CN103831545A - Groove type aluminum alloy combined welding wire for arc welding and brazing and manufacturing method thereof - Google Patents
Groove type aluminum alloy combined welding wire for arc welding and brazing and manufacturing method thereof Download PDFInfo
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- CN103831545A CN103831545A CN201410094546.8A CN201410094546A CN103831545A CN 103831545 A CN103831545 A CN 103831545A CN 201410094546 A CN201410094546 A CN 201410094546A CN 103831545 A CN103831545 A CN 103831545A
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- welding wire
- brazing flux
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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
- B23K35/0211—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in cutting
- B23K35/0216—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
- B23K35/02—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
-
- 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
-
- 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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Abstract
The invention discloses a groove type aluminum combined welding wire for arc welding and brazing and a manufacturing method thereof and relates to the field of welding in the material processing engineering. The groove type aluminum combined welding wire comprises a welding wire strip, and a groove is formed in the middle of the welding wire strip and filled with mixed brazing flux. The welding wire strip is an aluminum alloy welding wire strip of the series of 1XXX-8XXX. The mixed brazing flux comprises, by mass, 1-90 percent of CsF-AlF3 brazing flux, 0.01-35 percent of RbF-AlF3 brazing flux, 0.001-20 percent of Al(OH)3, 0.001-0.5 percent of silica powder, 0.001-1.5 percent of gallium oxide, 0.001-2.0 percent of Al-Zr alloy and the balance KF-AlF3. The groove type aluminum alloy combined welding wire for arc welding and brazing and the manufacturing method are suitable for brazing of aluminum and aluminum alloy, aluminum and copper alloy, and the aluminum alloy and the copper alloy. Weld seams or brazing seams have high strength and high air tightness, and the extremely-good wetting and spreading performance and the extremely-good penetrating performance are achieved.
Description
Technical field
The present invention relates to the welding field in Materials Processing Engineering, be specifically related to a kind of fluted body arc-welding and soldering aluminium alloy compound 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 the quickening of Urbanization in China, the development of high ferro, urban track traffic, automobile industry is " at a tremendous pace ", the development of these industries is except increasing sharply to the demand of aluminum alloy materials, the demand of " welding material " to aluminium alloy has also proposed more, higher new demand, to meet the needs of various composition aluminium alloys, various aluminium alloy structure high-performance, high reliability welding, and " aluminium alloy compound welding wire " is 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 contains " solid welding wire ", " flux-cored wire ", " covered electrode " three classes.Covered electrode is welding rod, and only " metal-cored " of welding rod is aluminum or aluminum alloy, and this class welding rod has the aluminium alloy electrode of being called, and what it was known in the industry has L109, L209, the L309 trade mark (or claiming model).The model that solid welding wire provides according to GB/T 10858-2008 " aluminium and aluminium alloy welding wire " table 1, has tens kinds, and the most frequently used have SAl5356, SAl4047, SAl4043(also have domestic and foreign literature to be expressed as ER5356, ER4047, ER4043) etc.Aluminium alloy " flux-cored wire " is the welding material just occurring in recent years, mainly contains the Zn-Al base " flux-cored wire " for aluminium-aluminium, Solder for Al-Cu Joint Welding welding.The manufacturing process of flux-cored wire is mainly divided into two kinds of " seamless ", " seamed "." seamless " flux-cored wire production 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, what therefore extensively adopt both at home and abroad at present is " seamed " method for manufacturing flux-cored wire.The shortcoming of " seamed " flux-cored wire is that " gap " can make medicine wicking tide.
The applicant has carried out literature search, and in published Chinese patent literature, CN99100147.8 has studied the adjustment by drug core component, improves anti-moisture absorption; CN02131909.X is by adopting " applying oxidisability film at welding wire surface, to improve the corrosion resistance of flux-cored wire ".CN201010240162.4 is fabricated to the seam of seamed cored wire the seam of " with step ", to be conducive to the edge interlock of welding wire, effectively stop moisture and other chemical substance to enter flux-cored wire inside by seam, guarantee that medicine core has good anti-moisture absorption.
