CN117733408A - Slag former for open arc welding self-protection flux-cored wire - Google Patents
Slag former for open arc welding self-protection flux-cored wire Download PDFInfo
- Publication number
- CN117733408A CN117733408A CN202311593128.9A CN202311593128A CN117733408A CN 117733408 A CN117733408 A CN 117733408A CN 202311593128 A CN202311593128 A CN 202311593128A CN 117733408 A CN117733408 A CN 117733408A
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- CN
- China
- Prior art keywords
- slag former
- slag
- cored wire
- arc welding
- self
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- 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.)
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- 239000002893 slag Substances 0.000 title claims abstract description 58
- 238000003466 welding Methods 0.000 title claims abstract description 52
- 239000000843 powder Substances 0.000 claims abstract description 40
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract description 13
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 10
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 10
- 229910001200 Ferrotitanium Inorganic materials 0.000 claims abstract description 9
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010433 feldspar Substances 0.000 claims abstract description 9
- 239000003381 stabilizer Substances 0.000 claims abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 4
- 239000004111 Potassium silicate Substances 0.000 claims description 3
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 3
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 3
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- XROWMBWRMNHXMF-UHFFFAOYSA-J titanium tetrafluoride Chemical compound [F-].[F-].[F-].[F-].[Ti+4] XROWMBWRMNHXMF-UHFFFAOYSA-J 0.000 claims description 3
- 239000011324 bead Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract description 4
- 239000010931 gold Substances 0.000 abstract description 4
- 229910052737 gold Inorganic materials 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 3
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 239000011572 manganese Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 229910052748 manganese Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000604 Ferrochrome Inorganic materials 0.000 description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- 229910001309 Ferromolybdenum Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a slag former for an open arc welding self-protection flux-cored wire, which comprises a slag former body, wherein the slag former body comprises the following components in percentage by mass: 40-75% of fluoride, 10-30% of metal oxide, 1-10% of feldspar powder, 1-10% of arc stabilizer, 1-10% of metal powder, and 100% of the sum of the mass percentages of the components, wherein the metal oxide adopts titanium dioxide, aluminum oxide or the combination of the two components; the metal powder adopts ferrotitanium, aluminum magnesium or the combination of the ferrotitanium and the aluminum magnesium, the oxide and the fluoride are matched for use, the generated slag shell is ensured to have proper viscosity and fluidity, a weld bead can be completely recovered, the oxide and the metal powder are matched, the gas content in molten gold is reduced, the oxidation degree is reduced, and the generation of air holes is avoided. Through the mode, the self-shielded arc welding flux-cored wire is applied to the self-shielded arc welding flux-cored wire, a protective slag shell can be generated to cover the welding bead in the welding process, and the defects of air hole cracks, slag inclusion and the like in the welding bead after solidification are avoided.
Description
Technical Field
The invention relates to the technical field of welding materials, in particular to a slag former for an open arc welding self-protection flux-cored wire.
Background
In the welding process, since the molten metal in a high temperature state chemically reacts with oxygen and nitrogen in the atmosphere, argon, helium, etc. are required as shielding gases to insulate air for welding in the conventional welding method.
The flux-cored wire is also called a tubular welding wire, and various welding materials with different purposes (wear resistance, high strength, heat resistance, corrosion resistance, low temperature resistance and the like) can be conveniently designed by adjusting the types and the proportions of alloy components of the powder, because the alloy components of the flux-cored wire can be flexibly and conveniently adjusted as required.
The self-protection flux-cored wire is characterized in that substances such as slag formation, gas formation, deoxidization, denitrification and the like are further added into the flux-cored component on the basis of the common flux-cored wire, so that the self-protection flux-cored wire does not need to carry out further gas protection in the welding process besides the advantages of the common flux-cored wire, and is more suitable for welding in bridges, plateaus or other inconvenient transportation or in narrow environments.
The open arc welding wire coating material has limited space, so too much slag former can not be coated, and the slag shell generated by adding the open arc welding wire coating material needs to completely coat the welding bead, so the viscosity and the fluidity of the open arc welding wire coating material need to be high, compared with the submerged arc welding, the open arc welding wire coating material has less protective slag shell, and the open arc welding wire coating material also has special degassing and antioxidation effects because the open arc welding wire is exposed to the air.
