CN105033505A - Self-protecting flux-cored welding wire - Google Patents
Self-protecting flux-cored welding wire Download PDFInfo
- Publication number
- CN105033505A CN105033505A CN201510392333.8A CN201510392333A CN105033505A CN 105033505 A CN105033505 A CN 105033505A CN 201510392333 A CN201510392333 A CN 201510392333A CN 105033505 A CN105033505 A CN 105033505A
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- China
- Prior art keywords
- welding
- self
- cored wire
- resin
- flux
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3612—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with organic compounds as principal constituents
- B23K35/3613—Polymers, e.g. resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
- B23K9/232—Arc welding or cutting taking account of the properties of the materials to be welded of different metals
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention belongs to the field of welding and relates to a welding wire, in particular to a self-protecting flux-cored welding wire. The self-protecting flux-cored welding wire contains resin and a filling composition, wherein the filling composition is adhered through the resin and then is extruded through an extrusion molding machine to form the welding wire. The filling composition contains a welding arc stabilizer, a metal alloy, a welding slag composition and a gas forming agent. The welding wire is formed by adopting the filling composition adhered with the resin and then performing extrusion molding, and the compositions of the welding wire are even compared with an external metal shell of a flux-cored welding wire product in the prior art. When the self-protecting flux-cored welding wire is applied to welding, a resin base is combusted and decomposed, the composition at the center of the welding wire is connected with two welding parts in a uniform transition mode, so that uniform transition is produced between the two welding parts with the influence of high welding temperature, and breakage does not occur due to different thermal expansion coefficients.
Description
Technical field
The invention belongs to welding field, relate to welding welding wire, be specially a kind of self-protection flux-cored wire.
Background technology
In arc welding field, electric arc is welded with three main Types: submerged-arc welding (SAW), SMAW (SMAW) and flux cored wire arc welding (FCAW).In submerged-arc welding, make to produce between naked metal welding wire and processing metal coalescent by electric arc heated.This welding position is covered with granular or fusible material or solder flux.Welding operation starts like this: make the Arc below solder flux, produces heat in order to melt solder flux around, thus forms conductivity cell that is subsurface, that be liquid by continuous current control.Wire tip and the work piece under being located immediately at it become molten condition, and melting filling metal is deposited on workpiece by welding wire.Melting is filled metal and is replaced solder flux pond and form pad.In SMAW, welding flux layer replaces loose granular flux cover layer and forms isolation.Flux cored wire arc welding is that solder flux is loaded in metal-back, can add other compositions and then improve the quality of welding point in welding process.
Now, flux-cored wire is used to replace solid wire more and more, in order to improve the production capacity in structure processing.Flux-cored wire contains metal-back and core wire, and core wire is made up of various material.Flux-cored wire provides the welding deposition speed of increase usually, and forms the penetration section wider and firmer than many metal solid welding wires.Compared with many solid wire, flux-cored wire also produces less smog and splashing usually, and welding arc stability improves, and can carry out the built-up welding containing the wetting characteristics be improved.As Chinese patent CN200510090358A " self-protection flux-cored wire ", and the Chinese patent CN102655978A coat core-wire for gas-protection arc welding of all-position welding " can ".
But carrying out welding to different metal is at present still a kind of containing challenging welding operation.Because metal ingredient is different, the pad formed between two kinds of metals can face very large stress, usually causes forming crack.These stress parts are caused by the different physical properties (e.g., thermal coefficient of expansion, thermal conductivity, hardenability, yield strength, percentage elongation etc.) due to metal.And existing welding means and flux-cored wire can not well solve the problems of the technologies described above.
Summary of the invention
The present invention carries out Welding Problems for solving different metal, and the invention provides a kind of self-protection flux-cored wire, it achieves the smooth transition of the comprehensive mechanical property of the welding point of different metal.
A kind of self-protection flux-cored wire, containing resin and filling components, filling components is welding wire by extruding machine extrusion molding after resin gluing; Described filling components comprises welding arc stabilizing agent, metal alloy, welding slag component and gas forming agent.
Wherein, the mass percent of described resin, welding arc stabilizing agent, metal alloy, welding slag component and gas forming agent is:
Resin 30-45%
Welding arc stabilizing agent 1-10%
Metal alloy 20-30%
Welding slag component 13-34%
Gas forming agent 8-23%
Wherein, described resin is preferably the resin containing phenyl ring.
Wherein, described welding slag component is the mixture of matrix component and slag formation agent.
Wherein, the mass percent of described matrix component and slag formation agent is (1:3) ~ (5:2).
Wherein, described matrix component is the mixture of titanium dioxide and mother metal, and the mass ratio of titanium dioxide and mother metal is (1:6) ~ (1:1).
