CN101966628A - Chemical powder components of 2507 type super double-phase stainless steel flux-cored wire - Google Patents
Chemical powder components of 2507 type super double-phase stainless steel flux-cored wire Download PDFInfo
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- CN101966628A CN101966628A CN 201010292668 CN201010292668A CN101966628A CN 101966628 A CN101966628 A CN 101966628A CN 201010292668 CN201010292668 CN 201010292668 CN 201010292668 A CN201010292668 A CN 201010292668A CN 101966628 A CN101966628 A CN 101966628A
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Abstract
The invention belongs to the field of welding materials and discloses chemical powder components of a 2507 type super double-phase stainless steel flux-cored wire. A common 304L stainless steel metal strip is used as an outer skin; the chemical powder components are filled inside the common 304L stainless steel metal strip to be rolled into a flux-cored wire. The chemical powder components of the 2507 type super double-phase stainless steel flux-cored wire are characterized by comprising the following components in percent by mass: 19 percent-38 percent of rutile, 3 percent-5 percent of zircon sand, 2 percent-4 percent of potassium fluoroaluminate, 1 percent-2 percent of aluminium magnesium alloy, 1 percent-3 percent of chromium nitride, 30 percent-35 percent of metallic chrome, 8 percent-10 percent of metallic nickel, 1 percent-2 percent of electrolytic manganese metal, 14.5 percent-20 percent of metallic molybdenum and 0.5 percent-1 percent of antimony oxide. In the invention, the steel pipe made from the 304L stainless steel strip (with the specification of 10*0.4mm) filled with the chemical powder is manufactured into the super double-phase stainless steel flux-cored wire according to the general production process. CO2 is used as welding protection gas for the flux-cored wire, and the flux-cored wire has the characteristics of good welding operation process performance, attractive welding line moulding, excellent welding process performance, favorable balance of welding tissue austenite and ferrite and the like.
Description
Technical field
The invention belongs to field of welding material, relate to the medicinal powder composition of 2,507 one class super-duplex stainless steel flux-cored wire used for welding.
Background technology
The SAF2507 steel is a most widely used steel grade in the super-duplex stainless steel, is widely used in chemical industry, boats and ships and ocean engineering, and the wlding supporting with it mainly contains 2507 super diphasic stainless steel electrodes and external 2507P super-duplex stainless steel flux-cored wire.The PRE of anti-pitting factor of domestic and international super-duplex stainless steel weld(ing) deposit
N＞40, and the PRE of general two phase stainless steel weld(ing) deposit
NValue is all less than 40.(2507 super diphasic stainless steel electrode welding efficiency are low, can not realize the automation welding, are difficult to adapt to the more and more higher requirement of current Automation of Welding degree.The domestic patent of still not having super-duplex stainless steel flux-cored wire 2507 aspects only has the patent that relates to two phase stainless steel flux-cored wire (E2209T): the flux-cored wire (200710175768.2) of (1), all-position welding two phase stainless steel; (2), a kind of flux-cored wire (200710098545.0) that is used for soldering diphasic stainless steel; (3), the flux-cored wire and the manufacture method (200710161867.5) thereof that are used for two phase stainless steel.Though external super-duplex stainless steel flux-cored wire used for welding 2507P can carry out automation, semi-automatic welding, welding efficiency is higher, has excellent mechanical property and welding technological properties simultaneously, and such welding wire can only adopt argon-rich gas (Ar+20%CO
2) weld every performance that could guarantee welding point, be not suitable for adopting active gases commonly used (as CO
2Gas) weld, the scope of application is restricted, and the welding wire cost performance is not high.The patent that relates to the two phase stainless steel flux-cored wire abroad: (1), Flux-cored wire for welding two phase strainless steel (JP2000176681 (A)); (2), Flux-cored wire for welding of duplex stainless steel which enables the miniaturization of soldified crystral particles (WO2009145347 (A1)).It is the supporting flux-cored wires of using of 2205 type two phase stainless steels that above patent all belongs to, its PRE
N=30～39, do not belong to the related super-duplex stainless steel flux-cored wire of present patent application.And the flux-cored wire PRE of present patent application
N＞40, be to be super-duplex stainless steel 2507 supporting flux-cored wire specials.
