JPS5548491A - Penetration forming welding method for large-diameter steel tube - Google Patents
Penetration forming welding method for large-diameter steel tubeInfo
- Publication number
- JPS5548491A JPS5548491A JP11932578A JP11932578A JPS5548491A JP S5548491 A JPS5548491 A JP S5548491A JP 11932578 A JP11932578 A JP 11932578A JP 11932578 A JP11932578 A JP 11932578A JP S5548491 A JPS5548491 A JP S5548491A
- Authority
- JP
- Japan
- Prior art keywords
- route
- inert gas
- steel tube
- welding method
- diameter steel
- 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 make back weld penetration even by carrying out welding by flowing inert gas through a hollow, by forming a hollow route by butting groove faces mutually.
CONSTITUTION: Route surfaces 2 of groove faces of large-diameter pipes 1 and 1' are butted each other to form route 3. Next, while inert gas is flowed through route 3, arc 6 is generated by tungsten electrode 5 of TIG torch 4, thereby welding the both. At this time, the back penetration states of internal surfaces of pipes 1 and 1' are controlled by adjusting the feed amount of inert gas flowing through route 3.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11932578A JPS5548491A (en) | 1978-09-29 | 1978-09-29 | Penetration forming welding method for large-diameter steel tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11932578A JPS5548491A (en) | 1978-09-29 | 1978-09-29 | Penetration forming welding method for large-diameter steel tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5548491A true JPS5548491A (en) | 1980-04-07 |
Family
ID=14758664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11932578A Pending JPS5548491A (en) | 1978-09-29 | 1978-09-29 | Penetration forming welding method for large-diameter steel tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5548491A (en) |
-
1978
- 1978-09-29 JP JP11932578A patent/JPS5548491A/en active Pending
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