CN1923435A - Pile-up welding flux-cored wire for restoring cold rolling intermediate roller operational layer and method for manufacturing same - Google Patents
Pile-up welding flux-cored wire for restoring cold rolling intermediate roller operational layer and method for manufacturing same Download PDFInfo
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- CN1923435A CN1923435A CN 200610021798 CN200610021798A CN1923435A CN 1923435 A CN1923435 A CN 1923435A CN 200610021798 CN200610021798 CN 200610021798 CN 200610021798 A CN200610021798 A CN 200610021798A CN 1923435 A CN1923435 A CN 1923435A
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Abstract
The invention relates to a welding drug core welding wire used to repair the working layer of cold rolling middle roller. Wherein, said welding wire comprises coat and drug core; said drug core comprises medium-carbon ferromanganese at 1.2-1.6%, high carbon ferro-chrome at 6.0-8.0%, ferro-molybdenum at 1.0-3.0%, ferro-vanadium at 0.7-1.5%, ferrocolumbium at 0.06-0.16%, ferrotungsten at 1.0-2.8%, ferrotitanium at 0.05-0.09%, nickel at 0.7-1.2%, silicon iron at 0.80-1.5%, rare-earth at 1.0-5.0%, derbyshire spar at 4.5-10.5%, and the left is iron powder. The invention has simple method, and the rigidity is HRC55-59, without crack.
Description
Technical field
The invention belongs to welding material and manufacture method thereof, particularly relate to a kind of repair cold-rolling intermediate calender rolls working lining flux-cored wire and manufacture method thereof.
Background technology
Cold rolling intermediate calender rolls is the critical component that cold-rolled steel sheet is produced required parts, bear bigger alternate stress during work, hardness of roll body reaches HRC56～59, also require to have the ability of anti-strip preferably simultaneously, therefore present manufacturer generally adopts high-carbon low-alloy steel such as 9Cr3Mo through forging and the manufacturing of complicated heat treatment process forms, and costs an arm and a leg, and the consumption of annual cold rolling intermediate calender rolls is very big, just scrap because of repairing very big the reparation hardly of difficulty again, cause enormous economic loss.
Technique for overlaying is mainly adopted in reparation to cold rolling intermediate calender rolls, and it comprises weld preheating, built-up welding and the post weld heat treatment process of roller.Built-up welding comprises the built-up welding of transition zone and working lining, and the resurfacing welding material that uses in this operation is the key factor in decision surfacing layer metal performance and cold rolling intermediate calender rolls service life.Also there is not at present special cold rolling intermediate calender rolls reparation working lining welding wire.
Summary of the invention
Technical problem to be solved by this invention provides a kind of repair cold-rolling intermediate calender rolls working lining flux-cored wire, and the hardness of this welding wire built-up welding layer metal reaches HRC56～59, has good wearability, cracking resistance and antifatigue destructive characteristics.
The present invention also will provide a kind of manufacture method of above-mentioned welding wire.
The technical scheme that technical solution problem of the present invention is adopted is: repair cold-rolling intermediate calender rolls working lining flux-cored wire, comprise crust and medicine core, the component of described medicine core content by weight percentage comprises: mid-carbon fe-mn: 1.2～1.6%, high carbon ferro-chrome: 6.0～8.0%, molybdenum-iron: 1.0～3.0%, vanadium iron: 0.7～1.5%, ferro-niobium 0.06～0.16%, ferrotungsten: 1.0～2.8%, ferrotianium: 0.05～0.09%, metallic nickel: 0.7～1.2%, ferrosilicon: 0.80～1.5%, rare earth: 1.0～5.0%, fluorite: 4.5～10.5%, all the other are iron powders.
Further, the granularity (order) of described medicine core component is respectively: mid-carbon fe-mn: 80～120, high carbon ferro-chrome: 80～120, molybdenum-iron: 80～120, vanadium iron: 60～120, ferro-niobium: 80～120, ferrotungsten: 60～120, ferrotianium: 60～120, metallic nickel: 80～120, ferrosilicon: 60～120, rare earth: 80～120, fluorite: 60～120, iron powder: 80～120.
Repair cold-rolling intermediate calender rolls working lining may further comprise the steps: after the oven dry of 1) cold-rolled strip being with, being deoiled through cutting out, be rolled into " U " type with the manufacture method of flux-cored wire; 2) preparation medicine core batching and oven dry; 3) with being rolled into " O " type behind the filling medicine core in steel band " U " the type groove, be drawn into flux-cored wire then.
