CN1260261A - High-strength and high-toughness CO2 gas-shielded basic cored welding wire - Google Patents
High-strength and high-toughness CO2 gas-shielded basic cored welding wire Download PDFInfo
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- CN1260261A CN1260261A CN 00114376 CN00114376A CN1260261A CN 1260261 A CN1260261 A CN 1260261A CN 00114376 CN00114376 CN 00114376 CN 00114376 A CN00114376 A CN 00114376A CN 1260261 A CN1260261 A CN 1260261A
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Abstract
The core powder of flux-cored wire is made up by mixing the powdered materials of rutile, potash feldspar, potassium titanate, magnetic clinker, sodium fluorosilicate, fluorite, fluoride rare earth, marble, cryolite, ferroboron, calcium silicon alloy, alluminium-magnesium alloy, metal manganese, metal nickel, ferromolybdenum and iron powder. Said basic flux-cored wire possesses the features of high production efficiency, low cost, excellent welding property and automatic welding production, can be used as welding material for high-strength low-alloy steel in the fields of ship, offshore drilling platform, bridge, high-rise building and high-pressure steam pipeline, etc..
Description
The invention belongs to a kind of high-strength and high-toughness CO 2 gas-shielded basic cored welding wire.
Because Aldecor not only has very high intensity, and good low-temperature impact toughness is arranged, so be widely used in the production of mechanical engineering structure.The welding material that matches with Aldecor at present is mainly welding rod, automatic submerged arc welding wire and carbon dioxide gas arc welding solid core welding wire.When welding production, will dry before the welding rod weldering, and can not realize automation welding production, thereby production efficiency is low, the production cost height with welding rod.Welding is produced although automatic submerged arc welding wire, CO 2 gas-shielded solid core welding wire may be realized automation; but the only suitable welding of Lincoln weld is in easy flights in 30 ° long weld seam welding; CO 2 gas-shielded solid core welding wire spatter is bigger; the weld metal moulding is relatively poor, the difficulty of solid core welding wire chemical composition allotment simultaneously.In addition, the low-temperature impact toughness of Aldecor butt welded seam metal has very high requirement, particularly tensile strength to be not less than the Aldecor of 650MPa, and the v-notch impact value that general requirement is-20 ℃ is not less than 47 joules.The weld metal of welding materials such as common welding rod, automatic submerged arc welding wire and CO 2 gas-shielded solid core welding wire difficulty reaches above-mentioned basic demand.
The advantage that flux-cored wire gathers welding rod, CO 2 gas-shielded solid core welding wire, its production efficiency height, good, the weld metal low-temperature impact toughness height of welding technological properties are the best supporting welding materials of Aldecor.
Although some welding material manufacturer carries out flux-cored wire production both at home and abroad at present, but it mainly produces the solder wire with acidity core that weld metal tensile strength is not higher than 500MPa, though the solder wire with acidity core welding technological properties is good, but its weld metal contains more non-metallic inclusion, causes the weld metal low-temperature impact toughness lower.
The objective of the invention is at deficiency of the prior art; invent a kind of shortcoming that can overcome welding rod, Lincoln weld welding wire and carbon dioxide gas arc welding solid core welding wire, it satisfies the high-strength and high-toughness CO 2 gas-shielded basic cored welding wire that tensile strength is not less than 650MPa.
The medicine core powder of the said high-strength and high-toughness CO 2 gas-shielded basic cored welding wire of the present invention is mixed by alloyed powder and mineral powder, the formula rate such as the following table of each mineral powder, alloyed powder:
Table 1: high-strength and high-toughness CO 2 gas-shielded basic cored welding wire medicine core powder composition prescription
| Composition | Ratio | Composition | Ratio | Composition | Ratio |
| Rutile | ??10～40％ | The fluoride rare earth | ??1～9％ | Manganese metal | ??1～26％ |
| Potassic feldspar | ??1～7％ | Marble | ??0～8％ | Metallic nickel | ??2～20％ |
| Potassium titanate | ??0～8％ | Ice crystal | ??0～11％ | Molybdenum-iron | ??0～12％ |
| Magnesia | ??3～26％ | Ferro-boron | ??0～6％ | 290 iron powders | ??0～25％ |
| Prodan | ??3～28％ | Calcium-silicon | ??1～10％ | ||
| Fluorite | ??2～30％ | Almag | ??0～16％ |
In order to guarantee that the said high-strength and high-toughness CO 2 gas-shielded basic cored welding wire of the present invention has good welding technological properties, weld metal has low diffusible hydrogen content, good cold-crack resistance energy and high low-temperature impact toughness value, selects for use by fluorite (CaF
2), magnesia (MgO) and rutile (TiO
2) basic slag system formed, i.e. CaF
2-MgO-TiO
2Slag system.
