CN115008064B - Welding wire, preparation method, application and welding method thereof - Google Patents
Welding wire, preparation method, application and welding method thereof Download PDFInfo
- Publication number
- CN115008064B CN115008064B CN202210713812.5A CN202210713812A CN115008064B CN 115008064 B CN115008064 B CN 115008064B CN 202210713812 A CN202210713812 A CN 202210713812A CN 115008064 B CN115008064 B CN 115008064B
- Authority
- CN
- China
- Prior art keywords
- welding
- welding wire
- powder
- aluminum
- flux
- 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.)
- Active
Links
- 238000003466 welding Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 46
- 230000004907 flux Effects 0.000 claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 25
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 18
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 16
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007769 metal material Substances 0.000 claims abstract description 15
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 15
- 239000011701 zinc Substances 0.000 claims abstract description 15
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract description 13
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 10
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 9
- 229910052718 tin Inorganic materials 0.000 claims abstract description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 238000005476 soldering Methods 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 239000003814 drug Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000005282 brightening Methods 0.000 claims description 3
- 238000005491 wire drawing Methods 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims description 2
- 229910000420 cerium oxide Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims 1
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium oxide Chemical compound O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 claims 1
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 16
- 230000000052 comparative effect Effects 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 150000002736 metal compounds Chemical class 0.000 description 7
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 6
- 238000005219 brazing Methods 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 229910052684 Cerium Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052746 lanthanum Inorganic materials 0.000 description 4
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 229910052706 scandium Inorganic materials 0.000 description 3
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 3
- 229910020239 KAlF4 Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
Classifications
-
- 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
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
- B23K35/286—Al as the principal constituent
-
- 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
- B23K35/3601—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 inorganic compounds as principal constituents
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
-
- 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
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
-
- 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
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
- B23K2103/20—Ferrous alloys and aluminium or alloys thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Arc Welding In General (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses a welding wire, a preparation method, application and a welding method thereof. The welding wire comprises a sheath and a flux core; the total mass of the crust is taken as a reference, and the crust contains more than 80 weight percent of aluminum element and 2-20 weight percent of silicon element; based on the total mass of the flux core, the flux core contains 30-60 wt% of fluoride soldering flux, 15-40 wt% of zinc element, 15-35 wt% of tin element, 5-20 wt% of nickel element, 0.5-5 wt% of zirconium element and 0.5-3 wt% of rare earth element; wherein the rare earth element is calculated by mass of the corresponding rare earth oxide. The welding wire can improve the strength of the welding joint of the aluminum-containing metal/steel dissimilar metal material.
Description
Technical Field
The invention relates to a welding wire, a preparation method, application and a welding method thereof.
Background
Aluminum and aluminum alloy have the advantages of high specific strength and low density, and the weight of the structural member can be reduced. The steel alloy has the advantages of high strength, good plastic toughness, good workability, low price and the like. The connecting member made of the aluminum-containing metal/steel dissimilar metal material is widely applied to the industries of automobile industry, metallurgy, engineering equipment and the like. However, because the melting point, the heat conductivity, the expansion coefficient and the density of aluminum-containing metal and steel are greatly different, the phenomena of uneven temperature and inconsistent expansion are extremely easy to occur in the welding process, so that the defects of large residual stress, welding cracks and the like of the welded joint are caused, hard and brittle metal compounds are generated in the welding process, the mechanical properties of the welded joint are seriously influenced, and particularly, the formation of a hard and brittle metal compound layer is more difficult to control in the melting-brazing process. Accordingly, it is highly desirable to provide a welding wire capable of improving the strength of a welded joint of aluminum-containing metal/steel dissimilar metal materials.
Disclosure of Invention
An object of the present invention is to provide a welding wire capable of improving the strength of a welded joint of an aluminum-containing metal/steel dissimilar metal material. Another object of the present invention is to provide a method for preparing the above welding wire. It is yet another object of the present invention to provide a use of a welding wire. It is a further object of the present invention to provide a welding method.