Further, the described cold-rolled strip of step 1 is that thickness is that 0.3～0.8mm, width are the cold-rolled strip of 8.0～16.0mm.
Further, described cold-rolled strip adopts the H08A cold-rolled strip.
Further, the described flux-cored wire of step 3 is that diameter is the flux-cored wire of 2.0～5.0mm.
The invention has the beneficial effects as follows: manufacture method is simple, and the deposited metal hardness of welding wire is HRC55～59, and cracking resistance is good in the weld deposit process, is difficult for cracking, when reaching cold rolling intermediate calender rolls built-up welding fully and repairing to the specification requirement of working lining built-up welding.Hardfacing alloy not only has higher hardness, and wearability is good, and has toughness preferably, and crack resistance is good, thereby can improve the service life of intermediate calender rolls.
The specific embodiment
Ti, V and Nb element all have stronger crystal grain thinning and solution strengthening ability, V and Nb element also have stronger precipitation strength ability, they and Mo element all are the strong carbide forming elements, add that these alloying elements make the crystallite dimension of deposited metal little, hardness is high, toughness is better.Preferred 1.0～3.0% (weight percent contents, as follows) of molybdenum-iron of the present invention, vanadium iron are preferred 0.7～1.5%, ferro-niobium is preferred 0.06～0.16%, ferrotianium preferred 0.05～0.09%.
The carbide of W element is stable, is difficult for during tempering separating out and assembling, and the temper resistance of steel is improved, can cause post-curing by carbide precipitate during tempering under higher temperature, the W element can stop grain growth, increases quenching degree, thereby improve the wearability of steel, ferrotungsten of the present invention preferred 1.0～2.8%.
Adding Ni element can improve the intensity and the toughness of alloy, contains at the same time under the situation of Ni and Cr element, and the Ni element can also improve the temper resistance of hardfacing alloy layer greatly; Add more Cr element and improve the Cr/C ratio, easily generate the high rigidity M of isolated strip form
7C
3The type carbide, than the M of net distribution
3C type carbide can strengthen the continuity of matrix, thereby improves the toughness of integral material, high carbon ferro-chrome of the present invention is preferred 6.0～8.0%, metallic nickel is preferred 0.7～1.2%,
The Mn element can promote the dissolving of strong carbide in austenite, and the content of alloying element in balance carbide and the austenite is given full play to the precipitation strength and the solution strengthening ability of V, Nb and Mo element; In addition, improve Mn/C than the effect that can also play the formation that reduces grain boundary carbide, thereby improve the toughness of overlay cladding to a certain extent, but the Mn constituent content is unsuitable too high, otherwise can increase the temper brittleness of overlay cladding, mid-carbon fe-mn of the present invention preferred 1.2～1.6%.
The adding of rare earth has hardfacing alloy to suppress hydrogen embrittlement preferably, reduces temper brittleness and suppress P poly-partially ability on crystal boundary in heat treatment process, thereby reach the purpose of the toughness of raising hardfacing alloy.In addition, because rare earth has the effect that makes inclusion modification, purifies crystal boundary and stronger crystal grain thinning, join in the resurfacing welding material and can play the effect of improving the overlay cladding performance, rare earth of the present invention preferred 1.0～5.0%.
Si element deoxidizing capacity in the ferrosilicon is very strong, can form SiO with the FeO effect
2, enter slag then and be excluded; The Si element can improve the quenching degree and the intensity of surfacing layer metal, and improves its temper resistance, but the Si constituent content can not be too high, thereby otherwise easily produces grain boundary carbide and cause crackle.Ferrosilicon of the present invention preferred 0.80～1.5%.
The main component of fluorite is CaF
2, it can reduce the fusing point and the viscosity of slag, increases flowability, is beneficial to slag making; It can reduce the hydrogen dividing potential drop in the arc atmosphere, causes hydrogen content minimizing in the weld metal, improves the toughness and the anti-crack ability of weld metal.Fluorite of the present invention preferred 4.5～10.5%.
Embodiment 1:
Medicine core component content by weight percentage comprises: mid-carbon fe-mn: high carbon ferro-chrome 1.2%: molybdenum-iron 6.0%: vanadium iron 1.0%: 0.7%, ferro-niobium 0.06%, ferrotungsten: ferrotianium 1.0%: metallic nickel 0.05%: ferrosilicon 0.7%: rare earth 0.80%: fluorite 1.0%: iron powder 4.5%: surplus.