Wherein, described slag formation agent is calcium or silicon.
Wherein, described welding arc stabilizing agent is potassium or sodium.
Wherein, described metal alloy is one or more of wherein any mass ratio of aluminium, molybdenum, manganese, vanadium, zinc.
Wherein, gas forming agent is fluorite or lime stone.
Beneficial effect of the present invention is:
1, welding wire is obtained by extrusion moulding after employing resin gluing filling components, relative to the flux-cored wire beyond the region of objective existence metal-back of prior art, the composition of welding wire is uniform, be applied in welding process, resin-based knows from experience burned decomposition, connection two weldments that welding wire center compositions then can be evenly excessive, and along with the temperatures involved of welding, make to have between two weldments evenly excessively, can not rupture because thermal coefficient of expansion is different.
2, in component of weld wire, add welding arc stabilizing agent, welding slag component and gas forming agent welding can be made to cross carry out in stable.
3, in component of weld wire, add the comprehensive mechanical property that metal alloy can improve welding point, add metal alloy composition difference, the mechanical property that welding point possesses is also different.
Detailed description of the invention
Be below specific embodiments of the invention, technical scheme of the present invention is described further, but protection scope of the present invention is not limited to these embodiments.Every do not deviate from the present invention's design change or equivalent substituting include within protection scope of the present invention.
A kind of self-protection flux-cored wire, containing resin and filling components, filling components is welding wire by extruding machine extrusion molding after resin gluing; Described filling components comprises welding arc stabilizing agent, metal alloy, welding slag component and gas forming agent.
Wherein, the mass percent of described resin, welding arc stabilizing agent, metal alloy, welding slag component and gas forming agent is as shown in embodiment below.
Embodiment 1
A kind of self-protection flux-cored wire, composition comprises:
Phenolic resins 30%
Potassium 10%
Aluminium 30%
Matrix component 4%
Calcium 16%
Fluorite 10%
Wherein, matrix component is: mass ratio is titanium dioxide and the mother metal of 1:1.
Embodiment 2
A kind of self-protection flux-cored wire, composition comprises:
ABS resin 45%
Sodium 1%
Aluminium 2%
Molybdenum 18%
Matrix component 3%
Silicon 10%
Lime stone 21%
Wherein, matrix component is: mass ratio is titanium dioxide and the mother metal of 1:6.
Embodiment 3
A kind of self-protection flux-cored wire, composition comprises:
Polystyrene resin 33%
Potassium 4%
Aluminium 5%
Molybdenum 5%
Manganese 5%
Vanadium 5%
Zinc 5%
Matrix component 18%
Silicon 12%
Fluorite 8%
Wherein, matrix component is: mass ratio is titanium dioxide and the mother metal of 1:5.
Embodiment 4
A kind of self-protection flux-cored wire, composition comprises:
Phenolic resins 31%
Sodium 2%
Manganese 4%
Vanadium 9%
Zinc 7%
Matrix component 4%
Calcium 20%
Lime stone 23%
Wherein, matrix component is: mass ratio is titanium dioxide and the mother metal of 1:2.
Embodiment 5
A kind of self-protection flux-cored wire, composition comprises:
Phenolic resins 34%
Sodium 2%
Zinc 20%
Matrix component 17%
Silicon 17%
Lime stone 10%
Wherein, matrix component is: mass ratio is titanium dioxide and the mother metal of 1:3.
Embodiment 6
A kind of self-protection flux-cored wire, composition comprises:
Bisphenol-A epoxy vinyl esters 30%
Sodium 10%
Molybdenum 15%
Manganese 5%
Vanadium 5%
Matrix component 5%
Calcium 20%
Lime stone 10%
Wherein, matrix component is: mass ratio is titanium dioxide and the mother metal of 1:3.
The flux-cored wire prepared in embodiment 1-6 is carried out built-up welding, arc stability in welding process, splash few, appearance of weld, de-slag are excellent; The mechanical performance index adopting GB/229-2007 and GB228-2002 standard to record its deposited metal is: tensile strength sigma
b: 1000-1500MPa, yield strength σ
0.2: 600-700MPa, percentage elongation δ
5: 35-40%, impact absorbing energy Akv (0 DEG C): 80-100J.
Hardness test adopts HR-580 portable hardometer, and get at 5 to each overlay cladding and beat hardness, the average hardness (HRC) obtaining this welding wire built-up welding layer is 56-67.
Wear test adopts SGS-245 wear tester to test, and in overlay cladding, get 5 55*25*5mm samples, experiment parameter is: rubber wheel rotating speed 240 revs/min, and revolution is 1000 turns, and abrasive material is 40-70 order quartz sand.The weight loss of material wear ability wearing and tearing is weighed, and experiment uses Q235 steel as a comparison, and contrast piece weight loss is the relative wear resistance of this test specimen with the ratio of test block weight loss, and the average wearability that experiment obtains this welding wire built-up welding layer is 13.5-16.5.