By the improvement to brazing flux or drug core component, " medicine core " in flux-cored wire self anti-moisture absorption performance is improved greatly, the anti-moisture absorption of flux-cored wire is no longer " problem "; The corrosion resistance of aluminium alloy self is better than the corrosion resistance of steel greatly, therefore in the scope that the problem, relating in CN99100147.8, CN02131909.X, CN201010240162.4 patent documentation, needs solve relates in the application, be no longer all " problem ".But, 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 and a variety ofly do not enumerate for this reason) be prepared into " combined wire ", to be applicable to TIG weldering or soldering, no matter be prepared into " seamed " or " seamless " flux-cored wire, be all difficult to realize " low cost ", " high efficiency ", " high-performance " and produce.This invention " a kind of fluted body arc-welding and aluminium alloy compound welding wire and manufacture method thereof for soldering " completes under this technical background.
Summary of the invention
The preparation of existing flux-cored wire, is roughly divided three classes: 1) first alloy (or simple metal) is prepared into band, and then is prepared into seamed cored wire by " seamed cored wire " former; 2) first alloy (or simple metal) is prepared into tubing, and then filling medicinal powder, then be drawn into seamless flux-cored wire; 3) adopt special dies, directly alloy (or simple metal) is squeezed into seamless flux-cored wire.Said method is subject to alloying component to change the impact that causes alloy self plasticity, workability to change, therefore, applicant find in State Intellectual Property Office of the People's Republic of China website " patent retrieval and service system " (
http:// www.pss-system.gov.cn/sipopublicsearch/portal/index.shtm l) in the hundreds of kind that can openly the inquire patent about " flux-cored wire ", in " claim " of most of patents " medicine core " composition except " sheetmetal ", all comprise more than one metal ingredients, these metals (simple metal or alloy) are exactly in order to make up for the preparation of the not enough of alloying component in " sheetmetal " of flux-cored wire or to regulate the alloy proportion of weld seam to add.
The object of this invention is to provide a kind of low cost, efficiency is high, performance is good fluted body arc-welding and soldering aluminium alloy compound welding wire and manufacture method thereof of producing.
A kind of fluted body arc-welding and soldering aluminium alloy compound welding wire, is characterized in that:
Comprise welding wire band, tool groove in the middle of welding wire band, fills in groove and mixes brazing flux; Described welding wire band is 1XXX system～8XXX line aluminium alloy welding wire band; Described mixing brazing flux composition is by mass percentage: 1～90%CsF-AlF
3brazing flux, 0.01～35%RbF-AlF
3brazing flux, 0.001～20%Al (OH)
3, 0.001～0.5% silica flour, 0.001～1.5% gallium oxide, 0.001～2.0%Al-Zr alloy, surplus is KF-AlF
3brazing flux.
The preparation method of aluminium alloy compound welding wire for a kind of fluted body arc-welding and soldering, it is characterized in that comprising following process: adopt commercially available welding wire to be prepared into fluted body welding wire band, adopt commercially available binding agent that mixing brazing flux is applied and is bonded in groove evenly, securely.
This combined wire can be used for TIG arc-welding method welding of aluminum and aluminium alloy, also can adopt gas brazing, induction brazing, furnace brazing method, brazed aluminum-aluminium alloy, Al-zn-mg-cu alloy and aluminium alloy-copper alloy.Weld seam or brazed seam not only have higher intensity and air-tightness, have splendid wetting, spreading property and permeance property simultaneously.
accompanying drawing, table explanation
Fig. 1 embodiment part welding performance test result;
Fig. 2 groove welding sectional dimension figure;
Fig. 3 invention product actual effect figure.
The specific embodiment
Adopting commercially available diameter is the 1XXX system～8XXX line aluminium alloy welding wire (or wire rod) of f2mm, adopt commercially available universal milling train first welding wire to be rolled into flat filament, flat filament, by a pair of homemade vertical roller rolling with type groove, can obtain required fluted body welding wire (or wire rod).
