JPS5460256A - Gas cutting of welded steel pipe - Google Patents
Gas cutting of welded steel pipeInfo
- Publication number
- JPS5460256A JPS5460256A JP12567977A JP12567977A JPS5460256A JP S5460256 A JPS5460256 A JP S5460256A JP 12567977 A JP12567977 A JP 12567977A JP 12567977 A JP12567977 A JP 12567977A JP S5460256 A JPS5460256 A JP S5460256A
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- gas
- steel pipe
- steel plate
- notches
- 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
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/005—Machines, apparatus, or equipment specially adapted for cutting curved workpieces, e.g. tubes
- B23K7/006—Machines, apparatus, or equipment specially adapted for cutting curved workpieces, e.g. tubes for tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
PURPOSE:To facilitate gas outting of welded steel pipe, the steel plate is, at each cutting size, processed before it is formed into a cylinder in such a way that slit- type notches are provided from welding groove face in the cutting direction. CONSTITUTION:In a typical application, a steel plate 5 is gas cut to make notches 6 from welding groove face in size of 1 long by S wide, at each cutting size. Then the steel plate 5 is formed by using roll into a cylinder, then the formed steel pipe 11 is subjected to gas cutting, starting from the notched portions 12. The process avoids filling of the notches 12 during welding to facilitate the gas cutting of the welded pipe 11 and further eliminates the starting hole process and large surplus margin for cutting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12567977A JPS5460256A (en) | 1977-10-21 | 1977-10-21 | Gas cutting of welded steel pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12567977A JPS5460256A (en) | 1977-10-21 | 1977-10-21 | Gas cutting of welded steel pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5460256A true JPS5460256A (en) | 1979-05-15 |
Family
ID=14915975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12567977A Pending JPS5460256A (en) | 1977-10-21 | 1977-10-21 | Gas cutting of welded steel pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5460256A (en) |
-
1977
- 1977-10-21 JP JP12567977A patent/JPS5460256A/en active Pending
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