Based on the defects and shortcomings, the prior art needs to be improved, and the slag former of the open arc welding self-protection flux-cored wire is designed.
Disclosure of Invention
The invention mainly solves the technical problem of providing the slag former for the self-shielded flux-cored wire for open arc welding, which is applied to the self-shielded flux-cored wire for open arc welding, and can generate a protective slag shell to cover a welding bead in the welding process, thereby avoiding the defects of air hole cracks, slag inclusion and the like in the welding bead after solidification.
In order to solve the technical problems, the invention adopts a technical scheme that: the slag former comprises a slag former body, wherein the slag former body consists of the following components in percentage by mass: 40-75% of fluoride, 10-30% of metal oxide, 1-10% of feldspar powder, 1-10% of arc stabilizer, 1-10% of metal powder, and 100% of the sum of the mass percentages of the components, wherein the metal oxide adopts titanium dioxide, aluminum oxide or the combination of the two components; the metal powder adopts ferrotitanium, aluminum magnesium or the combination of the ferrotitanium and the aluminum magnesium, the oxide and the fluoride are matched for use, the generated slag shell is ensured to have proper viscosity and fluidity, a weld bead can be completely recovered, the oxide and the metal powder are matched, the oxidation-reduction reaction in an electric arc and the weld bead can be stabilized, the gas content in molten gold is reduced, the oxidation degree is reduced, and the generation of air holes is avoided.
Preferably, the fluoride is calcium fluoride, titanium fluoride or a combination of the two.
Preferably, the feldspar powder is potassium feldspar.
Preferably, the arc stabilizer is potassium titanate, potassium silicate or a combination of the two.
Compared with the prior art, the invention has the beneficial effects that:
the slag former formula is particularly suitable for flux-cored wires with various stainless steel components, and the slag former is needed to protect the welding bead in the welding process, reduce alloy burning loss and avoid defects due to high alloy quantity.
Detailed Description
The following detailed description of the preferred embodiments of the invention is provided to enable those skilled in the art to more readily understand the advantages and features of the invention and to make a clear and concise definition of the scope of the invention.
The embodiment of the invention comprises the following steps:
the open arc welding self-protection flux-cored wire comprises a steel belt, metal powder which is wrapped in the steel belt and is used for improving weld bead alloy, and a slag former which is used for producing a protection slag shell, wherein the total content of the slag former accounts for 5-15% of the weight of the whole flux-cored wire, when the content is too low, the slag shell can not completely protect a molten pool and the surface of the weld bead, and the slag shell is easy to produce and has poor slag detachability; when the content is too high, the slag shell is too thick, so that gas in the molten pool cannot overflow in the cooling process, and internal air hole defects are easy to generate.
The slag former for the open arc welding self-protection flux-cored wire comprises a slag former body, wherein the slag former body comprises the following components in percentage by mass: 40-75% of fluoride, 10-30% of metal oxide, 1-10% of feldspar powder, 1-10% of arc stabilizer, 1-10% of metal powder, and 100% of the sum of the mass percentages of the components, wherein the metal oxide adopts titanium dioxide, aluminum oxide or the combination of the two components; the metal powder adopts ferrotitanium, aluminum magnesium or the combination of the ferrotitanium and the aluminum magnesium, fluoride can reduce slag viscosity and oxide can improve viscosity under a high-temperature melting state, so that the proportion of the ferrotitanium and the aluminum magnesium can be used for adjusting slag viscosity/fluidity, the oxide and the fluoride are matched for use, the generated slag shell can be ensured to have proper viscosity and fluidity, a weld bead can be completely recovered, the oxide and the metal powder are matched, the oxidation-reduction reaction in an electric arc and the weld bead can be stabilized, the gas content in molten gold is reduced, the oxidation degree is reduced, the generation of air holes is avoided, and the reduction of the oxidation degree of the surface of the molten gold is also beneficial to improving the deslagging capacity.
The fluoride adopts calcium fluoride, titanium fluoride or a combination of the two.
The feldspar powder adopts potassium feldspar.
The arc stabilizer adopts potassium titanate, potassium silicate or the combination of the two.
