CN104070304B - Aluminium alloy brazing filler metal and brazing filler metal plate - Google Patents
Aluminium alloy brazing filler metal and brazing filler metal plate Download PDFInfo
- Publication number
- CN104070304B CN104070304B CN201410101287.7A CN201410101287A CN104070304B CN 104070304 B CN104070304 B CN 104070304B CN 201410101287 A CN201410101287 A CN 201410101287A CN 104070304 B CN104070304 B CN 104070304B
- Authority
- CN
- China
- Prior art keywords
- solder
- quality
- filler metal
- aluminium alloy
- brazing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
- B23K35/286—Al as the principal constituent
- B23K35/288—Al as the principal constituent with Sn or Zn
-
- 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
- B23K35/0233—Sheets, foils
- B23K35/0238—Sheets, foils layered
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
A kind of by containing Si:4.0��13.0 quality %, Sr:0.001��0.050 quality %, P:0.0001��0.0090 quality %, the solder that the aluminium alloy that surplus is made up of Al and inevitable impurity is formed and its aluminium alloy brazing filler metal plate of use. Aluminium alloy its intensity of brazing filler metal plate, solderability, excellent corrosion resistance.
Description
Technical field
The present invention relates to the aluminium alloy brazing filler metal plate of the aluminium alloy brazing filler metal for brazing and use solder.
Background technology
All the time, as the former material of the heat exchanger of automobile etc., use the brazing filler metal plate (following, to have the situation being only called " brazing filler metal plate ") that the one or both sides at core are furnished with the aluminium alloy (following, have the situation being only called " Al alloy ") of solder and form. Such as, in each components such as the pipe of the heat exchanger of the side cooler that uses at automobile, scatterer, oil cooler, condenser, heating installation core, vaporizer etc., header plate, side stand, it may also be useful to be coated with the brazing filler metal plate of the solder being made up of Al-Si system alloy at least side of core. After these brazing filler metal plates shape that forming process one-tenth specifies respectively, brazing operation engages each component.
As the technology making solderability improve, exploitation has several technology. Such as, in patent documentation 1, it is proposed to have a kind of brazing is heated before the grain shape of core realize the structure of optimization. Namely, patent documentation 1 discloses a kind of technology, it is the rolling direction mean length of crystal grain before the brazing by controlling core is heated and the ratio of the thick orientation average length of plate, the crystallization grain boundary decision of solder in plate thick direction when suppressing brazing to heat, thus suppress the grain-boundary attack of brazing material, make the technology that solderability improves.
In addition, patent documentation 2 discloses a kind of technology, wherein by the Ca in restriction solder, thus suppress the generation of fine and close oxide compound, with the raising of the wettability and extendability that realize solder. In addition, in patent documentation 2, also disclose and by adding Bi, the fusing point of solder is reduced, with the technology of the wettability and mobility that improve solder.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 10-53827 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2000-202682 publication
In order to miniaturization, the lightweight of heat exchanger, realize the such requirement of further thin-walled property for tubing, header plate material etc., it is believed that need to maintain same solderability thick in existing plate with less solder thickness. But, about the raising of the mobility of solder self, existing technology is not studied fully, can not be tackled.
Summary of the invention
The present invention is formed in view of described problem, and this problem is, it is provided that a kind of solder, and it is by making the mobility of solder self improve, thus has excellent solderability under less solder thickness. Also provide a kind of by described solder and the core with specific composition being combined in addition, the aluminium alloy brazing filler metal plate of intensity, solderability, excellent corrosion resistance.
For such problem, the present inventors, for the various elements forming solder, also comprise the composition of trace, find when more carefully studying, the such specific trace ingredients of Sr and P outside expection, contributes to the mobility of solder self to improve, thus has reached the present invention very much.
That is, the solder of the present invention, it is characterised in that, it is made up of following aluminium alloy, it contains Si:4.0��13.0 quality %, Sr:0.001��0.050 quality %, P:0.0001��0.0090 quality %, and surplus is made up of Al and inevitable impurity.
With the use of described solder, distinguish that the mobility that can make solder self improves, it is possible to obtain the effect that solderability improves further.
