CN105057925B - A kind of fillet welding metal powder core pattern seamless flux-cored wire - Google Patents
A kind of fillet welding metal powder core pattern seamless flux-cored wire Download PDFInfo
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- CN105057925B CN105057925B CN201510457357.7A CN201510457357A CN105057925B CN 105057925 B CN105057925 B CN 105057925B CN 201510457357 A CN201510457357 A CN 201510457357A CN 105057925 B CN105057925 B CN 105057925B
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- welding
- cored wire
- fillet welding
- flux
- metal powder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/3073—Fe as the principal constituent with Mn as next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3608—Titania or titanates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
A kind of fillet welding metal powder core pattern seamless flux-cored wire, the present invention prevents the generation of defect from reduction weld metal diffusible hydrogen content and reduction solder wire formula in terms of slag making agent content two, the present invention is in the horizontal fillet welding of priming paint steel plate, with excellent anti-stomata ability；With preferable low-temperature impact toughness, 20 DEG C of ballistic work average values reach more than 47J；With good welding usability, arc stability during welding, it is easy to form spray transfer, operation is easy, and appearance of weld is good, and slag is few；Flux-cored wire surface can improve conductive capability with copper facing, and wire feed is stable, beneficial to automatic welding；Deposited metal diffusible hydrogen is less than 4ml/100g etc..
Description
【Technical field】
The present invention relates to field of welding material, more particularly to a kind of fillet welding metal powder core pattern seamless flux-cored wire, specifically
It is related to one kind and is adapted to and uses 100%CO2The low-alloy steel fillet welding fillet welding of gas shielded welding inorganic zinc primer and phosphoric acid priming paint is used
Metal powder core pattern seamless flux-cored wire.
【Background technology】
It is known, as flux-cored wire is in the extensive use of the industries such as ship, bridge, in the fillet-welded joint of welded unit
In, the intensifying trend for carrying out semiautomatic welding, desk-top automatic welding and electroplating equipment wielding machine automation using flux-cored wire is got up.But,
Generally prevent steel plate from getting rusty, it is necessary to coat priming paint in advance in steel plate, wherein, it is inorganic zinc primer and phosphoric acid priming paint mostly.Use
When general flux-cored wire carries out the horizontal fillet welding of priming paint steel plate, there are weld defect such as pit, channeling and stomata etc. to produce.
Metal powder type flux-cored wire section has more high current density, therefore brings higher welding efficiency, and has
Multi-pass welding greatly improves the advantage of operating efficiency without scarfing cinder.Metal powder type flux-cored wire has more preferable wetability
And permeability, especially in terms of V-type weld seam and angle welding, incomplete fusion defect tendency, face of weld smooth and beautiful appearance can be reduced.
Chinese patent, Publication No. CN101323057A, publication date are on December 17th, 2008, and patent name is a kind of high
Intensity metal core pattern seamless flux-cored wire, seamless medicine core is used it discloses a kind of yield strength more than the welding of 785MPa low-alloy steel
Welding wire, the welding metal intensity that embodiment is provided is not reaching to 890MPa requirement more than 785Mpa.
Found through retrieval, there is presently no related for using 100%CO2Gas shield, it is adaptable to which band priming paint steel plate is horizontal
The public technology of the metal powder core pattern seamless flux-cored wire of fillet welding.
【The content of the invention】
Not enough present in background technology in order to overcome, the invention provides a kind of fillet welding seamless medicine core of metal powder core pattern
Welding wire, the present invention prevents from lacking from reduction weld metal diffusible hydrogen content and reduction solder wire formula in terms of slag making agent content two
Sunken generation, the present invention has excellent anti-stomata ability, and property indices are excellent.
To realize goal of the invention as described above, the present invention uses technical scheme as described below：
A kind of fillet welding metal powder core pattern seamless flux-cored wire, including crust and medicine core powder, the crust are mild-carbon steel strip,
Intracutaneous outside to be provided with medicine core powder, each component includes following composition by weight in the medicine core powder：
0.08~0.48 part of carbon；
0.8~2.8 part of silicon；
4~12 parts of manganese；
24~70 parts of iron；
TiO212~36 parts；
SiO24~12 parts；
0~2 part of arc stabilizer.
Described fillet welding metal powder core pattern seamless flux-cored wire, the addition form of the carbon is in graphite or ferroalloy
The combination of any one or two kinds.