Embodiment one:
the martensitic stainless steel welding wire comprises a steel belt and welding powder wrapped in the steel belt, wherein the filling ratio of the welding powder is 35%, namely the total powder amount, and the welding powder comprises the following components in percentage by mass: 45% of low-carbon ferrochrome powder, 10% of nickel powder, 1.5% of ferrosilicon powder, 3.5% of manganese powder, 2% of ferromolybdenum powder, 21% of iron powder and 17% of slag forming agent, wherein the slag forming agent comprises the following components in percentage by mass: 60% of fluoride, 15% of metal oxide, 8% of feldspar powder, 10% of arc stabilizer and 7% of metal powder.
The composition of the obtained martensitic stainless steel flux-cored wire after surfacing is shown in the following table one:
surface-martensitic stainless steel flux-cored wire surfacing available composition table
| Composition of the components | C | Si | Mn | Cr | Mo | Ni | Fe |
| Percent% | 0.05 | 0.6 | 1.2 | 14 | 0.6 | 4.2 | Bal. |
Embodiment two:
the high-manganese stainless steel welding wire comprises a steel belt and welding powder wrapped in the steel belt, wherein the filling ratio of the welding powder is 48%, namely the total powder amount, and the welding powder comprises the following components in percentage by mass: 35% of low-carbon ferrochrome powder, 1.5% of ferrosilicon powder, 45% of manganese powder and 18.5% of slag former, wherein the slag former comprises the following components in percentage by mass: 65% of fluoride, 10% of metal oxide, 12% of feldspar powder, 8% of arc stabilizer and 5% of metal powder.
The components obtained after overlaying the flux-cored wire of the high-manganese stainless steel are shown in the following table II:
surface available component table after surfacing of surface two high manganese stainless steel flux-cored wire
| Composition of the components | C | Si | Mn | Cr | Fe |
| Percent% | 0.05 | 0.5 | 17.5 | 13.8 | Bal. |
Because the high-manganese stainless steel welding wire has high manganese content and the manganese has deoxidizing effect in welding, the metal powder and the oxide powder in the slag former can be reduced in proper amount.
The slag former for the open arc welding self-protection flux-cored wire is prepared by using the slag formula and metal powder raw materials, the surfacing welding layer has no defects of crack, air hole slag inclusion and the like, the slag shell slag removal performance is good, the slag can be continuously removed even if the welding bead temperature reaches above 300 ℃, and the surface slag removal time after surfacing is effectively saved. .
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (4)
1. A slag former for a self-protection flux-cored wire for open arc welding is characterized in that: the slag former comprises a slag former body, wherein the slag former body comprises the following components in percentage by mass: 40-75% of fluoride, 10-30% of metal oxide, 1-10% of feldspar powder, 1-10% of arc stabilizer, 1-10% of metal powder, and 100% of the sum of the mass percentages of the components, wherein the metal oxide adopts titanium dioxide, aluminum oxide or the combination of the two components; the metal powder adopts ferrotitanium, aluminum magnesium or the combination of the ferrotitanium and the aluminum magnesium.
2. The open arc welding self-protection flux-cored wire slag former disclosed in claim 1, wherein the slag former is characterized in that: the fluoride adopts calcium fluoride, titanium fluoride or a combination of the two.
3. The open arc welding self-protection flux-cored wire slag former disclosed in claim 1, wherein the slag former is characterized in that: the feldspar powder adopts potassium feldspar.
4. The open arc welding self-protection flux-cored wire slag former disclosed in claim 1, wherein the slag former is characterized in that: the arc stabilizer adopts potassium titanate, potassium silicate or the combination of the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311593128.9A CN117733408A (en) | 2023-11-27 | 2023-11-27 | Slag former for open arc welding self-protection flux-cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311593128.9A CN117733408A (en) | 2023-11-27 | 2023-11-27 | Slag former for open arc welding self-protection flux-cored wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117733408A true CN117733408A (en) | 2024-03-22 |
Family
ID=90259964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311593128.9A Pending CN117733408A (en) | 2023-11-27 | 2023-11-27 | Slag former for open arc welding self-protection flux-cored wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117733408A (en) |
-
2023
- 2023-11-27 CN CN202311593128.9A patent/CN117733408A/en active Pending
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