JPS5770097A - Structure of butt welded joint of pipe - Google Patents
Structure of butt welded joint of pipeInfo
- Publication number
- JPS5770097A JPS5770097A JP14580280A JP14580280A JPS5770097A JP S5770097 A JPS5770097 A JP S5770097A JP 14580280 A JP14580280 A JP 14580280A JP 14580280 A JP14580280 A JP 14580280A JP S5770097 A JPS5770097 A JP S5770097A
- Authority
- JP
- Japan
- Prior art keywords
- outside
- welded joint
- weld metal
- butt welded
- butt
- 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
- 239000002184 metal Substances 0.000 abstract 3
- 229910001566 austenite Inorganic materials 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 229910001026 inconel Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
Landscapes
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
PURPOSE: To provide the structure of a butt welded joint of pipes generated with residual compressive stress or decreased with residual tensile stress in the inside and outside surfaces of the weld zone by using a material of the small thermal expansion coefft. for at least one of the inside and outside circumferences of weld metal.
CONSTITUTION: In welding of the butt groove of austenite stainless steel pipes 3 or the like, inconel which has the thermal expansion coefft. smaller than that of the adjacent other weld metal 2 is used for a root pass 1 and a final pass 4, and a coated electrode is used for the intermediate passes of the 2nd and subsequent layers, whereby the butt welded joint is manufatured. It is so formed that the sectional area of at least one of the inside and outside circumferential part in the groove section is made smaller than the sectional area of the adjacent weld metal. With this joint construction, residual compressive stress is formed in the inside surface of the weld zone in an as welded state, and low residual tensile stress is obtained in the outside surface as well.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14580280A JPS5770097A (en) | 1980-10-20 | 1980-10-20 | Structure of butt welded joint of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14580280A JPS5770097A (en) | 1980-10-20 | 1980-10-20 | Structure of butt welded joint of pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5770097A true JPS5770097A (en) | 1982-04-30 |
Family
ID=15393484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14580280A Pending JPS5770097A (en) | 1980-10-20 | 1980-10-20 | Structure of butt welded joint of pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5770097A (en) |
-
1980
- 1980-10-20 JP JP14580280A patent/JPS5770097A/en active Pending
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