CN103990917B - A kind of fluted body aluminium alloy compound welding wire and manufacture method thereof - Google Patents
A kind of fluted body aluminium alloy compound welding wire and manufacture method thereof Download PDFInfo
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- CN103990917B CN103990917B CN201410135474.7A CN201410135474A CN103990917B CN 103990917 B CN103990917 B CN 103990917B CN 201410135474 A CN201410135474 A CN 201410135474A CN 103990917 B CN103990917 B CN 103990917B
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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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0227—Rods, wires
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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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
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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
- B23K35/24—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
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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
- B23K35/40—Making wire or rods for soldering or welding
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- Nonmetallic Welding Materials (AREA)
- Arc Welding In General (AREA)
Abstract
A kind of fluted body aluminium alloy compound welding wire, comprises welding wire band, has groove in the middle of the cross section of described welding wire band, fills and mix brazing flux in groove; Described welding wire band is 1XXX system～8XXX line aluminium alloy welding wire band; Each composition of described mixing brazing flux is by mass percentage: 1～90%CsF-AlF3Brazing flux, 0.01～35%RbF-AlF3Brazing flux, 0.001～20%Al (OH)3, 0.001～0.5% zinc oxide (ZnO), 0.001～1.5% gallium oxide (Ga2O3), 0.001～2.0%Al-Zr alloy, surplus is KF-AlF3Brazing flux. And provide a kind of manufacture method of fluted body aluminium alloy compound welding wire. The present invention is applicable to TIG weldering or soldering simultaneously and effectively takes into account low cost, high efficiency and high-performance.
Description
Technical field
The present invention relates to the welding field in Materials Processing Engineering, be specifically related to a kind of aluminium alloy againClose welding wire and manufacture method thereof.
Background technology
The high speed development of modern industry must be using the progress of equipment manufacture as basis. Along with meThe quickening of state's urbanization process, the development of high ferro, urban track traffic, automobile industry is " oneDay a thousand li ", the development of these industries is except increasing sharply to the demand of aluminum alloy materials, rightThe demand of " welding material " of aluminium alloy has also proposed more, higher new demand, each to meetPlant the needs of composition aluminium alloy, various aluminium alloy structure high-performance, high reliability welding, and " aluminiumAlloy combined wire " be exactly for meeting " new ideas " welding material that above-mentioned requirements puts forward.
At present, the welding material such as domestic and international existing aluminium alloy welding wire mainly contain " solid welding wire "," flux-cored wire ", " covered electrode " three classes. Covered electrode is welding rod, only welding rod" metal-cored " be aluminum or aluminum alloy, this class welding rod has the aluminium alloy electrode of being called, it in the industryThat knows has L109, L209, a L309 trade mark (or claiming model). Solid welding wire is according to GB/TThe model that 10858-2008 " aluminium and aluminium alloy welding wire " table 1 provides, has tens kinds, the most frequently usedHave SAl5356, SAl4047, SAl4043 (also have domestic and foreign literature be expressed as ER5356,ER4047, ER4043) etc. Aluminium alloy " flux-cored wire " just occurred in recent yearsWelding material, mainly contains the Zn-Al base " flux-cored wire " for aluminium-aluminium, Solder for Al-Cu Joint Welding welding. MedicineThe manufacturing process of core welding wire is mainly divided into two kinds of " seamless ", " seamed ". " seamless " flux-cored wire is rawProduct method exists that solder flux is filled difficulty, equipment is numerous and diverse, it is inhomogeneous to fill, draw dial often,Cost is high, invest the problems such as large, and what therefore extensively adopt both at home and abroad at present is the weldering of " seamed " medicine coreYarn production method. The shortcoming of " seamed " flux-cored wire is that " gap " can make medicine wicking tide.
In published Chinese patent literature, CN99100147.8 has studied and has passed through drug core componentAdjustment, improve anti-moisture absorption; CN02131909.X " applies oxygen at welding wire surface by adoptingVoltinism film, to improve the corrosion resistance of flux-cored wire ". CN201010240162.4 will haveThe seam of seam flux-cored wire is fabricated to the seam of " with step ", stings with the edge that is conducive to welding wireClose, effectively stop moisture and other chemical substance to enter flux-cored wire inside by seam, guaranteeMedicine core has good anti-moisture absorption.
The preparation of existing flux-cored wire, is roughly divided three classes: 1) first by alloy (or simple metal)Be prepared into band, and then be prepared into seamed medicine by " seamed cored wire " formerCore welding wire; 2) first alloy (or simple metal) is prepared into tubing, and then filling medicinal powder, thenBe drawn into seamless flux-cored wire; 3) adopt special dies, directly alloy (or simple metal) is squeezedBe pressed into seamless flux-cored wire. Said method is subject to alloying component variation to cause alloy self plasticity, easyThe impact that processing characteristics changes, therefore, applicant finds the knowledge in country of the People's Republic of China (PRC)Property right board web " patent retrieval and service system "(http://www.pss-system.gov.cn/sipopublicsearch/portal/index.shtml) canIn the patent of the hundreds of kind openly inquiring about " flux-cored wire ", most of patents " right wantAsk " in " medicine core " composition except " sheetmetal ", all comprise more than one metal ingredients, these goldBelonging to (simple metal or alloy) is exactly in order to make up for the preparation of alloy in " sheetmetal " of flux-cored wireThe alloy proportion not enough or adjusting weld seam of composition adds.