In addition, the aluminium alloy of described solder is formed, it is characterised in that, also containing Zn:1.5��10.0 quality %. By becoming such composition, except the mobility of solder self, additionally it is possible to make this one side side with solder also have both erosion resistance.
In addition, described solder uses as aluminium alloy brazing filler metal plate by being coated on one or both sides of core etc., it is characterized in that, and as core, it is made up of following aluminium alloy, it contains Si:0.1��1.0 quality %, Cu:0.5��1.2 quality %, Mn:0.5��2.0 quality %, also containing more than any one among Ti:0.05��0.25 quality %, Cr:0.01��0.25 quality %, Mg:0.05��0.50 quality %, surplus is made up of Al and inevitable impurity.
By becoming the aluminium alloy brazing filler metal plate of formation like this, the characteristic of solder and the characteristic of core interact, it is possible to intensity and solderability and erosion resistance are improved.
The solder of the present invention, mobility is excellent, it is possible to less solder thickness, it is achieved the raising of excellent solderability. In addition, also contain in the invention of Zn at the alloy forming solder, except the raising of the solderability of excellence, additionally it is possible to have both erosion resistance. In addition, as the core being fitted with solder, with the use of the core that the aluminium alloy with specific composition is formed, it is possible to obtain the aluminium alloy brazing filler metal plate of intensity, solderability, excellent corrosion resistance.
Embodiment
Hereinafter, the solder for implementing the present invention and the mode of aluminium alloy brazing filler metal plate is explained. First, the aluminium alloy of solder forming the present invention is described.
(solder)
The solder of the present invention is made up of following aluminium alloy, and it contains Si:4.0��13.0 quality %, Sr:0.001��0.050 quality %, P:0.0001��0.0090 quality %, and surplus is made up of Al and inevitable impurity.
Hereinafter, each constitution element of aluminium alloy for the solder forming the present invention is described.
(Si:4.0��13.0 quality %)
Si makes the solidus temperature of aluminium alloy reduce, and has the effect of the mobility under raising brazing temperature. When Si is lower than 4.0 quality %, the absolute magnitude of the solder liquid phase at brazing temperature during brazing 580��630 DEG C is not enough. Such as, when carrying out brazing with 600 DEG C, can not guaranteeing to weld fully the pin filling of the solder (, solidify portion) volume, solderability is insufficient. On the other hand, if Si is more than 13.0 quality %, then, in process of setting when the casting of solder, the thick primary crystal of Si easily occurs, and the thick Si primary crystal of size more than about 100 ��m can occur. If the thick Si crystallization when the casting of solder more than 100 ��m, then can there is the crackle taking these thick Si crystal grain as starting point when the shaping of pipe, the shaping difficulty of pipe. Therefore, the content of Si is 4.0��13.0 quality %. The preferred scope of the content of Si is 4.1��12.5 quality %.
(Sr:0.001��0.050 quality %, P:0.0001��0.0090 quality %)
In the present invention, by making Sr and P of trace coexist, it is seen that have the effect that mobility when making solder melting improves. Although its mechanism is also clear and definite, but currently think due to, have some Sr and P to coexist a little, there is the effect that the surface tension of melting Al is reduced further. Namely think due to, coexisted by Sr and P, it is possible to mobility-thickness product when Al-Si liquid phase when solder melting is started, Al solid phase, Si solid phase coexist and flow reduces.
If Sr is lower than 0.001 quality %, then can not fully obtain the mobility raising effect that above-mentioned effect is brought. On the other hand, if Sr is more than 0.050 quality %, then the viscosity of the liquid phase of Al-Si brazing filler metal self increases, and therefore solderability reduces. Therefore, the content of Sr is 0.001��0.050 quality %. The preferred scope of the content of Sr is 0.002��0.040 quality %.
In addition, if P is lower than 0.0001 quality %, then can not fully obtain the mobility raising effect that above-mentioned effect is brought. On the other hand, if P is more than 0.0090 quality %, then generates Al-P compound, when therefore manufacturing braze-clad material by hot rolling, the Edge crack of more than 100mm can occur in side, therefore can not effectively manufacture braze-clad material. Therefore, the content of P is 0.0001��0.0090 quality %. The preferred scope of the content of P is 0.0001��0.0070 quality %.
