CN107962314A - A kind of welding wire and its manufacture method - Google Patents

A kind of welding wire and its manufacture method Download PDF

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Publication number
CN107962314A
CN107962314A CN201610909862.5A CN201610909862A CN107962314A CN 107962314 A CN107962314 A CN 107962314A CN 201610909862 A CN201610909862 A CN 201610909862A CN 107962314 A CN107962314 A CN 107962314A
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CN
China
Prior art keywords
welding wire
powder
iron
medicine core
welding
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.)
Pending
Application number
CN201610909862.5A
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Chinese (zh)
Inventor
李卫东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuhai Aobang Welding Technology Co Ltd
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Zhuhai Aobang Welding Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhuhai Aobang Welding Technology Co Ltd filed Critical Zhuhai Aobang Welding Technology Co Ltd
Priority to CN201610909862.5A priority Critical patent/CN107962314A/en
Publication of CN107962314A publication Critical patent/CN107962314A/en
Pending 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
    • B23K35/3026Mn as the principal constituent
    • 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
    • B23K35/40Making wire or rods for soldering or welding

Abstract

The invention discloses a kind of welding wire and its manufacture method, the welding wire includes mild steel crust and medicine core, forms overlay cladding after the welding wire welding, the overlay cladding is made of following element:Count by weight percentage, C is that 0.05%~0.2%, Cr is that 9%~17%, Si is that 0.5%~1.5%, Mn is that 10%~20%, Mo is 0.5%~1%, Ni for 1% 2%, surplus Fe.During preparation, selection width is 12mm~16mm, the mild steel crust that thickness is 0.3mm~0.5mm, the mild steel crust is first rolled into U-lag, medicine core is added into U-lag again, then U-lag is healed up, make medicine core parcel wherein, the welding wire of a diameter of 2.4mm~2.8mm is then pulled to through drawing machine.The features such as there is the welding wire of the present invention overlay cladding formed after welding to be well combined with carbon steel and rich chromium cast iron overlay cladding, and mechanical performance is excellent, impact abrasion performance is superior.