By the improvement to brazing flux or drug core component, make " medicine core " in flux-cored wire self anti-Moisture absorption performance improves greatly; The corrosion resistance of aluminium alloy self is better than the corrosion resistance of steel greatly, still,How self intensity is equivalent to carbon steel and plasticity well below the high-strength aluminum alloy of carbon steel(as SAl5356 welding wire, also have a variety of do not enumerate for this reason) be prepared into " combined wire " withBe applicable to TIG weldering or soldering, no matter be prepared into " seamed " or " seamless " flux-cored wire, allBeing difficult to realize " low cost ", " high efficiency ", " high-performance " produces.
Summary of the invention
In order to overcome cannot being applicable to of existing aluminium alloy compound welding wire and manufacture method thereof simultaneouslyTIG weldering or soldering, cannot take into account low cost, high efficiency and high performance deficiency, the invention providesOne be applicable to TIG weldering or soldering simultaneously and effectively take into account low cost, high efficiency and high propertyFluted body aluminium alloy compound welding wire and the manufacture method thereof of energy.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of fluted body aluminium alloy compound welding wire, comprises welding wire band, the horizontal stroke of described welding wire bandIn the middle of cross section, have groove, in groove, fill and mix brazing flux; Described welding wire band is 1XXXSystem～8XXX line aluminium alloy welding wire band; Each composition of described mixing brazing flux is by quality hundredProportion by subtraction is: 1～90%CsF-AlF3Brazing flux, 0.01～35%RbF-AlF3Brazing flux, 0.001～20％Al(OH)3, 0.001～0.5% zinc oxide (ZnO), 0.001～1.5% gallium oxide(Ga2O3), 0.001～2.0%Al-Zr alloy, surplus is KF-AlF3Brazing flux.
Further, described welding wire band is the matter that Fig. 2 calculates with the described mass ratio that mixes brazing fluxAmount ratio.
Further, the cross section of described welding wire band is centrosymmetric, the width of described grooveFor 1.6mm, the width of described aluminium welding wire is 3.0mm, and the height of described groove is 0.76mm,The thickness of described aluminium welding wire is 1.14mm.
A manufacture method for fluted body aluminium alloy compound welding wire, described manufacture method comprises followingStep:
(1) select 1XXX system～8XXX line aluminium alloy welding wire wire rod, by aluminium alloy welding wire wire rodMake wire flattening become flat filament by roll, flat filament, by the vertical roller with type groove, is madeThe aluminium welding wire that standby one-tenth cross section is fluted body;
(2) in mixing brazing flux, add binding agent, stir; Each one-tenth of described mixing brazing fluxDivide and be by mass percentage: 1～90%CsF-AlF3Brazing flux, 0.01～35%RbF-AlF3Brazing flux,0.001～20％Al(OH)3, 0.001～0.5% zinc oxide (ZnO), 0.001～1.5% oxidationGallium (Ga2O3), 0.001～2.0%Al-Zr alloy, surplus is KF-AlF3Brazing flux;
(3) the mixing brazing flux that has added binding agent is filled up to groove, mix brazing flux and compress and compacting, prickerAgent is dried naturally, makes fluted body aluminium alloy compound welding wire.
Further, in described step (3), scrape away the mixing brazing flux that exceeds groove surface, subsequentlyTo mix brazing flux compression, compacting by vertical roller.
Further again, described welding wire band is that Fig. 2 calculates with the described mass ratio that mixes brazing fluxMass ratio.
The cross section of described aluminium welding wire is centrosymmetric, and the width of described groove is 1.6mm, instituteThe width of stating aluminium welding wire is 3.0mm, and the height of described groove is 0.76mm, described aluminium welding wireThickness be 1.14mm.
Described binding agent be following one or both and mix above: 1. waterglass, 2. epoxy treeFat, 3. acrylate.
Technical conceive of the present invention is: from " synthetic technology and application " first phase the 22nd in 2008Page is entitled as the report of " U.S. releases university from sufferings and develops alloy hydrogen manufacturing new technology " to be recognized, the U.S. is generalThe researcher of degree university develops recently and a kind ofly utilizes aluminum gallium alloy to add water to manufacture the new work of hydrogenSkill. Its principle is while adding water to aluminum gallium alloy, and aluminium is by absorbing oxygen decomposition water, at thisIn process, produce hydrogen. Gallium in alloy is key component because aluminium and oxygen in conjunction with after at aluminiumSurface forms one deck pellumina, and gallium can stop the formation of this film, and reaction is continued,Until all aluminium is all used to produce hydrogen.
