CN102350597A - Flux-cored wire for low alloy high strength ship steel - Google Patents
Flux-cored wire for low alloy high strength ship steel Download PDFInfo
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- CN102350597A CN102350597A CN2011103288464A CN201110328846A CN102350597A CN 102350597 A CN102350597 A CN 102350597A CN 2011103288464 A CN2011103288464 A CN 2011103288464A CN 201110328846 A CN201110328846 A CN 201110328846A CN 102350597 A CN102350597 A CN 102350597A
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Abstract
The invention discloses a flux-cored wire for low alloy high strength ship steel. The wire comprises the following components by weight percent: 30-50% of rutile, 5-8% of calcium oxide, magnesium oxide or a mixture of calcium oxide and magnesium oxide, 2-6% of potassium feldspar, 2-5% of one or more of sodium fluoride, sodium cryolite and potassium cryolite, 2-6% of zircon sand, 0-2% of Cr converted from alloy powder containing chromium, 15-20% of Mn converted from alloy powder containing manganese, 0-3% of Mo converted from alloy powder containing molybdenum, 0-3% of V converted from alloy powder containing vanadium, 0-3% of Nb converted from alloy powder containing niobium, 0-1% of B converted from alloy powder containing boron, 0-5% of rare earth alloy powder, 2-6% of ferrotitanium, 2-4% of nickel powder and the balance of ferrous powder. The flux-cored wire has the following advantage: the mechanical property of the flux-cored wire is improved.
Description
Technical field
The present invention relates to the welding technology field of steel, the high-strength hull steel flux-cored wire of particularly a kind of low-alloy is applicable to ship plate 100% CO of tensile strength greater than 800Mpa
2Or 80%Ar+20%CO
2Full position gas welding.
Background technology
At present domestic engineering machinery improves constantly with the intensity rank of steel; The range of application of other steel plate of high-strength level such as Q690～Q800 progressively enlarges; But the market supply of the welding material that matches with high-strength plate is less; And Gong Ying supporting welding material exists welding joint mechanical property relatively poor in the market; The percentage elongation that is weld metal is lower; Low-temperature impact toughness is low, particularly is directed against boats and ships and ocean engineering with cut deal (the good flux-cored wire of 10～25mm) low-alloy high-strength steel welding procedure processing performances.
Summary of the invention
The objective of the invention is provides a kind of mechanical property that improves flux-cored wire in order to overcome above deficiency, selects the high-strength hull steel flux-cored wire of low-alloy of polynary microalloy in the weld seam for use.
The present invention realizes through following technical scheme: the high-strength hull steel flux-cored wire of a kind of low-alloy, and said welding wire comprises by weight percentage:
Rutile: 30～50%;
Calcium oxide or magnesia or two kinds of mixtures: 5～8%;
Potassic feldspar: 2～6%;
One or more mixtures in sodium fluoride, sodium cryolite, the elpasolite: 2～5%;
Zircon sand: 2～6%;
The alloyed powder that contains chromium is amounted to into Cr:0～2%;
The alloyed powder that contains manganese is amounted to into Mn:15～20%;
The alloyed powder that contains molybdenum is amounted to into Mo:0～2%;
The alloyed powder that contains vanadium is amounted to V:0～3%;
The alloyed powder that contains niobium is amounted to Nb:0～3%;
The boron-containing alloy powder is amounted to B:0～1%;
Rare earth alloy: 0～5%;
Ferrotianium: 2～6%;
Nickel powder: 2～4%;
Surplus is an iron powder.
Further improvement of the present invention is: the said alloyed powder that contains chromium is the mixture of chromic carbide iron powder or hafnium metal powfer or two kinds.
Further improvement of the present invention is: the said alloyed powder that contains manganese is that low Carbon Manganese iron powder or manganese powder or manganese silicon contain bronze or two or more mixture.
Further improvement of the present invention is: the said alloyed powder that contains molybdenum is the mixture of molybdenum-iron powder or metal molybdenum powder or two kinds.
Further improvement of the present invention is: the said alloyed powder that contains vanadium is a vanadium iron powder.
Further improvement of the present invention is: the said alloyed powder that contains niobium is the ferro-niobium powder.