Description

A kind of welding wire and its manufacture method
Technical field
The present invention relates to field of welding material, is specifically a kind of welding wire and its manufacture method.
Background technology
At present, the mechanical wearing piece of the industry such as electric power, cement, steel, mine mainly uses potassium steel and Gao Ge at this stage Cast iron series, wherein rich chromium cast iron series has the complex form for being divided into monoblock cast and carbon steel build-up wear-resistant layer.Carbon steel built-up welding is resistance to The complex form of mill layer needs to need transition zone between the carbon steel body of casting and the wearing layer of built-up welding, particularly the heap of roll squeezer , it is necessary to which the transition zone of big depth, very big for the welding wire demand of transition zone during repair welding is multiple.The transition that China generally uses at this stage Layer welding wire is 307,309 sequences of low carbon stainless steel.And stainless steel series generally comprises only the alloys such as carbon, chromium, silicon, manganese, nickel member Element, its different mechanical performance connect fully meet demand, but due to containing substantial amounts of chromium and nickel element, expensive, a large amount of uses Economy it is poor.The demand of the national economic development is not adapted to.
The content of the invention
It is an object of the invention to provide a kind of mechanical performance is excellent, the superior welding wire of impact abrasion performance and its manufacturer Method, adds a certain amount of manganese element on the basis of resurfacing welding material and substitutes nickel element and chromium, solved in stainless steel different connect Cross that layer welding wire is of high cost and hardness is small, the problem of wearing no resistance.
To achieve the above object, the present invention provides following technical solution:
A kind of welding wire, including mild steel crust and medicine core, form overlay cladding, the overlay cladding is by following member after the welding wire welding Element composition:Count by weight percentage, C be 0.05%~0.2%, Cr be 9%~17%, Si be 0.5%~1.5%, Mn be 10%~ 20%, Mo are 0.5%~1%, Ni 1%-2%, surplus Fe.
As the further scheme of the present invention:The medicine core weight is the 35%~65% of the welding wire weight.
As the further scheme of the present invention:The medicine core is made of following raw material:One in low-carbon ferrochromium and crome metal Kind or the two mixing, ferromanganese or one kind in silicomangan, molybdenum-iron, nickel powder, atomization ferrosilicon powder, iron powder.
As the further scheme of the present invention:The granularity of above-mentioned raw materials is the mesh of 65 mesh~80.The mesh of 65 mesh~80 refers to be less than The meaning of the mesh of 65 mesh~80.
As the further scheme of the present invention:The medicine core is made of following raw material:Count by weight percentage, low-carbon chromium Iron 40%, ferromanganese 43.5% or one kind in silicomangan 43.5%, molybdenum-iron 1.5%, nickel powder 2%, atomization ferrosilicon powder 5%, iron powder 8%.
As the further scheme of the present invention:The medicine core is made of following raw material:Count by weight percentage, low-carbon chromium Iron 38%, silicomangan 45%, molybdenum-iron 1%, nickel powder 1%, atomization ferrosilicon powder 5%, iron powder 10%.
As the further scheme of the present invention:The medicine core is made of following raw material:Count by weight percentage, low-carbon chromium Iron 35%, crome metal 3%, ferromanganese 45%, molybdenum-iron 3%, nickel powder 1%, atomization ferrosilicon powder 2%, iron powder 11%.
As the further scheme of the present invention:Welding uses open arc welding.
It is a further object of the present invention to provide a kind of manufacture method of welding wire, selection width is 12mm~16mm, thickness is The mild steel crust of 0.3mm~0.5mm, is first rolled into U-lag by the mild steel crust, then medicine core is added into U-lag, so U-lag is healed up afterwards, makes medicine core parcel wherein, the welding wire of a diameter of 2.4mm~2.8mm is then pulled to through drawing machine.
As the further scheme of the present invention:The medicine core weight is the 35%~65% of the welding wire weight.
As the further scheme of the present invention:The medicine core is made of following raw material:One in low-carbon ferrochromium and crome metal Kind or the two mixing, ferromanganese or one kind in silicomangan, molybdenum-iron, nickel powder, atomization ferrosilicon powder, iron powder.
Mn is that steel intensified element improves the intensity of steel by adding manganese in steel, and nickel and iron are infinitely dissolved, and are expanded The austenite region of big iron, molybdenum can not only form primary carbide with carbon, and can form proeutectoid carbide, reduce in austenite The concentration of carbon.Manganese and nickel are utilized in this welding wire, molybdenum, the comprehensive function of chromium forms stable austenite, effective to improve manganese ferrochrome system Retrospective and toughness so that the fusion good with rich chromium cast iron.
Mild steel refers generally to carbon content less than 0.25%(Count by weight percentage)Carbon steel.Ferrochrome is contained by its component The difference of carbon amounts can be divided into high-carbon, middle carbon and low-carbon, and wherein phosphorus content is more than 5%(Count by weight percentage)For high carbon ferro-chrome, Phosphorus content is in 0.5%-5%(Count by weight percentage)For medium carbon ferrochrome, phosphorus content is less than 0.5%(Count by weight percentage) For low-carbon ferrochromium." atomization " in atomization ferrosilicon powder refers to that it is produced with hydraulic atomized production during melting ferrosilicon During impurity content it is few, the price that sublimate is high, and the other methods that compare are smelted out is high.
Compared with prior art, the beneficial effects of the invention are as follows:
