CN107414343A - The built-up welding of hot extrusion pressure roller submerged-arc welding flux cored wire and its welding procedure - Google Patents

The built-up welding of hot extrusion pressure roller submerged-arc welding flux cored wire and its welding procedure Download PDF

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Publication number
CN107414343A
CN107414343A CN201710714789.0A CN201710714789A CN107414343A CN 107414343 A CN107414343 A CN 107414343A CN 201710714789 A CN201710714789 A CN 201710714789A CN 107414343 A CN107414343 A CN 107414343A
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CN
China
Prior art keywords
welding
pressure roller
hot extrusion
extrusion pressure
submerged
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201710714789.0A
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Chinese (zh)
Inventor
程敬卿
薛卫昌
周乾坤
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WUHU DINGHAN REMANUFACTURING TECHNOLOGY Co Ltd
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WUHU DINGHAN REMANUFACTURING TECHNOLOGY Co Ltd
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Priority to CN201710714789.0A priority Critical patent/CN107414343A/en
Publication of CN107414343A publication Critical patent/CN107414343A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24Selection of soldering or welding materials proper
    • B23K35/30Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3053Fe as the principal constituent
    • B23K35/3093Fe as the principal constituent with other elements as next major constituents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/04Welding for other purposes than joining, e.g. built-up welding

Abstract

The present invention relates to the built-up welding of hot extrusion pressure roller submerged-arc welding flux cored wire and its welding procedure, include the component of following mass percent:Rare earth gadolinium powder is 0.2~0.4%, silicomangan powder is 3~5%, medium carbon ferrochrome powder is 4~6%, silicon metal is 1~1.5%, Mo is 2~3%, high purity tungsten is 1.5~2%, ferro-boron powder is surplus.Surfacing layer of the present invention is ferrite and martensite, has abrasion, impact resistance, wear-resisting grinding abrasion and thermal fatigue property between good resistance to metal.Welding performance is excellent, can multilayer welding occur without crackle.While realizing to hot extrusion pressure roller repairing sizes, moreover it is possible to further improve the performance of hot extrusion pressure roller, extend the service life of hot extrusion pressure roller.