From above-mentioned report, the effect of gallium gains enlightenment, and the inventor is by adding the oxide of gallium---gallium oxide (is Ga2O3), obtain unprecedented effect. Although from " Baidupedia "Recognize, gallium oxide (is Ga2O3, the oxide of gallium only has this one under normal circumstances, thisIn description, indication gallium oxide is Ga2O3) fusing point be 1740 DEG C, but than aluminium oxide ( Al2O3) 2045 DEG C of fusing points much lower. At CsF-AlF3Brazing flux, RbF-AlF3Brazing flux,KF-AlF3Brazing flux exists under the condition of (separately or coexist), works as CsF-AlF3、RbF-AlF3、KF-AlF3When fusing (their fusion temperature is 450 DEG C～560 DEG C left and right), fusing point up toThe aluminium oxide of 2045 DEG C (is Al2O3) can react with it rapidly, melt, this can be from electrolytic aluminiumTechnological process---adopt ice crystal-aluminium oxide molten salt electrolysis to be readily appreciated that and (consult " BaiduEncyclopaedia "---electrolytic aluminium). On Aluminium Industry, (ice crystal chemistry is by name for molten cryoliticHexafluoro sodium aluminate (is Na3AlF6), referring to Baidupedia " ice crystal ") be solvent, aluminium oxideAs solute, using carbon body as anode, aluminium liquid, as negative electrode, enters at 950 DEG C-970 DEG CRow electrolysis should obtain metallic aluminium. Ice crystal self fusing point is 1009 DEG C, still, and ice crystal-Aluminium oxide melts salt 950 DEG C-970 DEG C i.e. fusings completely, therefore, is also understood that self fusing pointLower CsF-AlF3、RbF-AlF3、KF-AlF3Compound and aluminium oxide (are Al2O3) energyEnough react and formed the liquid state of melting at 450 DEG C～560 DEG C. In like manner, CsF-AlF3、RbF-AlF3、KF-AlF3Compound holds with the reacting more of gallium oxide lower than aluminium oxide fusing pointEasily.
But, gallium oxide and CsF-AlF3、RbF-AlF3、KF-AlF3The GaF that reaction generates3There is " specific function " of removing aluminum alloy surface oxide-film, and " stabilising arc performance ", at thisIn bright process of the test, be found. Inventor studies discovery, in mixing brazing flux of the present invention, addsAdd 0.001～1.5% gallium oxide, the fluted body aluminium alloy compound welding wire of preparing can be forArc-welding and soldering, its in the time of TIG arc-welding, arc stability, appearance of weld is attractive in appearance, pore-free,The defects such as nothing is mingled with, weld properties excellence, this there is no precedent in current welding material.But, due to the limitation of the shape of its fluted body aluminium alloy compound welding wire, can only be used at presentTIG arc-welding, can't be used for MIG weldering, although this fluted body aluminium alloy compound welding wire canTo be prepared into " plate-like ", but still cannot utilize " wire feed system " of existing arc welding equipment to realizeAutomatic welding, and can only be used for TIG arc-welding this " semi-automatic welding " method.
The Optimum Experiment of gallium oxide addition is found, its addition is controlled at 0.001～1.5%(mass percent, lower same) scope is comparatively suitable. Experimental study shows, the interpolation of gallium oxideAmount exceedes 1.5%, while reaching 10%, and arc stability, appearance of weld, weld propertiesStill in rising trend etc. index, and pore-free, the defect such as be mingled with, therefore can say gallium oxideAddition remain " more high better " in 1.5～10% scopes. But, because gallium is rare unitElement, the price of gallium oxide is 2400 yuan～2800 yuan of/kilogram of left and right, and Aluminium Alloys in Common Use welding wireThe price of (as 5356,4047) 60 yuan～80 yuan of/kilogram of left and right, so, from realityConsider by property, economy, the addition of gallium oxide is advisable to be no more than 1.5%. Ensure arc-welding,Under the prerequisite of brazing property, addition is more low better, is conducive to reduce costs. But, testFind, the addition of gallium oxide is lower than after 0.001%, the remarkable variation of its arc stability, weld seamBe shaped bad; When soldering, the aluminium alloy brazing filler metal of fusing is at wetting, the spreading property on mother metal surfaceVariation, therefore, the addition of gallium oxide can not be lower than 0.001%.
Optimize the interpolation scope of mixing the each component of brazing flux: test is found, mixes mainly group of brazing fluxDivide CsF-AlF3Brazing flux can be in 1～90% range; RbF-AlF3Brazing flux can be 0.01～35% range; Al (OH)3Can be in 0.001～20% range; KF-AlF3The change of brazing fluxChange scope is restricted hardly, and this fusion temperature for " adjusting " mixing brazing flux provides convenience.Because aluminium alloy is tied to 8XXX system from 1XXX, its variation of melting point is very large, as 1XXXIf owner's fine aluminium, alloying element content is very low, and its fusing point approaches 660 DEG C of fine aluminium fusing points; But7XXX line aluminium alloy, particularly in recent years occur Zn-Al alloy (as Zn98-Al2,The alloy such as Zn85-Al15, Zn78-Al22), its fusing point is minimum is low to moderate 380 DEG C, for soldering, wish that the fusing point of brazing flux should or at least will approach the fusing point of solder lower than solder fusing point, noSoldering cannot be carried out smoothly. If adopting common Nocolok brazing flux (is KF-AlF3PrickerAgent, KAlF4Or K3AlF6), its fusing point is about 565 DEG C, and obvious this brazing flux is not suitable for and zinc-aluminium alloy brazing filler metal coupling. Therefore, reduce KF-AlF3The content of brazing flux, increases CsF-AlF3、RbF-AlF3The content of brazing flux, can make brazing flux melting point depression to 440 DEG C left and right, thereby make prickerAgent can match with Zn-Al alloy solder, realizes high-quality, efficient, reliable brazing. RightBe fine aluminium in 1XXX, its fusing point approaches 660 DEG C of fine aluminium fusing points, if use fusing point at 440 DEG CThe brazing flux of left and right, is also obviously unmatched, therefore, also must use fusing point to be about 565 DEG CKF-AlF3Brazing flux.