The overlay cladding formed after the welding wire welding of the present invention includes manganese, chromium, nickel, molybdenum element, since manganese, chromium, nickel, molybdenum element are common Effect forms the austenitic structure of little crystal grain, and the good mechanical toughness and plasticity of austenite can ensure and carbon steel, rich chromium cast iron Good combination, so as to play the purpose instead of 307 stainless steel welding sticks;The welding wire of the present invention has the overlay cladding formed after welding It is well combined with carbon steel and rich chromium cast iron overlay cladding, the features such as mechanical performance is excellent, impact abrasion performance is superior.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical solution in the embodiment of the present invention is clearly and completely described, Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based in the present invention Embodiment, those of ordinary skill in the art's all other embodiments obtained without making creative work, all Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, selection width is 16mm, the mild steel crust that thickness is 0.5mm, first by the mild steel crust U-lag is rolled into, then medicine core is added into U-lag, the medicine core is made of following raw material:Count by weight percentage, low-carbon Ferrochrome 40%, ferromanganese 43.5% or one kind in silicomangan 43.5%, molybdenum-iron 1.5%, nickel powder 2%, atomization ferrosilicon powder 5%, iron powder 8%. Taken raw material is sufficiently mixed uniformly, is then added raw materials into by powder feeder in U-lag, filling rate 48%, U-lag is closed Mouthful, raw material is included wherein, then pull to a diameter of 2.8 mm through drawing machine.
Overlay cladding is formed after welding wire welding, the overlay cladding includes following element:Count by weight percentage, C is 0.17%, Cr 16%, Si 1.5%, Mn 16%, Mo 0.7%, Ni 1.4%, surplus Fe.
Embodiment 2
In the embodiment of the present invention, selection width is 16mm, the mild steel crust that thickness is 0.5mm, first by the mild steel crust U-lag is rolled into, then medicine core is added into U-lag, the medicine core is made of following raw material:Count by weight percentage, low-carbon Ferrochrome 38%, silicomangan 45%, molybdenum-iron 1%, nickel powder 1%, atomization ferrosilicon powder 5%, iron powder 10%.Taken raw material is sufficiently mixed It is even, then added raw materials into by powder feeder in U-lag, filling rate 50%, U-lag is healed up, and raw material is included wherein, so A diameter of 2.8 mm is pulled to by drawing machine.
Overlay cladding is formed after welding wire welding, the overlay cladding includes following element:Count by weight percentage, C is 0.13%, Cr 15%, Si 1.5%, Mn 14.5%, Mo 0.5%, Ni 1.1%, surplus Fe.
Embodiment 3
In the embodiment of the present invention, selection width is 16mm, the mild steel crust that thickness is 0.35mm, first by the mild steel crust U-lag is rolled into, then medicine core is added into U-lag, the medicine core is made of following raw material:Count by weight percentage, low-carbon Ferrochrome 35%, crome metal 3%, ferromanganese 45%, molybdenum-iron 3%, nickel powder 1%, atomization ferrosilicon powder 2%, iron powder 11%.Taken raw material is fully mixed Close uniformly, then added raw materials into by powder feeder in U-lag, filling rate 51%, U-lag is healed up, and raw material is included it In, then a diameter of 2.8 mm is pulled to through drawing machine.
Overlay cladding is formed after welding wire welding, the overlay cladding includes following element:Count by weight percentage, C is 0.11%, Cr 12%, Si 0.6%, Mn 18%, Mo 1.0%, Ni 1.8%, surplus Fe.
Embodiment 4
In the embodiment of the present invention, selection width is 12mm, the mild steel crust that thickness is 0.3mm, first by the mild steel crust U-lag is rolled into, then medicine core is added into U-lag, the medicine core is made of following raw material:Count by weight percentage, low-carbon Ferrochrome 40%, ferromanganese 43.5%, molybdenum-iron 1.5%, nickel powder 2%, atomization ferrosilicon powder 5%, iron powder 8%.Taken raw material is sufficiently mixed uniformly, Then added raw materials into by powder feeder in U-lag, filling rate 50%, U-lag is healed up, and raw material is included wherein, then A diameter of 2.4mm is pulled to through drawing machine.
Overlay cladding is formed after welding wire welding, the overlay cladding includes following element:Count by weight percentage, C is 0.05%, Cr 9%, Si 0.5%, Mn 10%, Mo 0.5%, Ni 1%, surplus Fe.
Embodiment 5
In the embodiment of the present invention, selection width is 16mm, the mild steel crust that thickness is 0.5mm, first by the mild steel crust U-lag is rolled into, then medicine core is added into U-lag, the medicine core is made of following raw material:Count by weight percentage, low-carbon Ferrochrome 40%, silicomangan 43.5%, molybdenum-iron 1.5%, nickel powder 2%, atomization ferrosilicon powder 5%, iron powder 8%.Taken raw material is sufficiently mixed Uniformly, then being added raw materials into by powder feeder in U-lag, filling rate 50%, U-lag is healed up, and raw material is included wherein, Then a diameter of 2.6mm is pulled to through drawing machine.
Overlay cladding is formed after welding wire welding, the overlay cladding includes following element:Count by weight percentage, C is 0.2%, Cr 17%, Si 1.5%, Mn 20%, Mo 1.0%, Ni 2%, surplus Fe.
The welding wire of 1~embodiment of Example 5, using Q235 steel plates as mother metal, carries out soldering test.Using DC reverse connection Method, carries out tablet open arc built-up welding under full-automatic welding machine, the V of welding current 380A~480 A, weldingvoltage 29V~32, welding Speed 4.5m/min, 30 mm of stem elongation.It need not be preheated before weldering, postwelding need not be heat-treated, and observe welding process.As a result table It is bright:Appearance of weld is good, surface flawless, there is slag covering welding bead surface, and welding process is stablized, and splashes few.
There is the welding wire of the present invention overlay cladding formed after welding to be well combined with carbon steel and rich chromium cast iron overlay cladding, machinery The features such as excellent performance, superior impact abrasion performance.
The overlay cladding that is formed has certain toughness and different connects metal compared with prior art after the welding wire welding of the present invention Ability and have the reason for more high-wearing feature be in medicine core add 10%~20%(Count by weight percentage)Ferromanganese, make Contain tiny CrMnNiFe crystalline solid in the surfacing layer formed after welding wire welding, this crystalline solid has simple six side Structure, with the weight of rich chromium cast iron it is molten in, there is good binding ability.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It is appreciated that other embodiment.

