CN103990917A - Groove type aluminum alloy combined soldering wire and manufacturing method thereof - Google Patents
Groove type aluminum alloy combined soldering wire and manufacturing method thereof Download PDFInfo
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- CN103990917A CN103990917A CN201410135474.7A CN201410135474A CN103990917A CN 103990917 A CN103990917 A CN 103990917A CN 201410135474 A CN201410135474 A CN 201410135474A CN 103990917 A CN103990917 A CN 103990917A
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- brazing flux
- welding wire
- alf
- aluminium alloy
- groove
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Classifications
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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
-
- 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
- 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
- B23K35/40—Making wire or rods for soldering or welding
Abstract
The invention provides a groove type aluminum alloy combined soldering wire which comprises a soldering wire strip material. A groove is formed in the middle of the cross section of the soldering wire strip material and filled with mixed soldering flux. The soldering wire strip material is from 1XXX series to 8XXX series. The mixed soldering flux comprises, by mass, 1% to 90% of CsF-AlF3 soldering flux, 0.01% to 35% of RbF-AlF3 soldering flux, 0.001% to 20% of Al(OH)3, 0.001% to 0.5% of ZnO, 0.001% to 1.5% of Ga2O3, 0.001% to 2.0% of Al-Zr alloy, and the balance KF-AlF3 soldering flux. The invention further provides a manufacturing method of the groove type aluminum alloy combined soldering wire. The groove type aluminum alloy combined soldering wire is suitable for TIG welding or soldering, low in cost, and high in efficiency and 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 compound welding wire and manufacture method thereof.
Background technology
The high speed development of modern industry must be usingd the progressive as basic of equipment manufacture.Quickening along with 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, demand to " welding material " of 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 it is known in the industry L109, L209, the L309 trade mark (or claiming model).The model that solid welding wire provides according to GB/T10858-2008 < < aluminium and aluminium alloy welding wire > > table 1, have tens kinds, 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 exist solder flux fill difficulty, equipment numerous and diverse, fill inhomogeneous, 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.
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.
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.The impact that said method is changed by alloying component to cause alloy self plasticity, workability can change, therefore, applicant's discovery 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 relevant patent of " flux-cored wire " of the hundreds of kind that can openly inquire, 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.
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 corrosion resistance of aluminium alloy self is better than the corrosion resistance of steel greatly, 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.
Summary of the invention
In order to overcome cannot being applicable to TIG weldering or soldering, cannot taking into account low cost, high efficiency and high performance deficiency of existing aluminium alloy compound welding wire and manufacture method thereof simultaneously, the invention provides and be a kind ofly applicable to TIG weldering or soldering simultaneously and effectively take into account low cost, high efficiency and high performance fluted body aluminium alloy compound welding wire and manufacture method thereof.
The technical solution adopted for the present invention to solve the technical problems is:
A 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-AlF
3brazing flux, 0.01～35%RbF-AlF
3brazing flux, 0.001～20%Al (OH)
3, 0.001～0.5% zinc oxide (ZnO), 0.001～1.5% gallium oxide (Ga
2o
3), 0.001～2.0%Al-Zr alloy, surplus is KF-AlF
3brazing flux.
Further, described welding wire band is 8:1 with the described mass ratio that mixes brazing flux.
Further, the cross section of described welding wire band is centrosymmetric, and the width of described groove is 1.6mm, and the width of described aluminium welding wire is 3.0mm, and the height of described groove is 0.76mm, and 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 the following steps:
(1) select 1XXX system～8XXX line aluminium alloy welding wire wire rod, by roll, make wire flattening become flat filament in aluminium alloy welding wire wire rod, 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 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% zinc oxide (ZnO), 0.001～1.5% gallium oxide (Ga
2o
3), 0.001～2.0%Al-Zr alloy, surplus is KF-AlF
3brazing 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, makes fluted body aluminium alloy compound welding wire.