In the present invention, the Al (OH) adding3, zinc oxide, gallium oxide and Al-Zr alloy,Main plaing a part regulates arc stability, flux activity and brazing flux mobility, so that brazing fluxCan adapt to the needs of TIG arc-welding, gas brazing, furnace brazing and resistance brazing.
The manufacture of aluminium alloy compound welding wire, except the Design & preparation of alloy material size and shape,Brazing flux Composition Design with preparation outside, the strong bonded of brazing flux and alloy material be also key problem in technology itOne, therefore, the selection of binding agent is very crucial.
Adding of binding agent, be bonded in securely various aluminium alloy materials except guaranteeing a brazing fluxOutside on material, also require it can not affect " the helping weldering performance " of mixing brazing flux, therefore, " just adoptingHand over test " method, determine three kinds of spendable binding agents, i.e. waterglass, epoxy resin, thirdOlefin(e) acid ester. By " reciprocation " of research mixing brazing flux and binding agent, further determine mixedClose kind, the addition of brazing flux, make addition variation, the change in concentration pair of three kinds of binding agents" helping weldering performance " impact that mixes brazing flux is very micro-, the quality management and control while having facilitated suitability for industrialized production.
According to the formula of " a kind of fluted body aluminium alloy compound welding wire and manufacture method thereof " of the present inventionRatio, narration the specific embodiment of the present invention.
Beneficial effect of the present invention is mainly manifested in: be applicable to TIG weldering or soldering simultaneously and haveEffect is taken into account low cost, high efficiency and high-performance.
Brief description of the drawings
Fig. 1 is the cross sectional representation of the welding wire band of fluted body aluminium alloy compound welding wire.
Fig. 2 is the cross sectional representation of fluted body aluminium alloy compound welding wire.
Fig. 3 is embodiment 1～8 welding performance test result figure.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1
See figures.1.and.2, a kind of fluted body aluminium alloy compound welding wire, comprises welding wire band,Tool groove in the middle of welding wire band, fills in groove and mixes brazing flux; Described welding wire band is 1XXXSystem～8XXX line aluminium alloy welding wire band; Described mixing brazing flux composition is by mass percentage:1～90％CsF-AlF3Brazing flux, 0.01～35%RbF-AlF3Brazing flux, 0.001～20%Al(OH)3, 0.001～0.5% zinc oxide (ZnO), 0.001～1.5% gallium oxide (Ga2O3)，0.001～2.0%Al-Zr alloy, surplus is KF-AlF3Brazing flux.
As can be seen from Figure 2, the sectional area of groove is 1.216mm2, the sectional area of fluted body welding wire is3.42mm2, be about 2.8 times of groove. As everyone knows, the relative density of aluminium is about 2.7, asThe relative density of fruit brazing flux is controlled at 0.95～1.0, calculates known aluminium alloy from Fig. 2 sizeMass ratio with brazing flux. Test discovery, in the present invention's mixing brazing flux composition range, aluminium alloy(or claiming welding wire, welding wire band) is the matter that Fig. 2 calculates with brazing flux (compound brazing flux) mass ratioAmount than time, can meet " helping weldering " requirement. When the sectional area of groove is less than this size, interpolationIt is not enough that brazing flux amount can seem, helps weldering performance slightly poor, and soldering speed will be lower than conventional soldering speedCan meet soldering requirement; If groove is greater than existing size, the brazing flux adding seems again too much,Postwelding residue also can increase.
First adopt the optimization of " sequential experiment " method, determine the formula that mixes brazing flux. After optimizingMixing brazing flux formula coordinate 8 class aluminium alloy brazing filler metals (or welding wire) to weld (to comprise fusingWeldering, soldering, lower same) test, determine that solder (or welding wire) and the mass ratio of brazing flux are figure2 quality of calculating than time, can meet the requirement of soldering, also can meet TIG weldering (is tungsten electrodeArgon arc welding) technical requirement of molten solder. Through converting, finally determine the size of Fig. 2 again.It is of a size of and on the band wide at 3.0mm, 1.14mm is thick, processes that 1.60mm is wide, 0.76mmHigh groove (rectangular channel), now, arc-welding or soldered fitting intensity are all more than 100MPa.
In the present embodiment, described mixing brazing flux composition is by mass percentage: 1%CsF-AlF3Brazing flux, 35%RbF-AlF3Brazing flux, 20%Al (OH)3, 0.001% zinc oxide, 1.5% oxidationGallium, 2.0%Al-Zr alloy, surplus is KF-AlF3Brazing flux.
A manufacture method for fluted body aluminium alloy compound welding wire, comprises the following steps:
(1) select 1XXX system～8XXX line aluminium alloy welding wire wire rod, by aluminium alloy welding wire wire rodMake wire flattening become flat filament by roll, flat filament, by the vertical roller with type groove, is madeThe aluminium welding wire that standby one-tenth cross section is fluted body;
(2) in mixing brazing flux, add binding agent, stir; Each one-tenth of described mixing brazing fluxDivide and be by mass percentage: 1～90%CsF-AlF3Brazing flux, 0.01～35%RbF-AlF3Brazing flux,0.001～20％Al(OH)3, 0.001～0.5% zinc oxide ZnO, 0.001～1.5% gallium oxideGa2O3, 0.001～2.0%Al-Zr alloy, surplus is KF-AlF3Brazing flux;
(3) the mixing brazing flux that has added binding agent is filled up to groove, mix brazing flux and compress and compacting, prickerAgent is dried naturally, makes fluted body aluminium alloy compound welding wire.