The said high-strength and high-toughness CO 2 gas-shielded basic cored welding wire of the present invention is the novel welding material of a kind of high-tech, has the production efficiency height, integrated cost is low, welding technological properties is good, be suitable for the characteristics that automation welding is produced.Can be used as boats and ships, offshore drill raised platform around a well, bridge, skyscraper, the contour intensity low-alloy steel of high steam pipeline welding material.
The said high-strength and high-toughness CO 2 gas-shielded basic cored welding wire of the present invention has following characteristics:
1. throat thickness is lower than the Aldecor plate of 40mm, does not need weld preheating and post weld heat treatment.
2. the weld metal diffusible hydrogen content is measured with the glycerine method and is not higher than 3.0ml/100g, and anti-cold crack is functional.
3. the welding technological properties of welding wire is good, and spatter is little, and the weld metal removability of slag and weld metal moulding are good, welding arc stablility.
4. the low-temperature impact toughness value height of weld metal, the charpy impact value in the time of-20 ℃ is not less than 85 joules.
5. the tensile strength of weld metal is not less than 650MPa, percentage elongation δ
5Be not less than 18%, contraction percentage of area ψ is not less than 50%.
Below further specify the welding technological properties that the said high-strength and high-toughness CO 2 gas-shielded basic cored welding wire of the present invention had and the mechanical property of weld metal.
Welding technological properties:
Fluorite (CaF
2) be the important mineral powder that influences the high-strength and high-toughness CO 2 gas-shielded basic cored welding wire welding technological properties, adjust the ratio of fluoride in the flux-cored wire medicine core powder, can significantly improve the stability of welding arc, reduce spatter.Rutile (TiO
2) with magnesia (MgO), fluorite (CaF
2) suitable proportion, make the degree of being stained with of slag, basicity reach optimum state, guarantee that the slag of alkaline flux-cored wire has good flowability, spreadability and the removability of slag, thereby make flux-cored wire that good welding technological properties be arranged.
The mechanical property of weld metal:
In order to guarantee the mechanical property of weld metal, adopt the solution strengthening of manganese (Mn), molybdenum (Mo), in flux-cored wire medicine core powder, add an amount of nickel (Ni), form Mn-Mo-Ni alloying weld metal, make and contain a large amount of acicular ferrites in the weld metal, a spot of bainite, martensite and retained austenite guarantee that weld metal tensile strength is not less than 650MPa, and-20 ℃ low-temperature impact toughness is not less than 85 joules.The chemical composition and the mechanical property of the high-strength and high-toughness CO 2 gas-shielded basic cored welding wire weld metal of invention are as follows:
Table 2: the chemical composition W of deposited metal, %
| Carbon C | Silicon Si | Manganese Mn | Sulphur S | Phosphorus P | Molybdenum Mo | Nickel |
| ?0.03～0.08 | ?0.25～0.35 | ?1.30～1.85 | ≤0.01 | ≤0.02 | ≤0.35 | ?0.95～2.50 |
Table 3: the mechanical property of deposited metal
| Yield strength б 8/MPa | Tensile strength б 6/MPa | Percentage elongation δ 5/％ | Contraction percentage of area ψ/% | Impact value α -20℃/J |
| ?530～560 | ?650～685 | ??≥18 | ????≥50 | ????≥85 |
Below provide the embodiment of high-strength and high-toughness CO 2 gas-shielded basic cored welding wire:
1). medicine core powder is mixed by alloyed powder and mineral powder, with alloyed powder and mineral powder stir repeatedly, homogenising, carry out flux-cored wire production, the formula rate of each alloyed powder and mineral powder is: rutile 10～40%; Potassic feldspar 1～7%; Potassium titanate 0～8%; Magnesia 3～26%; Prodan 3～28%; Fluorite 2～30%; Fluoride rare earth 1～9%; Marble 0～8%; Ice crystal 0～11%; Ferro-boron 0～6%; Calcium-silicon 1～10%; Almag 0～16%; Manganese metal 1～26%; Metallic nickel 2～20%; Molybdenum-iron 0～12%; 290 iron powders 0～25%.
2). adopt fluorite (CaF
2), magnesia (MgO) and rutile (TiO
2) composition basic slag system, i.e. CaF
2-MgO-TiO
2Slag system.