Further, in described step (3), scrape away the mixing brazing flux that exceeds groove surface, by vertical roller, will mix brazing flux compression, compacting subsequently.
Further again, described welding wire band is 8:1 with the described mass ratio that mixes brazing flux.
The cross section of described aluminium welding wire is centrosymmetric, and the width of described groove is 1.6mm, and the width of described aluminium welding wire is 3.0mm, and the height of described groove is 0.76mm, and the thickness of described aluminium welding wire is 1.14mm.
Described binding agent be following one or both and mix above: 1. waterglass, 2. epoxy resin, 3. acrylate.
Technical conceive of the present invention is: from < < synthetic technology and the 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 ", recognize, the researcher that the U.S. releases university from sufferings develops a kind of new technology of utilizing aluminum gallium alloy to add water manufacture hydrogen recently.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), obtained unprecedented effect.Although recognize from " Baidupedia ", gallium oxide (is Ga
2o
3, the oxide of gallium only has this kind of under normal circumstances, and in this description, indication gallium oxide is Ga
2o
3) fusing point be 1740 ℃, but ratio aluminum oxide (is Al
2o
3) 2045 ℃ of fusing points 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
3during fusing (their fusion temperature is 450 ℃～560 ℃ left and right), the aluminium oxide of fusing point up to 2045 ℃ (is Al
2o
3) can react with it rapidly, melt, this can be from aluminum electrolysis technology flow process---employing ice crystal-aluminium oxide molten salt electrolysis be 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, as solute, is usingd carbon body as anode, and 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
3the gallium oxide that compound is lower with ratio aluminum oxide fusing point react easier.
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 when TIG arc-welding, arc stability, appearance of weld is attractive in appearance, pore-free, without the defect such as being mingled with, weld properties is excellent, and this there is no precedent in current welding material.But, limitation due to the shape of its fluted body aluminium alloy compound welding wire, at present can only be for TIG arc-welding, can't weld for MIG, 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 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 surpasses 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 " more high better " in 1.5～10% scopes.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, from practicality, economy, consider, 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; During 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%.
Optimized the interpolation scope of mixing 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.For 1XXX, be fine aluminium, its fusing point approaches 660 ℃ of fine aluminium fusing points, if use fusing point at the brazing flux of 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 adding (OH)
3, zinc oxide, 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.
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 have been determined, i.e. waterglass, epoxy resin, acrylate.By " reciprocation " of research mixing brazing flux and binding agent, kind, the addition of mixing brazing flux have further been 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 " a kind of fluted body aluminium alloy compound welding wire and manufacture method thereof " of the present invention, 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 effectively take into account low cost, high efficiency and high-performance.
Accompanying drawing explanation
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.
The specific embodiment
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, and tool groove in the middle of welding wire band is filled in groove and mixed 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% zinc oxide (ZnO), 0.001～1.5% gallium oxide (Ga
2o
3), 0.001～2.0%Al-Zr alloy, surplus is KF-AlF
3brazing flux.
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, from Fig. 2 size, calculates, 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.According to the mixing brazing flux formula after optimizing, coordinate 8 class aluminium alloy brazing filler metals (or welding wire) to weld and (comprise melting, soldering, lower same) test, when the mass ratio of having determined solder (or welding wire) and brazing flux is 8 ︰ 1, can meet the requirement of soldering, also can meet the specification requirement of TIG weldering (being argon tungsten-arc welding) molten solder.Through converting, finally determined 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 are all more than 100MPa.
In the present embodiment, described mixing brazing flux composition is by mass percentage: 1%CsF-AlF
3brazing flux, 35%RbF-AlF
3brazing flux, 20%Al (OH)
3, 0.001% zinc oxide, 1.5% gallium oxide, 2.0%Al-Zr alloy, surplus is KF-AlF
3brazing 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 roll, make wire flattening become flat filament in aluminium alloy welding wire wire rod, 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 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% zinc oxide ZnO, 0.001～1.5% gallium oxide Ga
2o
3, 0.001～2.0%Al-Zr alloy, surplus is KF-AlF
3brazing 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, 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 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.