In the present embodiment, adopt welding wire to be prepared into fluted body welding wire band, adopt binding agent to mixClosing brazing flux applies and is bonded in groove evenly, securely. This combined wire can be used for TIG electricityArc welding procedure welding of aluminum and aluminium alloy, also can adopt pricker in gas brazing, induction brazing, stoveSoldering method, brazed aluminum-aluminium alloy, Al-zn-mg-cu alloy and aluminium alloy-copper alloy. Weld seam or brazed seamNot only there is higher intensity and air-tightness, there is splendid wetting, spreading property simultaneously and oozePerformance thoroughly.
In the present embodiment, adopting commercially available diameter is that the 1XXX system～8XXX of φ 2mm is that aluminium closesGold solder silk (or wire rod), adopts commercially available universal milling train first welding wire to be rolled into flat filament, and flat filament is logicalCross a pair of homemade vertical roller rolling with type groove, can obtain required fluted body welding wire (orWire rod).
Adopting commercially available diameter is 1XXX system～8XXX line aluminium alloy welding wire (or the line of φ 2mmMaterial), adopt commercially available universal milling train first welding wire to be rolled into flat filament, flat filament is by a pair of homemadeWith the vertical roller rolling of type groove, can obtain required fluted body welding wire (or wire rod).
The object of the invention is to invent one and can " be applicable to arc-welding and soldering aluminium simultaneouslyAlloy combined wire ", therefore, can consider something in common and the difference of arc-welding and soldering simultaneously.Something in common is, appropriate, suitable " brazing flux or mix pricker is added in no matter arc-welding and solderingAgent ", all can produce favourable shadow to the welding process of arc-welding and soldering and welding joint mechanical propertyRing; Difference is that soldering is more stricter to the requirement of brazing flux " addition " than arc-welding. Brazing fluxAdded (being the mass ratio of brazing flux quality and aluminium alloy brazing filler metal or welding wire), postwelding residue can affectThe performance of soldered fitting. This often adopts " lap joint " because of soldering, when brazing flux is too many,Brazing flux is very difficult completely from lap-joint " emersion comes ", easily locates the inner " folder that forms at " lap joint "Slag " defect, thus the mechanical property of reduction soldered fitting. According to " industry requirement mean value ", pricker" lap joint " intensity of plumb joint is greater than and equals 100MPa, and therefore, process of the present invention is consideredOne of " key factor " be that soldered fitting intensity must be more than or equal to 100MPa. When arc-welding, prickerThe amount volume of agent (being referred to as solder flux or additive or activating agent etc. when arc-welding) is few to connecingEffect on Mechanical Properties is little, if mordant words of brazing flux residue just, can be to connecingThe use of head brings (brazing flux of the present invention or the corrosion of title mixing brazing flux certainly, of potential corrosivityProperty is extremely low). But for soldering, brazing flux is certainly not all right too much, but very little, it helps welderingPerformance also can make soldered fitting " effectively overlap area " because of " removing the performance deficiency of oxide-film "Thereby reduce the 100MPa that soldered fitting mechanical property is reduced and do not reach regulation.
Test discovery, the density after brazing flux of the present invention mixes (has been considered " pine dressDensity ") be about 0.95～1.0, the relative density of known aluminium is about 2.7, due to actual productionCheng Zhong, " real density " of brazing flux can accurately be controlled unlike the density of aluminium, and at grooveIn addition be also cannot accurately control (because brazing flux coating procedure lower than groove surface,All cannot accurately or accurately control higher than groove surface, compaction etc.), therefore, the present inventionIn process, during with arc-welding and two kinds of welding procedures of soldering, arc-welding or soldered fitting intensity are greater than etc.Be criterion of acceptability above in 100MPa, thereby determine groove by " setting groove sectional area "To meet the mass ratio of brazing flux and aluminium alloy (being solder or welding wire), (i.e. " brazing flux adds size in controlEnter amount "), thus reach object of the present invention.
Fluted body aluminium alloy compound welding wire manufacture process of the present invention can obtain by following operationTo realizing.
1) be first that the aluminium alloy welding wire wire rod of φ 2mm is by a pair of vertical placement by commercially available diameterRoll, making wire flattening become thickness is that 1.15mm, width are (2.95 ± 0.05) mmFlat filament;
2) by flat filament by a pair of vertical roller process equipment with self-control type groove, can manufacture cutFace is the aluminium welding wire (or claiming fluted body welding) (referring to Fig. 1, Fig. 2) of fluted body;
3) in the described mixing brazing flux of invention, add appropriate binding agent of the present invention, stir standbyWith. On commercially available seamed cored wire production equipment, utilize its " powder adding device ",The mixing brazing flux that has added binding agent is filled up to groove, make it (thick by being of a size of 1.15mmDegree) mould of × 2.95mm (width), scrape away the mixing brazing flux that exceeds groove surface, withBy vertical roller (roll seam is 1.14mm), will mix brazing flux compression, compacting afterwards.Brazing flux dried naturally through 1～3 hour.
By above-mentioned three steps, can produce fluted body arc-welding and soldering aluminium alloy compoundWelding wire, and be easy to produce in enormous quantities.