(surplus: Al and inevitable impurity)
The solder of the present invention is that the aluminium alloy that Al and inevitable impurity are formed is formed by surplus. As inevitable impurity, it is believed that have Fe, Cu, Mn etc. Inevitable impurity if the content of this kind of degree that can not the effect of the present invention be had an impact, then allows to contain. Such as, if Fe is then preferably at below 0.3 quality %, if Cu is then preferably at below 0.3 quality %, if Mn is then preferably at below 0.3 quality %. But, the total of the content of inevitable impurity preferably controls be no more than 0.6 quality %.
(Zn:1.5��10.0 quality %)
When the erosion resistance of the aluminium alloy of the solder of formation the present invention is improved, it is also preferred that containing Zn:1.5��10.0 quality %. By adding Zn, make the current potential of solder side low in electrochemistry, it is possible to erosion resistance is improved. When Zn is lower than 1.5 quality %, the effect of low potential is little, and it is little that erosion resistance improves effect. On the other hand, if Zn is more than 10.0 quality %, then the solidus temperature of Al-Si-Zn solder becomes too low, is therefore not suitable as solder. Therefore, making Zn contain sometimes, the content of Zn is 1.5��10.0 quality %. The preferred scope of the content of Zn is 1.8��9.5 quality %.
The aluminium alloy brazing filler metal plate of the present invention, it is possible to manufacture in the following way: use coated etc. method, layer that make to have above-mentioned specific composition, that the solder of mobility excellence is formed is engaged in the one or both sides of core described later.
Next, just core for the aluminium alloy brazing filler metal plate of the present invention is described.
(core)
In the present invention, with the use of by the solder there is the above-mentioned specific aluminium alloy formed forming, and use by there is core that the aluminium alloy specifically formed forms as the core fitted with solder, it is possible to obtain the aluminium alloy brazing filler metal plate of intensity, solderability, excellent corrosion resistance.
Hereinafter, each constitution element of aluminium alloy for the core forming the present invention is described.
(Si:0.1��1.0 quality %)
The effect that Si has solid solution and tensile strength is improved, it is possible to the alloy strength after brazing is improved. During lower than 0.1 quality %, above-mentioned effect is insufficient, and on the other hand, if more than 1.0 quality %, then the solidus temperature of core reduces, the therefore core likely melting when brazing. Therefore, the content of Si is 0.1��1.0 quality %. The preferred scope of the content of Si is 0.12��0.98 quality %. (Cu:0.5��1.2 quality %)
Cu and Si is same, the effect having solid solution and tensile strength is improved, it is possible to the alloy strength after brazing is improved. During lower than 0.5 quality %, insufficient from the solution strengthening of Cu, the raising effect of tensile strength is insufficient. On the other hand, if more than 1.2 quality %, then after brazing heating, the amount of Al-Cu system precipitate increases, and erosion resistance reduces. Therefore, the content of Cu is 0.5��1.2 quality %. The preferred scope of the content of Cu is 0.52��1.15 quality %.
(Mn:0.5��2.0 quality %)
Owing to Mn forms the dispersed particle with Si, therefore dispersion is reinforced, and has the effect that the tensile strength of the aluminium alloy after making brazing improves. During lower than 0.5 quality %, the raising effect of the dispersion-strengthened tensile strength brought is insufficient. On the other hand, if more than 2.0 quality %, then easily forming the intermetallic compound of thick Al-Mn system when casting, processibility reduces, and therefore crackle easily occurs when pipe is shaped. Therefore, the content of Mn is 0.5��2.0 quality %. The preferred scope of the content of Mn is 0.52��1.90 quality %.