Further improvement of the present invention is: said boron-containing alloy powder is the ferro-boron powder.
Further improvement of the present invention is: the nickel rare-earth metal powder of said rare earth alloy for existing with nickel bag rare earth form.
The present invention compared with prior art has the following advantages: flux-cored wire is the acid slag system of lime-titania type; Processing performance is good during all position welding; Rare earth adds with the form of nickel bag rare earth; Guarantee that most of rare earth element carries out metallurgical reaction at welding pool; Improve the degree of purity of weld metal greatly; Adopt polynary microalloy; Make weld metal have excellent mechanical property; The comprehensive function of The above results makes flux-cored wire of the present invention be applicable to weld strength rank thick deck of boat in the above low-alloy high-strength steel of 800Mpa.
The specific embodiment:
In order to deepen to understanding of the present invention, will combine embodiment that the present invention is made further detailed description below, the following example only is used to explain the present invention, does not constitute the qualification to protection domain of the present invention.
The present invention shows the embodiment of the high-strength hull steel flux-cored wire of a kind of low-alloy, and said welding wire comprises by weight percentage:
Rutile: 30～50%;
Calcium oxide or magnesia or two kinds of mixtures: 5～8%;
Potassic feldspar: 2～6%;
One or more mixtures in sodium fluoride, sodium cryolite, the elpasolite: 2～5%;
Zircon sand: 2～6%;
The alloyed powder that contains chromium is amounted to into Cr:0～2%;
The alloyed powder that contains manganese is amounted to into Mn:15～20%;
The alloyed powder that contains molybdenum is amounted to into Mo:0～2%;
The alloyed powder that contains vanadium is amounted to V:0～3%;
The alloyed powder that contains niobium is amounted to Nb:0～3%;
The boron-containing alloy powder is amounted to B:0～1%;
Rare earth alloy powder: 0～5%;
Ferrotianium: 2～6%;
Nickel powder: 2～4%;
Surplus is an iron powder.
The said alloyed powder that contains chromium is the mixture of chromic carbide iron powder or hafnium metal powfer or two kinds; The alloyed powder that contains manganese is that low Carbon Manganese iron powder or manganese powder or manganese silicon contain bronze or two or more mixture; The alloyed powder that contains molybdenum is the mixture of molybdenum-iron powder or metal molybdenum powder or two kinds; The alloyed powder that contains vanadium is a vanadium iron powder; The alloyed powder that contains niobium is the ferro-niobium powder; The boron-containing alloy powder is the ferro-boron powder, the nickel rare-earth metal powder of rare earth alloy for existing with nickel bag rare earth form.
Embodiment one: rutile 32%; Sodium fluoride 2%; Elpasolite 1%; Calcium oxide+magnesia 7%; Potassic feldspar 2%; Zircon sand 2%; Chromic carbide iron powder 2%; Manganese silicon contains gold+manganese powder 15%; Molybdenum-iron powder 2%; Vanadium iron powder 1%; Ferro-niobium powder 1%; Ferro-boron 1%; Nickel rare earth 3%; Ferrotianium 6%; Nickel powder 4%; Iron powder 19%.After above raw material mixed, dries by formula rate; Join in the U type groove of steel band by certain filling rate again; Produce φ 1.2mm flux-cored wire through rolling, closed, drawing again; Adopt following welding procedure welding deposited metal test plate (panel): welding current 260A; Weldingvoltage 28V, welding gas 100% CO
2, extension elongation 18mm, speed of welding 6mm/s, 150 ℃ of preheat temperatures, 150 ± 10 ℃ of interlayer temperatures.The result is following for the deposited metal mechanical property test: σ s740Mpa; σ b830 Mpa; δ 19%; ψ 56%;-20 ℃ of Akv68J.