The object of the invention is to invent one " being applicable to arc-welding and soldering aluminium alloy compound welding wire " simultaneously, 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 brazing flux " added in no matter arc-welding and soldering, all can be to the welding process of arc-welding and soldering and welding joint mechanical property generation Beneficial Effect; Difference is that soldering is more stricter to the requirement of brazing flux " addition " than arc-welding.Brazing flux has been added (being the mass ratio of brazing flux quality and aluminium alloy brazing filler metal or welding wire), and postwelding residue can affect the performance of soldered fitting.This is because of normal adopt " lap joint " of soldering, and when brazing flux is too many, brazing flux is very difficult easily locates inner " slag inclusion " defect that forms at " lap joint " completely from lap-joint " emersion comes ", thereby reduces the mechanical property of soldered fitting.According to " industry requirement mean value ", " lap joint " intensity of soldered fitting is greater than and equals 100MPa, and therefore, one of " key factor " that process of the present invention is considered is that soldered fitting intensity must be more than or equal to 100MPa.When arc-welding, the few Welded Joints Effect on Mechanical Properties of amount volume of brazing flux (being referred to as solder flux or additive or activating agent etc. when arc-welding) is little, if the just mordant words of brazing flux residue, the use of meeting Welded Joints brings potential corrosivity (certainly, brazing flux of the present invention or title mixing brazing flux corrosivity are extremely low).But for soldering, brazing flux is certainly not all right too much, but very little, it helps weldering performance also can make soldered fitting " effectively overlap area " because of " removing the performance deficiency of oxide-film " thereby reduces the 100MPa that soldered fitting mechanical property is reduced and do not reach regulation.
Test is found, density (having considered " apparent density ") after brazing flux of the present invention mixes is about 0.95-1.0, the relative density of known aluminium is about 2.7, in actual production process, " real density " of brazing flux can accurately be controlled unlike the density of aluminium, and the addition in groove be also cannot accurately control (because brazing flux at coating procedure lower than groove surface, higher than groove surface, compactions etc. all cannot accurately or accurately control), therefore, in process of the present invention, during with arc-welding and two kinds of welding procedures of soldering, it is criterion of acceptability above that arc-welding or soldered fitting intensity are more than or equal to 100MPa, thereby determine that by " setting groove sectional area " groove size is to meet the mass ratio (controlling " brazing flux addition ") of brazing flux and aluminium alloy (being solder or welding wire), thereby reach object of the present invention.
The invention solves following key technical problem:
1) as can be seen from Figure 2, the sectional area of groove is 1.216mm
2, the sectional area of fluted body welding wire is 3.42mm
2, be about 2.8 times of groove.As everyone knows, the relative density of aluminium is about 2.7, if the relative density of brazing flux is controlled at 0.95-1.0, calculates from Fig. 2 size, and aluminium alloy and brazing flux mass ratio are about 8 ︰ 1.Test is found, in the present invention's mixing brazing flux composition range, when aluminium alloy (or claiming welding wire, welding wire band) is about 8 ︰ 1 with brazing flux (compound brazing flux) mass ratio, can meet " helping weldering " requirement.When the sectional area of groove is less than this size, it is not enough that the brazing flux amount of interpolation can seem, helps weldering performance slightly poor, and soldering speed will could meet soldering requirement lower than conventional soldering speed; If groove is greater than existing size, the brazing flux adding seems that again postwelding residue also can increase too much.
First adopt the optimization of " sequential experiment " method, determine the formula that mixes brazing flux.Coordinate 8 class aluminium alloy brazing filler metals (or welding wire) to weld according to the mixing brazing flux formula after optimizing and (comprise melting, soldering, lower same) test, determine when solder (or welding wire) is 8 ︰ 1 with the mass ratio of brazing flux, can meet the requirement of soldering, also can meet the technical requirement of TIG weldering (being argon tungsten-arc welding) molten solder.Through converting, finally determine the size of Fig. 2 again.It is of a size of on the band wide at 3.0mm, 1.14mm is thick and processes the groove that 1.60mm is wide, 0.76mm is high (rectangular channel), and now, arc-welding or soldered fitting intensity is more than 100MPa (referring to Fig. 1) all.
2) found that gallium oxide removes " specific function " of aluminum alloy surface oxide-film.