Summary of the invention
The present invention proposes a kind of super-duplex stainless steel flux-cored wire that can adopt pure active gases welding, both can guarantee every mechanical property of weld seam, and the weld seam processing performance is met the requirements, again can be because of adopting cheap pure CO
2Gas reduces the use cost of flux-cored wire significantly as welding protection gas.
The present invention is the medicinal powder composition of super-duplex stainless steel flux-cored wire, it is characterized in that adopting common 304L stainless steel belt to make crust, and the inner medicinal powder composition of filling is rolled into flux-cored wire; The component of described medicinal powder composition and the mass percent of proportioning are: rutile 19～38%, zircon sand 3～5%, potassium fluoroaluminate 2～4%, almag 1～2%, chromium nitride 1～3%, crome metal 30～35%, metallic nickel 8～10%, electrolytic manganese metal 1～2%, metal molybdenum 14.5～20%, antimony oxide 0.5～1%; The specification requirement of 304L stainless steel belt is as follows: C≤0.03%, Si≤1.0%, Mn≤2.0%, Cr:18.0～20.0%, Ni:8.0～12.0, S≤0.03%, P≤0.035%.The specification requirement of medicinal powder component is as follows: rutile: TiO
2〉=95%, S≤0.03%, P≤0.03%, 100% several granularities of looking over so as to check are 80 orders; Zircon sand: ZrO
2〉=60.0%, SiO
2≤ 32.0%, S≤0.050%, P≤0.22%, 100% several granularities of looking over so as to check are 80 orders; Potassium fluoroaluminate: K
3AlF
6〉=99.5%, 100% several granularities of looking over so as to check are 60 orders; Chromium nitride: N:11～18%, Si≤0.35%, Fe≤0.5%, C≤0.1%, the Cr surplus, 100% several granularities of looking over so as to check are 325 orders; Crome metal: Cr 〉=98%, C≤0.05%, S≤0.03%, P≤0.010%, 100% several granularities of looking over so as to check are 60 orders; Metallic nickel: Ni 〉=99.2%, C≤0.10%, S≤0.02%, P≤0.002%, 100% several granularities of looking over so as to check are 80 orders; Electrolytic manganese metal: Mn 〉=99.5%, C≤0.08%, S≤0.10%, P≤0.010%, 100% several granularities of looking over so as to check are 60 orders; Metal molybdenum: Mo 〉=99.5%, Fe≤0.03%, P≤0.005%, 100% several granularities of looking over so as to check are 120 orders; Almag: Al:47～53%, Mg 〉=47%, Al+Mg 〉=97.5%, 100% several granularities of looking over so as to check are 80 orders; Antimony oxide: Sb
2O
3〉=96%, 100% several granularities of looking over so as to check are 325 orders.
Among the present invention, rutile is one of main constituent in the medicinal powder, and its adding scope is 19%～38%.In this scope, can guarantee the arc stability burning, also guaranteed the all-position welding performance of welding wire.When rutile is lower than 19%, can cause that the metal splash increases, the arc stability variation can't be welded in vertical position welding and overhead position.When the rutile addition surpassed 38%, welding arc can be shaken, drift about, and welding fabrication worsens, and caused the welding heat crack resistance to descend simultaneously.
The cold-crack resistance energy and the anti-pore performance that add potassium fluoroaluminate main purpose raising weld seam in the present invention.When the potassium fluoroaluminate addition is lower than lower limit (2%), pore appears in the weld seam sometimes, and be higher than the upper limit (4%) Welding Molten Drop and sharply increase, spatter strengthens.
Add zircon sand (3～5%) among the present invention and mainly be when regulating the welding wire welding slag physical property such as fusing point, the removability of slag, spreadability or the like.When being lower than lower limit (3%), taking off slag and be worse off, above after the upper limit, fusing point sharply raises, and butt welded seam covers incomplete easily.