(Ti:0.05��0.25 quality %)
Ti forms Ti-Al based compound in Al alloy and stratiform is disperseed. Due to Ti layered distribution, causing the distribution of the current potential of material also to become the deep or light corresponding distribution with Ti, therefore, it is possible to make etch state laminarization, the corrosion in the thick direction of plate carries out decrease in velocity, has the effect that the erosion resistance after making brazing improves. During lower than 0.05 quality %, the degree of the layered distribution of Ti is insufficient, and erosion resistance is insufficient. On the other hand, if more than 0.25 quality %, then easily forming thick Al3Ti series intermetallic compound during casting, processibility reduces, and therefore crackle easily occurs when pipe is shaped. Therefore, the content of Ti is 0.05��0.25 quality %. The preferred scope of the content of Ti is 0.06��0.24 quality %.
(Cr:0.01��0.25 quality %)
By adding Cr, cause the fine precipitated phase of Al3Cr dispersed particle to distribute, thus there is the effect that the tensile strength after making brazing improves. During lower than 0.01 quality %, above-mentioned effect is insufficient. On the other hand, if more than 0.25 quality %, then easily thick when casting Al3Cr intermetallic compound, processibility reduces, and therefore crackle easily occurs when pipe is shaped. Therefore, the content of Cr is 0.01��0.25 quality %. The preferred scope of the content of Cr is 0.02��0.20 quality %.
(Mg:0.05��0.50 quality %)
When Mg and Si coexists, form the precipitated phase of Mg2Si etc., the tensile strength of the aluminium alloy after brazing is improved. Little lower than this effect during 0.05 quality %. On the other hand, if more than 0.50 quality %, then during brazing, solder flux and Mg easily form the compound of MgF2 etc., and solder flux effect is insufficient, solderability much slower. Therefore, the content of Mg is 0.05��0.50 quality %. The preferred scope of the content of Mg is 0.06��0.48 quality %.
Need among containing above-mentioned Ti:0.05��0.25 quality %, Cr:0.01��0.25 quality %, Mg:0.05��0.50 quality % any one more than. As the element of the aluminium alloy forming core, compared with Si, Cu, Mn, its necessity of Ti, Cr, Mg is slightly low, but according to above-mentioned feature, effect, purposes, it is possible to make it suitablely containing specified amount.
(surplus: Al and inevitable impurity)
The core of the present invention is that the aluminium alloy that Al and inevitable impurity are formed is formed by surplus. As inevitable impurity, it is believed that have Fe, Sn, Ni, Zr, C etc. Inevitable impurity if not to the content of the degree that the effect of the present invention impacts, then allows to contain. Such as, if Fe, then below 0.3 quality % it is preferably. In addition, the total of the content of inevitable impurity, it is preferable that controlled in the way of being no more than 0.6 quality %.
(thickness of solder)
In the brazing filler metal plate of the present invention, it is preferable that the solder thickness of every one side is 10��100 ��m. When the thickness of solder is lower than 10 ��m, the absolute magnitude of solder is not enough, and solderability likely reduces. On the other hand, if the thickness of solder is more than 100 ��m, then the amount of flow of solder is superfluous, and a part corrodes core, it is possible to the corrode (�� �� �� �� Application) of core occurs. Preferred solder thickness is 10��50 ��m. Further, if when two sides all possesses the aluminium alloy brazing filler metal plate of solder, the solder in each face can be mutually congruent aluminium alloy, it is also possible to be different.
(sacrificial anode material)
In the brazing filler metal plate of the present invention, it is also possible to possess described solder on the face of the side of described core, coated sacrificial anode material on another side, makes the erosion resistance from another side side improve. For the tubing of heat exchanger, during the collection such purposes of tubing, for the object that the erosion resistance realizing cooling water side or exterior side improves, it is possible to make brazing junction structure to possess the brazing filler metal plate of such sacrificial anode material. In this case, formation of parts in the way of making the face possessing sacrificial anode material become corrosive environment side.
Such as, as sacrificial anode material, it is also possible to the anticorrosion material of sacrifice of the Al-Zn system of coated 7072 grades, Al-Zn-Mg system, Al-Si-Mn-Zn system alloy.
(brazing filler metal plate)
The aluminium alloy brazing filler metal plate of the present invention, by the manufacture method manufacture of known coated material. Its example is below described.
