CN1289255C - Welding flux core welding wire for continuous cast roller over laying welding - Google Patents
Welding flux core welding wire for continuous cast roller over laying welding Download PDFInfo
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- CN1289255C CN1289255C CN 200410040550 CN200410040550A CN1289255C CN 1289255 C CN1289255 C CN 1289255C CN 200410040550 CN200410040550 CN 200410040550 CN 200410040550 A CN200410040550 A CN 200410040550A CN 1289255 C CN1289255 C CN 1289255C
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Abstract
The present invention discloses a welding flux core welding wire for continuous cast roller bead weld. The welding wire contains components according to the weight percentage as following: 0.08 to 0.14% of C, 0.70 to 1.55% of Si, 0.45 to 1.75% of Mn, 12.0 to 15.5% of Cr, 0.5 to 4.5% of Ni, 0.02 to 0.65% of V, 0.02 to 0.65% of Nb, 0.05 to 0.50% of Ti, 0.03 to 0.50% of W, 0.06 to 0.12% of N and 0.03 to 0.08% of Al. According to the weight percentage, the welding wire can also contain one or multiple of the following elements: 0.01 to 0.40% of Cu, 0.06 to 1.60% of Re, 0.3 to 0.7% of Mo. The present invention has the advantages that bead weld alloy has fine abrasion resistance, heat resistance and fatigue resistance capability. Thereby, the service life of a continuous cast roller is enhanced. In addition, after one or multiple of Cu, Re and Mo are added to the welding wire, the service life of the continuous cast roller can be further enhanced by enhancing the corrosion resistance of the bead weld alloy.
Description
Technical field
The present invention relates to a kind of welding material, in particular for the flux-cored wire of build-up welding continuous-casting roller.
Background technology
At present, domestic build-up welding of continuous casting roller mainly adopts HCr13 series resurfacing welding material, and the subject matter that it exists is: (1) corrosion resistance is relatively poor; (2) thermal fatigue resistance is relatively poor: (3) wearability is not enough, makes the continuous casting roller life-span lower.The continuous casting roller of such alloy welding deposit, fatigue crack is destroyed and produced to postwelding metal corrosion-vulnerable, temperature range when main cause is the use of continuous casting roller is 400～900 ℃, the solubility of C in matrix about 0.6%, the C that surpasses solubility will spread to crystal boundary, very easily form the carbide of Cr and be deposited in crystal boundary with Cr along the crystal boundary reaction, Cr will be constantly to these particle edges diffusions, because the inner Cr diffusion velocity of crystal grain is slower, at the carbide that forms Cr Cr may take place supply falls short of demand phenomenon simultaneously, cause thin layer of grain surface seriously to lack Cr near crystal boundary, tangible grain boundary corrosion takes place in subcritical value 12%, cracks the source, very fast formation fatigue crack has influenced the further raising in continuous casting roller life-span.
Summary of the invention
Technical problem to be solved by this invention provides a kind of flux-cored wire that makes hardfacing alloy not only have good wearability but also have good heat-resistant anti-fatigue ability, thereby improves the life-span of continuous casting roller.
The technical solution adopted for the present invention to solve the technical problems is: this build-up welding of continuous casting roller is made up of following ingredients by weight percentage with flux-cored wire: C:0.08～0.14%, Si:0.70～1.55%, Mn:0.45～1.75%, Cr:12.0～15.5%, Ni:0.5～4.5%, V:0.02～0.65%, Nb:0.02～0.65%, Ti:0.05～0.50%, W:0.03～0.50%, N:0.06～0.12%, Al:0.03～0.08%, all the other are Fe, impurity and other compositions.
The content of described impurity is by weight percentage: S≤0.03%, P≤0.03%.