Claims (10)

1. a kind of welding wire, including mild steel crust and medicine core, form overlay cladding, it is characterised in that described after the welding wire welding Overlay cladding is made of following element:Count by weight percentage, C be 0.05%~0.2%, Cr be 9%~17%, Si be 0.5%~ 1.5%, Mn are that 10%~20%, Mo is 0.5%~1%, Ni 1%-2%, surplus Fe.
2. welding wire according to claim 1, it is characterised in that the medicine core weight for the welding wire weight 35%~ 65%.
3. welding wire according to claim 1, it is characterised in that the medicine core is made of following raw material:Low-carbon ferrochromium and gold One or both mixing, ferromanganese in category chromium or one kind in silicomangan, molybdenum-iron, nickel powder, atomization ferrosilicon powder, iron powder.
4. welding wire according to claim 3, it is characterised in that the granularity of above-mentioned raw materials is the mesh of 65 mesh~80.
5. welding wire according to claim 1, it is characterised in that the medicine core is made of following raw material:By weight percentage Calculate, low-carbon ferrochromium 40%, ferromanganese 43.5% or one kind in silicomangan 43.5%, molybdenum-iron 1.5%, nickel powder 2%, atomization ferrosilicon powder 5%th, iron powder 8%.
6. welding wire according to claim 1, it is characterised in that the medicine core is made of following raw material:By weight percentage Calculate, low-carbon ferrochromium 38%, silicomangan 45%, molybdenum-iron 1%, nickel powder 1%, atomization ferrosilicon powder 5%, iron powder 10%.
7. welding wire according to claim 1, it is characterised in that the medicine core is made of following raw material:By weight percentage Calculate, low-carbon ferrochromium 35%, crome metal 3%, ferromanganese 45%, molybdenum-iron 3%, nickel powder 1%, atomization ferrosilicon powder 2%, iron powder 11%.
8. a kind of manufacture method of welding wire as claimed in claim 1, it is characterised in that selection width is 12mm~16mm, thickness The mild steel crust for 0.3mm~0.5mm is spent, the mild steel crust is first rolled into U-lag, then medicine is added into U-lag Core, then heals up U-lag, makes medicine core parcel wherein, the welding wire of a diameter of 2.4mm~2.8mm is then pulled to through drawing machine.
9. the manufacture method of welding wire according to claim 8, it is characterised in that the medicine core weight is the welding wire weight 35%~65%.
10. the manufacture method of welding wire according to claim 8, it is characterised in that the medicine core is made of following raw material:It is low One or both mixing, ferromanganese or one kind in silicomangan, molybdenum-iron, nickel powder, atomization ferrosilicon powder in carbon ferrochrome and crome metal, Iron powder.
CN201610909862.5A 2016-10-19 2016-10-19 A kind of welding wire and its manufacture method Pending CN107962314A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110026706A (en) * 2019-03-20 2019-07-19 江苏孚尔姆焊业股份有限公司 Oil drill rocker head wear-resisting welding wire with flux core and its manufacturing method
CN110653518A (en) * 2019-10-29 2020-01-07 洛阳双瑞特种合金材料有限公司 Seamless flux-cored wire for high-manganese low-temperature steel of LNG storage tank and preparation method