Embodiment two: rutile 36%; Sodium fluoride 1%; Elpasolite 2%; Calcium oxide+magnesia 8%; Potassic feldspar 2%; Zircon sand 1%; Hafnium metal powfer 1%; Manganese-silicon 15%; Molybdenum-iron powder 1.5%; Vanadium iron powder 1%; Ferro-niobium powder 1%; Ferro-boron 0.5%; Nickel rare earth 3%; Ferrotianium 4%; Nickel powder 4%; Iron powder 19%.After above raw material mixed, dries by formula rate; Join in the U type groove of steel band by certain filling rate again; Produce φ 1.2mm flux-cored wire through rolling, closed, drawing again; Adopt following welding procedure welding deposited metal test plate (panel): welding current 260A; Weldingvoltage 29V; Welding gas 80%, Ar+20% CO
2Extension elongation 18mm, speed of welding 6mm/s, 150 ℃ of preheat temperatures, 150 ± 10 ℃ of interlayer temperatures.The result is following for the deposited metal mechanical property test: σ s720Mpa; σ b830Mpa; δ 24%; ψ 63%;-20 ℃ of Akv85J.
Embodiment three: rutile 42%; Sodium fluoride 5%; Calcium oxide+magnesia 8%; Potassic feldspar 5%; Zircon sand 4%; Hafnium metal powfer 0.5%; Manganese-silicon 15%; Molybdenum-iron powder 1%; Vanadium iron powder 1.5%; Ferro-niobium powder 1.5%; Ferro-boron 0.5%; Nickel rare earth 4%; Ferrotianium 4%; Nickel powder 2.5%; Iron powder 5.5%.After above raw material mixed, dries by formula rate; Join in the U type groove of steel band by certain filling rate again; Produce φ 1.2mm flux-cored wire through rolling, closed, drawing again; Adopt following welding procedure welding deposited metal test plate (panel): welding current 260A; Weldingvoltage 29V; Welding gas 80%, Ar+20% CO
2Extension elongation 18mm, speed of welding 6mm/s, 150 ℃ of preheat temperatures, 150 ± 10 ℃ of interlayer temperatures.The result is following for the deposited metal mechanical property test: σ s780Mpa; σ b850Mpa; δ 25%; ψ 70%;-20 ℃ of Akv85J.
The present invention is through increasing an amount of arc stabilizer; Slag former; To improve the deslag performance of slag; And increase an amount of molybdenum-iron powder; Nickel powder; The ferrochrome powder; Ferromanganese powder; Vanadium iron powder; Ferro-niobium powder and nickel rare earth; To obtain the alloying component of an amount of proportioning; Obtain the intensity of weld seam and the optimum Match of toughness; Adopt the steel band of 0.8 * 1.2mm; Make flux-cored wire; The filling rate of medicinal powder is controlled at 14.5～15.5%; Make the welding wire of φ 1.6mm or φ 1.2mm; Rutile also adds an amount of calcium oxide and magnesia; It in welding wire main slag former; The acidity of acid slag system is suitably lowered in the adding of calcium oxide; Field trash to reducing in the weld metal has positive role, sodium fluoride; Sodium cryolite; The potassium ice crystal plays the effect that improves the welding slag performance in welding wire, and these materials have the effect of stable welding arc simultaneously; The present invention adds nickel bag rare earth, and the weld metal degree of purity is further improved; Adopt polynary microalloy, make weld metal have excellent mechanical property, be applicable to the steel plate of welding 800Mpa.
Claims (8)
1. high-strength hull steel flux-cored wire of low-alloy is characterized in that said welding wire comprises by weight percentage:
Rutile: 30～50%;
Calcium oxide or magnesia or two kinds of mixtures: 5～8%;
Potassic feldspar: 2～6%;
One or more mixtures in sodium fluoride, sodium cryolite, the elpasolite: 2～5%;
Zircon sand: 2～6%;
The alloyed powder that contains chromium is amounted to into Cr:0～2%;
The alloyed powder that contains manganese is amounted to into Mn:15～20%;
The alloyed powder that contains molybdenum is amounted to into Mo:0～2%;
The alloyed powder that contains vanadium is amounted to V:0～3%;
The alloyed powder that contains niobium is amounted to Nb:0～3%;
The boron-containing alloy powder is amounted to B:0～1%;
Rare earth alloy: 0～5%;
Ferrotianium: 2～6%;
Nickel powder: 2～4%;
Surplus is an iron powder.
2. according to the high-strength hull steel flux-cored wire of the said low-alloy of claim 1, it is characterized in that: the said alloyed powder that contains chromium is the mixture of chromic carbide iron powder or hafnium metal powfer or two kinds.