In the present embodiment, adopting commercially available diameter is that (1XXX is that aluminium closes for the SAl1070 of φ 2mmGold. Referring to GB/T10858-2008 " aluminium and aluminium alloy welding wire " table 1 welding wire chemical composition,Lower same. ) aluminium alloy welding wire, get 1%CsF-AlF3Brazing flux, 35%RbF-AlF3Brazing flux, 20％Al(OH)3, 0.001% zinc oxide, 1.5% gallium oxide, 2.0%Al-Zr alloy, surplus isKF-AlF3The mixing brazing flux of brazing flux, adopts commercial water glass as binding agent, will mix brazing fluxBe modulated into paste, stir for subsequent use. On commercially available seamed cored wire production equipment, profitWith its " powder adding device ", the mixing brazing flux just having stirred fills up groove, makes it logicalCross the mould that is of a size of 1.15mm (thickness) × 2.95mm (width), scrape away exceed recessedThe mixing brazing flux of groove face, by vertical roller (roll seam is 1.14mm), will mix subsequentlyBrazing flux compresses, compacting. Brazing flux dried naturally through 1～3 hour.
Embodiment 2
See figures.1.and.2, in the present embodiment, described mixing brazing flux composition is by quality percentageThan being: 90%CsF-AlF3Brazing flux, 0.01%RbF-AlF3Brazing flux, 0.001%Al (OH)3，0.5% zinc oxide, 0.001% gallium oxide, 0.001%Al-Zr alloy, surplus is KF-AlF3Brazing flux.
Adopting commercially available diameter is SAl2319 (the 2XXX line aluminium alloy of φ 2mm. Referring to GB/T10858-2008 " aluminium and aluminium alloy welding wire " table 1 welding wire chemical composition, lower same. ) aluminium alloyWelding wire, gets 90%CsF-AlF3Brazing flux, 0.01%RbF-AlF3Brazing flux, 0.001%Al (OH)3，0.5% zinc oxide, 0.001% gallium oxide, 0.001%Al-Zr alloy, surplus is KF-AlF3PrickerThe mixing brazing flux of agent, adopts commercially available epoxy resin as binding agent, and mixing brazing flux is modulated into creamShape, stirs for subsequent use. On commercially available seamed cored wire production equipment, utilize its " powderAdding set ", the mixing brazing flux having stirred is filled up to groove, allow it by being of a size ofThe mould of 1.15mm (thickness) × 2.95mm (width), scrapes away the mixing that exceeds groove surfaceBrazing flux, subsequently by vertical roller (roll seam is 1.14mm), will mix brazing flux compress,Compacting. Brazing flux dried naturally through 1～3 hour.
Other schemes of the present embodiment are all identical with embodiment 1.
Embodiment 3
See figures.1.and.2, in the present embodiment, described mixing brazing flux composition is by quality percentageThan being: 45%CsF-AlF3Brazing flux, 18%RbF-AlF3Brazing flux, 9.5%Al (OH)3，0.25% zinc oxide, 0.8% gallium oxide, 0.9%Al-Zr alloy, surplus is KF-AlF3Brazing flux.
Adopting commercially available diameter is SAl3103 (the 3XXX line aluminium alloy of φ 2mm. Referring to GB/T10858-2008 " aluminium and aluminium alloy welding wire " table 1 welding wire chemical composition, lower same. ) aluminium alloyWelding wire, gets 45%CsF-AlF3Brazing flux, 18%RbF-AlF3Brazing flux, 9.5%Al (OH)3，0.25% zinc oxide, 0.8% gallium oxide, 0.9%Al-Zr alloy, surplus is KF-AlF3Mixing of brazing fluxClose brazing flux, adopt commercial acrylate as binding agent, mixing brazing flux is modulated into paste, stirMix evenly for subsequent use. On commercially available seamed cored wire production equipment, " powder adds dress to utilize itPut ", the mixing brazing flux having stirred is filled up to groove, make it (thick by being of a size of 1.15mmDegree) mould of × 2.95mm (width), scrape away the mixing brazing flux that exceeds groove surface, subsequentlyBy vertical roller (roll seam is 1.14mm), will mix brazing flux compression, compacting. Brazing fluxNaturally dried through 1～3 hour.
Other schemes of the present embodiment are all identical with embodiment 1.
Embodiment 4
See figures.1.and.2, in the present embodiment, described mixing brazing flux composition is by quality percentageThan being: 1%CsF-AlF3Brazing flux, 0.01%RbF-AlF3Brazing flux, 0.001%Al (OH)3，0.001% zinc oxide, 0.001% gallium oxide, 0.001%Al-Zr alloy, surplus is KF-AlF3Brazing flux.
Adopting commercially available diameter is SAl4047 (the 4XXX line aluminium alloy of φ 2mm. Referring to GB/T10858-2008 " aluminium and aluminium alloy welding wire " table 1 welding wire chemical composition, lower same. ) aluminium alloyWelding wire, gets 1%CsF-AlF3Brazing flux, 0.01%RbF-AlF3Brazing flux, 0.001%Al (OH)3，0.001% zinc oxide, 0.001% gallium oxide, 0.001%Al-Zr alloy, surplus is KF-AlF3The mixing brazing flux of brazing flux, adopts commercial water glass as binding agent, and mixing brazing flux is modulated into creamShape, stirs for subsequent use. On commercially available seamed cored wire production equipment, utilize its " powderAdding set ", the mixing brazing flux having stirred is filled up to groove, allow it by being of a size ofThe mould of 1.15mm (thickness) × 2.95mm (width), scrapes away the mixing that exceeds groove surfaceBrazing flux, subsequently by vertical roller (roll seam is 1.14mm), will mix brazing flux compress,Compacting. Brazing flux dried naturally through 1～3 hour.