Having added 1～2% almag, mainly is to use as deoxidier.Addition was less than 1% o'clock, and the weld seam deoxidation is insufficient, and oxygen content is higher, and the weld seam ballistic work descends, and addition surpasses after 2%, the welding arc stablility variation.
The antimony oxide that adds trace among the present invention.Main purpose is to improve the deslag performance of weld seam, and addition is less than down in limited time, and deslag performance improves DeGrain, adds above after the upper limit, easily forms low melting point eutectic in the weld seam, worsens Weld Performance.
In super-duplex stainless steel, nitrogen adds mainly as the effective element that improves intensity and anti-corrosion capability.But in flux-cored wire, the affiliation that adds of a large amount of nitrogen produces defectives such as pore.When nitrogen content in the welding wire surpasses 0.15%, the tendency that generates pore will sharply increase.Because 2507 type super-duplex stainless steels require nitrogen content to surpass 0.20%, the adding of nitrogen in the present invention realizes with the form of chromium nitride, in the adding scope of this patent regulation, can guarantee that the nitrogen content of weld seam meets standard-required, does not produce pore simultaneously.
For composition and the steel grade coupling that guarantees flux-cored wire, to satisfy every performance requirement of standard code, as mechanical property, corrosion resisting property, phase ratio etc.Simple metal such as crome metal, metallic nickel, metal molybdenum, electrolytic manganese metal have been added in the present invention.Adopting simple metal and not adopting the reason of ferroalloy (as molybdenum-iron, ferrochrome etc.) is to infiltrate impurity content to deposited metal, for example carbon, sulphur, phosphorus etc. in order to control medicinal powder.
Medicinal powder filling of the present invention enters the 304L stainless steel belt, and (steel pipe that specification 10 * 0.4mm) is rolled into is prepared into the super-duplex stainless steel flux-cored wire of φ 1.2mm according to general production technology.This welding wire adopts CO
2As welding protection gas, having operative weldability can be good, and appearance of weld is attractive in appearance, the welding technological properties excellence, and the seam organization austenite-ferrite characteristics such as good that balance each other:
(1) the super-duplex stainless steel flux-cored wire that adopts medicinal powder of the present invention to prepare, the CO with 100%
2Gas is as welding protection gas, and arc burning is stable, does not have welding substantially and splashes.
(2) after the super-duplex stainless steel flux-cored wire that adopts medicinal powder of the present invention to prepare welded, the weld seam light was silvery white in color, and appearance of weld is attractive in appearance, need not operations such as follow-up pickling, polishing, polishing, has simplified production process.
(3) the flux-cored wire weld properties that adopts medicinal powder of the present invention to prepare satisfies the welding requirements of 2507 super-duplex stainless steels, adopts cheap CO
2Gas also reaches the Weld Performance when adopting argon-rich gas as protection gas.
(4) flux-cored wire that adopts medicinal powder of the present invention to prepare, two-phase proportion balance in the weld seam metallographic structure, wherein ferritic phase is greatly between 45%～55%.
The specific embodiment
In conjunction with the embodiment that provides the present invention is illustrated:
Table 1 medicinal powder composition (%)
One of implementation result example: adopt the deposited metal chemical analysis of 2507 type super-duplex stainless steel flux-cored wires of medicinal powder of the present invention preparation and deposited metal mechanical property (%) to see Table 2 and table 3.
Table 22507 type super-duplex stainless steel flux-cored wire deposited metal chemical analysis (%)
Annotate: PRE
NBe anti-pitting factor.PRE
N＝Cr+3.3Mo+16N
Table 3 2507 type super-duplex stainless steel flux-cored wire deposited metal performances
Claims (2)
1. the medicinal powder composition of a super-duplex stainless steel flux-cored wire adopts common 304L stainless steel belt to make crust, and the inner medicinal powder composition of filling is rolled into flux-cored wire; It is characterized in that: the component of described medicinal powder composition and the mass percent of proportioning are: rutile 19～38%, zircon sand 3～5%, potassium fluoroaluminate 2～4%, almag 1～2%, chromium nitride 1～3%, crome metal 30～35%, metallic nickel 8～10%, electrolytic manganese metal 1～2%, metal molybdenum 14.5～20%, antimony oxide 0.5～1%.