3). the steel band of property flux-cored wire is carbon steel H80A.
4). the medicine core rate of alkaline flux-cored wire is 13～17%.
5). the granularity of the alloyed powder of alkaline flux-cored wire, mineral powder is 65～300 orders, and the mineral powder in the medicine core powder was through 300～600 ℃ of oven dry insulations 1～2 hour, and ferroalloy was through 50～100 ℃ of oven dry insulations 1～2 hour.
Claims (5)
1, a kind of high-strength and high-toughness CO 2 gas-shielded basic cored welding wire is characterized in that, medicine core powder is mixed by alloyed powder and mineral powder, and the formula rate of each alloyed powder and mineral powder is: rutile 10～40%: potassic feldspar 1～7%; Potassium titanate 0～8%; Magnesia 3～26%; Prodan 3～28%; Fluorite 2～30%; Fluoride rare earth 1～9%; Marble 0～8%; Ice crystal 0～11%; Ferro-boron 0～6%; Calcium-silicon 1～10%; Almag 0～16%; Manganese metal 1～26%; Metallic nickel 2～20%; Molybdenum-iron 0～12%; 290 iron powders 0～25%.
2, according to the said alkaline flux-cored wire of claim 1, it is characterized in that, is by fluorite (CaF at said flux-cored wire
2), the basic slag system formed of magnesia (MgO) and rutile (TiO2), i.e. CaF2-MgO-TiO2 slag system.
According to the said alkaline flux-cored wire of claim 1, it is characterized in that 3, the steel band of said alkaline flux-cored wire is a carbon steel.
According to the said alkaline flux-cored wire of claim 1, it is characterized in that 4, the medicine core rate of said alkaline flux-cored wire is 13～17%.
5, according to the said alkaline flux-cored wire of claim 1, it is characterized in that, the granularity of the alloyed powder of said alkaline flux-cored wire, mineral powder is 65～300 orders, and the mineral powder in the medicine core powder was through 300～600 ℃ of oven dry insulations 1～2 hour, and ferroalloy was through 50～100 ℃ of oven dry insulations 1～2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00114376 CN1260261A (en) | 2000-02-15 | 2000-02-15 | High-strength and high-toughness CO2 gas-shielded basic cored welding wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00114376 CN1260261A (en) | 2000-02-15 | 2000-02-15 | High-strength and high-toughness CO2 gas-shielded basic cored welding wire |
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| Publication Number | Publication Date |
|---|---|
| CN1260261A true CN1260261A (en) | 2000-07-19 |
Family
ID=4584066
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|---|---|---|---|
| CN 00114376 Pending CN1260261A (en) | 2000-02-15 | 2000-02-15 | High-strength and high-toughness CO2 gas-shielded basic cored welding wire |
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305636C (en) * | 2003-10-13 | 2007-03-21 | 基斯韦尔株式会社 | Flux cored wire for gas shield arc welding |
| CN100382924C (en) * | 2006-04-06 | 2008-04-23 | 北京工业大学 | Submerged-arc welding metal core weldingwire for austenite stainless steel |
| CN100400213C (en) * | 2005-02-22 | 2008-07-09 | 大连新船重工有限责任公司 | Processing method of low temperature resistance steel plate welding |
| CN100496866C (en) * | 2004-10-14 | 2009-06-10 | 大同特殊钢株式会社 | Welding wire |
| CN102069322A (en) * | 2010-12-24 | 2011-05-25 | 中国船舶重工集团公司第七二五研究所 | High-strength carbon dioxide protecting surfacing flux-cored wire |
| CN102152028A (en) * | 2011-04-28 | 2011-08-17 | 武汉晟舜焊接工程科技有限公司 | High-strength and high-toughness flux-cored welding wire material for submerged arc welding with high heat input |
| CN102350597A (en) * | 2011-10-26 | 2012-02-15 | 南通晨曦焊业有限公司 | Flux-cored wire for low alloy high strength ship steel |
| 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 |
| CN102794583A (en) * | 2012-07-12 | 2012-11-28 | 武汉铁锚焊接材料股份有限公司 | Preheat-free welding rod and manufacturing method and application thereof |