First, by continuous casting fusing, casting core aluminium alloy, sacrificial anode layer aluminium alloy, solder layer aluminium alloy, then as required again by continuous casting fusing, casting sacrificial anode layer side solder layer aluminium alloy, and carry out building up by welding, homogeneous heat-transmission process as required, obtain core ingot casting, sacrificial anode layer ingot casting, solder layer ingot casting and sacrificial anode layer side solder layer ingot casting. Sacrificial anode layer ingot casting, solder layer ingot casting and sacrificial anode layer side solder layer ingot casting, become specific thickness respectively by hot rolling or cut-out, obtain sacrificial anode material, solder and sacrificial anode layer side solder.
Then, clamp core ingot casting with solder and sacrificial anode material, more as required sacrificial anode layer side solder is configured in the outside of sacrificial anode material, make it to overlap, after the heating temperatures of more than 400 DEG C, crimped by hot rolling, become sheet material. Thereafter, thick by cold rolling, process annealing, the cold rolling plate reaching regulation.
The solder of the present invention and employ its brazing filler metal plate, such as, it is possible to each purposes of the pipe of the heat exchanger of the side cooler that extensively uses for automobile, scatterer, oil cooler, condenser, heating installation core, vaporizer etc., header plate, side stand etc.
In order to use in such purposes, it is generally required to use the brazing filler metal plate with solder, it is processed into brazing junction structure.
As the manufacture method of brazing junction structure, its example is below described. Such as, if being equipped on the heat exchanger of the condenser etc. of automobile, then generally use the brazing filler metal plate of the present invention, by the pipe forming the partially flat tubulose of fluid passage and the fin alternately overlapping combinations repeatedly having carried out corrugation for sheet material, in the way of making fluid passage assembly, pipe is fitted together to having carried out, for sheet material, the collection tube sheet (collection pipe) that punching press is shaped, becomes the tectosome of assembling.
When these parts are assembled, heated by brazing, pipe is engaged with collection tube sheet respectively with fin, pipe, manufactures heat exchanger. The connecting portion that the solder (fusion welding) of the melting due to brazing heating is filled between part and form solder pot (weldering pin), form structure part be engaged with each other.
At least in any one of these pipes, collection tube sheet and fin, can be suitable for the brazing filler metal plate being coated with solder in the face of at least side of the core being made up of the aluminium alloy of the present invention.
Embodiment
Next, illustrate in greater detail the present invention based on embodiment.
< tests the making > of material No.1��95
By general method, make the solder (test material No.1��29, solder flag F 1��F29) with the chemical composition shown in table 1. Casting has the ingot casting of the core (test material No.30��48, core mark C1��C19) of the chemical composition shown in table 2, and after implementing homogeneousization process, building up by welding becomes the plate of regulation thick and makes core. The core and the solder that make for these carry out various combination, make it to overlap, after crimping rolling being carried out for solder/core two layers of coated material by hot rolling, carry out cold rolling, process annealing, finish to gauge, the brazing filler metal plate being made into the thick coated material of the plate as 0.25mmt is for examination material (test material No.49��95, coated material mark B1��B47)). As the thickness of solder, make 30 ��m, 10 ��m two kinds.
Then, for each brazing filler metal plate obtained for examination material, with regard to erosion resistance, other the performance of the intensity after mobility-thickness product, solderability, brazing, solder side, the method below shown is evaluated, and its result is displayed in table 3 and table 4. Further, in chemical composition one hurdle of table 1 and table 2, the numeric representation of underscore departs from the numerical range of the 1st invention��the 3rd invention defined. Describe in addition for "-" a hurdle, represent that composition is the content of inevitable impurity level. In chemical composition one hurdle of table 1 and table 2, surplus is Al and inevitable impurity.
In addition, intensity after the mobility-thickness product of evaluation result of table 4, solderability, brazing, a hurdle of the erosion resistance of solder side describe for "-" a hurdle, represent the manufacture difficulty as coated material, therefore can not measure. In addition, describe in other hurdles of table 3 and the evaluation result of table 4 for "-" a hurdle, represent in the performance of the plasticity etc. beyond the erosion resistance of the intensity after mobility-thickness product, solderability, brazing, solder side, it does not have special problem.
