JP2012030253A5 - - Google Patents
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- JP2012030253A5 JP2012030253A5 JP2010172139A JP2010172139A JP2012030253A5 JP 2012030253 A5 JP2012030253 A5 JP 2012030253A5 JP 2010172139 A JP2010172139 A JP 2010172139A JP 2010172139 A JP2010172139 A JP 2010172139A JP 2012030253 A5 JP2012030253 A5 JP 2012030253A5
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- welding
- stainless steel
- austenitic stainless
- forming
- steel according
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Description
本発明の各請求項毎の効果は以下の通りとなる。
出願時の請求項１ないし出願時の請求項４に記載の溶接施工方法によれば、裏波ビード表面にＳｉ酸化被膜を形成することにより溶接面を外気から遮断し、溶接金属をバックシールドガスで大気から遮断する必要が無く、健全な裏波ビードが得られることとなる。
The effect of each claim of the present invention is as follows.
According to claims 1 as filed on welding method according to claim 4 as filed, blocking the welding surface from the ambient air by forming a Si oxide film on the penetration bead surface, the weld metal back shield gas Therefore, it is not necessary to cut off from the atmosphere, and a healthy backside bead can be obtained.
出願時の請求項５に記載の溶接施工方法によれば、ティグ溶接による片側溶接工法において、Ｓｉ含有量の多い溶加棒を使用して溶接するか、又は、Ｓｉ含有量の多いフラックスを溶剤と混合したものを開先面に塗布した後にＳｉ含有量の多い溶加棒を使用して溶接することによりＳｉの酸化被膜を形成し、バックシールドガスを使用すること無く溶接金属の裏波ビード表面を大気から遮断し、健全な裏波ビードが得られることとなる。 According to the welding construction method according to claim 5 at the time of filing, in the one-side welding method by TIG welding, welding is performed using a filler rod having a high Si content, or a flux having a high Si content is used as a solvent. After applying the mixture to the groove surface, welding is performed using a filler rod with a high Si content to form a Si oxide film, and the back metal bead of weld metal is used without using a back shield gas. The surface is shielded from the atmosphere, and a healthy back bead is obtained.
Claims (4)
重量％でシリコン（Ｓｉ）を０．６５％〜１．５０％含むオーステナイト系ステンレス鋼の溶接用溶加棒をステンレス鋼の溶接施工部において溶解する工程、
前記範囲のＳｉを含む溶融池を前記溶接施工部に形成する工程、
前記溶融池から裏波ビードを形成するとともに、該裏波ビードの表面にＳｉの酸化被膜を形成する工程、
を有することを特徴とするオーステナイト系ステンレス鋼の裏波溶接施工方法。
A back-welding method for austenitic stainless steel that does not use backshield gas,
Melting a welding rod for austenitic stainless steel containing 0.65% to 1.50% of silicon (Si) by weight% at a welded portion of stainless steel;
Forming a weld pool containing Si in the range in the welding construction part;
Forming a backside bead from the molten pool and forming a Si oxide film on the surface of the backside bead;
A back wave welding method for austenitic stainless steel, characterized by comprising:
2. The austenitic stainless steel according to claim 1, further comprising a step of providing a groove surface in the welding portion and applying a mixture of a flux containing Si of 60% or more by weight with a solvent to the groove surface. Welding method.
The welding construction method of austenitic stainless steel according to claim 1 or 2, wherein the welding target is first layer welding.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010172139A JP5410382B2 (en) | 2010-07-30 | 2010-07-30 | Welding method for austenitic stainless steel |
| PCT/JP2011/067080 WO2012014932A1 (en) | 2010-07-30 | 2011-07-27 | Method for welding austenitic stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010172139A JP5410382B2 (en) | 2010-07-30 | 2010-07-30 | Welding method for austenitic stainless steel |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012030253A JP2012030253A (en) | 2012-02-16 |
| JP2012030253A5 true JP2012030253A5 (en) | 2013-08-01 |
| JP5410382B2 JP5410382B2 (en) | 2014-02-05 |
Family
ID=45530136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010172139A Active JP5410382B2 (en) | 2010-07-30 | 2010-07-30 | Welding method for austenitic stainless steel |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5410382B2 (en) |
| WO (1) | WO2012014932A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513949A (en) * | 2016-11-14 | 2017-03-22 | 苏州热工研究院有限公司 | Non-filling argon protective butt welding method suitable for inner walls of small and medium-diameter austenitic stainless steel pipes |
| CN108941959A (en) * | 2018-08-14 | 2018-12-07 | 上海空间推进研究所 | A kind of method of accurate control Φ 3mm stainless steel pipe argonaut welding forming quality |
| CN109702382B (en) * | 2018-12-27 | 2021-04-02 | 中国原子能科学研究院 | Welding material suitable for long-time service under high-temperature condition and welding method thereof |
| KR102146475B1 (en) * | 2019-01-08 | 2020-08-21 | 주식회사조흥기계 | Method For Manufacturing Mold For Ice Bar |
| CN111618400B (en) * | 2020-03-13 | 2022-02-11 | 中国电建集团山东电力建设第一工程有限公司 | Tower type photo-thermal power generation fused salt pipeline welding process in alpine region |
| TWI740748B (en) * | 2020-12-15 | 2021-09-21 | 國立屏東科技大學 | Tig welding flux for dissimilar steels |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6047039B2 (en) * | 1979-02-16 | 1985-10-19 | 新日本製鐵株式会社 | Filler rod for TIG welding |
| JPS55109595A (en) * | 1979-02-16 | 1980-08-23 | Nippon Steel Corp | Filler rod for tig welding |
| JPS61154793A (en) * | 1984-12-27 | 1986-07-14 | Kobe Steel Ltd | Filler metal for tig welding |
| JP2762658B2 (en) * | 1990-03-06 | 1998-06-04 | 日本鋼管株式会社 | Flux composite wire for TIG welding of austenitic stainless steel for ultra-high vacuum equipment |
| JP2001025865A (en) * | 1999-07-09 | 2001-01-30 | Ishikawajima Harima Heavy Ind Co Ltd | Welding method of small diameter tube |
-
2010
- 2010-07-30 JP JP2010172139A patent/JP5410382B2/en active Active
-
2011
- 2011-07-27 WO PCT/JP2011/067080 patent/WO2012014932A1/en active Application Filing
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