| CN103056549A (en) * | 2012-12-20 | 2013-04-24 | 中冶焊接科技有限公司 | Alkaline CO2 gas protection dilute alloy heat resistant steel flux-cored wire |
| CN103447712A (en) * | 2013-09-09 | 2013-12-18 | 张盘 | Weld metal of welded joint of high-toughness low-temperature pipeline |
| CN103495817A (en) * | 2013-10-16 | 2014-01-08 | 宁波隆兴焊割科技股份有限公司 | Alkaline welding flux cored wire protected by CO2 gas or 80Ar + CO2 gas |
| CN103506770A (en) * | 2013-09-27 | 2014-01-15 | 武汉光谷机电科技有限公司 | Aluminum alloy sheet laser welding auxiliary weld-joint forming material and preparation method 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 |
| CN104259688A (en) * | 2014-09-17 | 2015-01-07 | 山东聚力焊接材料有限公司 | Great line energy gas-electric vertical welding flux core wire and production method thereof |
| CN104889608A (en) * | 2015-06-26 | 2015-09-09 | 郑州华威焊业有限公司 | Basic flux-cored wire for structural steel welding |
| CN101678513B (en) * | 2007-05-03 | 2016-03-16 | 伊利诺斯工具制品有限公司 | Aluminum deoxidizing welding wire |
| CN106077992A (en) * | 2016-07-07 | 2016-11-09 | 南京航空航天大学 | A kind of mould electric arc that is applicable to increases micro-slag gas-shielded flux-cored wire that material manufactures |
| CN106825992A (en) * | 2017-01-20 | 2017-06-13 | 武汉铁锚焊接材料股份有限公司 | A kind of 620MPa grade low-temps steel flux-cored wire and its welding method |
| CN106862801A (en) * | 2017-04-28 | 2017-06-20 | 天津市永昌焊丝有限公司 | A kind of full-automatic gas-shielded flux-cored wire of pipe line steel |
| CN108044256A (en) * | 2017-12-15 | 2018-05-18 | 武汉铁锚焊接材料股份有限公司 | Nuclear power 20 control chromium steel gas-shielded flux-cored wires and its welding method |
| CN110202291A (en) * | 2019-05-29 | 2019-09-06 | 武汉铁锚焊接材料股份有限公司 | 50 kg all-position welding weathering steel flux-cored wires of one kind and its application |
| CN110625298A (en) * | 2019-11-06 | 2019-12-31 | 山东聚力焊接材料有限公司 | Welding wire flux-cored material with crack resistance and air hole resistance, welding wire and preparation method thereof |
| CN112917044A (en) * | 2021-02-03 | 2021-06-08 | 武汉铁锚焊接材料股份有限公司 | 550 MPa-level flux-cored wire with excellent moisture resistance |
| CN115415698A (en) * | 2022-06-02 | 2022-12-02 | 湖北三环智能科技有限公司 | Hot forging die repairing remanufactured flux-cored wire and performance real-time regulation and control method |
-
2000
- 2000-02-15 CN CN 00114376 patent/CN1260261A/en active Pending
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|---|---|---|---|---|
| CN1305636C (en) * | 2003-10-13 | 2007-03-21 | 基斯韦尔株式会社 | Flux cored wire for gas shield arc welding |
| CN100496866C (en) * | 2004-10-14 | 2009-06-10 | 大同特殊钢株式会社 | Welding wire |
| CN100400213C (en) * | 2005-02-22 | 2008-07-09 | 大连新船重工有限责任公司 | Processing method of low temperature resistance steel plate welding |
| CN100382924C (en) * | 2006-04-06 | 2008-04-23 | 北京工业大学 | Submerged-arc welding metal core weldingwire for austenite stainless steel |
| US9604315B2 (en) | 2007-05-03 | 2017-03-28 | Illinois Tool Works Inc. | Aluminum deoxidizing welding wire |
| CN101678513B (en) * | 2007-05-03 | 2016-03-16 | 伊利诺斯工具制品有限公司 | Aluminum deoxidizing welding wire |
| CN102069322A (en) * | 2010-12-24 | 2011-05-25 | 中国船舶重工集团公司第七二五研究所 | High-strength carbon dioxide protecting surfacing flux-cored wire |
| CN102069322B (en) * | 2010-12-24 | 2012-11-14 | 中国船舶重工集团公司第七二五研究所 | High-strength carbon dioxide protecting surfacing flux-cored wire |
| CN102152028A (en) * | 2011-04-28 | 2011-08-17 | 武汉晟舜焊接工程科技有限公司 | High-strength and high-toughness flux-cored welding wire material for submerged arc welding with high heat input |
| CN102350597A (en) * | 2011-10-26 | 2012-02-15 | 南通晨曦焊业有限公司 | Flux-cored wire for low alloy high strength ship steel |