Described fillet welding metal powder core pattern seamless flux-cored wire, the addition form of the silicon is in ferrosilicon or silicomangan
The combination of any one or two kinds.
Described fillet welding metal powder core pattern seamless flux-cored wire, the addition form of the manganese is ferromanganese or manganese metal or silicon
Any one in manganese alloy or two or more combination.
Described fillet welding metal powder core pattern seamless flux-cored wire, the TiO2Addition form be rutile or titanium dioxide
Or any one in potassium titanate or two or more combination.
Described fillet welding metal powder core pattern seamless flux-cored wire, the arc stabilizer includes Na2O or K2O or NaF or
K2SiF6Or K2ZrF6Or K3AlF6In any one or two or more combination.
Described fillet welding metal powder core pattern seamless flux-cored wire, the filling weight of the medicine core powder accounts for welding wire gross weight
10~25%.
Using technical scheme as described above, have the advantages that：
A kind of fillet welding of the present invention metal powder core pattern seamless flux-cored wire, the present invention spreads from reduction weld metal
Hydrogen content prevents the generation of defect, horizontal stroke of the present invention in priming paint steel plate with two aspects of slag making agent content in reduction solder wire formula
During fillet welding, with excellent anti-stomata ability；With preferable low-temperature impact toughness, -20 DEG C of ballistic work average values reach 47J with
On；With good welding usability, arc stability during welding, it is easy to form spray transfer, operation is easy, and appearance of weld is good,
Slag is few；Flux-cored wire surface can improve conductive capability with copper facing, and wire feed is stable, beneficial to automatic welding；Deposited metal diffusible hydrogen
Less than 4ml/100g etc..
【Embodiment】
The present invention can be explained in more detail by the following examples, the invention is not limited in the following examples；
A kind of fillet welding of the present invention metal powder core pattern seamless flux-cored wire, including crust and medicine core powder, it is described outer
Skin is mild-carbon steel strip, intracutaneous outside to be provided with medicine core powder, and the filling weight of the medicine core powder accounts for the 10~25% of welding wire gross weight, medicine
Each component includes following composition by weight in core powder：
0.08~0.48 part of carbon；0.8~2.8 part of silicon；
4~12 parts of manganese；24~70 parts of iron；
TiO212~36 parts； SiO24~12 parts；
0~2 part of arc stabilizer.
The addition form of wherein described carbon is any one in graphite or ferroalloy or two kinds of combination；The silicon plus
It is any one in ferrosilicon or silicomangan or two kinds of combinations to enter form；The addition form of the manganese be ferromanganese or manganese metal or
Any one in silicomangan or two or more combination；The TiO2Addition form be rutile or titanium dioxide
Or any one in potassium titanate or two or more combination；The arc stabilizer includes Na2O or K2O or NaF or
K2SiF6Or K2ZrF6Or K3AlF6In any one or two or more combination.
Carbon is the important element that solution strengthening ensures deposited metal intensity in the present invention, while certain carbon content can subtract
The splashing of low welding wire short circuiting transfer, the addition form of carbon can be graphite, various ferroalloys, flux-cored wire steel band.Carbon content is small
In 0.08 part it cannot be guaranteed that intensity, carbon content, which is more than 0.48 part of one side, can cause that intensity is too high, low-temperature flexibility declines, the opposing party
Face can deteriorate welding usability.
Silicon is important deoxidant element, while being also intensified element, a certain amount of silicon has for improving intensity and toughness
Important function, but excessive silicon can deteriorate weld metal low-temperature flexibility.Therefore silicone content control is between 0.8~2.8 part.Silicon
Addition form can be ferrosilicon, silicomangan.
Manganese is important deoxidant element, while being also intensified element, a certain amount of manganese can play reduction austenite transformation
Temperature, crystal grain thinning, this plays an important roll for improving intensity and toughness, but excessive manganese can cause intensity too high, dislike
Change low-temperature flexibility, therefore manganese content control is between 4~12 parts.The addition form of manganese can be ferromanganese, manganese metal, silicomanganese conjunction
Gold.
Arc stabilizer includes Na2O、K2O、NaF、K2SiF6、K2ZrF6、K3AlF6、K4O4Ti, it has stabilising arc effect, improves weldering
Connect manufacturability, improve the welding procedure scope for forming spray transfer, thus amount of filling otherwise higher than 2 parts, if dosing excess,
De- slag can be caused difficult.Wherein otherwise the content of fluoride can produce a large amount of splashings no more than 0.40 part.