2. according to the medicinal powder composition of the described super-duplex stainless steel flux-cored wire of claim 1, it is characterized in that: the specification requirement of described 304L stainless steel belt is as follows: C≤0.03%, Si≤1.O%, Mn≤2.0%, Cr:18.0～20.0%, Ni:8.0～12.0, S≤0.03%, P≤0.035%; The specification requirement of described medicinal powder component is as follows: rutile: TiO
2〉=95%, S≤0.03%, P≤0.03%, 100% several granularities of looking over so as to check are 80 orders; Zircon sand: ZrO
2〉=60.0%, SiO
2≤ 32.0%, S≤0.050%, P≤0.22%, 100% several granularities of looking over so as to check are 80 orders; Potassium fluoroaluminate: K
3AlF
6〉=99.5%, 100% several granularities of looking over so as to check are 60 orders; Chromium nitride: N:11～18%, Si≤O.35%, Fe≤0.5%, C≤O.1%, the Cr surplus, 100% several granularities of looking over so as to check are 325 orders; Crome metal: Cr 〉=98%, C≤O.05%, S≤0.03%, P≤0.010%, 100% several granularities of looking over so as to check are 60 orders; Metallic nickel: Ni 〉=99.2%, C≤O.10%, S≤0.02%, P≤0.002%, 100% several granularities of looking over so as to check are 80 orders; Electrolytic manganese metal: Mn 〉=99.5%, C≤0.08%, S≤O.10%, P≤0.01O%, 100% several granularities of looking over so as to check are 60 orders; Metal molybdenum: Mo 〉=99.5%, Fe≤0.03%, P≤0.005%, 100% several granularities of looking over so as to check are 120 orders; Almag: Al:47～53%, Mg 〉=47%, Al+Mg 〉=97.5%, 100% several granularities of looking over so as to check are 80 orders; Antimony oxide: Sb
2O
3〉=96%, 100% several granularities of looking over so as to check are 325 orders.
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350598A (en) * | 2011-09-22 | 2012-02-15 | 中国船舶重工集团公司第七二五研究所 | Chromium-nickel austenitic stainless steel submerged-arc welding sintered flux |
| CN102689116A (en) * | 2012-06-11 | 2012-09-26 | 中冶焊接科技有限公司 | Preparation method of flux-cored wires with refined deposited metal crystalline grains and uniform tissues |
| CN102935562A (en) * | 2012-12-10 | 2013-02-20 | 郑州机械研究所 | Metal granular reinforced aluminum flux cored wire |
| CN103480984A (en) * | 2013-09-22 | 2014-01-01 | 北京工业大学 | 308 stainless steel flux-cored wire low in hexavalent chromium discharge |
| CN104259690A (en) * | 2014-07-09 | 2015-01-07 | 北京工业大学 | Stainless heat-proof self-protecting flux-cored wire for magnesium smelting reduction tank |
| CN104646859A (en) * | 2015-02-12 | 2015-05-27 | 西安理工大学 | Self-protection flux-cored wire for 2205 duplex stainless steel and preparation method thereof |
| CN104668814A (en) * | 2015-02-12 | 2015-06-03 | 西安理工大学 | Self protection type flux-cored wire for 2505 duplex stainless steel and preparing method thereof |
| CN105945446A (en) * | 2016-06-21 | 2016-09-21 | 西安理工大学 | Metal mold flux-cored wire for 1Cr12Ni2W1MoV stainless steel and preparation method of metal mold flux-cored wire |
| CN106271223A (en) * | 2015-05-12 | 2017-01-04 | 海宁瑞奥金属科技有限公司 | Phase stainless steel use submerged arc flux-cored wire solder flux |
| CN106583965A (en) * | 2016-12-15 | 2017-04-26 | 昆山京群焊材科技有限公司 | High-strength and high-toughness flux-cored wire with low tempering parameter and used for 2.25Cr-1Mo steel |