| 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 |
| 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 |
| CN102794583A (en) * | 2012-07-12 | 2012-11-28 | 武汉铁锚焊接材料股份有限公司 | Preheat-free welding rod and manufacturing method and application thereof |
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| CN103056549A (en) * | 2012-12-20 | 2013-04-24 | 中冶焊接科技有限公司 | Alkaline CO2 gas protection dilute alloy heat resistant steel flux-cored wire |
| CN103447712A (en) * | 2013-09-09 | 2013-12-18 | 张盘 | Weld metal of welded joint of high-toughness low-temperature pipeline |
| CN103506770B (en) * | 2013-09-27 | 2015-05-20 | 武汉光谷机电科技有限公司 | Aluminum alloy sheet laser welding auxiliary weld-joint forming material and preparation method thereof |
| CN103506770A (en) * | 2013-09-27 | 2014-01-15 | 武汉光谷机电科技有限公司 | Aluminum alloy sheet laser welding auxiliary weld-joint forming material and preparation method thereof |
| CN103495817B (en) * | 2013-10-16 | 2015-11-18 | 宁波隆兴焊割科技股份有限公司 | C0 2or 80Ar+C0 2gas-shielded basic weldering flux-cored wire |
| CN103495817A (en) * | 2013-10-16 | 2014-01-08 | 宁波隆兴焊割科技股份有限公司 | Alkaline welding flux cored wire protected by CO2 gas or 80Ar + CO2 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 |
| CN104259688A (en) * | 2014-09-17 | 2015-01-07 | 山东聚力焊接材料有限公司 | Great line energy gas-electric vertical welding flux core wire and production method thereof |
| CN104889608A (en) * | 2015-06-26 | 2015-09-09 | 郑州华威焊业有限公司 | Basic flux-cored wire for structural steel welding |
| CN106077992B (en) * | 2016-07-07 | 2018-06-19 | 南京航空航天大学 | A kind of micro- slag gas-shielded flux-cored wire suitable for mold electric arc increasing material manufacturing |
| CN106077992A (en) * | 2016-07-07 | 2016-11-09 | 南京航空航天大学 | A kind of mould electric arc that is applicable to increases micro-slag gas-shielded flux-cored wire that material manufactures |
| CN106825992A (en) * | 2017-01-20 | 2017-06-13 | 武汉铁锚焊接材料股份有限公司 | A kind of 620MPa grade low-temps steel flux-cored wire and its welding method |
| CN106825992B (en) * | 2017-01-20 | 2019-06-04 | 武汉铁锚焊接材料股份有限公司 | A kind of 620MPa grade low-temp steel flux-cored wire and its welding method |
| CN106862801A (en) * | 2017-04-28 | 2017-06-20 | 天津市永昌焊丝有限公司 | A kind of full-automatic gas-shielded flux-cored wire of pipe line steel |
| CN108044256A (en) * | 2017-12-15 | 2018-05-18 | 武汉铁锚焊接材料股份有限公司 | Nuclear power 20 control chromium steel gas-shielded flux-cored wires and its welding method |
| CN110202291A (en) * | 2019-05-29 | 2019-09-06 | 武汉铁锚焊接材料股份有限公司 | 50 kg all-position welding weathering steel flux-cored wires of one kind and its application |
| CN110625298A (en) * | 2019-11-06 | 2019-12-31 | 山东聚力焊接材料有限公司 | Welding wire flux-cored material with crack resistance and air hole resistance, welding wire and preparation method thereof |
| CN110625298B (en) * | 2019-11-06 | 2021-07-27 | 山东聚力焊接材料有限公司 | Welding wire flux-cored material with crack resistance and air hole resistance, welding wire and preparation method thereof |
| CN112917044A (en) * | 2021-02-03 | 2021-06-08 | 武汉铁锚焊接材料股份有限公司 | 550 MPa-level flux-cored wire with excellent moisture resistance |
| CN112917044B (en) * | 2021-02-03 | 2022-09-06 | 武汉铁锚焊接材料股份有限公司 | 550 MPa-level flux-cored wire with excellent moisture resistance |
| CN115415698A (en) * | 2022-06-02 | 2022-12-02 | 湖北三环智能科技有限公司 | Hot forging die repairing remanufactured flux-cored wire and performance real-time regulation and control method |
| CN115415698B (en) * | 2022-06-02 | 2023-10-20 | 湖北三环智能科技有限公司 | Flux-cored wire manufactured through repair and remanufacturing of hot forging die and performance real-time regulation and control method |
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