CN102085605B - Flux-cored wire used for submerged arc surfacing repair of furnace bed roll - Google Patents
Flux-cored wire used for submerged arc surfacing repair of furnace bed roll Download PDFInfo
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- CN102085605B CN102085605B CN2009102420054A CN200910242005A CN102085605B CN 102085605 B CN102085605 B CN 102085605B CN 2009102420054 A CN2009102420054 A CN 2009102420054A CN 200910242005 A CN200910242005 A CN 200910242005A CN 102085605 B CN102085605 B CN 102085605B
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Abstract
The invention discloses a flux-cored wire used for submerged arc surfacing repair of a furnace bed roll, relating to the welding material technology. An external steel strip of the flux-cored wire is a 00Cr17 ferric stainless steel strip, and the flux of the flux-cored wire comprises the following components in percent by weight: 30-40 percent of metal chromium, 30-40 percent of metal nickel, 5-10 percent of metal manganese, 2-5 percent of high-carbon ferrochrome, 0.5-3 percent of rare earth ferrosilicon, 5-10 percent of fluoride, 2-5 percent of aluminium magnesium alloy, 1-1.5 percent of graphite, less than 1 percent of ferrotitanium and the balance of iron powder. By adopting the flux-cored wire disclosed by the invention, the continuous operation of the submerged arc surfacing repair of the furnace bed roll can be realized, and the technical difficulty of high hot crack sensitivity of a pure austenite weld joint is solved. The flux-cored wire disclosed by the invention has an excellent welding process performance, and can be widely applied to the submerged arc surfacing repair of the furnace bed roll.
Description
Technical field
The present invention relates to technical field of welding materials, is a kind of flux-cored wire that the hearth roll submerged arc overlay welding is repaired that is used for, and not only can be used for submerged arc overlay welding and repair hearth roll, and also can be used for Cr25Ni20 is stainless submerged arc welding.
Background technology
Hearth roll is one of spare part in common of steel industry.Steel mill's continuous annealing furnace, normalizing furnace etc. all need to use in a large number hearth roll, are used to carry the steel plate that need heat-treat.In use; Hearth roll bears (950 ℃ of furnace high-temperatures; Reach as high as 1100 ℃) and the high temperature steel plate to its fretting wear (steel plate reaches 50m/s in the speed of service on hearth roll surface), this just requires hearth roll to have performances such as higher high temperature strength, high-temperature oxidation resistance, high-temperature wearable.
Mostly the material that is used to make hearth roll is that Cr25Ni20 is pure austenitic high chromium nickel stainless steel.The main failure forms of hearth roll is surface cord, bending etc., and is the most common with surface cord.In case the furnace bottom roll surface forms dross, can make the steel surface that is in the condition of high temperature produce impression and scuffing, reduce steel product quality.Be generally about 1 year the service life of hearth roll.Because the manufactured materials of hearth roll is the stainless steel material of high chromium nickel, the back waste treatment of rolling off the production line will inevitably be wasted a large amount of alloying elements.
Summary of the invention
The purpose of this invention is to provide a kind of flux-cored wire that the hearth roll submerged arc overlay welding is repaired that is used for; Be high chromiumnickel austenite stainless steel flux-cored wire; Not only solved the technology difficult problem of high chromiumnickel austenite stainless steel flux-cored wire processing; And the welding technological properties of welding wire is good, and hot tearing sensitiveness is low, has realized the continuous built-up welding reparation of hearth roll.
For achieving the above object, technical solution of the present invention is:
A kind of flux-cored wire that is used for the reparation of hearth roll submerged arc overlay welding, its medicine core is made up of alloyed powder and mineral matter powder, and the percentage by weight ratio of alloyed powder and mineral matter powder is: crome metal: 30～40%; Metallic nickel: 30～40%, manganese metal: 5～10%, high carbon ferro-chrome: 2～5%; Rare ferrosilicon of going up: 0.5～3%, fluoride: 5～10%, almag: 2～5%; Graphite: 1～1.5%, ferrotianium:＜1%, all the other are iron powder.
The flux-cored wire that described hearth roll submerged arc overlay welding is repaired, its used external application steel band is the 00Cr17 ferritic stainless steel band.
The flux-cored wire that described hearth roll submerged arc overlay welding is repaired, the medicinal powder of its said medicine core accounts for 48～52% of welding wire gross weight.
The flux-cored wire that described hearth roll submerged arc overlay welding is repaired, the manganese silicon ratio of its flux-cored wire deposited metal is 1.5～2.3.
The flux-cored wire that described hearth roll submerged arc overlay welding is repaired, its diameter is φ 2.4mm～2.8mm.
Adopt welding wire of the present invention can realize working continuously of hearth roll built-up welding reparation, and solved the high technical barrier of pure austenitic weld seam fire check sensitiveness, the welding technological properties of welding wire of the present invention is good, and the submerged arc overlay welding that can be widely used in hearth roll is repaired built-up welding.
The specific embodiment
A kind of flux-cored wire that the hearth roll submerged arc overlay welding is repaired that is used for of the present invention is repaired the big technical problem of difficulty for solving the efficient built-up welding of hearth roll.
The problem that the present invention solved is problem and the producing process problem of high chromium nickel stainless steel flux-cored wire of the high hot tearing sensitiveness of the single-phase austenitic stainless steel of high chromium nickel (Cr25Ni20) welding.For preventing to reduce the hot tearing sensitiveness of hearth roll welding wire; Avoid producing in the weld seam fire check; The present invention adds rare earth element and ferrotianium in right amount through rationally adjusting the alloying component of welding wire deposited metal, and through the rational manganese silicon ratio of control; Reduce hot tearing sensitiveness to reach, avoid the purpose of HOT CRACK FOR WELDING P; For solving the producing process problem of high chromium nickel stainless steel flux-cored wire, it is the external application steel band of flux-cored wire that the present invention has adopted the 00Cr17 ferritic stainless steel band.
The chromium equivalent of Cr25Ni20 series austenitic stainless steel and nickel equivalent ratio are less than 1.5; The weld(ing) deposit be organized as single-phase austenite; Weld seam in the process of setting is owing to lack second phase, and low melting point eutectic such as sulfide is prone to form liquid film at crystal boundary in the weld seam, causes weld seam fire check to occur.Welding wire involved in the present invention is on the basis of Cr25-Ni20 alloy system, and the chemical composition through adjustment welding wire deposited metal at first guarantees its heat resistance and high-temperature oxidation resistance.An amount of extremely strong rare earth element of chemical activity that adds, rare earth element can combine with the objectionable impurities (like oxygen, sulphur, nitrogen) in the weld seam, forms dystectic sulfide etc., and makes its form change into sphere by film like, reduces the hot cracking tendency of weld seam.And an amount of titanium elements that adds can form spherical sulfide with the impurity element (like sulphur) in the weld seam on the one hand; Reduce hot cracking tendency, can be combined in the granular carbide of formation in the weld seam with carbon on the other hand, be present in the deposited metal mutually as second; Reduce impurity and gather partially, reduce hot cracking tendency.But the too high meeting of titanium addition causes weld metal to take off the slag difficulty.Manganese and element silicon add in the deposited metal by proper proportion, and both deoxidation products can form the manganese silicate that fusing point is low, density is little, are gathered into the big particle of radius and get in the slag, reduce the slag inclusion thing in the weld seam, reduce the crackle tendency.
The stainless flux-cored wire of high chromium nickel content is made in processing; If use traditional carbon steel band to be welding wire external application steel band; Guarantee the alloying component of deposited metal; Need increase considerably width of steel band and reduce the thickness of steel band, to improve the filling rate of welding wire medicinal powder, this will inevitably increase the manufacturing difficulty of welding wire.It is the welding wire crust that the present invention adopts the 00Cr17 ferritic stainless steel band, through steel band to the most of chromium element of weld(ing) deposit transition, thereby reduce welding wire medicinal powder filling rate, to guarantee the processing characteristics of welding wire.
A kind of flux-cored wire that the hearth roll submerged arc overlay welding is repaired that is used for of the present invention, it is formed as follows:
1, external application steel band: be 00Cr17 ferritic stainless steel steel band, transition chromium element in the built-up welding deposited metal.
2, welding wire medicine core:
Crome metal: transition chromium element in the built-up welding deposited metal, its mass percentage content is 30～40%;
Metallic nickel: transition nickel element in the built-up welding deposited metal, its mass percentage content are 30～40%;
Manganese metal: transition manganese element in the built-up welding deposited metal, and play deoxidation, desulfidation, its mass percentage content is 5～10%;
High carbon ferro-chrome: transition carbon and chromium element in the built-up welding deposited metal, its mass percentage content is 2～5%;
Rare earth ferrosilicon: an amount of transition element silicon in the built-up welding deposited metal, deoxidation, desulfurization, transition rare earth element in the built-up welding deposited metal simultaneously, to reduce built-up welding deposited metal hot tearing sensitive property, its mass percentage content is 0.5～3%;
Fluoride: dehydrogenation, improve arc performance, its mass percentage content is 5～10%;
Almag: play deoxidation, improve the transfer coefficient of alloying elements such as chromium, nickel, manganese, its mass percentage content is 2～5%;
Ferrotianium: with carbon stronger adhesion is arranged, deoxidation, crystal grain thinning is prone to cause deposited metal to take off the slag difficulty but addition is excessive, and its mass percentage content is no more than 1%.
Graphite: to deposited metal transition carbon, guarantee the mechanical behavior under high temperature of deposited metal, its mass percentage content is 1～1.5%.
A kind of flux-cored wire that the hearth roll submerged arc overlay welding is repaired that is used for of the present invention, it is made and adopts following steps:
1, the 00Cr17 ferritic stainless steel band is rolled into U-shaped, in U-lag, add the medicinal powder that accounts for welding wire gross weight 48～52% of the present invention;
2, U-lag is healed up after, by road drawing tube reducing, finally make its diameter reach φ 2.4mm～2.8mm through wire drawing die.
3, welding wire surface is cleared up, behind the removal wire-drawing lubrication powder, be final products.
Embodiment 1:
Select thickness 0.3mm for use, the 00Cr17 ferritic stainless steel of width 14mm rolls into the U type with it, uses crome metal 76g, metallic nickel 84g, high carbon ferro-chrome 6g, manganese metal 14g, fluoride 5g, rare earth ferrosilicon 2g, almag 6g, graphite 2.5g, ferrotianium 1.5g, iron powder 3g.Mixed back adds in the U type groove, and filling rate is 50%, and through healing up and tube reducing progressively, final diameter is φ 2.4mm.
Embodiment 2:
Select thickness 0.3mm for use, the 00Cr17 ferritic stainless steel of width 14mm rolls into the U type with it, uses crome metal 74g, metallic nickel 82g, high carbon ferro-chrome 6g, manganese metal 16g, fluoride 4g, rare earth ferrosilicon 2.5g, almag 5g, graphite 2.5g, ferrotianium 1g, iron powder 7g.Mixed back adds in the U type groove, and filling rate is 51%, and through healing up and tube reducing progressively, final diameter is φ 2.8mm.
Embodiment 3:
Select thickness 0.3mm for use, the 00Cr17 ferritic stainless steel of width 14mm rolls into the U type with it, uses crome metal 78g, metallic nickel 85g, high carbon ferro-chrome 6g, manganese metal 15g, fluoride 3g, rare earth ferrosilicon 3g, almag 5g, graphite 2.5g, ferrotianium 1g, iron powder 1.5g.Mixed back adds in the U type groove, and filling rate is 49%, and through healing up and tube reducing progressively, final diameter is φ 2.8mm.
The effect of repairing hearth roll with three embodiment welding wires of the present invention and traditional welding rod built-up welding compares, and is as shown in table 1:
Table 1
| Example | The tradition welding rod material | Example 1 | Example 2 | Example 3 |
| The Cr25Ni20 hearth roll is repaired in built-up welding | The center line crackle appears in weld seam | Zero defect | Zero defect | Zero defect |
It is thus clear that welding wire of the present invention cooperates alkalescent sintered flux to use, appearance of weld is attractive in appearance, and processing performance is good, and metallurgical imperfections such as flawless slag inclusion can be widely used in the submerged arc overlay welding reparation of hearth roll, and also can be used for Cr25Ni20 is stainless welding.
Claims (4)
1. one kind is used for the flux-cored wire that the hearth roll submerged arc overlay welding is repaired, and it is characterized in that: the medicine core is made up of alloyed powder and mineral matter powder, and the weight of alloyed powder and mineral matter powder is respectively:
Crome metal 76g, metallic nickel 84g, high carbon ferro-chrome 6g, manganese metal 14g, fluoride 5g, rare earth ferrosilicon 2g, almag 6g, graphite 2.5g, ferrotianium 1.5g, iron powder 3g; Perhaps
Crome metal 74g, metallic nickel 82g, high carbon ferro-chrome 6g, manganese metal 16g, fluoride 4g, rare earth ferrosilicon 2.5g, almag 5g, graphite 2.5g, ferrotianium 1g, iron powder 7g; Perhaps
Crome metal 78g, metallic nickel 85g, high carbon ferro-chrome 6g, manganese metal 15g, fluoride 3g, rare earth ferrosilicon 3g, almag 5g, graphite 2.5g, ferrotianium 1g, iron powder 1.5g.
2. the flux-cored wire of repairing according to the described hearth roll submerged arc overlay welding of claim 1 is characterized in that used external application steel band is the 00Cr17 ferritic stainless steel band.
3. the flux-cored wire of repairing according to claim 1 or 2 described hearth roll submerged arc overlay weldings is characterized in that the medicinal powder of said medicine core accounts for 48～52% of welding wire gross weight.
4. the flux-cored wire of repairing according to the described hearth roll submerged arc overlay welding of claim 1 is characterized in that diameter is φ 2.4mm～2.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102420054A CN102085605B (en) | 2009-12-02 | 2009-12-02 | Flux-cored wire used for submerged arc surfacing repair of furnace bed roll |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102420054A CN102085605B (en) | 2009-12-02 | 2009-12-02 | Flux-cored wire used for submerged arc surfacing repair of furnace bed roll |
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| Publication Number | Publication Date |
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| CN102085605A CN102085605A (en) | 2011-06-08 |
| CN102085605B true CN102085605B (en) | 2012-11-28 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103331532B (en) * | 2013-05-30 | 2015-05-27 | 中冶焊接科技有限公司 | Gas shielded flux-cored wire of ferrite stainless steel for surfacing |
| CN104588907B (en) * | 2014-12-09 | 2016-06-22 | 天津大桥金属焊丝有限公司 | A kind of transition zone built-up welding rustless steel open arc flux-cored wire |
| CN104646858B (en) * | 2015-02-12 | 2017-11-03 | 西安理工大学 | A kind of 1Ni9 low-temperature steels metal flux-cored wire and preparation method thereof |
| CN104858572B (en) * | 2015-03-31 | 2017-11-21 | 上海焊接器材有限公司 | A kind of metal-cored flux-cored wire of high chromium content ferrite stainless steel |
| CN104858567B (en) * | 2015-03-31 | 2017-07-25 | 上海焊接器材有限公司 | A kind of metal core welding wire welded for automobile exhaust pipe |
| CN106475730A (en) * | 2015-08-28 | 2017-03-08 | 宝山钢铁股份有限公司 | A kind of roll mill supporting surface on-line machining method |
| CN105643141B (en) * | 2016-04-15 | 2017-12-05 | 北京金威焊材有限公司 | The flux-cored wire of nickel-base alloy |
| CN106670681B (en) * | 2016-08-18 | 2019-06-21 | 新乡市和光科技有限公司 | A kind of metal powder type flux-cored wire suitable for plate sheet welding |
| CN112975208B (en) * | 2021-03-23 | 2022-05-31 | 北京工业大学 | Metal-cored welding wire for heat-resistant stainless steel submerged arc welding for magnesium smelting reduction tank |
| CN114289926B (en) * | 2022-03-07 | 2022-05-31 | 北京奥邦新材料有限公司 | High-niobium flux-cored wire for repairing hard surface of roller press and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4173457A (en) * | 1978-03-23 | 1979-11-06 | Alloys, Incorporated | Hardfacing composition of nickel-bonded sintered chromium carbide particles and tools hardfaced thereof |
| JP2003275893A (en) * | 2002-03-18 | 2003-09-30 | Nippon Steel & Sumikin Welding Co Ltd | Wire for submerged arc welding |
| CN101352786A (en) * | 2008-09-27 | 2009-01-28 | 北京金威焊材有限公司 | Submerged arc welding wire for stainless steel |
| CN101545088A (en) * | 2009-05-04 | 2009-09-30 | 吉林大学 | Iron-based flux-cored electric arc spray-melting wire |
-
2009
- 2009-12-02 CN CN2009102420054A patent/CN102085605B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4173457A (en) * | 1978-03-23 | 1979-11-06 | Alloys, Incorporated | Hardfacing composition of nickel-bonded sintered chromium carbide particles and tools hardfaced thereof |
| JP2003275893A (en) * | 2002-03-18 | 2003-09-30 | Nippon Steel & Sumikin Welding Co Ltd | Wire for submerged arc welding |
| CN101352786A (en) * | 2008-09-27 | 2009-01-28 | 北京金威焊材有限公司 | Submerged arc welding wire for stainless steel |
| CN101545088A (en) * | 2009-05-04 | 2009-09-30 | 吉林大学 | Iron-based flux-cored electric arc spray-melting wire |
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| CN102085605A (en) | 2011-06-08 |
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Effective date of registration: 20210222 Address after: 100088 Beijing city Haidian District Xitucheng Road No. 33 Patentee after: CHINA JINGYE ENGINEERING Co.,Ltd. Patentee after: CENTRAL RESEARCH INSTITUTE OF BUILDING AND CONSTRUCTION CO., LTD. MCC Group Address before: 100080 Beijing city Haidian District Xitucheng Road No. 33 Patentee before: ZHONGYE WELDING TECHNOLOGY Co.,Ltd. Patentee before: CENTRAL RESEARCH INSTITUTE OF BUILDING AND CONSTRUCTION CO., LTD. MCC Group |
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