(mobility-thickness product)
Test method carries out according to " aluminium soldering handbook (revised edition) " light metal welding structure association of Corporation, the shatter test method that p131, Fig. 4 .11 describes. Expect for 50mm width �� 100mmL �� 0.25mmt for having a try. Evaluation method is weighting method. Under nitrogen atmosphere, keep 5 minutes at 600 DEG C, carry out common brazing.
Mobility-thickness product K3, with K3=(4WB-WO)/(3WO �� cladding ratio of filler metals) calculating. At this, WO: the quality of the brazing filler metal plate before brazing, WB: the quality of the brazing filler metal plate bottom 1/4 after brazing, cladding ratio of filler metals: relative to the ratio of the solder thickness of brazing filler metal plate total thickness.
As the metewand of mobility-thickness product K3, it is ��, K3 during more than K3:0.5: lower than being zero, K3 when 0.5, more than 0.35: lower than when 0.35 being ��.
(solderability)
Test method is according to " aluminium soldering handbook (revised edition) " light metal welding structure association of Corporation, and the gap-fill test method(s) described in p133, Fig. 4 .13 (1), (2), (3) carries out. For having a try, material is, lower plate: 25mmW �� 60mmL �� 0.25mmt, upper plate: 25mmW �� 55mmL �� 1.0mmt. As lower plate, take upper surface as the test material that the mode of solder side places embodiment, comparative example. The O state material of aluminium 3003 alloy of 1mmt is used as upper plate. Pad uses 2 �� SUS. Solder flux 5g/m2 it is coated with in the side, solder face of lower plate. Under nitrogen atmosphere, keep 5 minutes with 600 DEG C, carry out common brazing.
As the evaluation of solderability, measurement clearance fills length FL. As the metewand of gap-fill length FL, it is ��, FL during more than FL:30mm: lower than being zero, FL when 30mm and more than 25mm: lower than during 25mm be ��.
(after brazing intensity)
Brazing heating means: each test material using 200mmL �� 150mmW �� 0.25mmt size, carries out shatter test with following brazing condition, after brazing is heated, after at room temperature keeping 1 week, carry out tension test. Under nitrogen atmosphere, keep 5 minutes with 600 DEG C, carry out common brazing. JIS5 test film is used as evaluation test film.
As the metewand of intensity, tensile strength is �� �� when more than 180MPa, lower than 180MPa, when more than 160MPa is ��, lower than 160MPa, when more than 150MPa is zero, lower than during 150MPa being ��.
(solder side erosion resistance)
Brazing heating means: each test material using 200mmL �� 150mmW �� 0.25mmt size, shatter test is carried out by following brazing condition, after brazing is heated, after at room temperature keeping 1 week, for under the nitrogen atmosphere of solder side erosion resistance evaluation test, keep 5 minutes with 600 DEG C, carry out common brazing. As solder side erosion resistance evaluation test method, taking solder side as test face, sealing and the face of solder opposite side, according to SWAATASTMG85-A3, carry out 340h test. Follow ordinary method and remove test post-etching resultant, evaluate depth of corrosion by depth of focus method.
As the metewand of solder side erosion resistance, depth of corrosion: be �� when less than 30 ��m, depth of corrosion more than 30 ��m, lower than when being more than zero, 70 ��m when 70 ��m being ��.
[table 1]
[table 2]
As shown in table 1, meet the solder of the regulation of the 1st invention of the present invention, test material No.1��16 with solder flag F 1��F16() represent. Meet the solder of the regulation of the 2nd invention of the present invention, test material No.17��22 with solder flag F 17��F22() represent. Do not meet the solder of the regulation of the 1st invention of the present invention, test material No.23��28 with solder flag F 23��F28() represent. Do not meet the solder of the regulation of the 2nd invention of the present invention, test material No.29 with solder flag F 29() represent.
As shown in table 2, meet the core of the regulation of the 3rd invention of the present invention, mark C1��C13(with core and test material No.30��42) represent. Do not meet the core of the regulation of the 3rd invention of the present invention, mark C14��C19(with core and test material No.43��48) represent.