| CN106695156A (en) * | 2016-12-27 | 2017-05-24 | 上海焊接器材有限公司 | Super duplex stainless steel flux-cored wire |
| WO2017181633A1 (en) * | 2016-04-19 | 2017-10-26 | 南通豪泰焊材有限公司 | Titanic-acid-type stainless steel welding electrode and manufacturing method thereof |
| CN107877035A (en) * | 2017-11-30 | 2018-04-06 | 桂林航天工业学院 | Stainless flux-cored wire and its production method |
| CN109926755A (en) * | 2019-03-19 | 2019-06-25 | 江苏孚尔姆焊业股份有限公司 | Stainless flux-cored wire additive |
| CN110181199A (en) * | 2019-06-17 | 2019-08-30 | 武汉科技大学 | A kind of high nitrogen armour steel self-protection flux-cored wire suitable for all-position welding |
| CN113369496A (en) * | 2021-06-10 | 2021-09-10 | 天津大学 | Duplex stainless steel wire material for electric arc additive and duplex stainless steel component |
| CN114589429A (en) * | 2022-03-31 | 2022-06-07 | 广东省科学院中乌焊接研究所 | Super duplex stainless steel flux-cored wire for impeller additive repair and preparation method and application thereof |
| CN114833489A (en) * | 2022-04-29 | 2022-08-02 | 广东省科学院中乌焊接研究所 | Flux-cored wire for manufacturing super corrosion-resistant super duplex stainless steel by electric arc additive manufacturing and preparation method thereof |
| CN115961212A (en) * | 2021-10-12 | 2023-04-14 | 通用汽车环球科技运作有限责任公司 | Assembly with spliced mechanical and corrosive properties |
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| CN101829865A (en) * | 2010-05-11 | 2010-09-15 | 南通晨曦焊业有限公司 | Stainless steel flux cored wire for carbon dioxide gas protection |
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| JP2000176681A (en) * | 1998-12-09 | 2000-06-27 | Kobe Steel Ltd | Flux-corded wire for welding tow phase stainless steel |
| CN1470356A (en) * | 2003-07-11 | 2004-01-28 | 北京工业大学 | Bismuthum-free fine-diameter stainless steel cored welding wire |
| CN101134271A (en) * | 2007-10-11 | 2008-03-05 | 北京工业大学 | Full-position soldering biphase stainless steel flux-cored wire |
| CN101829865A (en) * | 2010-05-11 | 2010-09-15 | 南通晨曦焊业有限公司 | Stainless steel flux cored wire for carbon dioxide gas protection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350598B (en) * | 2011-09-22 | 2013-11-13 | 中国船舶重工集团公司第七二五研究所 | Chromium-nickel austenitic stainless steel submerged-arc welding sintered flux |
| CN102350598A (en) * | 2011-09-22 | 2012-02-15 | 中国船舶重工集团公司第七二五研究所 | Chromium-nickel austenitic stainless steel submerged-arc welding sintered flux |
| CN102689116A (en) * | 2012-06-11 | 2012-09-26 | 中冶焊接科技有限公司 | Preparation method of flux-cored wires with refined deposited metal crystalline grains and uniform tissues |
| CN102935562A (en) * | 2012-12-10 | 2013-02-20 | 郑州机械研究所 | Metal granular reinforced aluminum flux cored wire |
| CN103480984A (en) * | 2013-09-22 | 2014-01-01 | 北京工业大学 | 308 stainless steel flux-cored wire low in hexavalent chromium discharge |
| CN103480984B (en) * | 2013-09-22 | 2015-11-18 | 北京工业大学 | A kind of 308 stainless flux-cored wires of low Cr VI discharge |
| CN104259690A (en) * | 2014-07-09 | 2015-01-07 | 北京工业大学 | Stainless heat-proof self-protecting flux-cored wire for magnesium smelting reduction tank |
| CN104646859B (en) * | 2015-02-12 | 2017-05-03 | 西安理工大学 | Self-protection flux-cored wire for 2205 duplex stainless steel and preparation method thereof |
