CN106238954A - A kind of rare earth modified aluminium alloy welding wire and preparation method thereof - Google Patents
A kind of rare earth modified aluminium alloy welding wire and preparation method thereof Download PDFInfo
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- CN106238954A CN106238954A CN201610614638.3A CN201610614638A CN106238954A CN 106238954 A CN106238954 A CN 106238954A CN 201610614638 A CN201610614638 A CN 201610614638A CN 106238954 A CN106238954 A CN 106238954A
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- 238000003466 welding Methods 0.000 title claims abstract description 49
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 34
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 27
- -1 rare earth modified aluminium Chemical class 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000012535 impurity Substances 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 17
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 15
- 229910052706 scandium Inorganic materials 0.000 claims abstract description 14
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 13
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 13
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 13
- 229910052691 Erbium Inorganic materials 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 12
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 10
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 10
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 10
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 10
- 229910052709 silver Inorganic materials 0.000 claims abstract description 10
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 10
- 238000000265 homogenisation Methods 0.000 claims description 24
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 238000000137 annealing Methods 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 10
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 10
- 239000011575 calcium Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 238000007670 refining Methods 0.000 claims description 8
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 7
- 238000007499 fusion processing Methods 0.000 claims description 7
- 229910052700 potassium Inorganic materials 0.000 claims description 7
- 239000011591 potassium Substances 0.000 claims description 7
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000001110 calcium chloride Substances 0.000 claims description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 5
- QCCDYNYSHILRDG-UHFFFAOYSA-K cerium(3+);trifluoride Chemical compound [F-].[F-].[F-].[Ce+3] QCCDYNYSHILRDG-UHFFFAOYSA-K 0.000 claims description 5
- 229910001610 cryolite Inorganic materials 0.000 claims description 5
- 239000001103 potassium chloride Substances 0.000 claims description 5
- 235000011164 potassium chloride Nutrition 0.000 claims description 5
- 239000011780 sodium chloride Substances 0.000 claims description 5
- BYMUNNMMXKDFEZ-UHFFFAOYSA-K trifluorolanthanum Chemical compound F[La](F)F BYMUNNMMXKDFEZ-UHFFFAOYSA-K 0.000 claims description 5
- WMIYKQLTONQJES-UHFFFAOYSA-N hexafluoroethane Chemical compound FC(F)(F)C(F)(F)F WMIYKQLTONQJES-UHFFFAOYSA-N 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052903 pyrophyllite Inorganic materials 0.000 claims description 4
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 230000008520 organization Effects 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000010441 alabaster Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- UHCBBWUQDAVSMS-UHFFFAOYSA-N fluoroethane Chemical compound CCF UHCBBWUQDAVSMS-UHFFFAOYSA-N 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000010415 tropism Effects 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
nullThe invention discloses a kind of rare earth modified aluminium alloy welding wire and preparation method thereof，The composition of aluminium alloy welding wire includes by weight percentage: Mg:3.2 5.3%、Ti:0.12 0.2%、Cr:0.1 0.3%、Mn:0.1 0.2%、Sc:0.08 0.2%、Er:0.1 0.2%、Mo:0.8 1.7%、W:1 2%、V:0.2 1%、Bi:0.01 0.05%、Zr:0.25 0.35%、Ag:0.1 0.25%、Be:0.5 1.8%、Co:0.2 0.8%、Ca:0.3 1.5%、Fe+Si≤0.28%、Zn≤0.20%，Single content≤0.05% of other impurity element、Other impurity element total content≤0.15%，Surplus is Al.
Description
Technical field
The present invention relates to welding wire technology field, particularly relate to a kind of rare earth modified aluminium alloy welding wire and preparation method thereof.