In technique scheme, reduced C content in the flux-cored wire, be reduced to the carbon in the welding wire minimum, general about 0.10% (C of deposited metal is about 0.07%), C is dissolving substantially in matrix, adds C that N replaces reducing and remedies the hardness loss that the reduction because of C causes, and adding simultaneously can be more preferential than Cr and elements such as Ti, the V of C combination, Nb, W, Mo, can significantly reduce the formation of Cr carbide like this, can reduce to the Cr dilution phenomenon around the crystal boundary minimum.N is the same with C, the frequent and Cr reaction formation nitride at high temperature, but it is different with the bulk carbide that accumulates in crystal boundary, and it separates out both little evenly distribution again, and supply falls short of demand can not cause Cr, do not form the sensitized zone, avoided grain boundary corrosion, improved thermal fatigue resistance.These precipitates have the trend that prevents that grain growth and obstruction dislocation from moving simultaneously, have improved the elevated temperature strength of deposited metal, and nitride is compared with carbide, and higher ageing resistance ability is arranged; Ti, V, Nb have stronger crystal grain thinning and solution strengthening ability, two kinds of elements are above add than separately a kind of add fashionable effective, Ti and Al unite the effect ratio that adds crystal grain thinning and have only Ti strong, V, Nb also have stronger precipitation strength ability, and they and W are the strong carbide forming elements, and the high-temperature stability of these carbide is better, they make the crystallite dimension of deposited metal little, the hardness height, high temperature abrasion resistance is good, and toughness is better.
As improvement of the technical scheme, be to strengthen the corrosion resistance of hardfacing alloy, described other compositions comprise a kind of in following by weight percentage at least: Cu:0.01～0.40%, Re:0.06～1.60%, Mo:0.3～0.7%.The adding of Cu, Re and Mo more makes hardfacing alloy have stronger corrosion resistance, use water cooling in the use of continuous casting roller, the water containing chlorine ion, Mo can increase the corrosion resistance of hardfacing alloy in the chlorion medium, Cu and Re have stronger non-oxidizability ability, when Cu, Re and Cr, Ni, Ti etc. add fashionablely jointly, the corrosion resistance of alloy is better.
The invention has the beneficial effects as follows that hardfacing alloy has good wearability, heat-resistant anti-fatigue ability, thereby improve the life-span of continuous casting roller.
In addition, in welding wire, add among Cu, Re, the Mo one or more after, the life-span that can further improve the continuous casting roller by the corrosion resistance that improves hardfacing alloy also.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1:
Ferroalloy powdeies such as ferromanganese, ferrosilicon, ferrochrome, vanadium iron, ferronickel, manganese nitrogen alloy, VN alloy, ferro-niobium, ferrotungsten, aluminium and iron powder, chromium powder etc. are got material by a certain percentage, evenly mix, its composition is: C 0.10%, Si 1.20%, Mn 1.45%, Cr 13.6%, Ni 3.5%, V 0.03%, Nb 0.025%, Ti 0.25%, W 0.07%, N 0.10%, Al 0.05%, S≤0.03%, P≤0.03%, surplus is Fe, below all be weight percentage, the percentage sum is 100%.With the powders mixture of the aforementioned proportion steel band groove of packing into, be drawn into the welding wire of Ф 4.0mm then, be used to swing submerged arc welding machine build-up welding continuous-casting roller, the wearability of hardfacing alloy is good, crack resistance is good.
Embodiment 2:
Ferroalloy powdeies such as ferromanganese, ferrosilicon, ferrochrome, vanadium iron, ferronickel, manganese nitrogen alloy, VN alloy, ferro-niobium, ferrotungsten, aluminium and iron powder, chromium powder, copper etc. are got material by a certain percentage, evenly mix, its composition is: C 0.08%, Si 1.10%, Mn 0.80%, Cr 13.2%, Ni 3.8%, V 0.05%, Nb 0.13%, Ti 0.10%, W 0.08%, Cu 0.15%, N 0.09%, Al 0.05%, S≤0.03%, P≤0.03%, surplus is Fe, below all be weight percentage, the percentage sum is 100%.With the powders mixture of the aforementioned proportion steel band groove of packing into, be drawn into the welding wire of Ф 3.2mm then, be used to swing submerged arc welding machine build-up welding continuous-casting roller, the wearability of hardfacing alloy is good, good corrosion resistance, crack resistance are good.