In the present embodiment, adopting commercially available diameter is the 1XXX system～8XXX line aluminium alloy welding wire (or wire rod) of φ 2mm, 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).
Adopting commercially available diameter is the 1XXX system～8XXX line aluminium alloy welding wire (or wire rod) of φ 2mm, 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 a kind of " 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.During 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. during arc-welding) is little, if be the 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).Yet 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 " performance of removing oxide-film is not enough " thereby reduces the 100MPa that soldered fitting mechanical property is reduced and do not reach regulation.
Test is found, density after brazing flux of the present invention mixes (having considered " apparent density ") 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. 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.
Fluted body aluminium alloy compound welding wire manufacture process of the present invention can be accomplished by following operation.
1) by commercially available diameter, be first the aluminium alloy welding wire wire rod of φ 2mm by the roll of a pair of vertical placement, making wire flattening become thickness is the flat filament 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 manufacture the aluminium welding wire that cross section is fluted body (or claim fluted body welding) (referring to Fig. 1, Fig. 2);
3) in the described mixing brazing flux of invention, add appropriate binding agent of the present invention, stir standby.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, 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 produce fluted body arc-welding and soldering aluminium alloy compound welding wire, and be easy to produce in enormous quantities.
In the present embodiment, adopting commercially available diameter is the SAl1070(1XXX 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 alloy welding wire, get 1%CsF-AlF
3brazing flux, 35%RbF-AlF
3brazing flux, 20%Al (OH)
3, 0.001% zinc oxide, 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 binding agent, and mixing brazing flux is modulated into paste, stirs standby.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
See figures.1.and.2, in the present embodiment, described mixing brazing flux composition is by mass percentage: 90%CsF-AlF
3brazing flux, 0.01%RbF-AlF
3brazing flux, 0.001%Al (OH)
3, 0.5% zinc oxide, 0.001% gallium oxide, 0.001%Al-Zr alloy, surplus is KF-AlF
3brazing flux.
Adopting commercially available diameter is the SAl2319(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 alloy welding wire, get 90%CsF-AlF
3brazing flux, 0.01%RbF-AlF
3brazing flux, 0.001%Al (OH)
3, 0.5% zinc oxide, 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 binding agent, and mixing brazing flux is modulated into paste, stirs standby.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.
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 mass percentage: 45%CsF-AlF
3brazing flux, 18%RbF-AlF
3brazing flux, 9.5%Al (OH)
3, 0.25% zinc oxide, 0.8% gallium oxide, 0.9%Al-Zr alloy, surplus is KF-AlF
3brazing flux.
Adopting commercially available diameter is the SAl3103(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 alloy welding wire, get 45%CsF-AlF
3brazing flux, 18%RbF-AlF
3brazing flux, 9.5%Al (OH)
3, 0.25% zinc oxide, 0.8% gallium oxide, 0.9%Al-Zr alloy, surplus is KF-AlF
3the mixing brazing flux of brazing flux, adopts commercial acrylate as binding agent, and mixing brazing flux is modulated into paste, stirs standby.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.
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 mass percentage: 1%CsF-AlF
3brazing flux, 0.01%RbF-AlF
3brazing flux, 0.001%Al (OH)
3, 0.001% zinc oxide, 0.001% gallium oxide, 0.001%Al-Zr alloy, surplus is KF-AlF
3brazing flux.
Adopting commercially available diameter is the SAl4047(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 alloy welding wire, get 1%CsF-AlF
3brazing flux, 0.01%RbF-AlF
3brazing flux, 0.001%Al (OH)
3, 0.001% zinc oxide, 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 binding agent, and mixing brazing flux is modulated into paste, stirs standby.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.