In one aspect, the present invention provides a welding wire comprising a sheath and a flux core;
The total mass of the crust is taken as a reference, and the crust contains more than 80 weight percent of aluminum element and 2-20 weight percent of silicon element;
Based on the total mass of the flux core, the flux core contains 30-60 wt% of fluoride soldering flux, 15-40 wt% of zinc element, 15-35 wt% of tin element, 5-20 wt% of nickel element, 0.5-5 wt% of zirconium element and 0.5-3 wt% of rare earth element; wherein the rare earth element is calculated by mass of the corresponding oxide.
The welding wire of the present invention includes a sheath and a flux core. In certain embodiments, the welding wire is comprised of a sheath and a flux core. The core is filled in the cavity formed by the sheath. The mass of the flux core is 15-40 wt% of the mass of the welding wire; preferably 27 to 35wt%.
According to the welding wire of the present invention, preferably, the mass of the flux core is 15 to 40wt% of the mass of the welding wire.
The outer skin of the present invention contains aluminum element and silicon element. The content of aluminum element is more than 80wt% based on the total mass of the crust; preferably 85 to 95wt%. The content of the silicon element is 2-20wt%; preferably 4 to 15wt%. This reduces the thickness of the hard and brittle metal compound layer and improves the melt pool fluidity.
The outer skin may also contain one or more of iron element, copper element, manganese element, magnesium element, zinc element, and titanium element. In certain embodiments, the sheath is composed of elemental aluminum, elemental silicon, elemental iron, elemental copper, elemental manganese, elemental magnesium, elemental zinc, and elemental titanium. In other embodiments, the sheath is composed of elemental aluminum, elemental silicon, elemental iron, elemental copper, elemental manganese, elemental magnesium, and elemental zinc. The content of iron element can be 0.1-1 wt% based on the total mass of the crust; preferably 0.25 to 0.8wt%. The content of copper element can be 0.05 to 0.7 weight percent; preferably 0.1 to 0.5wt%. The content of manganese element can be 0.01-0.3 wt%; preferably 0.03 to 0.2wt%. The content of the magnesium element can be 0.01 to 0.3 weight percent; preferably 0.03 to 0.15wt%. The content of zinc element can be 0.05-0.5 wt%; preferably 0.08 to 0.35wt%. The content of titanium element can be 0.05 to 0.5 weight percent; preferably 0.1 to 0.3wt%.
According to one embodiment of the invention, the skin is formed from 4043 aluminum tape or 4047 aluminum tape.
The flux core contains fluoride soldering flux, zinc element, tin element, nickel element, zirconium element and rare earth element. In certain embodiments, the flux core is composed of a fluoride flux, elemental zinc, elemental tin, elemental nickel, elemental zirconium, and rare earth elements.
According to the welding wire of the present invention, preferably, the fluoride flux contains KAlF 4 and K 3AlF6.
The mixture ratio of KAlF 4, K 3AlF6.KAlF4 and K 3AlF6 in the fluoride brazing flux is the mixture ratio of KAlF 4 and K 3AlF6 at the eutectic point. According to one embodiment of the invention, the fluoride flux is a Noclock flux. The content of the fluoride brazing flux is 30-60 wt% based on the total mass of the flux core; preferably 50 to 55wt%. This can improve the tensile strength of the welded joint of the aluminum-containing metal/steel dissimilar metal material.
Based on the total mass of the medicine core, the content of zinc element is 15-30wt%; preferably 18 to 20wt%. The zinc element may be provided by zinc powder. The particle size of the zinc powder may be 0.05 to 30. Mu.m. Thus, the toughness of the hard and brittle metal compound layer can be increased, and the tensile strength of the aluminum-containing metal/steel dissimilar metal material welded joint can be improved.