| CN104646859A (en) * | 2015-02-12 | 2015-05-27 | 西安理工大学 | Self-protection flux-cored wire for 2205 duplex stainless steel and preparation method thereof |
| CN104668814A (en) * | 2015-02-12 | 2015-06-03 | 西安理工大学 | Self protection type flux-cored wire for 2505 duplex stainless steel and preparing method thereof |
| CN106271223B (en) * | 2015-05-12 | 2019-01-22 | 海宁瑞奥金属科技有限公司 | Phase stainless steel use submerged arc welding material |
| CN106271223A (en) * | 2015-05-12 | 2017-01-04 | 海宁瑞奥金属科技有限公司 | Phase stainless steel use submerged arc flux-cored wire solder flux |
| WO2017181633A1 (en) * | 2016-04-19 | 2017-10-26 | 南通豪泰焊材有限公司 | Titanic-acid-type stainless steel welding electrode and manufacturing method thereof |
| CN105945446A (en) * | 2016-06-21 | 2016-09-21 | 西安理工大学 | Metal mold flux-cored wire for 1Cr12Ni2W1MoV stainless steel and preparation method of metal mold flux-cored wire |
| CN105945446B (en) * | 2016-06-21 | 2019-01-29 | 西安理工大学 | 1Cr12Ni2W1MoV stainless steel metal flux-cored wire and preparation method thereof |
| CN106583965A (en) * | 2016-12-15 | 2017-04-26 | 昆山京群焊材科技有限公司 | High-strength and high-toughness flux-cored wire with low tempering parameter and used for 2.25Cr-1Mo steel |
| CN106695156A (en) * | 2016-12-27 | 2017-05-24 | 上海焊接器材有限公司 | Super duplex stainless steel flux-cored wire |
| CN107877035B (en) * | 2017-11-30 | 2020-02-04 | 桂林航天工业学院 | Stainless steel flux-cored wire and production method thereof |
| CN107877035A (en) * | 2017-11-30 | 2018-04-06 | 桂林航天工业学院 | Stainless flux-cored wire and its production method |
| CN109926755A (en) * | 2019-03-19 | 2019-06-25 | 江苏孚尔姆焊业股份有限公司 | Stainless flux-cored wire additive |
| CN110181199A (en) * | 2019-06-17 | 2019-08-30 | 武汉科技大学 | A kind of high nitrogen armour steel self-protection flux-cored wire suitable for all-position welding |
| CN110181199B (en) * | 2019-06-17 | 2021-03-16 | 武汉科技大学 | Self-protection flux-cored wire suitable for all-position welding for high-nitrogen armored steel |
| CN113369496A (en) * | 2021-06-10 | 2021-09-10 | 天津大学 | Duplex stainless steel wire material for electric arc additive and duplex stainless steel component |
| CN115961212A (en) * | 2021-10-12 | 2023-04-14 | 通用汽车环球科技运作有限责任公司 | Assembly with spliced mechanical and corrosive properties |
| CN114589429A (en) * | 2022-03-31 | 2022-06-07 | 广东省科学院中乌焊接研究所 | Super duplex stainless steel flux-cored wire for impeller additive repair and preparation method and application thereof |
| CN114589429B (en) * | 2022-03-31 | 2022-08-30 | 广东省科学院中乌焊接研究所 | Super duplex stainless steel flux-cored wire for impeller additive repair and preparation method and application thereof |
| CN114833489A (en) * | 2022-04-29 | 2022-08-02 | 广东省科学院中乌焊接研究所 | Flux-cored wire for manufacturing super corrosion-resistant super duplex stainless steel by electric arc additive manufacturing and preparation method thereof |
| CN114833489B (en) * | 2022-04-29 | 2022-12-09 | 广东省科学院中乌焊接研究所 | Flux-cored wire for manufacturing super corrosion-resistant super duplex stainless steel by electric arc additive manufacturing and preparation method thereof |
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Application publication date: 20110209 |