions containing erosion inhibitors |
-
1980
- 1980-06-12 JP JP7831580A patent/JPS577394A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101045456B1 (en) | 2002-11-04 | 2011-06-30 | 솔루티아인코포레이티드 | Functional fluid compositions containing erosion inhibitors |
| KR100808916B1 (en) | 2006-10-10 | 2008-03-07 | 웰텍 주식회사 | Device for welding inside-jointing portion of large caliber steel pipes |
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