Embodiment 7
A kind of self-protection flux-cored wire, composition comprises:
Epoxy acrylic resin 30%
Sodium 2%
Molybdenum 9%
Manganese 1%
Vanadium 10%
Zinc 9%
Matrix component 9%
Silicon 10%
Lime stone 20%
Wherein, matrix component is: mass ratio is titanium dioxide and the mother metal of 1:4.
Embodiment 8
A kind of self-protection flux-cored wire, composition comprises:
Acrylic resin 40%
Potassium 9%
Aluminium 4%
Molybdenum 3%
Manganese 4%
Vanadium 7%
Zinc 3%
Matrix component 5%
Silicon 10%
Fluorite 15%
Wherein, matrix component is: mass ratio is titanium dioxide and the mother metal of 1:1.
Embodiment 9
A kind of self-protection flux-cored wire, composition comprises:
Vinyl ester resin 36%
Sodium 5%
Aluminium 4%
Molybdenum 6%
Manganese 3%
Vanadium 7%
Zinc 1%
Matrix component 5%
Calcium 19%
Fluorite 14%
Wherein, matrix component is: mass ratio is titanium dioxide and the mother metal of 1:5.
Embodiment 10
A kind of self-protection flux-cored wire, composition comprises:
Bimaleimide resin 35%
Sodium 7%
Vanadium 11%
Zinc 12%
Matrix component 7%
Silicon 9%
Lime stone 19%
Wherein, matrix component is: mass ratio is titanium dioxide and the mother metal of 1:6.
Embodiment 11
A kind of self-protection flux-cored wire, composition comprises:
Polyvinyl resin 36%
Sodium 5%
Aluminium 12%
Zinc 13%
Matrix component 12%
Calcium 8%
Lime stone 14%
Wherein, matrix component is: mass ratio is titanium dioxide and the mother metal of 1:1.
Embodiment 12
A kind of self-protection flux-cored wire, composition comprises:
Acrylic resin 32%
Potassium 3%
Aluminium 2%
Manganese 1%
Vanadium 20%
Matrix component 7%
Calcium 12%
Lime stone 23%
Wherein, matrix component is: mass ratio is titanium dioxide and the mother metal of 1:1.
The flux-cored wire prepared in embodiment 7-12 is carried out the built-up welding of Continuous Casting Rolls, arc stability in welding process, splash few, appearance of weld, de-slag are excellent; The mechanical performance index adopting GB/229-2007 and GB228-2002 standard to record its deposited metal is: tensile strength sigma
b: 800-1000MPa, yield strength σ
0.2: 400-500MPa, percentage elongation δ
5: 25-35%, impact absorbing energy Akv (0 DEG C): 80-100J.
Hardness test adopts HR-580 portable hardometer, and get at 5 to each overlay cladding and beat hardness, the average hardness (HRC) obtaining this welding wire built-up welding layer is 54-58.
Wear test adopts SGS-245 wear tester to test, and in overlay cladding, get 5 55*25*5mm samples, experiment parameter is: rubber wheel rotating speed 240 revs/min, and revolution is 1000 turns, and abrasive material is 40-70 order quartz sand.The weight loss of material wear ability wearing and tearing is weighed, and experiment uses Q235 steel as a comparison, and contrast piece weight loss is the relative wear resistance of this test specimen with the ratio of test block weight loss, and the average wearability that experiment obtains this welding wire built-up welding layer is 13.5-16.5.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a self-protection flux-cored wire, is characterized in that: containing resin and filling components, and filling components is welding wire by extruding machine extrusion molding after resin gluing; Described filling components comprises welding arc stabilizing agent, metal alloy, welding slag component and gas forming agent.
2. a kind of self-protection flux-cored wire according to claim 1, is characterized in that: the mass percent of described resin, welding arc stabilizing agent, metal alloy, welding slag component and gas forming agent is:
Resin 30-45%
Welding arc stabilizing agent 1-10%
Metal alloy 20-30%
Welding slag component 13-34%
Gas forming agent 8-23%.
3. a kind of self-protection flux-cored wire according to claim 1 and 2, is characterized in that: described resin is preferably the resin containing phenyl ring.
4. a kind of self-protection flux-cored wire according to claim 1 and 2, is characterized in that: described welding slag component is the mixture of matrix component and slag formation agent.
5. a kind of self-protection flux-cored wire according to claim 4, is characterized in that: the mass percent of described matrix component and slag formation agent is (1:3) ~ (5:2).