Description

The built-up welding of hot extrusion pressure roller submerged-arc welding flux cored wire and its welding procedure
Technical field
The present invention relates to processing technique field is remanufactured, specifically the built-up welding of hot extrusion pressure roller with submerged-arc welding flux cored wire and Its welding procedure.
Background technology
Hot extrusion is that metal material is heated into hot forging forming temperature to be extruded, i.e., before extrusion by blank heating to gold The extruding carried out at a temperature of some more than recrystallization temperature of category.Hot extrusion pressure roller is one of important part of hot extrusion, During long-term use, hot extrusion pressure roller can be caused a certain degree of abrasion occur, so as to cause hot extrusion precise decreasing, very To generation waste product.Therefore need timely to change and wear more serious hot extrusion pressure roller, one side maintenance cost is high, on the other hand Hot extrusion pressure roller after abrasion can be dropped, and cause the serious wasting of resources.
The content of the invention
In order to solve deficiency of the prior art, the present invention proposes the built-up welding of hot extrusion pressure roller submerged-arc welding flux cored wire and its weldering Connect technique.
The technical problems to be solved by the invention are realized using following technical scheme:
Hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire, include the component of following mass percent:
The ferro-boron powder includes the component of following mass percent:B is 19.0~21.0%, C is 0~1%, Si be 1~ 3%th, Al is 0~1%, S is 0~0.03%, P is 0~0.10%, Mn is 0~0.50%, Cu is 0~0.1%, Fe is surplus.
Ferro-boron powder is strong deoxidier and the boron element addition agent in STEELMAKING PRODUCTION.Maximum effect of the boron in steel is only to need pole It is micro to be remarkably improved quenching degree and substitute a large amount of alloying elements, it can also improve mechanical property, cold deformation energy, welding in addition Performance and high-temperature behavior etc..
The quenching degree that B is remarkably improved steel is added in steel.Boron is added in stainless steel can make precipitation-hardening by processing, change Kind elevated temperature strength and hardness.Boron can influence graphitization in cast iron, thus the depth for increasing spoken parts in traditional operas makes its chill wear-resisting.Malleable Boron is added in cast iron, spheroidal graphite is advantageously formed and improves its distribution situation.
The silicomangan powder includes the component of following mass percent:Si is 12~16%, P is 0.1~0.3%, C is 1~3%, S be 0~1%, Mn be surplus.Silicomangan powder is the conventional double deoxidizer of steel-making, is production medium-low carbon ferromanganese again With the reduction of electro silicothermic process production manganese metal.
The mesh number of the rare earth gadolinium powder is 200 mesh or 300 mesh, for alloy addition, can improve the intensity of alloy, extend Rate, heat resistance and electric conductivity, it may also be used for polishing powder.
The welding procedure of hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire, the welding procedure are:Welding wire is passed through into welding machine Heap is welded in workpiece surface.
Greasy dirt, the rust at workpiece built-up welding should be removed before built-up welding.
Welding wire should be bakeed before built-up welding.
Need to be preheating to more than 300 DEG C weldings again before welding for large-scale workpiece.
Voltage is 34~36V during welding, and weldering speed is 300~450mm/min, and interlayer preheating temperature is 220~280 DEG C;
Destressing processing is carried out after welding, i.e., is 450 DEG C into furnace temperature, handles 8 hours.
For Φ 3.2 welding wire, electric current selects 300~330A;For Φ 4.0 welding wire, electric current selects 350~450A.
The beneficial effects of the invention are as follows:Surfacing layer of the present invention is ferrite and martensite, has good resistance to metal Between abrasion, impact resistance, wear-resisting grinding abrasion and thermal fatigue property.Welding performance is excellent, can multilayer welding occur without crackle.In realization pair While hot extrusion pressure roller repairing sizes, moreover it is possible to further improve the performance of hot extrusion pressure roller, extend the service life of hot extrusion pressure roller.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, below it is right The present invention is expanded on further.
Embodiment one:
Hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire, include the component of following mass percent:
The ferro-boron powder includes the component of following mass percent:B is 19.0%, C 1%, Si 3%, Al are 0.1%th, S 0.01%, P 0.10%, Mn 0.50%, Cu 0.1%, Fe are surplus.
The silicomangan powder includes the component of following mass percent:Si is 12%, P 0.3%, C 3%, S are 1%th, Mn is surplus.
The mesh number of the rare earth gadolinium powder is 200 mesh or 300 mesh.
The welding procedure of hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire, the welding procedure are:Welding wire is passed through into welding machine Heap is welded in workpiece surface.
Greasy dirt, the rust at workpiece built-up welding should be removed before built-up welding.
Welding wire should be bakeed before built-up welding.
Need to be preheating to more than 300 DEG C weldings again before welding for large-scale workpiece.
Voltage is 34-36V during welding, and weldering speed is 300~450mm/min, and interlayer preheating temperature is 220~280 DEG C;
Destressing processing is carried out after welding, i.e., is 450 DEG C into furnace temperature, handles 8 hours.
For Φ 3.2 welding wire, electric current selects 300~330A;For Φ 4.0 welding wire, electric current selects 350~450A.
Embodiment two:
Hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire, include the component of following mass percent:
The ferro-boron powder includes the component of following mass percent:B is 21.0%, C 0.2%, Si 1%, Al are 1%th, S 0.03%, P 0.05%, Mn 0.1%, Cu 0.02%, Fe are surplus.
The silicomangan powder includes the component of following mass percent:Si is 16%, P 0.1%, C 1%, S are 1%th, Mn is surplus.
The mesh number of the rare earth gadolinium powder is 200 mesh or 300 mesh.
The welding procedure of hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire, the welding procedure are:Welding wire is passed through into welding machine Heap is welded in workpiece surface.
Greasy dirt, the rust at workpiece built-up welding should be removed before built-up welding.
Welding wire should be bakeed before built-up welding.
Need to be preheating to more than 300 DEG C weldings again before welding for large-scale workpiece.
Voltage is 34~36V during welding, and weldering speed is 300~450mm/min, and interlayer preheating temperature is 220~280 DEG C;
Destressing processing is carried out after welding, i.e., is 450 DEG C into furnace temperature, handles 8 hours.
For Φ 3.2 welding wire, electric current selects 300~330A;For Φ 4.0 welding wire, electric current selects 350~450A.
Embodiment three:
Hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire, include the component of following mass percent:
The ferro-boron powder includes the component of following mass percent:B is 20%, C 0.6%, Si 2%, Al are 0.6%th, S 0.02%, P 0.08%, Mn 0.3%, Cu 0.06%, Fe are surplus.
The silicomangan powder includes the component of following mass percent:Si is 14%, P 0.2%, C 2%, S are 0.8%th, Mn is surplus.
The mesh number of the rare earth gadolinium powder is 200 mesh or 300 mesh.
The welding procedure of hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire, the welding procedure are:Welding wire is passed through into welding machine Heap is welded in workpiece surface.
Greasy dirt, the rust at workpiece built-up welding should be removed before built-up welding.
Welding wire should be bakeed before built-up welding.
Need to be preheating to more than 300 DEG C weldings again before welding for large-scale workpiece.
Voltage is 34~36V during welding, and weldering speed is 300~450mm/min, and interlayer preheating temperature is 220~280 DEG C;
Destressing processing is carried out after welding, i.e., is 450 DEG C into furnace temperature, handles 8 hours.
For Φ 3.2 welding wire, electric current selects 300~330A;For Φ 4.0 welding wire, electric current selects 350~450A.
Layer made of the present invention, normal temperature hardness are not less than HRC44, ensure good hardness.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry For personnel it should be appreciated that the present invention is not limited by step embodiment, that described in step embodiment and specification is the present invention Principle, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these change and Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent Thing defines.