Other schemes of the present embodiment are all identical with embodiment 1.
Embodiment 5
See figures.1.and.2, in the present embodiment, described mixing brazing flux composition is by quality percentageThan being: 38%CsF-AlF3Brazing flux, 0.02%RbF-AlF3Brazing flux, 0.001%Al (OH)3，0.001% zinc oxide, 0.01% gallium oxide, 0.6%Al-Zr alloy, surplus is KF-AlF3Brazing flux.
Adopting commercially available diameter is SAl5356 (the 5XXX line aluminium alloy of φ 2mm. Referring to GB/T10858-2008 " aluminium and aluminium alloy welding wire " table 1 welding wire chemical composition) aluminium alloy welding wire, get38％CsF-AlF3Brazing flux, 0.02%RbF-AlF3Brazing flux, 0.001%Al (OH)3，0.001％Zinc oxide, 0.01% gallium oxide, 0.6%Al-Zr alloy, surplus is KF-AlF3The mixing of brazing fluxBrazing flux, adopts commercially available epoxy resin and acrylate (Huan oxygen tree Zhi ︰ acrylate=1 ︰ 2)As binding agent, mixing brazing flux is modulated into paste, stir for subsequent use. Commercially available seamedOn flux-cored wire production equipment, utilize its " powder adding device ", by the mixing having stirredBrazing flux fills up groove, allows it by being of a size of 1.15mm (thickness) × 2.95mm (width)Mould, scrape away the mixing brazing flux that exceeds groove surface, subsequently by vertical roller (roll shop buildingGap is 1.14mm), will mix brazing flux compression, compacting. Brazing flux dried naturally through 1～3 hour.
Other schemes of the present embodiment are all identical with embodiment 1.
Embodiment 6
See figures.1.and.2, in the present embodiment, described mixing brazing flux composition is by quality percentageThan being: 15%CsF-AlF3Brazing flux, 2%RbF-AlF3Brazing flux, 0.1%Al (OH)3，0.02％Zinc oxide, 0.002% gallium oxide, 0.02%Al-Zr alloy, surplus is KF-AlF3Brazing flux.
Adopting commercially available diameter is 6061 (the 6XXX line aluminium alloys of φ 2mm. Referring to GB/T3190-1996 " distortion aluminium and aluminum alloy chemical composition " table 1 (Continued), chemical composition, lower same. )Aluminum-alloy wire material, gets 15%CsF-AlF3Brazing flux, 2%RbF-AlF3Brazing flux, 0.1%Al (OH)3，0.02% zinc oxide, 0.002% gallium oxide, 0.02%Al-Zr alloy, surplus is KF-AlF3PrickerThe mixing brazing flux of agent, adopts commercial acrylate as binding agent, and mixing brazing flux is modulated into creamShape, stirs for subsequent use. On commercially available seamed cored wire production equipment, utilize its " powderAdding set ", the mixing brazing flux having stirred is filled up to groove, allow it by being of a size ofThe mould of 1.15mm (thickness) × 2.95mm (width), scrapes away the mixing that exceeds groove surfaceBrazing flux, subsequently by vertical roller (roll seam is 1.14mm), will mix brazing flux compress,Compacting. Brazing flux dried naturally through 1～3 hour.
Other schemes of the present embodiment are all identical with embodiment 1.
Embodiment 7
See figures.1.and.2, in the present embodiment, described mixing brazing flux composition is by quality percentageThan being: 52.5%CsF-AlF3Brazing flux, 0.8%RbF-AlF3Brazing flux, 0.001%Al (OH)3，0.001% zinc oxide, 0.001% gallium oxide, 0.01%Al-Zr alloy, surplus is KF-AlF3Brazing flux.
Adopting commercially available diameter is Zn78-Al22 (7XXX line aluminium alloy) aluminum-alloy wire of φ 2mmMaterial, gets 52.5%CsF-AlF3Brazing flux, 0.8%RbF-AlF3Brazing flux, 0.001%Al (OH)3，0.001% zinc oxide, 0.001% gallium oxide, 0.01%Al-Zr alloy, surplus is KF-AlF3The mixing brazing flux of brazing flux, adopts commercial water glass as binding agent, and mixing brazing flux is modulated into creamShape, stirs for subsequent use. On commercially available seamed cored wire production equipment, utilize its " powderAdding set ", the mixing brazing flux having stirred is filled up to groove, allow it by being of a size ofThe mould of 1.15mm (thickness) × 2.95mm (width), scrapes away the mixing that exceeds groove surfaceBrazing flux, subsequently by vertical roller (roll seam is 1.14mm), will mix brazing flux compress,Compacting. Brazing flux dried naturally through 1～3 hour.
Other schemes of the present embodiment are all identical with embodiment 1.
Embodiment 8
See figures.1.and.2, in the present embodiment, described mixing brazing flux composition is by quality percentageThan being: 45%CsF-AlF3Brazing flux, 6%RbF-AlF3Brazing flux, 0.05%Al (OH)3，0.05% zinc oxide, 0.02% gallium oxide, 0.05%Al-Zr alloy, surplus is KF-AlF3Brazing flux.