As shown in table 3, test material No.49��82(brazing filler metal plate B1��B34 of the brazing filler metal plate that the solder meeting the 1st invention of the present invention or the regulation of the 2nd invention and the combination meeting the core of the regulation of the 3rd invention are formed), in intensity after mobility-thickness product, solderability, brazing, the erosion resistance of solder side, other performance, all there is excellent performance.
The brazing filler metal plate B35��B41 of test material No.83��89 of table 4, employ solder and do not meet the 1st invention of the present invention or the solder of the regulation of the 2nd invention, intensity after mobility-thickness product, solderability, brazing, the erosion resistance of solder side, other performance any one more than poor performance.
The brazing filler metal plate B42��B47 of the test material 90��95 of table 4, it may also be useful to core do not meet the intensity after the core of the regulation of the 3rd invention of the present invention, mobility-thickness product, solderability, brazing, solder side erosion resistance, other performance any one more than poor performance.
Particularly testing material No.86,89,91, the Edge crack of solder is big, or the solidus temperature of solder and core reduces, the manufacture difficulty of coated material. In addition, test material No.88, during the casting of solder, thick Si crystallization more than 100 ��m generates, and occurs by the crackle of starting point of these thick Si crystal grain when the shaping of pipe, and the shaping of pipe is difficult. The thick compound of test material No.95, Al-Mn becomes the starting point of crackle, and crackle occurs when the shaping of pipe, and be shaped difficulty.
Above, for the present invention preferred embodiment it is illustrated, but the present invention does not limit by described enforcement mode, it is also possible to can significantly change in the scope of objective according to the invention, change and implement, in these scopes being all included in the technology of the present invention.
The application is based on the interests of the Japan's patent application 2013-70652 CLAIM OF PRIORITY applied on March 28th, 2013. Whole contents of above-mentioned specification sheets, quote for reference in this application.
Claims (2)
1. a solder, it is characterized in that, be made up of following alloy, it contains Si:4.0��13.0 quality %, Sr:0.001��0.050 quality %, P:0.0001��0.0090 quality %, also containing Zn:1.5��8.3 quality %, surplus is made up of Al and inevitable impurity.
2. an aluminium alloy brazing filler metal plate, it is characterized in that, it it is the aluminium alloy brazing filler metal plate on the one or both sides of core with solder according to claim 1, wherein, core is made up of following aluminium alloy, containing Si:0.1��1.0 quality %, Cu:0.5��1.2 quality %, Mn:0.5��2.0 quality %, also containing more than any one among Ti:0.05��0.25 quality %, Cr:0.01��0.25 quality %, Mg:0.05��0.50 quality %, surplus is made up of Al and inevitable impurity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013070652A JP5973948B2 (en) | 2013-03-28 | 2013-03-28 | Aluminum alloy brazing material and brazing sheet |
| JP2013-070652 | 2013-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104070304A CN104070304A (en) | 2014-10-01 |
| CN104070304B true CN104070304B (en) | 2016-06-01 |
Family
ID=51592127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410101287.7A Expired - Fee Related CN104070304B (en) | 2013-03-28 | 2014-03-18 | Aluminium alloy brazing filler metal and brazing filler metal plate |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5973948B2 (en) |
