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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- 238000003466 welding Methods 0.000 title claims abstract description 61
- 239000000843 powder Substances 0.000 claims abstract description 33
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 12
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 9
- 239000010436 fluorite Substances 0.000 claims abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 7
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 6
- -1 sodium fluorosilicate Chemical compound 0.000 claims abstract description 5
- 229910052796 boron Inorganic materials 0.000 claims abstract description 4
- OSMSIOKMMFKNIL-UHFFFAOYSA-N calcium;silicon Chemical compound [Ca]=[Si] OSMSIOKMMFKNIL-UHFFFAOYSA-N 0.000 claims abstract description 4
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 4
- 239000004579 marble Substances 0.000 claims abstract description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 12
- 239000011707 mineral Substances 0.000 claims description 12
- 239000003814 drug Substances 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 4
- MPPQGYCZBNURDG-UHFFFAOYSA-N 2-propionyl-6-dimethylaminonaphthalene Chemical compound C1=C(N(C)C)C=CC2=CC(C(=O)CC)=CC=C21 MPPQGYCZBNURDG-UHFFFAOYSA-N 0.000 claims description 3
- 108010038629 Molybdoferredoxin Proteins 0.000 claims description 3
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 239000010433 feldspar Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 23
- 239000002184 metal Substances 0.000 abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 6
- 239000001569 carbon dioxide Substances 0.000 abstract description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 229910000882 Ca alloy Inorganic materials 0.000 abstract 1
- 229910001309 Ferromolybdenum Inorganic materials 0.000 abstract 1
- 229910000922 High-strength low-alloy steel Inorganic materials 0.000 abstract 1
- 229910000861 Mg alloy Inorganic materials 0.000 abstract 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 abstract 1
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 abstract 1
- 229910001610 cryolite Inorganic materials 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 7
- 229910004261 CaF 2 Inorganic materials 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910017318 Mo—Ni Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 102220490052 tRNA-uridine aminocarboxypropyltransferase 2_H80A_mutation Human genes 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Nonmetallic Welding Materials (AREA)
Abstract
一种高强度高韧性二氧化碳气体保护碱性药芯焊丝,药芯焊丝的药芯粉由金红石、钾长石、钛酸钾、镁砂、氟硅酸钠、萤石、氟化物稀土、大理石、冰晶石、硼铁、硅钙合金、铝镁合金、金属锰、金属镍、钼铁、铁粉等混合而成。本发明所说的碱性药芯焊丝,具有生产效率高、综合成本低、焊接工艺性能优良、适宜于自动化焊接生产的特点。可用作为船舶、海洋钻井台、桥梁、高层建筑、高压蒸汽管道等高强度低合金钢焊接材料。A high-strength and high-toughness carbon dioxide gas-shielded basic flux-cored wire. The core powder of the flux-cored wire is made of rutile, potassium feldspar, potassium titanate, magnesia, sodium fluorosilicate, fluorite, fluoride rare earth, marble, Cryolite, ferro-boron, silicon-calcium alloy, aluminum-magnesium alloy, manganese metal, nickel metal, ferro-molybdenum, iron powder, etc. are mixed. The basic flux-cored welding wire of the present invention has the characteristics of high production efficiency, low comprehensive cost, excellent welding process performance, and is suitable for automatic welding production. It can be used as high-strength low-alloy steel welding materials for ships, offshore drilling platforms, bridges, high-rise buildings, and high-pressure steam pipelines.
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 |
Applications Claiming Priority (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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1260261A true CN1260261A (en) | 2000-07-19 |
Family
ID=4584066
Family Applications (1)
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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 (26)
| 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 cored wire for austenitic stainless steel |
| CN100400213C (en) * | 2005-02-22 | 2008-07-09 | 大连新船重工有限责任公司 | Low temperature resistant steel plate welding process |
| 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 |
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| 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 |
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2000
- 2000-02-15 CN CN 00114376 patent/CN1260261A/en active Pending
Cited By (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN100496866C (en) * | 2004-10-14 | 2009-06-10 | 大同特殊钢株式会社 | Welding wire |
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