Adopting commercially available diameter is 8090 (the 8XXX line aluminium alloys of φ 2mm. Referring to GB/T3190-1996 " distortion aluminium and aluminum alloy chemical composition " table 1 (Continued), chemical composition, lower same. )Aluminium alloy welding wire, gets 45%CsF-AlF3Brazing flux, 6%RbF-AlF3Brazing flux, 0.05%Al (OH)3，0.05% zinc oxide, 0.02% gallium oxide, 0.05%Al-Zr alloy, surplus is KF-AlF3PrickerThe mixing brazing flux of agent, adopts commercially available epoxy resin as binding agent, and mixing brazing flux is modulated into creamShape, stirs for subsequent use. On commercially available seamed cored wire production equipment, utilize its " powderAdding set ", the mixing brazing flux having stirred is filled up to groove, allow it by being of a size ofThe mould of 1.15mm (thickness) × 2.95mm (width), scrapes away the mixing that exceeds groove surfaceBrazing flux, subsequently by vertical roller (roll seam is 1.14mm), will mix brazing flux compress,Compacting. Brazing flux dried naturally through 1～3 hour.
Other schemes of the present embodiment are all identical with embodiment 1.
By embodiment 1～embodiment 8 respectively according to GB/T11363-2008 " soldered fitting intensityTest method ", GB/T22086-2008 " aluminium and aluminium alloy arc-welding recommend technique " carry out soldering,The test data of arc-welding test is listed as into Fig. 3, can more clearly understand and understand this inventionTechnical characterstic and technique effect.
Claims (6)
1. a fluted body aluminium alloy compound welding wire, comprises welding wire band, it is characterized in that: the cross section of described welding wire bandCentre has groove, fills and mix brazing flux in groove; Described welding wire band is 1XXX system～8XXX line aluminium alloy welding wire bandMaterial; Each composition of described mixing brazing flux is by mass percentage: 1～90%CsF-AlF3Brazing flux, 0.01～35%RbF-AlF3Brazing flux, 0.001～20%Al (OH)3, 0.001～0.5% zinc oxide ZnO, 0.001～1.5% gallium oxideGa2O3, 0.001～2.0%Al-Zr alloy, surplus is KF-AlF3Brazing flux.
2. fluted body aluminium alloy compound welding wire as claimed in claim 1, is characterized in that: the cross section of described welding wire bandBe centrosymmetric, the width of described groove is 1.6mm, and the width of described welding wire band is 3.0mm, and the height of described groove is0.76mm, the thickness of described welding wire band is 1.14mm.
3. a manufacture method for fluted body aluminium alloy compound welding wire as claimed in claim 1, is characterized in that: described systemMaking method comprises the following steps:
(1) select 1XXX system～8XXX line aluminium alloy welding wire wire rod, by roll, wire flattening is become in aluminium alloy welding wire wire rodFor flat filament, flat filament, by the vertical roller with type groove, is prepared into the aluminium welding wire that cross section is fluted body;
(2) in mixing brazing flux, add binding agent, stir; Each composition of described mixing brazing flux by mass percentageFor: 1～90%CsF-AlF3Brazing flux, 0.01～35%RbF-AlF3Brazing flux, 0.001～20%Al (OH)3，0.001～0.5% zinc oxide ZnO, 0.001～1.5% gallium oxide Ga2O3, 0.001～2.0%Al-Zr alloy, surplus is KF-AlF3Brazing flux;
(3) the mixing brazing flux that has added binding agent is filled up to groove, mix brazing flux and compress and compacting, brazing flux dries naturally, makesFluted body aluminium alloy compound welding wire.
4. the manufacture method of fluted body aluminium alloy compound welding wire as claimed in claim 3, is characterized in that: described step(3) in, scrape away the mixing brazing flux that exceeds groove surface, will mix brazing flux compression, compacting by vertical roller subsequently.
5. the manufacture method of the fluted body aluminium alloy compound welding wire as described in claim 3 or 4, is characterized in that: described aluminiumThe cross section of welding wire is centrosymmetric, and the width of described groove is 1.6mm, and the width of described aluminium welding wire is 3.0mm, described recessedThe height of groove is 0.76mm, and the thickness of described aluminium welding wire is 1.14mm.
6. the manufacture method of the fluted body aluminium alloy compound welding wire as described in claim 3 or 4, is characterized in that: described stickyKnot agent be following one or both and mixing above: 1. waterglass, 2. epoxy resin, 3. acrylate.
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| CN104551450B (en) * | 2014-12-11 | 2016-08-24 | 南京航空航天大学 | Caesium rubidium brazing flux containing gallium oxide |
| CN105537806B (en) * | 2016-03-15 | 2018-02-27 | 江西东鹏新材料有限责任公司 | Caesium rubidium brazing flux containing zinc fluoroborate |
| CN108356438B (en) * | 2017-12-30 | 2021-03-26 | 揭阳市中洲金刚石工具有限公司 | Welding wire with flux groove and using method |
| CN110000488B (en) * | 2019-01-22 | 2020-11-13 | 南京理工大学 | Aluminum alloy welding wire containing Ga and Nd |
| CN109604860B (en) * | 2019-01-22 | 2021-02-19 | 浙江宇光铝材有限公司 | Ga and Pr-containing aluminum alloy welding wire and manufacturing method and application thereof |
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Denomination of invention: A kind of groove type aluminum alloy composite welding wire and its manufacturing method Effective date of registration: 20220803 Granted publication date: 20160518 Pledgee: Industrial and Commercial Bank of China Limited Wuyi sub branch Pledgor: ZHEJIANG YUGUANG ALUMINUM MATERIALS Co.,Ltd. Registration number: Y2022330001595 |