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 mass percentage: 38%CsF-AlF
3brazing flux, 0.02%RbF-AlF
3brazing flux, 0.001%Al (OH)
3, 0.001% zinc oxide, 0.01% gallium oxide, 0.6%Al-Zr alloy, surplus is KF-AlF
3brazing flux.
Adopting commercially available diameter is the SAl5356(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, get 38%CsF-AlF
3brazing flux, 0.02%RbF-AlF
3brazing flux, 0.001%Al (OH)
3, 0.001% zinc oxide, 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 binding agent, mixing brazing flux to be modulated into paste, stirs standby.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.
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 mass percentage: 15%CsF-AlF
3brazing flux, 2%RbF-AlF
3brazing flux, 0.1%Al (OH)
3, 0.02% zinc oxide, 0.002% gallium oxide, 0.02%Al-Zr alloy, surplus is KF-AlF
3brazing flux.
Adopting commercially available diameter is the 6061(6XXX line aluminium alloy of φ 2mm.Continuous referring to GB/T3190-1996 < < distortion aluminium and aluminum alloy chemical composition > > table 1(), 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% zinc oxide, 0.002% gallium oxide, 0.02%Al-Zr alloy, surplus is KF-AlF
3the mixing brazing flux of brazing flux, adopts commercial acrylate as binding agent, and mixing brazing flux is modulated into paste, stirs standby.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.
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 mass percentage: 52.5%CsF-AlF
3brazing flux, 0.8%RbF-AlF
3brazing flux, 0.001%Al (OH)
3, 0.001% zinc oxide, 0.001% gallium oxide, 0.01%Al-Zr alloy, surplus is KF-AlF
3brazing flux.
Adopting commercially available diameter is the Zn78-Al22(7XXX line aluminium alloy of φ 2mm) aluminum-alloy wire material, get 52.5%CsF-AlF
3brazing flux, 0.8%RbF-AlF
3brazing flux, 0.001%Al (OH)
3, 0.001% zinc oxide, 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 binding agent, and mixing brazing flux is modulated into paste, stirs standby.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.
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 mass percentage: 45%CsF-AlF
3brazing flux, 6%RbF-AlF
3brazing flux, 0.05%Al (OH)
3, 0.05% zinc oxide, 0.02% gallium oxide, 0.05%Al-Zr alloy, surplus is KF-AlF
3brazing flux.
Adopting commercially available diameter is the 8090(8XXX line aluminium alloy of φ 2mm.Continuous referring to GB/T3190-1996 < < distortion aluminium and aluminum alloy chemical composition > > table 1(), 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% zinc oxide, 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 binding agent, and mixing brazing flux is modulated into paste, stirs standby.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.
Other schemes of the present embodiment are all identical with embodiment 1.
The test data of recommending technique > > to carry out soldering, arc-welding test according to GB/T11363-2008 < < soldered fitting Strength Testing Methods > >, GB/T22086-2008 < < aluminium and aluminium alloy arc-welding respectively embodiment 1～embodiment 8 is listed as into Fig. 3, can more clearly understand and understand technical characterstic and the technique effect of this invention.
Claims (8)
1. a fluted body aluminium alloy compound welding wire, comprises welding wire band, it is characterized in that: in the middle of the cross section of described welding wire band, have groove, fill 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-AlF
3brazing flux, 0.01～35%RbF-AlF
3brazing flux, 0.001～20%Al (OH)
3, 0.001～0.5% zinc oxide ZnO, 0.001～1.5% gallium oxide Ga
2o
3, 0.001～2.0%Al-Zr alloy, surplus is KF-AlF
3brazing flux.
2. fluted body aluminium alloy compound welding wire as claimed in claim 1, is characterized in that: described welding wire band is 8 ︰ 1 with the described mass ratio that mixes brazing flux.
3. fluted body aluminium alloy compound welding wire as claimed in claim 1, it is characterized in that: the cross section of described welding wire band is centrosymmetric, the width of described groove is 1.6mm, and the width of described aluminium welding wire is 3.0mm, the height of described groove is 0.76mm, and the thickness of described aluminium welding wire is 1.14mm.