TiO2：Effect with stabilising arc and slag making, improves the fusing point and viscosity of slag, it is ensured that appearance of weld, therefore dose
Measure otherwise less than 12 parts, otherwise can not reach corresponding effect, if dosed more than 36 parts, de- slag can be caused difficult.Addition
Form can be rutile, titanium dioxide, potassium titanate.
SiO2：Effect with stabilising arc and slag making, improves the fusing point and viscosity of slag, it is ensured that appearance of weld, therefore dose
Measure otherwise less than 4 parts, otherwise can not reach corresponding effect, if dosed more than 12 parts, slag viscosity can be reduced so that be molten
Molten bath can not be completely covered in slag, and appearance of weld is deteriorated.
Iron has regulation filling rate and improves the effect of welding arc stablility, but excessive iron can produce a large amount of fly
Splash.Therefore iron content control is between 24~70 parts.
When carrying out the horizontal fillet welding of priming paint steel plate using general flux-cored wire, there are weld defect such as pit, channeling and gas
Hole etc. is produced, and the reason for producing defect is primarily due to the priming paint on steel plate under the heat effect of electric arc, resolves into H2, CO and
Metallic vapour, a part is escaped between riser and bottom plate in them, and remainder will enter welding pool, if molten bath cooling speed
Spend soon, gas can not be escaped completely, then can form stomata and worm channel in face of weld.Therefore the present invention is in terms of following two
To prevent the generation of defect.One, reduce weld metal diffusible hydrogen content.Two, reduce slag making agent content in solder wire formula.
The present invention has following features：
1st, in the horizontal fillet welding of priming paint steel plate, with excellent anti-stomata ability.
2nd, with preferable low-temperature impact toughness, -20 DEG C of ballistic work average values reach more than 47J,.
3rd, with good welding usability, arc stability during welding, it is easy to form spray transfer, operation is easy, weld seam
Forming, slag is few.
4th, flux-cored wire surface can improve conductive capability with copper facing, and wire feed is stable, beneficial to automatic welding.
5th, deposited metal diffusible hydrogen is low is less than 4ml/100g.
The specific embodiment of the present invention is as follows：
Embodiment 1,2,3 is to be adapted to the metal powder core pattern seamless flux-cored wire with priming paint steel plate high speed horizontal fillet welding, is
Medicinal powder is filled in steel coating, filling medicinal powder weight accounts for the 10~25% of welding wire gross weight.
| Raw material title | Iron | Graphite | SiO2 | Ferrosilicon | Manganese metal | Na2O | K2O | K3AlF6 | Rutile | Potassium titanate | K2ZrF6 |
| Embodiment 1 | 40.55 | 0.25 | 11 | 2.7 | 10 | 0.04 | 0.05 | 0.1 | 35 | 0.3 | 0.01 |
| Embodiment 2 | 56.75 | 0.35 | 8 | 1.4 | 8 | 0.01 | 0.01 | 0. 04 | 25 | 0.4 | 0.04 |
| Embodiment 3 | 64.35 | 0.45 | 6 | 1.7 | 9 | 0.02 | 0.03 | 0. 2 | 18 | 0.2 | 0.05 |
Implementation result example：
To three kinds of welding wires obtained above carry out deposited metal mechanical property test, test plate (panel) groove, size, sampling method with
Position is according to chinese national standard GB/T17493-1998《Low-alloy steel flux-cored wire》Carry out, the protective gas of use and weldering
Connect specification as described below：Protective gas uses 100%CO2, and access DC reverse connection formula power supply is subjected to, embodiment 1,2,3
Welding current 240A~280A, 26~30V of weldingvoltage.Speed of welding 30cm/min, temperature between 150 DEG C of preheating and road is pressed
According to chinese national standard GB/T 3965-1995《Diffusible Hydrogen In Deposited Metal assay method》To the deposited metal diffusible hydrogen of welding
Content is measured, and the performance of each deposited metal is as follows:
Deposited metal mechanical property
Deposited metal diffusible hydrogen ml/100g
| Embodiment 1 | 1.88 |
| Embodiment 2 | 2.08 |
| Embodiment 3 | 3.16 |
As can be seen here, for above-mentioned three kinds formulas, different welding conditions, each embodiment welding wire are used according to national standard
The need for welding can be met, while deposited metal diffusible hydrogen content is respectively less than 4ml/100g deposited metals, every measurement result
The regulation of national technical standard is superior to, in summary, metal powder core pattern seamless flux-cored wire of the invention is in priming paint steel plate
During horizontal fillet welding, with excellent anti-stomata ability, property indices are excellent.