Background technology
Along with the development of solder technology, aluminum and Welded structure, oneself is widely used in civilian and military industry field, as respectively
Plant pressure vessels for the chemical industry, the vehicles, naval vessel, aircraft, space probe, rocket etc..Wherein, welding wire for affect weld structure,
Composition, solid-liquid liquidus temperature, the corrosion resistance of weld seam, the hot crackability of Jin Feng district mother metal and the key factor of mechanical property.Aluminum closes
Gold solder silk internal soundness is heavily dependent on the quality of primary aluminum material.In the preparation process of aluminium alloy welding wire, aluminium alloy melts
Refining degassing effect is the best, it will enables aluminum alloy to welding wire hydrogen content higher, causes and generate more pore in welding process, simultaneously
Aluminium alloy has the defect that thermal coefficient of expansion is big, and commissure is easily generated crackle, thus limits the application of aluminium alloy welding wire.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes a kind of rare earth modified aluminium alloy welding wire and preparation thereof
Method, the welding wire dense structure obtained, smooth surface, welding performance is stable, and the hardness of welding point and hot strength are high, resist and open
Fragility can be good.
The rare earth modified aluminium alloy welding wire of one that the present invention proposes, its composition includes by weight percentage: Mg:3.2-
5.3%, Ti:0.12-0.2%, Cr:0.1-0.3%, Mn:0.1-0.2%, Sc:0.08-0.2%, Er:0.1-0.2%, Mo:
0.8-1.7%, W:1-2%, V:0.2-1%, Bi:0.01-0.05%, Zr:0.25-0.35%, Ag:0.1-0.25%, Be:
0.5-1.8%, Co:0.2-0.8%, Ca:0.3-1.5%, Fe+Si≤0.28%, Zn≤0.20%, other impurity element is single
Content≤0.05%, other impurity element total content≤0.15%, surplus is Al.
Preferably, in its composition, the percentage by weight of Ti and Zr meet relationship below: 0.42%≤Ti+Zr≤
0.5%.
Preferably, in its composition, the percentage by weight of Mg, Sc, Er, Ti meets relationship below: 4.2%≤Mg+0.33
× Sc+0.33 × Er+0.33 × Ti≤4.7%.
Preferably, in its composition, the percentage by weight of Cr, Mo, W, V meets relationship below: 3.5%≤Cr+Mo+0.5
× W+V≤3.9%.
Preferably, its composition includes by weight percentage: Mg:4.1%, Ti:0.18%, Cr:0.16%, Mn:0.15%,
Sc:0.2%, Er:0.15%, Mo:1.6%, W:1.92%, V:0.85%, Bi:0.03%, Zr:0.28%, Ag:0.2%,
Be:1.2%, Co:0.55%, Ca:0.9%, Fe:0.18%, Si:0.1%, Zn:0.10%, the single content of other impurity element
≤ 0.05%, other impurity element total content≤0.15%, surplus is Al.
The preparation method of a kind of described rare earth modified aluminium alloy welding wire that the present invention also proposes, including melting, refine, casting
Make, homogenization, extrude, draw and surface process；Wherein, include adding melting liquid gross weight 0.1-0.2% at fusion process
Refining agent.
Preferably, its raw material of described refining agent includes by weight: potassium chloride 20-50 part, sodium chloride 20-50 part, fluorine aluminum
Acid potassium 5-15 part, potassium carbonate 2-5 part, barium sulfate 1-5 part, calcium chloride 2-10 part, lanthanum fluoride 1-5 part, cerium fluoride 0.5-3 part, leaf
Alabaster 1-5 part, kieselguhr 3-5 part, cryolite 3-8 part, perfluoroethane 1-2 part.
Preferably, in Homogenization Process, the temperature of homogenization is 475-485 DEG C, and the time of homogenization is 30-38h；Will
The temperature of homogenization controls at 475-485 DEG C, and the time of homogenization controls at 30-38h, makes the dendrite in system fade away,
Non-equilibrium phase the most gradually back dissolving, in alloy substrate, significantly improves the combination property of welding wire.
Preferably, before drawing, also including stress relief annealing, wherein, stress relief annealing temperature is 350-370 DEG C, the time
For 60-80h；Having carried out stress relief annealing before drawing, and stress relief annealing temperature controlled at 350-370 DEG C, the time controls
At 60-80h, turn avoid crystal grain while fully eliminating work-hardening effect and excessively grow up and be unfavorable for stretching.
