JPS5570470A - Welding method of austenite base stainless steel - Google Patents
Welding method of austenite base stainless steelInfo
- Publication number
- JPS5570470A JPS5570470A JP14327978A JP14327978A JPS5570470A JP S5570470 A JPS5570470 A JP S5570470A JP 14327978 A JP14327978 A JP 14327978A JP 14327978 A JP14327978 A JP 14327978A JP S5570470 A JPS5570470 A JP S5570470A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- groove
- weld
- curvature
- flaw detection
- 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
Landscapes
- Arc Welding In General (AREA)
Abstract
PURPOSE: To develop the columnar crystal of weld metal in the material thickness direction and improve the ultrasonic flaw detection characteristic of weld zone by makigng the curvature of groove shape as small as possible and force-cooling the weld zone after welding of each one layer of build-up.
CONSTITUTION: In the shape of a commonly used U-form groove A, its groove angle α is approached to 0° as far as possible and its radius of curvature R is made smallest possible γ, whereby the groove shape B which is applicable to a welding method of less deposited metal amount in one welding of TIG welding or the like and of the curvature of the extent of not producing undeposition is provided. By using this groove B, the weld zone is force cooled during welding or after welding of each one layer of build-up. With this method, weld metal develops its columnar crystal in the plate thickness direction and in the case of selecting the specific ultrasonic wave incident angle, charging of ultrasonic waves becomes easy and the S/N at the flaw detection is improved. This method is applied to the portions requiring ultrasonic flaw detection of the weld zones of vessels and pipings such as of atomic power plants.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14327978A JPS5570470A (en) | 1978-11-22 | 1978-11-22 | Welding method of austenite base stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14327978A JPS5570470A (en) | 1978-11-22 | 1978-11-22 | Welding method of austenite base stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5570470A true JPS5570470A (en) | 1980-05-27 |
Family
ID=15335035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14327978A Pending JPS5570470A (en) | 1978-11-22 | 1978-11-22 | Welding method of austenite base stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5570470A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011020130A (en) * | 2009-07-14 | 2011-02-03 | Nippon Steel Engineering Co Ltd | Butted gas shielded arc weld joint, and butted gas shielded arc welding method |
| CN106695153A (en) * | 2016-12-02 | 2017-05-24 | 中广核工程有限公司 | Narrow U-shaped groove of steel containment of nuclear power station and automatic welding method thereof |
| CN112792441A (en) * | 2021-01-21 | 2021-05-14 | 大连交通大学 | Method and device for generating single longitudinal columnar crystal welding seam |
-
1978
- 1978-11-22 JP JP14327978A patent/JPS5570470A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011020130A (en) * | 2009-07-14 | 2011-02-03 | Nippon Steel Engineering Co Ltd | Butted gas shielded arc weld joint, and butted gas shielded arc welding method |
| CN106695153A (en) * | 2016-12-02 | 2017-05-24 | 中广核工程有限公司 | Narrow U-shaped groove of steel containment of nuclear power station and automatic welding method thereof |
| CN112792441A (en) * | 2021-01-21 | 2021-05-14 | 大连交通大学 | Method and device for generating single longitudinal columnar crystal welding seam |
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