Recognize from " synthetic technology and application " first phase in 2008 the 22nd page of report that is entitled as " U.S. releases university from sufferings and develops alloy hydrogen manufacturing new technology ", the researcher that the U.S. releases university from sufferings develops recently and a kind ofly utilizes aluminum gallium alloy to add water to manufacture the new technology of hydrogen.Its principle is while adding water to aluminum gallium alloy, and aluminium, by absorbing oxygen decomposition water, produces hydrogen in this process.Gallium in alloy is key component, because form one deck pellumina on the surface of aluminium after aluminium and oxygen combination, 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, the inventor by add gallium oxide---gallium oxide (is Ga
2o
3), obtain unprecedented effect.Although recognize from " Baidupedia ", gallium oxide (is Ga
2o
3, the oxide of gallium only has this one under normal circumstances, and in this description, indication gallium oxide is Ga
2o
3) fusing point be 1740 ℃, but (be Al than aluminium oxide
2o
3) fusing point 2045oC much lower.At CsF-AlF
3brazing flux, RbF-AlF
3brazing flux, KF-AlF
3brazing flux exists under the condition of (separately or coexist), works as CsF-AlF
3, RbF-AlF
3, KF-AlF
3when fusing (their fusion temperature is 450 ℃～560 ℃ left and right), fusing point (is Al up to the aluminium oxide of 2045oC
2o
3) can react with it rapidly, melt, this can be from aluminum electrolysis technology flow process, and---employing ice crystal-aluminium oxide molten salt electrolysis is readily appreciated that (consult " Baidupedia "----electrolytic aluminium).On Aluminium Industry, (ice crystal chemistry hexafluoro sodium aluminate by name (is Na to molten cryolitic
3alF
6), referring to Baidupedia " ice crystal ") be solvent, aluminium oxide is as solute, and using carbon body as anode, aluminium liquid is as negative electrode, and that at 950 ℃-970 ℃, carries out electrolysis should obtain metallic aluminium.Ice crystal self fusing point is 1009 ℃, and still, ice crystal-aluminium oxide melts salt 950 ℃-970 ℃ i.e. fusings completely, therefore, is also understood that the lower CsF-AlF of self fusing point
3, RbF-AlF
3, KF-AlF
3compound and aluminium oxide (are Al
2o
3) can react and form the liquid state of melting at 450 ℃～560 ℃.In like manner, CsF-AlF
3, RbF-AlF
3, KF-AlF
3compound reacts easier with the gallium oxide lower than aluminium oxide fusing point.
But, gallium oxide and CsF-AlF
3, RbF-AlF
3, KF-AlF
3the GaF that reaction generates
3there is " specific function " of removing aluminum alloy surface oxide-film, and " stabilising arc performance ", in process of the test of the present invention, be found.Inventor studies discovery, in mixing brazing flux of the present invention, add 0.001～1.5% gallium oxide, the fluted body aluminium alloy compound welding wire of preparing can be for arc-welding and soldering, it is in the time of TIG arc-welding, arc stability, appearance of weld is attractive in appearance, pore-free, without the defect such as being 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 present TIG arc-welding, can't be used for MIG weldering, although be that this fluted body aluminium alloy compound welding wire can be prepared into " plate-like ", but still cannot utilize " wire feed system " of existing arc welding equipment to realize automatic 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 with) scope is comparatively suitable.Experimental study shows, the addition of gallium oxide exceedes 1.5%, while reaching 10%, the indexs such as arc stability, appearance of weld, weld properties are still in rising trend, and pore-free, the defect such as be mingled with, therefore can say that the addition of gallium oxide remains in 1.5～10% scopes " more high better ".But, because gallium is rare element, the price of gallium oxide is 2400 yuan～2800 yuan of/kilogram of left and right, and the price of Aluminium Alloys in Common Use welding wire (as 5356,4047) 60 yuan～80 yuan of/kilogram of left and right, so, consider from practicality, economy, the addition of gallium oxide is advisable to be no more than 1.5%.Guaranteeing that under the prerequisite of arc-welding, brazing property, addition is more low better, is conducive to reduce costs.But test finds, the addition of gallium oxide is lower than after 0.001%, the remarkable variation of its arc stability, and appearance of weld is bad; When soldering, the aluminium alloy brazing filler metal of fusing is in wetting, the spreading property variation on mother metal surface, and therefore, the addition of gallium oxide can not be lower than 0.001%.