Embodiment 3:
With ferromanganese, ferrosilicon, molybdenum-iron, ferrochrome, vanadium iron, ferronickel, manganese nitrogen alloy, VN alloy, ferro-niobium, ferrotungsten, ferroalloy powder and iron powders such as aluminium, chromium powder, rare earth, copper, aluminium etc. are got material by a certain percentage, evenly mix, its composition is: C 0.08%, Si 0.70%, Mn 0.45%, Cr 12.0%, Ni 0.5%, Mo 0.3%, V 0.02%, Nb 0.02%, Ti 0.05%, W 0.03%, Cu 0.01%, Re 0.06%, N 0.06%, Al 0.03%, S≤0.03%, P≤0.03%, surplus is Fe, below all be weight percentage, the percentage sum is 100%.With the powders mixture of the aforementioned proportion steel band groove of packing into, be drawn into the welding wire of Ф 2mm then, be used for open arc welding machine build-up welding continuous-casting roller, the wearability of hardfacing alloy is good, good corrosion resistance, crack resistance are good.
Embodiment 4:
With ferromanganese, ferrosilicon, molybdenum-iron, ferrochrome, vanadium iron, ferronickel, VN alloy, ferro-niobium, ferrotungsten, ferroalloy powder and iron powders such as aluminium, chromium powder, rare earth, copper, aluminium etc. are got material by a certain percentage, evenly mix, its composition is: C 0.14%, Si 1.55%, Mn 1.75%, Cr 15.5%, Ni 4.5%, Mo 0.7%, V 0.65%, Nb 0.65%, Ti 0.50%, W 0.50%, Cu 0.40%, Re 1.60%, N 0.12%, Al 0.08%, S≤0.03%, P≤0.03%, surplus is Fe, below all be weight percentage, the percentage sum is 100%.With the powders mixture of the aforementioned proportion steel band groove of packing into, be drawn into the welding wire of Ф 4mm then, be used for submerged arc welding machine build-up welding continuous-casting roller, the wearability of hardfacing alloy is good, good corrosion resistance, crack resistance are good.
Embodiment 5:
With ferromanganese, ferrosilicon, molybdenum-iron, ferrochrome, vanadium iron, ferronickel, manganese nitrogen alloy, VN alloy, ferro-niobium, ferrotungsten, ferroalloy powder and iron powders such as aluminium, chromium powder, rare earth, copper, aluminium etc. are got material by a certain percentage, evenly mix, its composition is: C 0.10%, Si 1.35%, Mn 1.60%, Cr 12.6%, Ni 3.5%, Mo 0.47%, V 0.025%, Nb 0.025%, Ti 0.15%, W 0.07%, Cu 0.015%, Re 1.30%, N 0.086%, Al 0.05%, S≤0.03%, P≤0.03%, surplus is Fe, below all be weight percentage, the percentage sum is 100%.With the powders mixture of the aforementioned proportion steel band groove of packing into, be drawn into the welding wire of Ф 3.2mm then, be used to swing submerged arc welding machine build-up welding continuous-casting roller, the wearability of hardfacing alloy is good, good corrosion resistance, crack resistance are good.
Claims (3)
1, a kind of build-up welding of continuous casting roller flux-cored wire, it is characterized in that: this flux-cored wire is made up of following ingredients by weight percentage: C:0.08～0.14%, Si:0.70～1.55%, Mn:0.45～1.75%, Cr:12.0～15.5%, Ni:0.5～4.5%, V:0.02～0.65%, Nb:0.02～0.65%, Ti:0.05～0.50%, W:0.03～0.50%, N:0.06～0.12%, Al:0.03～0.08%, all the other are Fe, impurity and other compositions.
2, build-up welding of continuous casting roller flux-cored wire as claimed in claim 1 is characterized in that: described other compositions comprise a kind of in following by weight percentage at least: Cu:0.0l～0.40%, Re:0.06～1.60%, Mo:0.3～0.7%.