Based on the total mass of the medicine core, the content of tin element is 15-35 wt%; preferably 18 to 25wt%. The tin element may be provided by tin powder. The particle size of the tin powder may be 0.05 to 30 μm. Thus, the thickness of the hard and brittle metal compound layer can be reduced, and the tensile strength of the aluminum-containing metal/steel dissimilar metal material welded joint can be improved.
Based on the total mass of the medicine core, the content of nickel element is 5-10wt%; preferably 5.5 to 7wt%. The nickel element may be provided by nickel powder. The particle size of the nickel powder may be 0.05 to 30 μm. Therefore, the diffusion of iron element can be reduced, and the tensile strength of the aluminum-containing metal/steel dissimilar metal material welded joint can be improved.
Based on the total mass of the medicine core, the content of zirconium element is 0.5-5 wt%; preferably 1.5 to 3wt%. The zirconium element may be provided by zirconium powder. The grain size of the zirconium powder may be 0.05-30 μm. Therefore, the thickness of the hard and brittle metal compound layer can be reduced, grains at the welding seam are thinned, and the tensile strength of the aluminum-containing metal/steel dissimilar metal material welding joint is improved.
Based on the total mass of the medicine core, the content of rare earth elements is 0.5-3wt%; preferably 1 to 2wt%. The content of rare earth elements is calculated by the corresponding rare earth oxide. The rare earth element may be selected from one or more of cerium element, lanthanum element, and scandium element. In certain embodiments, the rare earth elements are cerium and lanthanum. The mass ratio of cerium element to lanthanum element may be 1: (0.5-2); preferably 1: (0.8-1.2). Preferably, the rare earth element is scandium. The rare earth element can effectively refine the size of crystal grains at the welding seam, reduce the thickness of the hard and brittle metal compound layer and improve the tensile strength of the aluminum-containing metal/steel dissimilar metal material welding joint.
The rare earth element may be provided by its corresponding rare earth oxide powder. The particle size of the rare earth oxide powder may be 0.05 to 30 μm.
According to the welding wire of the present invention, preferably, the rare earth element is selected from one or more of cerium element, lanthanum element and scandium element.
According to the welding wire of the present invention, preferably, the zinc element is provided by zinc powder having a particle diameter of 0.05 to 30 μm; the tin element is provided by tin powder, and the grain diameter of the tin powder is 0.05-30 mu m; the nickel element is provided by nickel powder, and the particle size of the nickel powder is 0.05-30 mu m; the zirconium element is provided by zirconium powder, and the grain size of the zirconium powder is 0.05-30 mu m; the rare earth element is provided by corresponding rare earth oxide powder, and the particle size of the rare earth oxide powder is 0.05-30 mu m.
According to the welding wire of the present invention, preferably, the diameter of the welding wire is 1 to 4mm. In certain embodiments, the wire has a diameter of 1.2 to 2mm.
The flux core of the welding wire contains proper contents of zinc, tin, nickel, zirconium and rare earth elements, and the welding wire can effectively improve the strength of the aluminum-containing metal/steel dissimilar metal material welding joint.
On the other hand, the invention provides a preparation method of the welding wire, which comprises the following steps:
(1) Vacuum preserving the powder formed according to the composition of the drug core at 100-350 ℃ for 1-5 h to obtain the treated powder;
(2) Forming a groove on an aluminum belt which accords with the composition of the outer skin elements, and placing the treated powder in the groove to obtain a welding wire blank;
(3) Drawing the welding wire blank through a wire drawing die, reducing the diameter to obtain a drawn blank; and (5) performing brightening process treatment on the stretched blank body to obtain the welding wire.
The temperature of the vacuum insulation is preferably 150-250 ℃. The time of vacuum heat preservation is preferably 2-3 hours. The groove may be a U-shaped groove.