Part not in the detailed description of the invention is prior art.
The embodiment selected herein for the open purpose of the present invention, is presently considered to be suitable.But answer
Solution, it is contemplated that all changes and improvement including all embodiments belonged in this design and invention scope.
Claims (2)
1. a kind of fillet welding metal powder core pattern seamless flux-cored wire, including crust and medicine core powder, it is characterized in that：The crust is low
Carbon steel band, intracutaneous outside to be provided with medicine core powder, each component includes following composition by weight in the medicine core powder：
0.08~0.48 part of carbon；
0.8~2.8 part of silicon；
4~12 parts of manganese；
24~70 parts of iron；
TiO212~36 parts；
SiO24~12 parts；
0~2 part of arc stabilizer；
The addition form of wherein described carbon is any one in graphite or ferroalloy or two kinds of combination；
The addition form of the silicon is any one in ferrosilicon or silicomangan or two kinds of combinations；
The filling weight of the medicine core powder accounts for the 10~25% of welding wire gross weight；
The TiO2Addition form be any one in rutile or titanium dioxide or potassium titanate or two or more group
Close；
The arc stabilizer includes Na2O or K2O or NaF or K2SiF6Or K2ZrF6Or K3AlF6In any one or two kinds or two kinds
Combination above.
2. fillet welding according to claim 1 metal powder core pattern seamless flux-cored wire, it is characterized in that：The addition shape of the manganese
Formula is any one in ferromanganese or manganese metal or silicomangan or two or more combination.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510457357.7A CN105057925B (en) | 2015-07-30 | 2015-07-30 | A kind of fillet welding metal powder core pattern seamless flux-cored wire |
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| CN201510457357.7A CN105057925B (en) | 2015-07-30 | 2015-07-30 | A kind of fillet welding metal powder core pattern seamless flux-cored wire |
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| CN105057925B true CN105057925B (en) | 2017-09-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181128A (en) * | 2016-08-18 | 2016-12-07 | 洛阳双瑞特种合金材料有限公司 | A kind of seamless without copper plated flux-cored wires |
| CN106736048B (en) * | 2016-11-29 | 2019-04-19 | 洛阳双瑞特种合金材料有限公司 | A kind of high-strength weathering steel metal powder core pattern seamless flux-cored wire |
| CN115971721A (en) * | 2022-12-21 | 2023-04-18 | 武汉铁锚焊接材料股份有限公司 | Flux-cored wire with high crack arrest performance and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3730440B2 (en) * | 1999-04-23 | 2006-01-05 | 日鐵住金溶接工業株式会社 | Flux-cored wire for gas shielded arc welding |
| CN100462182C (en) * | 2005-11-24 | 2009-02-18 | 武汉铁锚焊接材料股份有限公司 | Carbon steel cored solder wire for gas-shielded arc welding |
| CN100515655C (en) * | 2007-08-09 | 2009-07-22 | 武汉铁锚焊接材料股份有限公司 | Low alloy steel flux-cored welding wire for carbon dioxide gas protection welding |
| CN101125399A (en) * | 2007-08-27 | 2008-02-20 | 常州华通焊丝有限公司 | Carbon steel flux-cored wire used for gas shield welding |
| CN101450427B (en) * | 2008-12-31 | 2010-10-27 | 宁波隆兴焊割科技股份有限公司 | Metal powder type flux-cored wire for primer steel-plate corner welding |
| JP5409132B2 (en) * | 2009-06-11 | 2014-02-05 | 日鐵住金溶接工業株式会社 | Flux-cored wire for gas shielded arc welding |
| CN102430877A (en) * | 2011-11-04 | 2012-05-02 | 武汉铁锚焊接材料股份有限公司 | Metal powder type flux-cored wire and preparation and application thereof |
| CN103878501A (en) * | 2013-11-29 | 2014-06-25 | 中国船舶重工集团公司第七二五研究所 | Metal-cored seamless flux-cored wire for high-strength steel |
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