JP2016203234A5 - - Google Patents
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- Publication number
- JP2016203234A5 JP2016203234A5 JP2015091121A JP2015091121A JP2016203234A5 JP 2016203234 A5 JP2016203234 A5 JP 2016203234A5 JP 2015091121 A JP2015091121 A JP 2015091121A JP 2015091121 A JP2015091121 A JP 2015091121A JP 2016203234 A5 JP2016203234 A5 JP 2016203234A5
- Authority
- JP
- Japan
- Prior art keywords
- flux
- sio
- slag
- increases
- addition
- 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.)
- Granted
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- 230000004907 flux Effects 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 239000002893 slag Substances 0.000 description 6
- 239000011324 bead Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 210000003371 Toes Anatomy 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910002551 Fe-Mn Inorganic materials 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N Potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910006639 Si—Mn Inorganic materials 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Description
［鋼製外皮とフラックスの合計でＭｎ：１．５〜２．５％］
Ｍｎは、溶接金属の靭性確保と強度向上のために添加する。Ｍｎが１．５％未満であると、大電流での溶接施工条件でＭｎの消耗が多くなり溶接金属の強度が低く、靭性が十分に確保できなくなる。一方、Ｍｎが２．５％を超えると、溶接金属の靭性が安定して得られない。また、生成スラグ量が増加してスラグ巻込み等の溶接欠陥が発生しやすくなる。従って、鋼製外皮とフラックスの合計でＭｎは１．５〜２．５％とする。なお、Ｍｎは、鋼製外皮に含まれる成分の他、フラックスからの金属Ｍｎ、Ｆｅ−Ｍｎ、Ｆｅ−Ｓｉ−Ｍｎ等の合金粉末から添加できる。
[Mn: 1.5 to 2.5% in total of steel outer shell and flux]
Mn is added to ensure the toughness and improve the strength of the weld metal. If Mn is less than 1.5%, the consumption of Mn increases under welding conditions with a large current, the strength of the weld metal is low, and sufficient toughness cannot be ensured. On the other hand, if Mn exceeds 2.5%, the toughness of the weld metal cannot be obtained stably. In addition, the amount of generated slag increases and welding defects such as slag entrainment tend to occur. Therefore, Mn is 1.5 to 2.5 % in total of the steel outer shell and the flux. In addition, Mn can be added from alloy powders such as metal Mn, Fe—Mn, and Fe—Si—Mn from the flux in addition to the components contained in the steel outer sheath.
［フラックス中に含有するＳｉＯ2：０．０１〜０．２％］
フラックス中のＳｉＯ 2 は、大電流での溶接施工条件において、溶融スラグの粘性を高めてスラグ被包性を向上させてビード止端部のなじみを良好にし、ビード外観・形状を良好にする。ＳｉＯ2が０．０１％未満であると、溶接ビードのビード止端部のなじみが悪くなり、ビード外観・形状が悪くなる。一方、ＳｉＯ2が０．２％を超えると、溶接金属中の酸素量が増加して靭性が低下する。また、スラグ量が多くなり、スラグ巻込み等の溶接欠陥が発生しやすくなる。従って、フラックス中に含有するＳｉＯ2は０．０１〜０．２％とする。なお、ＳｉＯ2は、フラックスからの珪砂、珪酸ソーダ及び珪酸カリウムからなる水ガラスの固質成分等から添加できる。
[SiO 2 contained in flux: 0.01 to 0.2%]
The SiO 2 in the flux increases the viscosity of the molten slag and improves the slag encapsulation property under the welding conditions with a large current to improve the conformity of the bead toe and the bead appearance and shape. When the SiO 2 content is less than 0.01%, the familiarity of the bead toe portion of the weld bead is deteriorated, and the bead appearance and shape are deteriorated. On the other hand, if SiO 2 exceeds 0.2%, the amount of oxygen in the weld metal increases and the toughness decreases. In addition, the amount of slag increases and welding defects such as slag entrainment tend to occur. Thus, SiO 2 contained in the flux is 0.01 to 0.2%. Incidentally, SiO 2 may be added silica sand, from the solid matter component, such as water glass consisting of sodium silicate and potassium silicate from the flux.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015091121A JP6437378B2 (en) | 2015-04-28 | 2015-04-28 | Flux-cored wire for gas shielded arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015091121A JP6437378B2 (en) | 2015-04-28 | 2015-04-28 | Flux-cored wire for gas shielded arc welding |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016203234A JP2016203234A (en) | 2016-12-08 |
| JP2016203234A5 true JP2016203234A5 (en) | 2017-06-29 |
| JP6437378B2 JP6437378B2 (en) | 2018-12-12 |
Family
ID=57488488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015091121A Active JP6437378B2 (en) | 2015-04-28 | 2015-04-28 | Flux-cored wire for gas shielded arc welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6437378B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6863862B2 (en) * | 2017-08-30 | 2021-04-21 | 日鉄溶接工業株式会社 | Flux-filled wire for gas shielded arc welding |
| JP6988323B2 (en) * | 2017-09-27 | 2022-01-05 | 日本製鉄株式会社 | Gas shield arc Welding flux-cored wire and welding joint manufacturing method |
| JP6939508B2 (en) * | 2017-12-19 | 2021-09-22 | 日本製鉄株式会社 | Corrosion-resistant steel gas shield arc welding flux-cored wire and welding joint manufacturing method |
| JP6951313B2 (en) * | 2018-01-16 | 2021-10-20 | 日鉄溶接工業株式会社 | Flux-filled wire for gas shielded arc welding |
| JP6951285B2 (en) * | 2018-03-30 | 2021-10-20 | 日鉄溶接工業株式会社 | Pulse MAG multi-layer welding method |
| JP7221742B2 (en) * | 2019-03-07 | 2023-02-14 | 日鉄溶接工業株式会社 | Pulse MAG multi-layer welding method |
| JP7244399B2 (en) * | 2019-10-31 | 2023-03-22 | 日鉄溶接工業株式会社 | Flux-cored wire for gas-shielded arc welding |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2795992B2 (en) * | 1991-04-09 | 1998-09-10 | 日鐵溶接工業株式会社 | Flux-cored wire for gas shielded arc welding |
| JP3718464B2 (en) * | 2000-09-04 | 2005-11-24 | 日鐵住金溶接工業株式会社 | Flux-cored wire for gas shielded arc welding |
| JP2005279683A (en) * | 2004-03-29 | 2005-10-13 | Jfe Steel Kk | Flux cored wire for gas shielded arc welding |
| JP2005305498A (en) * | 2004-04-21 | 2005-11-04 | Nippon Steel & Sumikin Welding Co Ltd | Flux-cored wire for electrogas arc welding |
| JP5207994B2 (en) * | 2008-03-26 | 2013-06-12 | 日鐵住金溶接工業株式会社 | Metal flux cored wire for Ar-CO2 mixed gas shielded arc welding |
| JP6188621B2 (en) * | 2014-04-10 | 2017-08-30 | 日鐵住金溶接工業株式会社 | Flux-cored wire for carbon dioxide shielded arc welding |
-
2015
- 2015-04-28 JP JP2015091121A patent/JP6437378B2/en active Active
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