3. according to claim 1 or the high-strength hull steel flux-cored wire of 2 low-alloy, it is characterized in that: the said alloyed powder that contains manganese is that low Carbon Manganese iron powder or manganese powder or manganese silicon contain bronze or two or more mixture.
4. according to the high-strength hull steel flux-cored wire of the said low-alloy of claim 3, it is characterized in that: the said alloyed powder that contains molybdenum is the mixture of molybdenum-iron powder or metal molybdenum powder or two kinds.
5. according to the high-strength hull steel flux-cored wire of the said low-alloy of claim 4, it is characterized in that: the said alloyed powder that contains vanadium is a vanadium iron powder.
6. according to the high-strength hull steel flux-cored wire of the said low-alloy of claim 5, it is characterized in that: the said alloyed powder that contains niobium is the ferro-niobium powder.
7. according to the high-strength hull steel flux-cored wire of the said low-alloy of claim 6, it is characterized in that: said boron-containing alloy powder is the ferro-boron powder.
8. according to the high-strength hull steel flux-cored wire of the said low-alloy of claim 4, it is characterized in that: the nickel rare-earth metal powder of said rare earth alloy for existing with nickel bag rare earth form.
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| CN2011103288464A CN102350597A (en) | 2011-10-26 | 2011-10-26 | Flux-cored wire for low alloy high strength ship steel |
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|---|---|---|---|
| CN2011103288464A CN102350597A (en) | 2011-10-26 | 2011-10-26 | Flux-cored wire for low alloy high strength ship steel |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601545A (en) * | 2012-04-10 | 2012-07-25 | 山东大学 | Special powder for welding torch with functions of conveying powder and delivering gas |
| CN103358049A (en) * | 2012-04-09 | 2013-10-23 | 天津三英焊业股份有限公司 | Flux-cored wire prepared by using high titanium slag as main powder raw material |
| CN103659051A (en) * | 2014-01-06 | 2014-03-26 | 四川大西洋焊接材料股份有限公司 | Carbon steel flux-cored wire for nuclear power engineering and preparation and application thereof |
| CN103692110A (en) * | 2013-12-13 | 2014-04-02 | 天津三英焊业股份有限公司 | Gas-shielded flux-cored wire for maritime engineering |
| CN104526179A (en) * | 2014-12-02 | 2015-04-22 | 常州市正阳焊接材料有限公司 | CO2 protective high-toughness carbon steel flux-cored wire |
| CN104959748A (en) * | 2015-07-02 | 2015-10-07 | 武汉铁锚焊接材料股份有限公司 | Flux-cored wire special for maritime work low-temperature high-strength steel |
| CN106041363A (en) * | 2016-08-03 | 2016-10-26 | 武汉铁锚焊接材料股份有限公司 | Flux-cored wire for low-temperature and ultra-high-strength steel |
| CN106141497A (en) * | 2016-08-03 | 2016-11-23 | 武汉铁锚焊接材料股份有限公司 | A kind of 685MPa grade super strength steel flux-cored wire |
| CN107350660A (en) * | 2017-07-31 | 2017-11-17 | 西安理工大学 | WH80 steel gas shielded type flux-cored wire and preparation method thereof |
| CN108213672A (en) * | 2018-03-06 | 2018-06-29 | 盐城工学院 | A kind of dedicated welding robot of airconium alloy plates |
| CN111618474A (en) * | 2020-06-01 | 2020-09-04 | 鞍钢附企三炼钢修造总厂 | Impact-resistant and wear-resistant self-protection flux-cored wire |
| CN112975193A (en) * | 2021-02-09 | 2021-06-18 | 天津市金桥焊材集团股份有限公司 | High-toughness alkaline flux-cored wire slag system with excellent all-position weldability and flux-cored wire |
| CN113909737A (en) * | 2021-11-08 | 2022-01-11 | 山东寿光巨能特钢有限公司 | Flux core and welding wire for improving low-temperature toughness |