Rare earth modified aluminium alloy welding wire of the present invention, adds Ti and Zr in its composition, defines Al in weld seam3Ti
And Al3Zr, promotes the refinement of seam organization, in optimal way, the content of Ti and Zr is controlled 0.42%≤Ti+Zr≤
The scope of 0.5%, except forming Al in weld seam3Ti and Al3Al is yet forms both outside Zr3(Ti, Zr) phase particle serves as the forming core of weld seam
Core, further promotes structure refinement, makes seam organization the most tiny, and butt welded seam thinning effect is best, strength of joint and moulding
Property is the highest；In system, with the addition of Mg, Sc, Er and Ti of trace, significantly refined tissue, weld seam defines Al3Sc、
Al3Er、Al3Ti and AlMg strengthens precipitated phase, in optimal way, by being controlled by the percentage by weight of Mg, Sc, Er and Ti
In the range of 4.2%≤Mg+0.33 × Sc+0.33 × Er+0.33 × Ti≤4.7%, the welding point after welding wire welding is made to weld
The equiaxed grain structure in seam district is tiny and is evenly distributed, and the column crystal growth district of fusion area narrows, and joint microstructure transition is mild, side
Tropism weakens, and the hardness of welding point, tensile strength and bending strength are significantly increased, and the welding performance making weld seam is good, anti-
Cracking performance is excellent；In system, add Cr, Mo, W and V, and the percentage by weight controlled is at 3.5%≤Cr+Mo+0.5
In the range of × W+V≤3.9%, significantly improve hardness and the toughness of welding point；In system, add Mn, and rationally control
Make its ratio in system so that it is coordinate with Zr, the Cr in system, while ensureing that seam organization obtains refined crystalline strengthening
Improve Al3The disperse phase invigoration effect of the primary phases such as Zr, improves the strength factor of welding point；It is simultaneously introduced Ag unit
Element, and give a rational Ag content range, significantly improve the tensile strength of welding point, plasticity and welding coefficient；Add
Add the Bi of trace, after coordinating with Sc, Er, reduce the surface tension of aluminium alloy welding wire, add its wettability and spreadability, subtract
Welding leak source incidence rate less, can reduce the hydrogen content of aluminum liquid, the formation of suppression hydrogen blistering simultaneously further, improve the cause of weld seam
Close property.
Detailed description of the invention
Below, by specific embodiment, technical scheme is described in detail.
Embodiment 1
The rare earth modified aluminium alloy welding wire of one that the present invention proposes, its composition includes by weight percentage: Mg:5.3%,
Ti:0.12%, Cr:0.3%, Mn:0.1%, Sc:0.2%, Er:0.1%, Mo:1.7%, W:1%, V:1%, Bi:0.01%,
Zr:0.35%, Ag:0.1%, Be:1.8%, Co:0.2%, Ca:1.5%, Fe+Si≤0.28%, Zn≤0.20%, other is miscellaneous
Single content≤0.05% of prime element, other impurity element total content≤0.15%, surplus is Al.
The preparation method of a kind of described rare earth modified aluminium alloy welding wire that the present invention proposes, including melting, refine, casting,
Homogenization, extrude, draw and surface process；Wherein, the refine adding melting liquid gross weight 0.2% is included at fusion process
Agent.
Embodiment 2
The rare earth modified aluminium alloy welding wire of one that the present invention proposes, its composition includes by weight percentage: Mg:3.2%,
Ti:0.2%, Cr:0.1%, Mn:0.2%, Sc:0.08%, Er:0.2%, Mo:0.8%, W:2%, V:0.2%, Bi:
0.05%, Zr:0.25%, Ag:0.25%, Be:0.5%, Co:0.8%, Ca:0.3%, Fe+Si≤0.28%, Zn≤
0.20%, single content≤0.05% of other impurity element, other impurity element total content≤0.15%, surplus is Al.
The preparation method of a kind of described rare earth modified aluminium alloy welding wire that the present invention proposes, including melting, refine, casting,
Homogenization, extrude, draw and surface process；Wherein, the refine adding melting liquid gross weight 0.1% is included at fusion process
Agent.
Embodiment 3
The rare earth modified aluminium alloy welding wire of one that the present invention proposes, its composition includes by weight percentage: Mg:4.3%,
Ti:0.16%, Cr:0.18%, Mn:0.1%, Sc:0.17%, Er:0.12%, Mo:1.5%, W:1.8%, V:1%, Bi:
0.032%, Zr:0.27%, Ag:0.16%, Be:1.1%, Co:0.3%, Ca:0.6%, Fe:0.12%, Si:0.08%,
Zn:0.20%, single content≤0.05% of other impurity element, other impurity element total content≤0.15%, surplus is Al.