The width of the aluminum strip may be 8 to 16mm. In certain embodiments, the width of the aluminum strip is 9 to 12mm. The thickness of the aluminum strip may be 0.3 to 1.0mm. In certain embodiments, the thickness of the aluminum strip is preferably 0.4 to 0.7mm.
In yet another aspect, the invention provides the use of the welding wire described above for increasing the tensile strength of a welded joint of aluminum-containing metal/steel dissimilar metal material. The "aluminum-containing metal" as used herein includes aluminum or aluminum alloy. In certain embodiments, the aluminum-containing metal is a 1060-type metal plate or a 6061-type metal plate. The thickness of the aluminum-containing metal plate may be 5 to 15mm. The steel may be a low carbon steel sheet; preferably a Q235 type low carbon steel sheet. The thickness of the low carbon steel sheet may be 5 to 15mm. The weld joint is formed by fusion-brazing.
In yet another aspect, the present invention provides a welding method comprising the steps of:
the aluminum-containing metal and the steel are welded by adopting the welding wire.
In certain embodiments, the aluminum-containing metal is a 1060-type metal plate or a 6061-type metal plate. The thickness of the metal plate may be 5 to 15mm.
The steel may be a low carbon steel sheet; preferably a Q235 type low carbon steel sheet. The thickness of the low carbon steel sheet may be 5 to 15mm.
According to the welding method of the present invention, preferably, the welding shielding gas is an inert gas, the gas flow is 10 to 20L/min, the welding current is 95 to 115A, and the welding speed is 350 to 550mm/min.
The welding method of the present invention is preferably a right-hand welding method.
The welding shielding gas is inert gas. According to one embodiment of the invention, the inert gas is argon. The air flow is 10-20L/min; preferably 13 to 16L/min.
The welding current is 95-115A; preferably 100 to 105A. The welding speed is 350-550 mm/min; preferably 450 to 500mm/min.
The tensile strength of the welded joint formed by the method is more than or equal to 70MPa. In certain embodiments, the welded joint has a tensile strength of 150MPa or greater. In other embodiments, the weld joint has a tensile strength of 180MPa or greater.
Detailed Description
The following raw materials are introduced:
The element composition of the 4043 aluminum strip is as follows: 4.5 to 6.0 weight percent of Si, 0.8 weight percent of Fe, 0.3 weight percent of Cu, 0.05 weight percent of Mn, 0.05 weight percent of Mg, 0.1 weight percent of Zn, 0.2 weight percent of Ti and the balance of Al.
The element composition of the 4047 aluminum strip is as follows: 11 to 13 weight percent of Si, 0.8 weight percent of Fe, 0.3 weight percent of Cu, 0.15 weight percent of Mn, 0.10 weight percent of Mg, 0.2 weight percent of Zn and the balance of Al.
The fluoride flux is Noclock flux. The Noclock brazing flux comprises the components of KAlF 4, K 3AlF6,KAlF4 and K 3AlF6, and the ratio of KAlF 4 to K 3AlF6 at the eutectic point.
Examples 1 to 6
And (3) carrying out vacuum heat preservation on the uniformly mixed powder for 2 hours at 200 ℃ to obtain the treated powder.
Rolling the aluminum strip with the oxide film removed into a U-shaped groove; adding the treated powder into the U-shaped groove, and then closing the U-shaped groove to obtain a welding wire blank; drawing the welding wire blank through a wire drawing die, reducing the diameter to obtain a drawn blank; and (5) performing brightening process treatment on the stretched blank body to obtain the welding wire.
The type and size of the aluminum strip, the composition of the powder, the flux-cored filling rate, and the diameter of the welding wire are shown in table 1.
TABLE 1
Note that: the aluminum tape size is expressed as a×b; wherein A represents the width of the aluminum strip and B represents the thickness of the aluminum strip.
Flux core fill ratio refers to the mass of the flux core (formed from powder) as a percentage of the mass of the wire.
Comparative example 1
Example 2 was repeated except that the powder material consisted of a fluoride flux.