The hardness of the surfacing layer metal of produced welding wire is greater than HRC55.
Embodiment 2:
Medicine core component content by weight percentage comprises: mid-carbon fe-mn: high carbon ferro-chrome 1.6%: molybdenum-iron 8.0%: vanadium iron 3.0%: 1.5%, ferro-niobium 0.16%, ferrotungsten: ferrotianium 2.8%: metallic nickel 0.09%: ferrosilicon 1.2%: rare earth 1.5%: fluorite 5.0%: iron powder 10.5%: surplus.
The surfacing layer metal hardness of produced welding wire is HRC59.
Embodiment 3:
Medicine core component content by weight percentage comprises: mid-carbon fe-mn: high carbon ferro-chrome 1.4%: molybdenum-iron 7.5%: vanadium iron 2.0%: 1.2%, ferro-niobium 0.08%, ferrotungsten: ferrotianium 2.0%: metallic nickel 0.07%: ferrosilicon 1.0%: rare earth 1.1%: fluorite 4.0%: iron powder 8.0%: surplus.
The surfacing layer metal hardness of produced welding wire is HRC57.
Embodiment 4:
Medicine core component content by weight percentage comprises: mid-carbon fe-mn: high carbon ferro-chrome 1.5%: molybdenum-iron 8.0%: vanadium iron 2.8%: 1.2%, ferro-niobium 0.12%, ferrotungsten: ferrotianium 2.4%: metallic nickel 0.06%: ferrosilicon 1.0%: rare earth 1.3%: fluorite 3.0%: iron powder 6.0%: surplus.
The surfacing layer metal hardness of produced welding wire is HRC58.
Claims (6)
1, repair cold-rolling intermediate calender rolls working lining flux-cored wire, comprise crust and medicine core, it is characterized in that: the component of described medicine core content by weight percentage comprises: mid-carbon fe-mn: 1.2～1.6%, high carbon ferro-chrome: 6.0～8.0%, molybdenum-iron: 1.0～3.0%, vanadium iron: 0.7～1.5%, ferro-niobium 0.06～0.16%, ferrotungsten: 1.0～2.8%, ferrotianium: 0.05～0.09%, metallic nickel: 0.7～1.2%, ferrosilicon: 0.80～1.5%, rare earth: 1.0～5.0%, fluorite: 4.5～10.5%, all the other are iron powders.
2, repair cold-rolling intermediate calender rolls working lining flux-cored wire as claimed in claim 1, it is characterized in that: the granularity (order) of described medicine core component is respectively: mid-carbon fe-mn: 80～120, high carbon ferro-chrome: 80～120, molybdenum-iron: 80～120, vanadium iron: 60～120, ferro-niobium: 80～120, ferrotungsten: 60～120, ferrotianium: 60～120, metallic nickel: 80～120, ferrosilicon: 60～120, rare earth: 80～120, fluorite: 60～120, iron powder: 80～120.
3, the described repair cold-rolling intermediate calender rolls of claim 1 working lining is characterized in that: may further comprise the steps: after the oven dry of 1) cold-rolled strip being with, being deoiled through cutting out, be rolled into " U " type with the manufacture method of flux-cored wire; 2) preparation medicine core batching and oven dry; 3) with being rolled into " O " type behind the filling medicine core in steel band " U " the type groove, be drawn into flux-cored wire then.
4, the repair cold-rolling intermediate calender rolls working lining as claimed in claim 3 manufacture method of flux-cored wire, it is characterized in that: the described cold-rolled strip of step 1 is that thickness is that 0.3～0.8mm, width are the cold-rolled strip of 8.0～16.0mm.
5, repair cold-rolling intermediate calender rolls working lining as claimed in claim 4 is characterized in that: described cold-rolled strip employing H08A cold-rolled strip with the manufacture method of flux-cored wire.