3, build-up welding of continuous casting roller flux-cored wire according to claim 1 is characterized in that: the content of described impurity connects percentage by weight and is: S≤0.03, P≤0.03%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040550 CN1289255C (en) | 2004-08-27 | 2004-08-27 | Welding flux core welding wire for continuous cast roller over laying welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040550 CN1289255C (en) | 2004-08-27 | 2004-08-27 | Welding flux core welding wire for continuous cast roller over laying welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1597233A CN1597233A (en) | 2005-03-23 |
| CN1289255C true CN1289255C (en) | 2006-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410040550 Expired - Fee Related CN1289255C (en) | 2004-08-27 | 2004-08-27 | Welding flux core welding wire for continuous cast roller over laying welding |
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Families Citing this family (22)
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| CH700482A1 (en) * | 2009-02-19 | 2010-08-31 | Alstom Technology Ltd | Welding additive material. |
| CN102528222B (en) * | 2010-12-15 | 2014-10-29 | 中冶焊接科技有限公司 | Overlaying-combining-remanufacturing substrate material for Cr4 and Cr5 series of hot rolling work rolls and back-up rolls |
| CN102744528B (en) * | 2011-04-22 | 2014-06-18 | 攀钢集团钢铁钒钛股份有限公司 | Flux-cored wire, method for manufacturing coil box bending roller, and coil box bending roller |
| CN102909486A (en) * | 2012-10-29 | 2013-02-06 | 海门市威菱焊材制造有限公司 | Flux-cored wire applied to low-alloy steel and production method of flux-cored wire |
| CN102922818A (en) * | 2012-10-29 | 2013-02-13 | 海门市威菱焊材制造有限公司 | Improved bimetal plate and manufacturing method thereof |
| CN102962601B (en) * | 2012-11-07 | 2016-03-02 | 北京奥邦焊业有限公司 | A kind of welding wire |
| US10047417B2 (en) * | 2015-03-11 | 2018-08-14 | Aktiebolaget Skf | Continuous caster roll for a continuous casting machine |
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| CN105436665B (en) * | 2015-12-16 | 2017-10-31 | 秦皇岛鸿翔焊业有限公司 | The method of large-scale hot-rolling supporting roll Cr4 built-up welding reconstruction layer and repaired roller |
| CN105478962B (en) * | 2015-12-16 | 2017-10-31 | 秦皇岛鸿翔焊业有限公司 | The method of large-scale cold rolling backing roll 70Cr3Mo built-up welding reconstruction layer and repaired roller |
| CN105414798A (en) * | 2015-12-21 | 2016-03-23 | 四川鸿舰重型机械制造有限责任公司 | Flux-cored wire for coke-breaking roll overlaying welding |
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| CN107775211B (en) * | 2017-09-01 | 2020-04-03 | 苏州优霹耐磨复合材料有限公司 | Flux-cored wire for wear-resistant hard-face surfacing |
| CN109465565A (en) * | 2017-09-07 | 2019-03-15 | 宝山钢铁股份有限公司 | A kind of gas protecting welding wire and its manufacturing method |
| CN108015447B (en) * | 2017-11-02 | 2019-12-03 | 中冶建筑研究总院有限公司 | Continuous Casting Rolls submerged arc overlay welding precipitation hardening type stainless flux-cored wire and preparation method thereof |
| CN109014654B (en) * | 2018-07-16 | 2020-12-11 | 中冶建筑研究总院有限公司 | Submerged arc surfacing flux-cored wire for composite (re) manufacturing continuous casting roller and process |
| CN109108523A (en) * | 2018-08-13 | 2019-01-01 | 安徽再制造工程设计中心有限公司 | A kind of grate plate renovation technique |
| CN115026456A (en) * | 2022-06-23 | 2022-09-09 | 东北特殊钢集团股份有限公司 | Method for improving roller repair welding quality by adopting new-component welding wire and welding process |
| CN116100192B (en) * | 2023-02-21 | 2023-09-08 | 西安热工研究院有限公司 | Flux-cored wire and method for manufacturing flux-cored wire |
| CN116713637B (en) * | 2023-07-31 | 2023-11-03 | 燕山大学 | Flux-cored wire for build-up welding and material increase of fan-shaped section continuous casting roller, and preparation method and application thereof |
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2004
- 2004-08-27 CN CN 200410040550 patent/CN1289255C/en not_active Expired - Fee Related
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| CN1597233A (en) | 2005-03-23 |
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