| CN115041866A (en) * | 2022-06-30 | 2022-09-13 | 三一重机有限公司 | Gas shielded welding wire and application thereof in welding of low-alloy high-strength steel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260261A (en) * | 2000-02-15 | 2000-07-19 | 华中理工大学 | High-strength and high-toughness CO2 gas-shielded basic cored welding wire |
| CN101596654A (en) * | 2009-07-03 | 2009-12-09 | 首钢总公司 | A kind of flux-cored wire used for welding high strength structure steel plate |
-
2011
- 2011-10-26 CN CN2011103288464A patent/CN102350597A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260261A (en) * | 2000-02-15 | 2000-07-19 | 华中理工大学 | High-strength and high-toughness CO2 gas-shielded basic cored welding wire |
| CN101596654A (en) * | 2009-07-03 | 2009-12-09 | 首钢总公司 | A kind of flux-cored wire used for welding high strength structure steel plate |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358049B (en) * | 2012-04-09 | 2016-01-20 | 天津三英焊业股份有限公司 | A kind of take high titanium slag as flux-cored wire prepared by medicinal powder primary raw material |
| CN103358049A (en) * | 2012-04-09 | 2013-10-23 | 天津三英焊业股份有限公司 | Flux-cored wire prepared by using high titanium slag as main powder raw material |
| CN102601545B (en) * | 2012-04-10 | 2014-06-18 | 山东大学 | Special powder for welding torch with functions of conveying powder and delivering gas |
| CN102601545A (en) * | 2012-04-10 | 2012-07-25 | 山东大学 | Special powder for welding torch with functions of conveying powder and delivering gas |
| CN103692110A (en) * | 2013-12-13 | 2014-04-02 | 天津三英焊业股份有限公司 | Gas-shielded flux-cored wire for maritime engineering |
| CN103659051B (en) * | 2014-01-06 | 2015-11-04 | 四川大西洋焊接材料股份有限公司 | A kind of nuclear power engineering carbon steel flux-cored wire and Synthesis and applications thereof |
| CN103659051A (en) * | 2014-01-06 | 2014-03-26 | 四川大西洋焊接材料股份有限公司 | Carbon steel flux-cored wire for nuclear power engineering and preparation and application thereof |
| CN104526179A (en) * | 2014-12-02 | 2015-04-22 | 常州市正阳焊接材料有限公司 | CO2 protective high-toughness carbon steel flux-cored wire |
| CN104959748A (en) * | 2015-07-02 | 2015-10-07 | 武汉铁锚焊接材料股份有限公司 | Flux-cored wire special for maritime work low-temperature high-strength steel |
| CN106041363B (en) * | 2016-08-03 | 2019-02-12 | 武汉铁锚焊接材料股份有限公司 | A kind of low temperature unimach flux-cored wire |
| CN106041363A (en) * | 2016-08-03 | 2016-10-26 | 武汉铁锚焊接材料股份有限公司 | Flux-cored wire for low-temperature and ultra-high-strength steel |
| CN106141497A (en) * | 2016-08-03 | 2016-11-23 | 武汉铁锚焊接材料股份有限公司 | A kind of 685MPa grade super strength steel flux-cored wire |
| CN107350660A (en) * | 2017-07-31 | 2017-11-17 | 西安理工大学 | WH80 steel gas shielded type flux-cored wire and preparation method thereof |
| CN108213672A (en) * | 2018-03-06 | 2018-06-29 | 盐城工学院 | A kind of dedicated welding robot of airconium alloy plates |
| CN111618474A (en) * | 2020-06-01 | 2020-09-04 | 鞍钢附企三炼钢修造总厂 | Impact-resistant and wear-resistant self-protection flux-cored wire |
| CN111618474B (en) * | 2020-06-01 | 2021-11-23 | 鞍钢附企三炼钢修造总厂 | Impact-resistant and wear-resistant self-protection flux-cored wire |
| CN112975193A (en) * | 2021-02-09 | 2021-06-18 | 天津市金桥焊材集团股份有限公司 | High-toughness alkaline flux-cored wire slag system with excellent all-position weldability and flux-cored wire |
| CN113909737A (en) * | 2021-11-08 | 2022-01-11 | 山东寿光巨能特钢有限公司 | Flux core and welding wire for improving low-temperature toughness |
| CN115041866A (en) * | 2022-06-30 | 2022-09-13 | 三一重机有限公司 | Gas shielded welding wire and application thereof in welding of low-alloy high-strength steel |
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Application publication date: 20120215 |