Comparative example 2
Example 5 was repeated except that the powder material consisted of a fluoride flux.
Examples 7 to 12 and comparative examples 3 to 4
The region to be welded of an aluminum-containing metal plate (thickness 10 mm) and a steel plate (thickness 10 mm) was subjected to polishing treatment to remove the oxide layer on the surface.
And welding the aluminum-containing metal plate and the steel plate by adopting a welding wire, and then polishing and removing welding slag on the surface of the welding seam. The welding wire is placed in the gap between the aluminum-containing metal plate and the steel plate during welding. The welding process is a right welding method. The welding shielding gas is argon (purity is more than 99.99%), the air flow is 15L/min, the welding current is 105A, and the welding speed is 450mm/min.
The welding wire, aluminum-containing metal plate and steel plate are specifically shown in table 2.
According to GB/T2651-2008 "method for tensile test of welded Joint" and GB/T228.1-2010 "first part of tensile test of metallic Material: the mechanical properties of the welded joint were measured by the method prescribed in room temperature test method, and the results obtained are shown in Table 2.
TABLE 2
| Sequence number | Welding wire | Aluminum-containing sheet metal model | Steel plate model | Tensile Strength (MPa) of welded Joint |
| Example 7 | Example 1 | 1060 | Q235 | 71.4 |
| Example 8 | Example 2 | 6061 | Q235 | 162 |
| Example 9 | Example 3 | 6061 | Q235 | 173.8 |
| Comparative example 3 | Comparative example 1 | 6061 | Q235 | 99 |
| Example 10 | Example 4 | 1060 | Q235 | 76.3 |
| Example 11 | Example 5 | 6061 | Q235 | 179.3 |
| Example 12 | Example 6 | 6061 | Q235 | 182.1 |
| Comparative example 4 | Comparative example 2 | 6061 | Q235 | 105.6 |
As is evident from the comparison of examples 8 to 9 with comparative example 3 and examples 11 to 12 with comparative example 4, the welding wire of the present invention can certainly improve the tensile strength of the welded joint of the aluminum-containing metal plate and the steel plate. The welding wire disclosed by the invention can be suitable for welding an aluminum plate or an aluminum alloy plate with a steel plate, and is wide in application range.
The present invention is not limited to the above-described embodiments, and any modifications, improvements, substitutions, and the like, which may occur to those skilled in the art, fall within the scope of the present invention without departing from the spirit of the invention.
Claims (8)
1. A welding wire for improving the tensile strength of a welded joint of aluminum-containing metal/steel dissimilar metal materials, said welding wire comprising a sheath and a flux core;
The total mass of the crust is taken as a reference, and the crust contains more than 80 weight percent of aluminum element and 2-20 weight percent of silicon element;
Based on the total mass of the flux core, the flux core consists of 50-55wt% of fluoride soldering flux, 18-20wt% of zinc element, 18-25wt% of tin element, 5.5-7wt% of nickel element, 1.5-3wt% of zirconium element and 1-2wt% of rare earth oxide powder; wherein the rare earth oxide powder is selected from one or more of cerium oxide or scandium oxide;
the mass of the flux core is 27-35 wt% of the mass of the welding wire.
2. The welding wire of claim 1, wherein the fluoride flux comprises KAlF 4 and K 3AlF6.
3. The welding wire of claim 1 wherein said zinc element is provided by zinc powder having a particle size of 0.05 to 30 μm; the tin element is provided by tin powder, and the grain diameter of the tin powder is 0.05-30 mu m; the nickel element is provided by nickel powder, and the particle size of the nickel powder is 0.05-30 mu m; the zirconium element is provided by zirconium powder, and the grain size of the zirconium powder is 0.05-30 mu m; the particle size of the rare earth oxide powder is 0.05-30 mu m.