3) optimized the interpolation scope of mixing the each component of brazing flux.
Test is found, mixes brazing flux key component CsF-AlF
3brazing flux can be in 1～90% range; RbF-AlF
3brazing flux can be in 0.01～35% range; Al (OH)
3can be in 0.001～20% range; KF-AlF
3the excursion of brazing flux 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, if as 1XXX owner's fine aluminium, alloying element content is very low, and its fusing point approaches 660 ℃ of fine aluminium fusing points; But 7XXX line aluminium alloy, the Zn-Al alloy (as alloys such as Zn98-Al2, Zn85-Al15, Zn78-Al22) particularly occurring in recent years, its fusing point is minimum is low to moderate 380 ℃, for soldering, the fusing point of wishing brazing flux should or at least will approach the fusing point of solder lower than solder fusing point, otherwise soldering cannot be carried out smoothly.If adopting common Nocolok brazing flux (is KF-AlF
3brazing flux, KAlF
4or K
3alF
6), its fusing point is about 565 ℃, and obvious this brazing flux is not suitable for mating with Zn-Al alloy solder.Therefore, reduce KF-AlF
3the content of brazing flux, increases CsF-AlF
3, RbF-AlF
3the content of brazing flux, can make brazing flux melting point depression to 440 ℃ left and right, thereby brazing flux can be matched with Zn-Al alloy solder, realizes high-quality, efficient, reliable brazing.Be fine aluminium for 1XXX, its fusing point approaches 660 ℃ of fine aluminium fusing points, if use the brazing flux of fusing point 440 ℃ of left and right, is also obviously unmatched, therefore, also must use fusing point to be about the KF-AlF of 565 ℃
3brazing flux.
In the present invention, the Al (OH) adding
3, silica flour, gallium oxide and Al-Zr alloy, mainly play adjusting arc stability, flux activity and brazing flux mobility, so that brazing flux can adapt to the needs of TIG arc-welding, gas brazing, furnace brazing and resistance brazing.
4) determined the kind of bonding agent.
The manufacture of aluminium alloy compound welding wire, except Design & preparation, brazing flux Composition Design and the preparation of alloy material size and shape, the strong bonded of brazing flux and alloy material is also one of key problem in technology, therefore, the selection of binding agent is very crucial.
Adding of binding agent, except guaranteeing a brazing flux is bonded on various aluminum alloy materials securely, also require it can not affect " the helping weldering performance " of mixing brazing flux, therefore, " orthogonal test " method of employing, three kinds of spendable binding agents are determined, i.e. commercial water glass, epoxy resin, acrylate.By " reciprocation " of research mixing brazing flux and binding agent, kind, the addition of mixing brazing flux are further determined, make addition variation, the change in concentration of three kinds of binding agents very micro-on " helping weldering performance " impact of mixing brazing flux, the quality management and control while having facilitated suitability for industrialized production.
According to the recipe ratio of " aluminium alloy compound welding wire and manufacture method thereof for a kind of fluted body arc-welding and soldering " of the present invention, narration the specific embodiment of the present invention.
Fluted body arc-welding of the present invention and soldering can be accomplished by following operation by aluminium alloy compound welding wire preparation process.
1) the aluminium alloy welding wire wire rod that is first f2mm by commercially available diameter is by the roll of a pair of vertical placement, and making wire flattening become thickness is the flat filament (referring to Fig. 1) that 1.15mm, width are (2.95 ± 0.05) mm;
2) by flat filament by a pair of vertical roller process equipment with self-control type groove, can be prepared into the aluminium welding wire that cross section is fluted body (or claim fluted body welding) (referring to Fig. 2, Fig. 3);
3) in the described mixing brazing flux of invention, add appropriate bonding agent of the present invention, stir for subsequent use.On commercially available seamed cored wire production equipment, utilize its " powder adding device ", the mixing brazing flux that has added bonding agent is filled up to groove, allow it by being of a size of 1.15mm(thickness) × 2.95mm(width) mould, scrape away the mixing brazing flux that exceeds groove surface, by vertical roller (roll seam is 1.14mm), will mix brazing flux compression, compacting subsequently.Brazing flux dried naturally through 1～3 hour.