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CN1125652A (en) * 1994-12-29 1996-07-03 鞍山钢铁公司 Special welding electrode for manganese steel build-up welding
CN1603055A (en) * 2004-11-15 2005-04-06 攀钢集团攀枝花钢铁研究院 Flux-cored wire for supporting roller built-up welding
CN1762644A (en) * 2004-10-18 2006-04-26 林肯环球公司 Self-shielded flux cored electrode
CN1923435A (en) * 2006-09-08 2007-03-07 攀钢集团攀枝花钢铁研究院 Pile-up welding flux-cored wire for restoring cold rolling intermediate roller operational layer and method for manufacturing same
CN101077554A (en) * 2006-05-24 2007-11-28 首钢总公司 Half steel roller submerged arc building-up flux-cored wire
CN102139423A (en) * 2010-02-02 2011-08-03 北京赛亿科技股份有限公司 Cover surface layer self-protecting metal core surfacing welding wire for repairing cold-rolled backup 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
CN103223559A (en) * 2013-05-21 2013-07-31 苏州威奥得焊材科技有限公司 High-manganese high-chromium self-shielded welding wire and production technique thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1125652A (en) * 1994-12-29 1996-07-03 鞍山钢铁公司 Special welding electrode for manganese steel build-up welding
CN1762644A (en) * 2004-10-18 2006-04-26 林肯环球公司 Self-shielded flux cored electrode
CN1603055A (en) * 2004-11-15 2005-04-06 攀钢集团攀枝花钢铁研究院 Flux-cored wire for supporting roller built-up welding
CN101077554A (en) * 2006-05-24 2007-11-28 首钢总公司 Half steel roller submerged arc building-up flux-cored wire
CN1923435A (en) * 2006-09-08 2007-03-07 攀钢集团攀枝花钢铁研究院 Pile-up welding flux-cored wire for restoring cold rolling intermediate roller operational layer and method for manufacturing same
CN102139423A (en) * 2010-02-02 2011-08-03 北京赛亿科技股份有限公司 Cover surface layer self-protecting metal core surfacing welding wire for repairing cold-rolled backup 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
CN103223559A (en) * 2013-05-21 2013-07-31 苏州威奥得焊材科技有限公司 High-manganese high-chromium self-shielded welding wire and production technique thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110026706A (en) * 2019-03-20 2019-07-19 江苏孚尔姆焊业股份有限公司 Oil drill rocker head wear-resisting welding wire with flux core and its manufacturing method
CN110653518A (en) * 2019-10-29 2020-01-07 洛阳双瑞特种合金材料有限公司 Seamless flux-cored wire for high-manganese low-temperature steel of LNG storage tank and preparation method

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