JPS57181762A - Underwater plasma cutting method for steel pipe - Google Patents
Underwater plasma cutting method for steel pipeInfo
- Publication number
- JPS57181762A JPS57181762A JP6339081A JP6339081A JPS57181762A JP S57181762 A JPS57181762 A JP S57181762A JP 6339081 A JP6339081 A JP 6339081A JP 6339081 A JP6339081 A JP 6339081A JP S57181762 A JPS57181762 A JP S57181762A
- Authority
- JP
- Japan
- Prior art keywords
- torch
- pipe
- steel pipe
- cut
- cutting method
- 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
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
- B23K10/00—Welding or cutting by means of a plasma
Abstract
PURPOSE:To cut a steel pipe easily and quickly despite the presence of earth and sand, etc. on the outer side of said pipe by arranging the downward angle of a torch and the clearance between the torch and the steel pipe properly. CONSTITUTION:A revolving shaft 15 is made into one body with a rod 16 for supporting a torch and a plasma torch 17 for cutting is suspended down to the required cutting depth in a steel pipe 14 by utilizing a guiding device 18. The torch 17 at the bottom end of the shaft 15 is inclined downward at the prescribed angle by taking the drooping of a melt 20 owing to own-weight during melting into consideration and the clearnance between the torch 17 and the pipe 14 is properly set by taking blowing back into consideration. The pipe 14 is cut in water by the arc heat of the plasma arc, whereby the pipe 14 is cut continuously and speedily despite the presence of earth and sand, etc. on the outer side thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6339081A JPS57181762A (en) | 1981-04-28 | 1981-04-28 | Underwater plasma cutting method for steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6339081A JPS57181762A (en) | 1981-04-28 | 1981-04-28 | Underwater plasma cutting method for steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57181762A true JPS57181762A (en) | 1982-11-09 |
Family
ID=13227919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6339081A Pending JPS57181762A (en) | 1981-04-28 | 1981-04-28 | Underwater plasma cutting method for steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57181762A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02132225A (en) * | 1988-08-11 | 1990-05-21 | Kawasaki Steel Corp | Method for cutting steel pipe and device therefor |
| US5006687A (en) * | 1989-09-29 | 1991-04-09 | Kawasaki Steel Corporation | Method for cutting steel pipe piles |
| US5016046A (en) * | 1988-11-25 | 1991-05-14 | Sharp Kabushiki Kaisha | Automatic exposure device for copying machine |
-
1981
- 1981-04-28 JP JP6339081A patent/JPS57181762A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02132225A (en) * | 1988-08-11 | 1990-05-21 | Kawasaki Steel Corp | Method for cutting steel pipe and device therefor |
| US5016046A (en) * | 1988-11-25 | 1991-05-14 | Sharp Kabushiki Kaisha | Automatic exposure device for copying machine |
| US5006687A (en) * | 1989-09-29 | 1991-04-09 | Kawasaki Steel Corporation | Method for cutting steel pipe piles |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS57181762A (en) | Underwater plasma cutting method for steel pipe | |
| JPS5527418A (en) | Welding or cutting method | |
| FR2369412A1 (en) | Target boring along inclined vertical axis - using elbow and guides above cutter and below stabiliser | |
| JPS53115641A (en) | Automatic branch pipe welding device | |
| JPS55149793A (en) | Flange welding method of vinyl-chloride-lined steel pipe | |
| JPS53130241A (en) | Welding method for manufacture of thick walled steel pipe | |
| JPS57169012A (en) | Repairing device of converter tapping hole and repairing method using said device | |
| JPS53115640A (en) | Automatic branch pipe welding device | |
| JPS5550974A (en) | Arc welding method | |
| JPS53130242A (en) | Welding method for manufacture of thick-walled large diameter welded steel pipe | |
| JPS55103292A (en) | Laser cutting method | |
| KR800001395Y1 (en) | Cooling roller for preventing welding bead | |
| JPS54119345A (en) | Fixing method for dynamo-bracket of bicycle by welding | |
| JPS5561390A (en) | Butt welding method of stationary pipe | |
| JPS5545555A (en) | Welding method of austenitic stainless steel | |
| Tessier et al. | Method and apparatus for laser cutting a hollow metal workpiece | |
| JPS542948A (en) | Mig welding process for special metal | |
| JPS5433244A (en) | Underwater welding method | |
| JPS5645281A (en) | Automatic butt welding method for oblique-cut pipe | |
| JPS5424390A (en) | Device for cutting beads on inner surface of steel pipe | |
| JPS571572A (en) | Arc welding method of thick steel plate | |
| Kalczynski | Methods of Underwater Metal Cutting | |
| JPS5239879A (en) | Method and device for cutting a steel tube pile well curb | |
| JPS5286584A (en) | Apparatus for automatically cutting formed steel | |
| JPS5662701A (en) | Method and device for cutting surface layer of long heat- resistant article |