The preparation method of a kind of described rare earth modified aluminium alloy welding wire that the present invention proposes, including melting, refine, casting,
Homogenization, extrude, draw and surface process；Wherein, the refine adding melting liquid gross weight 0.11% is included at fusion process
Agent；
Its raw material of described refining agent includes by weight: 50 parts of potassium chloride, 20 parts of sodium chloride, potassium fluoroaluminate 15 parts, carbonic acid
2 parts of potassium, 5 parts of barium sulfate, 2 parts of calcium chloride, lanthanum fluoride 5 parts, cerium fluoride 0.5 part, pyrophyllite 5 parts, 3 parts of kieselguhr, cryolite 3
Part, perfluoroethane 2 parts；
In Homogenization Process, the temperature of homogenization is 475 DEG C, and the time of homogenization is 38h；
Before drawing, also including that stress relief annealing, stress relief annealing temperature are 350 DEG C, the time is 80h.
Embodiment 4
The rare earth modified aluminium alloy welding wire of one that the present invention proposes, its composition includes by weight percentage: Mg:4.25%,
Ti:0.13%, Cr:0.24%, Mn:0.16%, Sc:0.09%, Er:0.18%, Mo:1.6%, W:2%, V:0.9%, Bi:
0.02%, Zr:0.31%, Ag:0.21%, Be:0.68%, Co:0.68%, Ca:1.3%, Fe:0.06%, Si:0.06%,
Zn:0.08%, single content≤0.05% of other impurity element, other impurity element total content≤0.15%, surplus is Al.
The preparation method of a kind of described rare earth modified aluminium alloy welding wire that the present invention proposes, including melting, refine, casting,
Homogenization, extrude, draw and surface process；Wherein, the refine adding melting liquid gross weight 0.18% is included at fusion process
Agent；
Its raw material of described refining agent includes by weight: 20 parts of potassium chloride, 50 parts of sodium chloride, potassium fluoroaluminate 5 parts, potassium carbonate
5 parts, 1 part of barium sulfate, 10 parts of calcium chloride, lanthanum fluoride 1 part, cerium fluoride 3 parts, pyrophyllite 1 part, 5 parts of kieselguhr, cryolite 8 parts, six
Fluoroethane 1 part；
In Homogenization Process, the temperature of homogenization is 485 DEG C, and the time of homogenization is 30h；
Before drawing, also including that stress relief annealing, stress relief annealing temperature are 370 DEG C, the time is 60h.
Embodiment 5
The rare earth modified aluminium alloy welding wire of one that the present invention proposes, its composition includes by weight percentage: Mg:4.1%,
Ti:0.18%, Cr:0.16%, Mn:0.15%, Sc:0.2%, Er:0.15%, Mo:1.6%, W:1.92%, V:0.85%,
Bi:0.03%, Zr:0.28%, Ag:0.2%, Be:1.2%, Co:0.55%, Ca:0.9%, Fe:0.18%, Si:0.1%,
Zn:0.10%, single content≤0.05% of other impurity element, other impurity element total content≤0.15%, surplus is Al.
The preparation method of a kind of described rare earth modified aluminium alloy welding wire that the present invention proposes, including melting, refine, casting,
Homogenization, extrude, draw and surface process；Wherein, the refine adding melting liquid gross weight 0.15% is included at fusion process
Agent；
Its raw material of described refining agent includes by weight: 38 parts of potassium chloride, 40 parts of sodium chloride, potassium fluoroaluminate 12 parts, carbonic acid
3.2 parts of potassium, 4 parts of barium sulfate, 8 parts of calcium chloride, lanthanum fluoride 4 parts, cerium fluoride 2 parts, pyrophyllite 3.8 parts, 4 parts of kieselguhr, cryolite 5
Part, perfluoroethane 1.8 parts；
In Homogenization Process, the temperature of homogenization is 480 DEG C, and the time of homogenization is 35h；
Before drawing, also including that stress relief annealing, stress relief annealing temperature are 360 DEG C, the time is 70h.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (9)
- A 1. rare earth modified aluminium alloy welding wire, it is characterised in that its composition includes by weight percentage: Mg:3.2-5.3%, Ti:0.12-0.2%, Cr:0.1-0.3%, Mn:0.1-0.2%, Sc:0.08-0.2%, Er:0.1-0.2%, Mo:0.8- 1.7%, W:1-2%, V:0.2-1%, Bi:0.01-0.05%, Zr:0.25-0.35%, Ag:0.1-0.25%, Be:0.5- 1.8%, Co:0.2-0.8%, Ca:0.3-1.5%, Fe+Si≤0.28%, Zn≤0.20%, the single content of other impurity element ≤ 0.05%, other impurity element total content≤0.15%, surplus is Al.