4. The welding wire according to any one of claims 1 to 3, wherein the diameter of the welding wire is 1 to 4mm.
5. The method of manufacturing a welding wire according to any one of claims 1 to 4, comprising the steps of:
(1) Vacuum preserving the powder formed according to the composition of the drug core at 100-350 ℃ for 1-5 h to obtain the treated powder;
(2) Forming a groove on an aluminum belt which accords with the composition of the outer skin elements, and placing the treated powder in the groove to obtain a welding wire blank;
(3) Drawing the welding wire blank through a wire drawing die, reducing the diameter to obtain a drawn blank; and (5) performing brightening process treatment on the stretched blank body to obtain the welding wire.
6. Use of the welding wire according to any one of claims 1 to 4 for increasing the tensile strength of welded joints of aluminum-containing metal/steel dissimilar metal materials.
7. A method of welding comprising the steps of:
A method of welding aluminum-containing metal and steel using the welding wire according to any one of claims 1 to 4.
8. The welding method according to claim 7, wherein the welding shielding gas is an inert gas, the gas flow is 10 to 20L/min, the welding current is 95 to 115A, and the welding speed is 350 to 550mm/min; the welding process is a right welding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210713812.5A CN115008064B (en) | 2022-06-22 | 2022-06-22 | Welding wire, preparation method, application and welding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210713812.5A CN115008064B (en) | 2022-06-22 | 2022-06-22 | Welding wire, preparation method, application and welding method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115008064A CN115008064A (en) | 2022-09-06 |
| CN115008064B true CN115008064B (en) | 2024-06-11 |
Family
ID=83076983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210713812.5A Active CN115008064B (en) | 2022-06-22 | 2022-06-22 | Welding wire, preparation method, application and welding method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115008064B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006283110A (en) * | 2005-03-31 | 2006-10-19 | Kobe Steel Ltd | Steel sheet to be jointed with aluminum-based material by brazing, jointing method using the steel sheet, and coupling joint |
| CN103084760A (en) * | 2013-02-22 | 2013-05-08 | 大连理工大学 | Welding stick used for welding aluminum alloy/ steel dissimilar metal |
| CN104972242A (en) * | 2015-07-10 | 2015-10-14 | 哈尔滨工业大学（威海） | Self soldering flux-cored wire for aluminum/steel melt-soldering |
| CN107009051A (en) * | 2017-06-14 | 2017-08-04 | 海宁瑞奥金属科技有限公司 | A kind of high tensile pipeline steel all-position welding low hydrogen high-ductility self-protection flux-cored wire |
| CN108161278A (en) * | 2018-01-22 | 2018-06-15 | 太原理工大学 | High entropy flux-cored wire for aluminium-steel MIG welding and preparation method thereof |
| CN108393606A (en) * | 2018-05-21 | 2018-08-14 | 桂林航天工业学院 | Self-protection flux-cored wire and its production method |
| CN113399861A (en) * | 2021-05-19 | 2021-09-17 | 西安理工大学 | Copper-nickel-based welding wire for copper-steel transition layer melting-brazing and preparation method thereof |
| CN114367759A (en) * | 2022-01-11 | 2022-04-19 | 西安理工大学 | Welding wire capable of effectively controlling Fe-Al brittle phase and preparation and welding method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11529697B2 (en) * | 2017-09-29 | 2022-12-20 | Lincoln Global, Inc. | Additive manufacturing using aluminum-containing wire |
-
2022
- 2022-06-22 CN CN202210713812.5A patent/CN115008064B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006283110A (en) * | 2005-03-31 | 2006-10-19 | Kobe Steel Ltd | Steel sheet to be jointed with aluminum-based material by brazing, jointing method using the steel sheet, and coupling joint |