4. a manufacture method for fluted body aluminium alloy compound welding wire as claimed in claim 1, is characterized in that: described manufacture method comprises the following steps:
(1) select 1XXX system～8XXX line aluminium alloy welding wire wire rod, by roll, make wire flattening become flat filament in aluminium alloy welding wire wire rod, 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 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% zinc oxide ZnO, 0.001～1.5% gallium oxide Ga
2o
3, 0.001～2.0%Al-Zr alloy, surplus is KF-AlF
3brazing 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, makes fluted body aluminium alloy compound welding wire.
5. the manufacture method of fluted body aluminium alloy compound welding wire as claimed in claim 4, is characterized in that: in described step (3), scrape away the mixing brazing flux that exceeds groove surface, will mix brazing flux compression, compacting subsequently by vertical roller.
6. the manufacture method of the fluted body aluminium alloy compound welding wire as described in claim 4 or 5, is characterized in that: described welding wire band is 8 ︰ 1 with the described mass ratio that mixes brazing flux.
7. the manufacture method of the fluted body aluminium alloy compound welding wire as described in claim 4 or 5, it is characterized in that: the cross section of described aluminium welding wire is centrosymmetric, the width of described groove is 1.6mm, the width of described aluminium welding wire is 3.0mm, the height of described groove is 0.76mm, and the thickness of described aluminium welding wire is 1.14mm.
8. the manufacture method of the fluted body aluminium alloy compound welding wire as described in claim 4 or 5, is characterized in that: described binding agent for following one or both and mix above: 1. waterglass, 2. epoxy resin, 3. acrylate.
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| CN201410135474.7A CN103990917B (en) | 2014-03-14 | 2014-04-04 | A kind of fluted body aluminium alloy compound welding wire and manufacture method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104551450A (en) * | 2014-12-11 | 2015-04-29 | 南京航空航天大学 | Caesium rubidium soldering flux containing gallium oxide |
| CN105537806A (en) * | 2016-03-15 | 2016-05-04 | 江西东鹏新材料有限责任公司 | Zinc tetrafluoroborate containing caesium-rubidium brazing flux |
| CN108356438A (en) * | 2017-12-30 | 2018-08-03 | 揭阳市中洲金刚石工具有限公司 | A kind of welding wire and application method with flux bath |
| CN109604860A (en) * | 2019-01-22 | 2019-04-12 | 浙江宇光铝材有限公司 | A kind of aluminium alloy welding wire containing Ga, Pr and preparation method thereof and application |
| CN110000488A (en) * | 2019-01-22 | 2019-07-12 | 南京理工大学 | A kind of aluminium alloy welding wire containing Ga and Nd |
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2014
- 2014-04-04 CN CN201410135474.7A patent/CN103990917B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551450A (en) * | 2014-12-11 | 2015-04-29 | 南京航空航天大学 | Caesium rubidium soldering flux containing gallium oxide |
| CN104551450B (en) * | 2014-12-11 | 2016-08-24 | 南京航空航天大学 | Caesium rubidium brazing flux containing gallium oxide |
| CN105537806A (en) * | 2016-03-15 | 2016-05-04 | 江西东鹏新材料有限责任公司 | Zinc tetrafluoroborate containing caesium-rubidium brazing flux |
| CN108356438A (en) * | 2017-12-30 | 2018-08-03 | 揭阳市中洲金刚石工具有限公司 | A kind of welding wire and application method with flux bath |
| 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 |
| CN109604860A (en) * | 2019-01-22 | 2019-04-12 | 浙江宇光铝材有限公司 | A kind of aluminium alloy welding wire containing Ga, Pr and preparation method thereof and application |
| CN110000488A (en) * | 2019-01-22 | 2019-07-12 | 南京理工大学 | A kind of aluminium 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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| CN103990917B (en) | 2016-05-18 |
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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 |