- The most rare earth modified aluminium alloy welding wire, it is characterised in that in its composition, the weight hundred of Ti and Zr Proportion by subtraction meets relationship below: 0.42%≤Ti+Zr≤0.5%.
- Rare earth modified aluminium alloy welding wire the most according to claim 1 or claim 2, it is characterised in that in its composition, Mg, Sc, Er, Ti Percentage by weight meet relationship below: 4.2%≤Mg+0.33 × Sc+0.33 × Er+0.33 × Ti≤4.7%.
- 4. according to aluminium alloy welding wire rare earth modified according to any one of claim 1-3, it is characterised in that in its composition, Cr, The percentage by weight of Mo, W, V meets relationship below: 3.5%≤Cr+Mo+0.5 × W+V≤3.9%.
- 5. according to aluminium alloy welding wire rare earth modified according to any one of claim 1-4, it is characterised in that its composition by weight hundred Proportion by subtraction includes: Mg:4.1%, Ti:0.18%, Cr:0.16%, Mn:0.15%, Sc:0.2%, Er:0.15%, Mo:1.6%, W:1.92%, V:0.85%, Bi:0.03%, Zr:0.28%, Ag:0.2%, Be:1.2%, Co:0.55%, Ca:0.9%, Fe:0.18%, Si:0.1%, Zn:0.10%, single content≤0.05% of other impurity element, other impurity element total content ≤ 0.15%, surplus is Al.
- 6. the preparation method of rare earth modified aluminium alloy welding wire as according to any one of claim 1-5, it is characterised in that bag Include melting, refine, casting, homogenization, extrude, draw and surface process；Wherein, include adding melting liquid at fusion process total The refining agent of weight 0.1-0.2%.
- The preparation method of the most rare earth modified aluminium alloy welding wire, it is characterised in that it is former for described refining agent Material includes by weight: potassium chloride 20-50 part, sodium chloride 20-50 part, potassium fluoroaluminate 5-15 part, potassium carbonate 2-5 part, barium sulfate 1-5 part, calcium chloride 2-10 part, lanthanum fluoride 1-5 part, cerium fluoride 0.5-3 part, pyrophyllite 1-5 part, kieselguhr 3-5 part, cryolite 3- 8 parts, perfluoroethane 1-2 part.
- 8. according to the preparation method of aluminium alloy welding wire rare earth modified described in claim 6 or 7, it is characterised in that in homogenization mistake Cheng Zhong, the temperature of homogenization is 475-485 DEG C, and the time of homogenization is 30-38h.
- 9. according to the preparation method of aluminium alloy welding wire rare earth modified according to any one of claim 6-8, it is characterised in that drawing Before system, also including stress relief annealing, wherein, stress relief annealing temperature is 350-370 DEG C, and the time is 60-80h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610614638.3A CN106238954A (en) | 2016-07-29 | 2016-07-29 | A kind of rare earth modified aluminium alloy welding wire and preparation method thereof |
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| CN109940306A (en) * | 2019-04-02 | 2019-06-28 | 安徽省金兰金盈铝业有限公司 | Aluminum-magnesium alloy welding wire for aluminum alloy structural parts of transportation vehicles |
| CN112658268A (en) * | 2020-12-11 | 2021-04-16 | 长沙新材料产业研究院有限公司 | Rare earth modified TiAl alloy powder for additive manufacturing and preparation method thereof |
| CN115958328A (en) * | 2022-12-29 | 2023-04-14 | 中铝广西有色稀土开发有限公司 | Rare earth element reinforced aluminum alloy welding wire and preparation method thereof |
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Application publication date: 20161221 |