Claims (10)

1. hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire, it is characterised in that:Include the component of following mass percent:
2. hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire according to claim 1, it is characterised in that:The ferro-boron powder bag Include the component of following mass percent:B is 19.0~21.0%, C is 0~1%, Si is 1~3%, Al is 0~1%, S be 0~ 0.03%th, P is 0~0.10%, Mn is 0~0.50%, Cu is 0~0.1%, Fe is surplus.
3. hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire according to claim 1, it is characterised in that:The silicomangan Powder includes the component of following mass percent:Si is 12~16%, P is 0.1~0.3%, C is 1~3%, S is 0~1%, Mn For surplus.
4. hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire according to claim 1, it is characterised in that:The rare earth gadolinium powder Mesh number be 200 mesh or 300 mesh.
5. the welding procedure of hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire according to any one of claim 1 to 4, its It is characterised by:The welding procedure is:Welding wire is welded in workpiece surface by welding machine heap.
6. the welding procedure of hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire according to claim 5, it is characterised in that: Greasy dirt, the rust at workpiece built-up welding should be removed before built-up welding.
7. the welding procedure of hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire according to claim 5, it is characterised in that:Heap Welding wire should be bakeed before weldering.
8. the welding procedure of hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire according to claim 5, it is characterised in that:It is right Need to be preheating to more than 300 DEG C weldings again before large-scale workpiece welding.
9. the welding procedure of hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire according to claim 5, it is characterised in that:Weldering Destressing processing is carried out after connecing, i.e., is 450 DEG C into furnace temperature, handles 8 hours.
10. the welding procedure of hot extrusion pressure roller built-up welding submerged-arc welding flux cored wire according to claim 5, it is characterised in that: For Φ 3.2 welding wire, electric current selects 300~330A;For Φ 4.0 welding wire, electric current selects 350~450A, electricity during welding It is 300~450mm/min to press as 34-36V, weldering speed, and interlayer preheating temperature is 220~280 DEG C.
CN201710714789.0A 2017-08-19 2017-08-19 The built-up welding of hot extrusion pressure roller submerged-arc welding flux cored wire and its welding procedure Withdrawn CN107414343A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1714987A (en) * 2005-07-06 2006-01-04 湘潭大学 High chromium rust free, wear resistance cored welding wire
CN101407002A (en) * 2008-11-28 2009-04-15 中国电力科学研究院 Back slag self-protecting flux-cored wire for T92/P92 steel tungsten electrode argon arc backing weld
CN101456123A (en) * 2008-12-25 2009-06-17 山东临工工程机械有限公司 Method for realizing abrasion proof treatment to loader hopper and special welding wire thereof
CN101524789A (en) * 2009-04-22 2009-09-09 北京佳倍德工程技术有限公司 Sleeve-friendly wear-resistant strip flux-cored wire
CN103628017A (en) * 2013-12-12 2014-03-12 江西恒大高新技术股份有限公司 B-C compound hard phase wear-resistant electric arc spraying cored wire
CN104195362A (en) * 2014-08-15 2014-12-10 北京工业大学 Preparation method of high-boron and wear-resistant alloy
CN104400259A (en) * 2014-10-27 2015-03-11 武汉铁锚焊接材料股份有限公司 High-hardness hardfacing electrode
CN105945456A (en) * 2016-04-22 2016-09-21 郑州机械研究所 Heat-resisting and wear-resisting flux-cored wire

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1714987A (en) * 2005-07-06 2006-01-04 湘潭大学 High chromium rust free, wear resistance cored welding wire
CN101407002A (en) * 2008-11-28 2009-04-15 中国电力科学研究院 Back slag self-protecting flux-cored wire for T92/P92 steel tungsten electrode argon arc backing weld
CN101456123A (en) * 2008-12-25 2009-06-17 山东临工工程机械有限公司 Method for realizing abrasion proof treatment to loader hopper and special welding wire thereof
CN101524789A (en) * 2009-04-22 2009-09-09 北京佳倍德工程技术有限公司 Sleeve-friendly wear-resistant strip flux-cored wire
CN103628017A (en) * 2013-12-12 2014-03-12 江西恒大高新技术股份有限公司 B-C compound hard phase wear-resistant electric arc spraying cored wire
CN104195362A (en) * 2014-08-15 2014-12-10 北京工业大学 Preparation method of high-boron and wear-resistant alloy
CN104400259A (en) * 2014-10-27 2015-03-11 武汉铁锚焊接材料股份有限公司 High-hardness hardfacing electrode
CN105945456A (en) * 2016-04-22 2016-09-21 郑州机械研究所 Heat-resisting and wear-resisting flux-cored wire

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