By above-mentioned three steps, can prepare fluted body arc-welding and soldering aluminium alloy compound welding wire, and be easy to produce in enormous quantities.Embodiment 1 to embodiment 8 is the illustration that adopts above-mentioned steps can realize batch production, is specifically described as follows.
embodiment 1
Adopting commercially available diameter is the SAl1070(1XXX line aluminium alloy of f2mm.Referring to GB/T 10858-2008 " aluminium and aluminium alloy welding wire " Fig. 1 welding wire chemical composition, lower same.) aluminium alloy welding wire, get 1%CsF-AlF
3brazing flux, 35%RbF-AlF
3brazing flux, 20%Al (OH)
3, 0.001% silica flour, 1.5% gallium oxide, 2.0%Al-Zr alloy, surplus is KF-AlF
3the mixing brazing flux of brazing flux, adopts commercial water glass as bonding agent, and mixing brazing flux is modulated into paste, stirs for subsequent use.On commercially available seamed cored wire production equipment, utilize its " powder adding device ", the mixing brazing flux just having stirred fills up groove, allow it by being of a size of 1.15mm(thickness) × 2.95mm(width) mould, scrape away the mixing brazing flux that exceeds groove surface, by vertical roller (roll seam is 1.14mm), will mix brazing flux compression, compacting subsequently.Brazing flux dried naturally through 1～3 hour.
embodiment 2
Adopting commercially available diameter is the SAl2319(2XXX line aluminium alloy of f2mm.Referring to GB/T 10858-2008 " aluminium and aluminium alloy welding wire " Fig. 1 welding wire chemical composition, lower same.) aluminium alloy welding wire, get 90%CsF-AlF
3brazing flux, 0.01%RbF-AlF
3brazing flux, 0.001%Al (OH)
3, 0.5% silica flour, 0.001% gallium oxide, 0.001%Al-Zr alloy, surplus is KF-AlF
3the mixing brazing flux of brazing flux, adopts commercially available epoxy resin as bonding agent, and mixing brazing flux is modulated into paste, stirs for subsequent use.On commercially available seamed cored wire production equipment, utilize its " powder adding device ", the mixing brazing flux having stirred is filled up to groove, allow it by being of a size of 1.15mm(thickness) × 2.95mm(width) mould, scrape away the mixing brazing flux that exceeds groove surface, by vertical roller (roll seam is 1.14mm), will mix brazing flux compression, compacting subsequently.Brazing flux dried naturally through 1～3 hour.
embodiment 3
Adopting commercially available diameter is the SAl3103(3XXX line aluminium alloy of f2mm.Referring to GB/T 10858-2008 " aluminium and aluminium alloy welding wire " Fig. 1 welding wire chemical composition, lower same.) aluminium alloy welding wire, get 45%CsF-AlF
3brazing flux, 18%RbF-AlF
3brazing flux, 9.5%Al (OH)
3, 0.25% silica flour, 0.8% gallium oxide, 0.9%Al-Zr alloy, surplus is KF-AlF
3the mixing brazing flux of brazing flux, adopts commercial acrylate as bonding agent, and mixing brazing flux is modulated into paste, stirs for subsequent use.On commercially available seamed cored wire production equipment, utilize its " powder adding device ", the mixing brazing flux having stirred is filled up to groove, allow it by being of a size of 1.15mm(thickness) × 2.95mm(width) mould, scrape away the mixing brazing flux that exceeds groove surface, by vertical roller (roll seam is 1.14mm), will mix brazing flux compression, compacting subsequently.Brazing flux dried naturally through 1～3 hour.