6, the repair cold-rolling intermediate calender rolls working lining as claimed in claim 3 manufacture method of flux-cored wire, it is characterized in that: the described flux-cored wire of step 3 is that diameter is the flux-cored wire of 2.0～5.0mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610021798 CN1923435A (en) | 2006-09-08 | 2006-09-08 | Pile-up welding flux-cored wire for restoring cold rolling intermediate roller operational layer and method for manufacturing same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610021798 CN1923435A (en) | 2006-09-08 | 2006-09-08 | Pile-up welding flux-cored wire for restoring cold rolling intermediate roller operational layer and method for manufacturing same |
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| CN1923435A true CN1923435A (en) | 2007-03-07 |
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| CN 200610021798 Pending CN1923435A (en) | 2006-09-08 | 2006-09-08 | Pile-up welding flux-cored wire for restoring cold rolling intermediate roller operational layer and method for manufacturing same |
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Cited By (23)
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|---|---|---|---|---|
| CN100496865C (en) * | 2007-12-17 | 2009-06-10 | 徐龙江 | High-wearing high performance-cost ratio flux-cored wire |
| CN101456104B (en) * | 2008-10-13 | 2010-10-20 | 攀钢集团研究院有限公司 | Flux-cored wire for building up cold-rolling middle roller working layer and preparation method thereof |
| CN101391349B (en) * | 2007-09-22 | 2011-06-01 | 贵州航天南海机电有限公司 | Roller molding device for producing section overlap welding-wire |
| CN102139422A (en) * | 2010-02-02 | 2011-08-03 | 北京赛亿科技股份有限公司 | Transitional layer self-protecting metal core surfacing welding wire for repairing cold-rolled backup roller |
| CN102689106A (en) * | 2012-06-12 | 2012-09-26 | 中冶焊接科技有限公司 | Vertical electro-gas welding metal-cored flux-cored welding wire for petroleum storage tank |
| CN102744533A (en) * | 2012-07-05 | 2012-10-24 | 武汉宇宙科技有限公司 | Build-up welding flux-cored wire for pinch roll |
| 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 |
| CN103586594A (en) * | 2013-10-31 | 2014-02-19 | 天津大学 | Gas shield metal core welding wire used for high-strength steel welding based on ULCB structure |
| CN104308390A (en) * | 2014-09-02 | 2015-01-28 | 湘潭大学 | Flux-cored wire for in-situ synthesis of WC (wolfram carbide) particle reinforced iron-based composite coating and preparation method for flux-cored wire |
| CN105414806A (en) * | 2010-11-24 | 2016-03-23 | 天津三英焊业股份有限公司 | Flux-cored welding wire integrated molding machine set and flux-cored welding wire production method |
| CN106141485A (en) * | 2016-07-29 | 2016-11-23 | 安徽飞狐焊业股份有限公司 | A kind of high-performance flux-cored wire |
| CN106624447A (en) * | 2016-12-27 | 2017-05-10 | 秦皇岛鸿翔焊业有限公司 | Flux-cored wire for overlaying repair remanufacturing of two intermediate rollers of Sendzimir mill and manufacturing method thereof |
| CN106944768A (en) * | 2017-04-12 | 2017-07-14 | 广东省焊接技术研究所（广东省中乌研究院） | A kind of flux-cored wire suitable for plasma-arc built-up welding |
| CN107511477A (en) * | 2017-08-19 | 2017-12-26 | 芜湖鼎瀚再制造技术有限公司 | The build-up welding continuous-casting casting rod and its welding procedure of a kind of steel rolling guide roller |
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| CN109434321A (en) * | 2018-11-28 | 2019-03-08 | 东莞理工学院 | A kind of submerged-arc welding flux-cored wire and preparation method thereof |
| CN110539101A (en) * | 2019-09-29 | 2019-12-06 | 鞍钢集团北京研究院有限公司 | Open arc self-protection flux-cored wire for continuous casting roller surfacing of fan-shaped section of continuous casting machine and manufacturing method thereof |
| CN110883446A (en) * | 2019-12-17 | 2020-03-17 | 四川国鑫机械制造有限公司 | Flux-cored wire for roller repair and preparation method |
| CN112975206A (en) * | 2021-03-13 | 2021-06-18 | 江苏东南焊材有限公司 | Tough flux-cored wire and preparation method thereof |
| CN114523229A (en) * | 2021-12-24 | 2022-05-24 | 河海大学 | Wear-resistant flux-cored wire and preparation method and surfacing process thereof |
| CN115255807A (en) * | 2022-07-20 | 2022-11-01 | 北京晟鼎新材料科技有限公司 | Long-life surfacing repair and composite manufacturing method for axial roller and main roller of ring forging mill |
| CN115815868A (en) * | 2023-02-20 | 2023-03-21 | 天津市金桥焊材科技有限公司 | Fe-based high-temperature surfacing flux-cored wire |
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| CN101391349B (en) * | 2007-09-22 | 2011-06-01 | 贵州航天南海机电有限公司 | Roller molding device for producing section overlap welding-wire |
| CN100496865C (en) * | 2007-12-17 | 2009-06-10 | 徐龙江 | High-wearing high performance-cost ratio flux-cored wire |
| CN101456104B (en) * | 2008-10-13 | 2010-10-20 | 攀钢集团研究院有限公司 | Flux-cored wire for building up cold-rolling middle roller working layer and preparation method thereof |
| CN102139422A (en) * | 2010-02-02 | 2011-08-03 | 北京赛亿科技股份有限公司 | Transitional layer self-protecting metal core surfacing welding wire for repairing cold-rolled backup roller |
| CN105414806B (en) * | 2010-11-24 | 2017-10-20 | 天津三英焊业股份有限公司 | Flux-cored wire integrated molding unit and flux-cored wire production method |
| CN105414806A (en) * | 2010-11-24 | 2016-03-23 | 天津三英焊业股份有限公司 | Flux-cored welding wire integrated molding machine set and flux-cored welding wire production method |
| CN102689106B (en) * | 2012-06-12 | 2014-07-02 | 中冶焊接科技有限公司 | Vertical electro-gas welding metal-cored flux-cored welding wire for petroleum storage tank |
| CN102689106A (en) * | 2012-06-12 | 2012-09-26 | 中冶焊接科技有限公司 | Vertical electro-gas welding metal-cored flux-cored welding wire for petroleum storage tank |
| CN102744533A (en) * | 2012-07-05 | 2012-10-24 | 武汉宇宙科技有限公司 | Build-up welding flux-cored wire for pinch roll |
| CN102744533B (en) * | 2012-07-05 | 2016-01-20 | 武汉宇宙科技有限公司 | A kind of pinch roll flux-cored wire |
| 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 |
| CN103586594A (en) * | 2013-10-31 | 2014-02-19 | 天津大学 | Gas shield metal core welding wire used for high-strength steel welding based on ULCB structure |
| CN103586594B (en) * | 2013-10-31 | 2016-06-08 | 天津大学 | The gas shielded metal core welding wire for high-strength steel welding based on ULCB tissue |
| CN104308390B (en) * | 2014-09-02 | 2017-07-21 | 湘潭大学 | The flux-cored wire and preparation method of fabricated in situ WC particle enhancing iron-based composite coating |
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| CN109434321B (en) * | 2018-11-28 | 2020-10-27 | 东阳市鑫联工业设计有限公司 | Submerged arc welding flux-cored wire and preparation method thereof |
| CN109434321A (en) * | 2018-11-28 | 2019-03-08 | 东莞理工学院 | A kind of submerged-arc welding flux-cored wire and preparation method thereof |
| CN110539101A (en) * | 2019-09-29 | 2019-12-06 | 鞍钢集团北京研究院有限公司 | Open arc self-protection flux-cored wire for continuous casting roller surfacing of fan-shaped section of continuous casting machine and manufacturing method thereof |
| CN110883446A (en) * | 2019-12-17 | 2020-03-17 | 四川国鑫机械制造有限公司 | Flux-cored wire for roller repair and preparation method |
| CN112975206A (en) * | 2021-03-13 | 2021-06-18 | 江苏东南焊材有限公司 | Tough flux-cored wire and preparation method thereof |
| CN114523229A (en) * | 2021-12-24 | 2022-05-24 | 河海大学 | Wear-resistant flux-cored wire and preparation method and surfacing process thereof |
| CN114523229B (en) * | 2021-12-24 | 2022-11-04 | 河海大学 | Wear-resistant flux-cored wire and preparation method and surfacing process thereof |
| CN115255807A (en) * | 2022-07-20 | 2022-11-01 | 北京晟鼎新材料科技有限公司 | Long-life surfacing repair and composite manufacturing method for axial roller and main roller of ring forging mill |
| CN115255807B (en) * | 2022-07-20 | 2024-04-09 | 北京晟鼎新材料科技有限公司 | Long-life surfacing repair and composite manufacturing method for axial roller and main roller of ring rolling mill |
| CN115922143A (en) * | 2022-12-09 | 2023-04-07 | 山东聚力焊接材料有限公司 | Flux-cored wire for backing BD roller repair and preparation method thereof |
| CN115815868A (en) * | 2023-02-20 | 2023-03-21 | 天津市金桥焊材科技有限公司 | Fe-based high-temperature surfacing flux-cored wire |
| CN115815868B (en) * | 2023-02-20 | 2023-06-23 | 天津市金桥焊材科技有限公司 | Fe-based high-temperature surfacing flux-cored wire |
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