6. a kind of self-protection flux-cored wire according to claim 5, is characterized in that: described matrix component is the mixture of titanium dioxide and mother metal, and the mass ratio of titanium dioxide and mother metal is (1:6) ~ (1:1).
7. a kind of self-protection flux-cored wire according to claim 5, is characterized in that: described slag formation agent is calcium or silicon.
8. a kind of self-protection flux-cored wire according to claim 1 and 2, is characterized in that: described welding arc stabilizing agent is potassium or sodium.
9. a kind of self-protection flux-cored wire according to claim 1 and 2, is characterized in that: described metal alloy is one or more of wherein any mass ratio of aluminium, molybdenum, manganese, vanadium, zinc.
10. a kind of self-protection flux-cored wire according to claim 1 and 2, is characterized in that: gas forming agent is fluorite or lime stone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510392333.8A CN105033505B (en) | 2015-07-07 | 2015-07-07 | A kind of self-protection flux-cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510392333.8A CN105033505B (en) | 2015-07-07 | 2015-07-07 | A kind of self-protection flux-cored wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105033505A true CN105033505A (en) | 2015-11-11 |
| CN105033505B CN105033505B (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510392333.8A Active CN105033505B (en) | 2015-07-07 | 2015-07-07 | A kind of self-protection flux-cored wire |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63101093A (en) * | 1986-10-17 | 1988-05-06 | Daido Steel Co Ltd | Covered electrode for arc welding |
| EP0897774A1 (en) * | 1997-08-22 | 1999-02-24 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Gas shielded arc welding flux cored wire |
| CN1387975A (en) * | 2001-05-28 | 2003-01-01 | 基斯韦尔株式会社 | Welding wire of filling flux of gas protection electric arc welding using for high-strength steel |
| US20050121110A1 (en) * | 2003-12-04 | 2005-06-09 | Lincoln Global, Inc., A Corporation Of The State Of Delaware | Colloidal silica binder system |
| CN1762644A (en) * | 2004-10-18 | 2006-04-26 | 林肯环球公司 | Self-shielded flux cored electrode |
| KR100738726B1 (en) * | 2005-03-31 | 2007-07-12 | 가부시키가이샤 고베 세이코쇼 | Low alloy steel weld metal and flux cored wire |
| JP2010125509A (en) * | 2008-11-28 | 2010-06-10 | Nippon Steel & Sumikin Welding Co Ltd | Flux-cored wire for submerged arc welding of low-temperature steel, and welding method using the same |
-
2015
- 2015-07-07 CN CN201510392333.8A patent/CN105033505B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63101093A (en) * | 1986-10-17 | 1988-05-06 | Daido Steel Co Ltd | Covered electrode for arc welding |
| EP0897774A1 (en) * | 1997-08-22 | 1999-02-24 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Gas shielded arc welding flux cored wire |
| CN1387975A (en) * | 2001-05-28 | 2003-01-01 | 基斯韦尔株式会社 | Welding wire of filling flux of gas protection electric arc welding using for high-strength steel |
| US20050121110A1 (en) * | 2003-12-04 | 2005-06-09 | Lincoln Global, Inc., A Corporation Of The State Of Delaware | Colloidal silica binder system |
| CN1762644A (en) * | 2004-10-18 | 2006-04-26 | 林肯环球公司 | Self-shielded flux cored electrode |
| KR100738726B1 (en) * | 2005-03-31 | 2007-07-12 | 가부시키가이샤 고베 세이코쇼 | Low alloy steel weld metal and flux cored wire |
| JP2010125509A (en) * | 2008-11-28 | 2010-06-10 | Nippon Steel & Sumikin Welding Co Ltd | Flux-cored wire for submerged arc welding of low-temperature steel, and welding method using the same |
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| Publication number | Publication date |
|---|---|
| CN105033505B (en) | 2017-09-15 |
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Inventor after: Chang Dan Inventor before: Xiang Yanhai |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20170817 Address after: Xingqing District of Yinchuan city the Ningxia Hui Autonomous Region 750000 north and 22 street Auhai Qing Building No. 5 operating room Applicant after: Ningxia Yu Ke industrial product design Co., Ltd. Address before: Hu Xushuguan town high tech Zone of Suzhou City, Jiangsu province 215151 Yang Road, No. 22 (Xuguan Industrial Park) Applicant before: Suzhou Rijin Machinery Equipment Co., Ltd. |
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Effective date of registration: 20180605 Address after: 063000 210 Torch Road, Tangshan high tech Industrial Park, Tangshan City, Hebei Patentee after: Tangshan rich silver metal material Co., Ltd. Address before: 750000 Yinchuan, the Ningxia Hui Autonomous Region Xingqing District Qinghe North Street, 22, building 5, Qinghai square, Australia. Patentee before: Ningxia Yu Ke industrial product design Co., Ltd. |