embodiment 4
Adopting commercially available diameter is the SAl4047(4XXX line aluminium alloy of f2mm.Referring to GB/T 10858-2008 " aluminium and aluminium alloy welding wire " Fig. 1 welding wire chemical composition, lower same.) aluminium alloy welding wire, get 1%CsF-AlF
3brazing flux, 0.01%RbF-AlF
3brazing flux, 0.001%Al (OH)
3, 0.001% silica flour, 0.001% gallium oxide, 0.001%Al-Zr alloy, surplus is KF-AlF
3the mixing brazing flux of brazing flux, adopts commercial water glass as bonding agent, and mixing brazing flux is modulated into paste, stirs for subsequent use.On commercially available seamed cored wire production equipment, utilize its " powder adding device ", the mixing brazing flux having stirred is filled up to groove, allow it by being of a size of 1.15mm(thickness) × 2.95mm(width) mould, scrape away the mixing brazing flux that exceeds groove surface, by vertical roller (roll seam is 1.14mm), will mix brazing flux compression, compacting subsequently.Brazing flux dried naturally through 1～3 hour.
embodiment 5
Adopting commercially available diameter is the SAl5356(5XXX line aluminium alloy of f2mm.Referring to GB/T 10858-2008 " aluminium and aluminium alloy welding wire " Fig. 1 welding wire chemical composition) aluminium alloy welding wire, get 38%CsF-AlF
3brazing flux, 0.02%RbF-AlF
3brazing flux, 0.001%Al (OH)
3, 0.001% silica flour, 0.01% gallium oxide, 0.6%Al-Zr alloy, surplus is KF-AlF
3the mixing brazing flux of brazing flux, adopts commercially available epoxy resin and acrylate (Huan oxygen tree Zhi ︰ acrylate=1 ︰ 2) as bonding agent, mixing brazing flux to be modulated into paste, stirs for subsequent use.On commercially available seamed cored wire production equipment, utilize its " powder adding device ", the mixing brazing flux having stirred is filled up to groove, allow it by being of a size of 1.15mm(thickness) × 2.95mm(width) mould, scrape away the mixing brazing flux that exceeds groove surface, by vertical roller (roll seam is 1.14mm), will mix brazing flux compression, compacting subsequently.Brazing flux dried naturally through 1～3 hour.
embodiment 6
Adopting commercially available diameter is the 6061(6XXX line aluminium alloy of f2mm.Referring to GB/T 3190-1996 " distortion aluminium and aluminum alloy chemical composition " Fig. 1 (Continued), chemical composition, lower same.) aluminum-alloy wire material, get 15%CsF-AlF
3brazing flux, 2%RbF-AlF
3brazing flux, 0.1%Al (OH)
3, 0.02% silica flour, 0.002% gallium oxide, 0.02%Al-Zr alloy, surplus is KF-AlF
3the mixing brazing flux of brazing flux, adopts commercial acrylate as bonding agent, and mixing brazing flux is modulated into paste, stirs for subsequent use.On commercially available seamed cored wire production equipment, utilize its " powder adding device ", the mixing brazing flux having stirred is filled up to groove, allow it by being of a size of 1.15mm(thickness) × 2.95mm(width) mould, scrape away the mixing brazing flux that exceeds groove surface, by vertical roller (roll seam is 1.14mm), will mix brazing flux compression, compacting subsequently.Brazing flux dried naturally through 1～3 hour.
embodiment 7
Adopting commercially available diameter is the Zn78-Al22(7XXX line aluminium alloy of f2mm) aluminum-alloy wire material, get 52.5%CsF-AlF
3brazing flux, 0.8%RbF-AlF
3brazing flux, 0.001%Al (OH)
3, 0.001% silica flour, 0.001% gallium oxide, 0.01%Al-Zr alloy, surplus is KF-AlF
3the mixing brazing flux of brazing flux, adopts commercial water glass as bonding agent, and mixing brazing flux is modulated into paste, stirs for subsequent use.On commercially available seamed cored wire production equipment, utilize its " powder adding device ", the mixing brazing flux having stirred is filled up to groove, allow it by being of a size of 1.15mm(thickness) × 2.95mm(width) mould, scrape away the mixing brazing flux that exceeds groove surface, by vertical roller (roll seam is 1.14mm), will mix brazing flux compression, compacting subsequently.Brazing flux dried naturally through 1～3 hour.