| CN103084760A (en) * | 2013-02-22 | 2013-05-08 | 大连理工大学 | Welding stick used for welding aluminum alloy/ steel dissimilar metal |
| CN104972242A (en) * | 2015-07-10 | 2015-10-14 | 哈尔滨工业大学（威海） | Self soldering flux-cored wire for aluminum/steel melt-soldering |
| CN107009051A (en) * | 2017-06-14 | 2017-08-04 | 海宁瑞奥金属科技有限公司 | A kind of high tensile pipeline steel all-position welding low hydrogen high-ductility self-protection flux-cored wire |
| CN108161278A (en) * | 2018-01-22 | 2018-06-15 | 太原理工大学 | High entropy flux-cored wire for aluminium-steel MIG welding and preparation method thereof |
| CN108393606A (en) * | 2018-05-21 | 2018-08-14 | 桂林航天工业学院 | Self-protection flux-cored wire and its production method |
| CN113399861A (en) * | 2021-05-19 | 2021-09-17 | 西安理工大学 | Copper-nickel-based welding wire for copper-steel transition layer melting-brazing and preparation method thereof |
| CN114367759A (en) * | 2022-01-11 | 2022-04-19 | 西安理工大学 | Welding wire capable of effectively controlling Fe-Al brittle phase and preparation and welding method |
Non-Patent Citations (2)
| Title |
|---|
| 特种钎剂辅助铝/钢异种合金TIG熔-钎焊;宋建岭;林三宝;杨春利;马广超;;焊接学报(第02期);第45-48页第1-3节 * |
| 贺文雄等.《焊接工艺与应用》.国防工业出版社,2010,第71-72页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115008064A (en) | 2022-09-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4547032B1 (en) | Fluxless brazing method of aluminum material and aluminum clad material for fluxless brazing | |
| US4241148A (en) | Composite aluminum-containing workpieces | |
| CN108723636B (en) | Welding wire powder with low crack sensitivity, flux-cored wire, preparation and application | |
| US20200030921A1 (en) | Alloys | |
| CN113399861B (en) | Copper-nickel-based welding wire for copper-steel transition layer melting-brazing and preparation method thereof | |
| JP6109615B2 (en) | Aluminum alloy fin clad material for brazing | |
| JP2012024827A (en) | Fluxless brazing method of aluminum material and aluminum alloy brazing sheet for fluxless brazing | |
| CN114346515B (en) | Copper-nickel-based welding wire for titanium-steel arc additive transition layer and preparation method thereof | |
| CN108994479B (en) | Corrosion-resistant high-strength welding material and manufacturing method thereof | |
| JP6632839B2 (en) | Aluminum alloy filler metal and aluminum alloy welding method | |
| JP5614883B2 (en) | Fluxless brazing method of aluminum material, aluminum alloy brazing sheet for fluxless brazing, and aluminum alloy brazing material for fluxless brazing | |
| CN115008064B (en) | Welding wire, preparation method, application and welding method thereof | |
| US4905887A (en) | Process for soldering aluminum containing workpieces | |
| CN112719688A (en) | Ti-Zr-Cu-Ni amorphous solder and preparation method and application thereof | |
| JP2012030244A (en) | Fluxless brazing method for aluminum material | |
| US3948432A (en) | Brazing preforms and method of brazing | |
| CN112171105B (en) | Aluminum alloy clad material | |
| CN104942466B (en) | A kind of self-shielded welding wire and preparation method thereof | |
| CN110014246B (en) | Welding wire for welding magnesium alloy material and preparation method thereof | |
| CN103540807A (en) | 3003 aluminum alloy material for automobile water tank pipe and processing process for 3003 aluminum alloy material | |
| CN114273819B (en) | Welding flux for welding titanium alloy and preparation method and application thereof | |
| CN115151352A (en) | Aluminum alloy brazing sheet and method for producing same | |
| JPH01218795A (en) | Al alloy brazing filler metal having high fillet strength | |
| JP7240979B2 (en) | Aluminum alloy brazing sheet and manufacturing method thereof | |
| CN101829860A (en) | Welding wire for unpreheated welding of red copper thick and large part and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |