CN101077554A - Half steel roller submerged arc building-up flux-cored wire - Google Patents
Half steel roller submerged arc building-up flux-cored wire Download PDFInfo
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- CN101077554A CN101077554A CN 200610081496 CN200610081496A CN101077554A CN 101077554 A CN101077554 A CN 101077554A CN 200610081496 CN200610081496 CN 200610081496 CN 200610081496 A CN200610081496 A CN 200610081496A CN 101077554 A CN101077554 A CN 101077554A
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Abstract
The present invention relates to one kind of flux-core wire for submerged arc build-up welding of semisteel roller, and the flux-core wire may be applied widely in the build-up welding repair of semisteel plate, roller, etc. The flux-core wire has the chemical components comprising C 1.0-2.5 wt%, Mn 1.0-2.5 wt%, Si 0.2-1.5 wt%, Cr 12-22 wt%, Ni 0.5-2.5 wt%, Mo 0-1.5 wt%, V 0-0.5 wt%, P less than or equal to 0.030 wt%, S less than or equal to 0.030 wt%, and Fe for the rest. When the flux-core wire is used in build-up welding under SJ107 flux protection, the weld seam metal has hardness of HRC35-45 and may reach hardness of HRC45-55 after heat treatment at 600 deg.c. The deposited metal has high toughness, excellent high temperature wear resistance and excellent heat fatigue resistance.
Description
Technical field
The present invention relates to a kind of welding material, be particularly useful for the roller class built-up welding of half steel material.Can be widely used in the submerged arc overlay welding reparation of the section bar, wire rolling roller, tilting roller etc. of half steel material.
Background technology
Owing to the concentrated wear of machine components makes the too early failure phenomenon of whole spare part commonplace, and most of workpiece can also continue by the method for repairing to use, and built-up welding is exactly a kind of important restorative procedure in numerous restorative procedures.
The hot roll of section bar, wire rod and tilting roller be owing to use down 1000～1200 ℃ of high temperature, requires to have that elevated temperature strength is good, the performance of high temperature resistance wearability, resisting viscosity steel, extensively takes the half steel material at present.Limit by material, the high temperature resistance polishing machine of half steel roller is generally lower, and general half steel roller promptly owing to wearing and tearing are scrapped, caused very big waste service life in 1 month.
The chemical composition phosphorus content of half steel roller is very high, and between 1.3～1.7%, alloy content compares higher, and microscopic structure is cementite and ferritic line and staff control basically.Its thermal conductivity factor is very low, easily produces bigger thermal stress and structural stress in the weld deposit process, during built-up welding preheat temperature control bad, be easy to produce overlay cladding and peel off.Common flux-cored wire overlay cladding peels off, produces defective such as tumor in that the elevated temperature heat fatigue effect is following easily, and the non-refractory wearing and tearing, thereby the domestic flux-cored wire that does not still have effectively to be applied to half steel material roller submerged arc overlay welding.
Application number is that 00103065.5 patent of invention discloses a kind of super-wear-resistant for submerged flux-cored wire, it is characterized in that by filling chromium carbide, pure niobium powder, pure molybdenum powder, tungsten carbide etc., the required cost of raw material is all than higher, and its high temperature wear resistant performance is not effectively verified, is not suitable for the submerged arc overlay welding reparation of half steel material roller class.
Application number is that 02132724.6 patent of invention discloses a kind of flux-cored wire.It is characterized in that improving the toughness of wear-resisting welding wire by adding rare earth element.Be mainly used under the normal temperature that the roller material, cold punching die, the cold shears that use are tough, gear, cam etc., its high temperature resistance thermal fatigue property and high-temperature wear behavior can't ensure.
Application number is that 03103971.5 patent of invention discloses a kind of abrasion-proof overlaying welding flux-cored wire, it is characterized in that the powder such as high carbon ferro-chrome, graphite, ferrotungsten, molybdenum-iron, vanadium iron, ferro-niobium by adding proper proportion, make flux-cored wire, its application is suitable for the medium-speed pulverizer grinding roller roller shell and the lining tile of low temperature, and high temperature wear resistant performance and high temperature resistance buildup performance there is no the related application report.
Summary of the invention
The invention reside in provides a kind of half steel material roller submerged arc overlay welding flux-cored wire, this flux-cored wire chemical composition (% by weight) is: C 1.0～2.5, Mn 1.0～2.5, Si 0.2～1.5, Cr 12～22, Ni 0.5～2.5, Mo 0～1.5, V 0～0.5, P≤0.030, S≤0.030, surplus are Fe.
The welding wire crust adopts low-carbon cold rolling annealing steel band, alloy powder ratios such as the low-carbon ferrochromium by adjust adding, high carbon ferro-chrome, ferromanganese, silicomangan, ferronickel, molybdenum-iron, vanadium iron, make this flux-cored wire chemical composition (% by weight) be: C1.0～2.5, Mn1.0～2.5, Si0.2～1.5, Cr12～22, Ni0.5～2.5, Mo0～1.5, V0～0.5, P≤0.030, S≤0.030, surplus are Fe.
During this welding wire SJ107 solder flux protection built-up welding, after its as-welded hardness can reach HRC35～40,600 ℃ insulation heat treatment in 8 hours, hardness can reach HRC45～55.
Major technique characteristics of the present invention are that flux-cored wire has high carbon content and multiple alloying element.
C is the martensite forming element, be the essential element that improves deposited metal hardness, generally, the too high meeting of carbon content causes segregation, make the deposited metal embrittlement, crack under the effect of welding stress, when still adding multiple carbide former Cr, Mo, V, these elements can at first form with the C reaction be insoluble to austenitic carbide, absorb austenitic C content, when overlay cladding cools off, can obtain hardness height, good combination property, the martensitic structure that carbon containing is relatively low.Carbide former Cr, Mo, when V is suitable, can form the carbide that disperse distributes, become the forming core particle, thereby crystal grain thinning improves overlay cladding toughness, reach the high purpose of cracking resistance, thereby the high-temperature wearable that improves overlay cladding decreases performance and heat resistanceheat resistant cyclic fatigue performance.The percentage by weight of above-mentioned element is C1.0～2.5, Cr12～22, Mo0～1.5, V0～0.5.
Ni, Mn, Si are non-carbide former, and main and Fe forms solid solution, and the deposited metal Effect on Performance is solution strengthening, increase the quenching degree and the elevated temperature strength of deposited metal, Si, Mn also have the combined deoxidation effect in welding process, when its Mn/Si ≈ 3, deoxidation effect is the most obvious.The percentage by weight of above-mentioned element is Mn1.0～2.5, Si0.2～1.5, Ni0.5～2.5.
P, S are harmful element, by selecting the alloy powder of low P, S for use, control P, S≤0.030.
Flux-cored wire of the present invention is by following step production: (1) is with alloy powders such as low-carbon ferrochromium, high carbon ferro-chrome, ferromanganese, silicomangan, ferronickel, molybdenum-iron, the vanadium iron hopper that mixes according to a certain percentage, dries, packs into; (2) will be with steel to be rolled into " V " type by roll, " U " type groove, with medicinal powder according to filling ratio adding type groove; (3) " U " type groove that will add medicinal powder seals; (4) the drawing tube reducing is to Φ 2.4～3.2mm.
Embodiment
Embodiment 1. proportionally mixes alloy powders such as low-carbon ferrochromium, high carbon ferro-chrome, ferromanganese, silicomangan, ferronickel, molybdenum-iron, vanadium iron, make flux-cored wire according to the specification graphic technique, flux-cored wire composition percentage by weight is that C1.1, Mn1.8, Si0.6, Cr20, Ni1.7, Mo0.6, V0.25 surplus are Fe.Half steel tilting roller material composition (percentage by weight) is: C1.3～1.5, Mn0.5～1.5, Si0.5～1.5, Cr0.8～1.2, Ni 〉=0.20, Mo0.2～0.6, P≤0.030, S≤0.030, surplus are Fe.With the laggard windrow weldering of fatigue layer turning, welding procedure is as follows:
Gage of wire: Φ 4.0mm;
Preheat temperature: 300 ℃;
Welding current: 400～500A;
Weldingvoltage: 28～34V.
Half steel tilting roller after the built-up welding is put into heat-treatment furnace immediately, be heated to 600 ℃, be incubated 8 hours, to room temperature, processing back hardness is HRC50 with the stove air cooling.Result of use shows that the new roller life-span of the half steel tilting roller after built-up welding is repaired improves more than 1 times, does not peel off in the use, the dross phenomenon.
Embodiment 2. proportionally mixes alloy powders such as low-carbon ferrochromium, high carbon ferro-chrome, ferromanganese, silicomangan, ferronickel, molybdenum-iron, make flux-cored wire according to the specification graphic technique, flux-cored wire composition percentage by weight is C1.6, Mn2.1, Si0.3, Cr19, Ni2.4, Mo0.9, P≤0.030, S≤0.030, and surplus is Fe.Ferrosteel roll material composition (percentage by weight) is: C1.5～1.7, Mn0.5～1.5, Si0.5～1.5, Cr0.8～1.2, Ni 〉=0.20, Mo0.2～0.6, P≤0.030, S≤0.030, surplus are Fe.With the laggard windrow weldering of fatigue layer turning, welding procedure is as follows:
Gage of wire: Φ 3.2mm;
Preheat temperature: 300 ℃;
Welding current: 350～450A;
Weldingvoltage: 28～34V.
Ferrosteel roll after the built-up welding is put into heat-treatment furnace immediately, be heated to 600 ℃, be incubated 8 hours, to room temperature, processing back hardness is HRC48 with the stove air cooling.Result of use shows that the new roller life-span of the ferrosteel roll after built-up welding is repaired improves more than 1 times, does not peel off in the use, the dross phenomenon.
Embodiment 3. proportionally mixes alloy powders such as low-carbon ferrochromium, high carbon ferro-chrome, ferromanganese, silicomangan, ferronickel, vanadium iron, make flux-cored wire according to the specification graphic technique, flux-cored wire composition percentage by weight is that C1.4, Mn1.8, Si0.6, Cr20, Ni2.3, V0.35 surplus are Fe.Half steel tilting roller material composition (percentage by weight) is: C1.3～1.5, Mn0.5～1.5, Si0.5～1.5, Cr0.8～1.2, Ni 〉=0.20, Mo0.2～0.6, P≤0.030, S≤0.030, surplus are Fe.With the laggard windrow weldering of fatigue layer turning, welding procedure is as follows:
Gage of wire: Φ 4.0mm;
Preheat temperature: 300 ℃;
Welding current: 400～500A;
Weldingvoltage: 28～34V.
Half steel tilting roller after the built-up welding is put into heat-treatment furnace immediately, be heated to 600 ℃, be incubated 8 hours, to room temperature, processing back hardness is HRC47 with the stove air cooling.Result of use shows that the new roller life-span of the half steel tilting roller after built-up welding is repaired improves more than 1 times, does not peel off in the use, the dross phenomenon.
Claims (1)
1. half steel material roller submerged arc overlay welding flux-cored wire, this flux-cored wire chemical composition (% by weight) is: C 1.0～2.5, Mn 1.0～2.5, Si 0.2～1.5, Cr 12～22, Ni 0.5～2.5, Mo 0～1.5, V 0～0.5, P≤0.030, S≤0.030, surplus are Fe.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100814965A CN100463762C (en) | 2006-05-24 | 2006-05-24 | Half steel roller submerged arc building-up flux-cored wire |
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| CNB2006100814965A CN100463762C (en) | 2006-05-24 | 2006-05-24 | Half steel roller submerged arc building-up flux-cored wire |
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| CN101077554A true CN101077554A (en) | 2007-11-28 |
| CN100463762C CN100463762C (en) | 2009-02-25 |
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| CN102000926A (en) * | 2010-12-26 | 2011-04-06 | 无锡市汉森金属有限公司 | Wear resistant surfacing solid welding wire containing chromium-molybdenum-vanadium alloy |
| CN102430839A (en) * | 2011-09-28 | 2012-05-02 | 常州宝菱重工机械有限公司 | Method for manufacturing composite straightening roll by overlaying |
| CN102886654A (en) * | 2012-10-29 | 2013-01-23 | 海门市威菱焊材制造有限公司 | Process of nickel-based high-temperature alloy flux-cored welding wire on hard surface of wrapper roller |
| CN102962601A (en) * | 2012-11-07 | 2013-03-13 | 北京奥邦焊业有限公司 | Welding stick and manufacturing method thereof |
| CN104066544A (en) * | 2012-01-31 | 2014-09-24 | 株式会社神户制钢所 | Mechanical part welded by weld overlay material and weld overlay metal |
| CN104551437A (en) * | 2014-11-13 | 2015-04-29 | 上海施威重工成套有限公司 | Manufacture technology of submerged-arc welding tubular flux-cored wire |
| CN104551438A (en) * | 2014-11-13 | 2015-04-29 | 上海施威焊接产业有限公司 | Submerged-arc welding tubular flux-cored wire |
| CN104668819A (en) * | 2015-02-12 | 2015-06-03 | 西安理工大学 | Metal flux-cored wire for 2205 duplex stainless steel and preparing method thereof |
| CN107962314A (en) * | 2016-10-19 | 2018-04-27 | 珠海奥邦焊接科技有限公司 | A kind of welding wire and its manufacture method |
| CN114589431A (en) * | 2021-12-20 | 2022-06-07 | 鞍山冶金集团工业有限公司鞍山三炼钢分公司 | Self-protection flux-cored wire for cover layer of extrusion roll |
| CN116079279A (en) * | 2023-04-07 | 2023-05-09 | 西安热工研究院有限公司 | Wear-resistant corrosion-resistant Fe-based welding wire and preparation method thereof |
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| CN1048207C (en) * | 1995-03-24 | 2000-01-12 | 鞍山钢铁公司 | High-chrome cast iron surfacing welding material and technique |
| CN1160619A (en) * | 1996-03-25 | 1997-10-01 | 吕家琈 | Bead welding wire for welding hot-work die |
| JP3112447B2 (en) * | 1998-10-12 | 2000-11-27 | 中部電力株式会社 | Composite wire for hardfacing self-shielded arc welding |
| CN1112278C (en) * | 2000-02-28 | 2003-06-25 | 贾世文 | Cored welding wire of super-wear-resistant for submerged are build-up welding |
| US6916444B1 (en) * | 2002-02-12 | 2005-07-12 | Alloy Technology Solutions, Inc. | Wear resistant alloy containing residual austenite for valve seat insert |
| CN1465465A (en) * | 2002-06-07 | 2004-01-07 | 机械科学研究院哈尔滨焊接研究所 | Build-up welding wire with flux capable of adhering wearing |
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| CN102000926A (en) * | 2010-12-26 | 2011-04-06 | 无锡市汉森金属有限公司 | Wear resistant surfacing solid welding wire containing chromium-molybdenum-vanadium alloy |
| CN102430839B (en) * | 2011-09-28 | 2014-04-09 | 常州宝菱重工机械有限公司 | Method for manufacturing composite straightening roll by overlaying |
| CN102430839A (en) * | 2011-09-28 | 2012-05-02 | 常州宝菱重工机械有限公司 | Method for manufacturing composite straightening roll by overlaying |
| CN104066544B (en) * | 2012-01-31 | 2019-04-30 | 株式会社神户制钢所 | Resurfacing welding material and the machine components for having welded deposited metal |
| CN104066544A (en) * | 2012-01-31 | 2014-09-24 | 株式会社神户制钢所 | Mechanical part welded by weld overlay material and weld overlay metal |
| CN102886654A (en) * | 2012-10-29 | 2013-01-23 | 海门市威菱焊材制造有限公司 | Process of nickel-based high-temperature alloy flux-cored welding wire on hard surface of wrapper roller |
| CN102962601A (en) * | 2012-11-07 | 2013-03-13 | 北京奥邦焊业有限公司 | Welding stick and manufacturing method thereof |
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| CN104551438A (en) * | 2014-11-13 | 2015-04-29 | 上海施威焊接产业有限公司 | Submerged-arc welding tubular flux-cored wire |
| CN104551437A (en) * | 2014-11-13 | 2015-04-29 | 上海施威重工成套有限公司 | Manufacture technology of submerged-arc welding tubular flux-cored wire |
| CN104668819A (en) * | 2015-02-12 | 2015-06-03 | 西安理工大学 | Metal flux-cored wire for 2205 duplex stainless steel and preparing method thereof |
| CN104668819B (en) * | 2015-02-12 | 2016-08-10 | 西安理工大学 | 2205 phase stainless steel use metal flux-cored wires and preparation method thereof |
| CN107962314A (en) * | 2016-10-19 | 2018-04-27 | 珠海奥邦焊接科技有限公司 | A kind of welding wire and its manufacture method |
| CN114589431A (en) * | 2021-12-20 | 2022-06-07 | 鞍山冶金集团工业有限公司鞍山三炼钢分公司 | Self-protection flux-cored wire for cover layer of extrusion roll |
| CN114589431B (en) * | 2021-12-20 | 2023-07-18 | 鞍山冶金集团工业有限公司鞍山三炼钢分公司 | Self-protection flux-cored wire for extrusion roller cover layer |
| CN116079279A (en) * | 2023-04-07 | 2023-05-09 | 西安热工研究院有限公司 | Wear-resistant corrosion-resistant Fe-based welding wire and preparation method thereof |
| CN116079279B (en) * | 2023-04-07 | 2023-08-18 | 西安热工研究院有限公司 | Wear-resistant corrosion-resistant Fe-based welding wire and preparation method thereof |
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| CN100463762C (en) | 2009-02-25 |
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Address after: 100041 Beijing Shijingshan District Shougang Corporation Patentee after: Shougang Group Co. Ltd. Address before: 100041 Beijing Shijingshan District Shougang Corporation Patentee before: Capital Iron & Steel General Company |