embodiment 8
Adopting commercially available diameter is the 8090(8XXX line aluminium alloy of f2mm.Referring to GB/T 3190-1996 " distortion aluminium and aluminum alloy chemical composition " Fig. 1 (Continued), chemical composition, lower same.) aluminium alloy welding wire, get 45%CsF-AlF
3brazing flux, 6%RbF-AlF
3brazing flux, 0.05%Al (OH)
3, 0.05% silica flour, 0.02% gallium oxide, 0.05%Al-Zr alloy, surplus is KF-AlF
3the mixing brazing flux of brazing flux, adopts commercially available epoxy resin as bonding agent, and mixing brazing flux is modulated into paste, stirs for subsequent use.On commercially available seamed cored wire production equipment, utilize its " powder adding device ", the mixing brazing flux having stirred is filled up to groove, allow it by being of a size of 1.15mm(thickness) × 2.95mm(width) mould, scrape away the mixing brazing flux that exceeds groove surface, by vertical roller (roll seam is 1.14mm), will mix brazing flux compression, compacting subsequently.Brazing flux dried naturally through 1～3 hour.
Embodiment 1～embodiment 8 is carried out to the test data of soldering, arc-welding test according to GB/T 11363-2008 " soldered fitting Strength Testing Methods ", GB/T 22086-2008 " aluminium and aluminium alloy arc-welding recommend technique " respectively tabulating, can more clearly understand and understand technical characterstic and the technique effect of this invention.
Claims (7)
1. a fluted body arc-welding and soldering aluminium alloy compound welding wire, is characterized in that:
Comprise welding wire band, in the middle of welding wire band, there is groove, in groove, fill and mix brazing flux; Described welding wire band is 1XXX system～8XXX line aluminium alloy welding wire band; Described mixing brazing flux composition is by mass percentage: 1～90%CsF-AlF
3brazing flux, 0.01～35%RbF-AlF
3brazing flux, 0.001～20%Al (OH)
3, 0.001～0.5% silica flour, 0.001～1.5% gallium oxide, 0.001～2.0%Al-Zr alloy, surplus is KF-AlF
3brazing flux.
2. fluted body arc-welding according to claim 1 and soldering aluminium alloy compound welding wire, is characterized in that:
Described welding wire band and mixing brazing flux mass ratio are 8 ︰ 1.
3. fluted body arc-welding according to claim 1 and soldering aluminium alloy compound welding wire, is characterized in that:
Described welding wire ribbon dimension is wide 3.0mm, thick 1.14mm; Described groove is wide 1.6mm, high 0.76mm.
4. the preparation method of aluminium alloy compound welding wire for fluted body arc-welding according to claim 1 and soldering, is characterized in that comprising following process:
Adopt commercially available welding wire to be prepared into fluted body welding wire band, adopt commercially available binding agent that mixing brazing flux is applied and is bonded in groove evenly, securely.
5. aluminium alloy compound welding wire preparation method for fluted body arc-welding according to claim 4 and soldering, is characterized in that:
Described welding wire band and mixing brazing flux mass ratio are 8 ︰ 1.
6. the preparation method of aluminium alloy compound welding wire for fluted body arc-welding according to claim 4 and soldering, is characterized in that:
Described commercially available gage of wire is f2.0mm; Fluted body welding wire ribbon dimension after described preparation is wide 3.0mm, thick 1.14mm; Described groove is wide 1.6mm, high 0.76mm.
7. aluminium alloy compound welding wire preparation method for fluted body arc-welding according to claim 4 and soldering, is characterized in that: described commercially available binding agent is waterglass or epoxy resin or acrylate.
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| CN104625484A (en) * | 2014-12-11 | 2015-05-20 | 江西东鹏新材料有限责任公司 | Novel rubidium and cesium brazing flux |
| CN108213761A (en) * | 2017-12-29 | 2018-06-29 | 郑州机械研究所有限公司 | A kind of included brazing flux spiral state composite soldering cake and preparation method thereof |
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