| CN (1) | CN104070304B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624437B (en) * | 2016-11-30 | 2018-10-30 | 安徽华众焊业有限公司 | Anticorrosion aluminium solder |
| CN111505043B (en) * | 2020-06-08 | 2023-07-28 | 西南铝业（集团）有限责任公司 | Brazing performance evaluation method and experimental support frame for brazing aluminum alloy |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4785092A (en) * | 1984-05-25 | 1988-11-15 | Sumitomo Light Metal Industrial, Ltd. | Aluminum brazing material for use in aluminum heat exchanger |
| CN101097124A (en) * | 2006-06-30 | 2008-01-02 | 住友轻金属工业株式会社 | Brazing fin material for heat exchangers, heat exchanger, and method of manufacturing same |
| CN101871062A (en) * | 2009-04-21 | 2010-10-27 | 株式会社电装 | Aluminum alloy clad sheet for heat exchangers |
| JP2011230173A (en) * | 2010-04-29 | 2011-11-17 | Mitsubishi Alum Co Ltd | Aluminum alloy brazing filler metal |
| CN102251154A (en) * | 2010-05-18 | 2011-11-23 | 株式会社神户制钢所 | Aluminum alloy brazing sheet |
| CN102251155A (en) * | 2010-05-18 | 2011-11-23 | 株式会社神户制钢所 | Aluminum alloy brazing sheet |
| CN102513722A (en) * | 2012-01-10 | 2012-06-27 | 南京航空航天大学 | Medium temperature Zn-Al solder containing Sr, Si, Ti, Ni and P and having high air tightness |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6068188A (en) * | 1983-09-21 | 1985-04-18 | Hitachi Ltd | Brazing material for al and brazing method |
| JPH01294840A (en) * | 1988-05-23 | 1989-11-28 | Nissan Motor Co Ltd | Wear-resistant aluminum alloy |
| JP2000054047A (en) * | 1998-07-30 | 2000-02-22 | Nippon Light Metal Co Ltd | HYPO-EUTECTIC ALUMINUM-SILICON ALLOY IN WHICH PRIMARY CRYSTAL Si IS CRYSTALLIZED OUT AND PRODUCTION THEREOF |
| JP3876180B2 (en) * | 2002-04-04 | 2007-01-31 | 住友軽金属工業株式会社 | Aluminum alloy three-layer clad material |
| JP4220410B2 (en) * | 2004-02-18 | 2009-02-04 | 住友軽金属工業株式会社 | Aluminum alloy clad material for heat exchanger |
-
2013
- 2013-03-28 JP JP2013070652A patent/JP5973948B2/en not_active Expired - Fee Related
-
2014
- 2014-03-18 CN CN201410101287.7A patent/CN104070304B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4785092A (en) * | 1984-05-25 | 1988-11-15 | Sumitomo Light Metal Industrial, Ltd. | Aluminum brazing material for use in aluminum heat exchanger |
| CN101097124A (en) * | 2006-06-30 | 2008-01-02 | 住友轻金属工业株式会社 | Brazing fin material for heat exchangers, heat exchanger, and method of manufacturing same |
| CN101871062A (en) * | 2009-04-21 | 2010-10-27 | 株式会社电装 | Aluminum alloy clad sheet for heat exchangers |
| JP2011230173A (en) * | 2010-04-29 | 2011-11-17 | Mitsubishi Alum Co Ltd | Aluminum alloy brazing filler metal |
| CN102251154A (en) * | 2010-05-18 | 2011-11-23 | 株式会社神户制钢所 | Aluminum alloy brazing sheet |
| CN102251155A (en) * | 2010-05-18 | 2011-11-23 | 株式会社神户制钢所 | Aluminum alloy brazing sheet |
| CN102513722A (en) * | 2012-01-10 | 2012-06-27 | 南京航空航天大学 | Medium temperature Zn-Al solder containing Sr, Si, Ti, Ni and P and having high air tightness |
Non-Patent Citations (1)
| Title |
|---|
| "客车铝窗框专用焊料研究";李建忠 等;《客车技术与研究》;20030201;第25卷(第2期);正文第27页左栏第2段,表3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5973948B2 (en) | 2016-08-23 |
| JP2014194051A (en) | 2014-10-09 |
| CN104070304A (en) | 2014-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102205676B (en) | Aluminum alloy brazing sheet and heat exchanger | |
| CN101578382B (en) | Aluminum alloy brazing sheet for heat exchanger | |
| JP5057439B2 (en) | Aluminum alloy clad material for high strength, high melting point heat exchanger excellent in durability, its manufacturing method, and aluminum alloy heat exchanger | |
| MXPA06005902A (en) | Method for welding strips of aluminium alloy. | |
| WO2010137649A1 (en) | Aluminum alloy brazing sheet for heat exchangers and aluminum alloy brazed object for heat exchangers | |
| JP4832354B2 (en) | Aluminum alloy clad material for high strength, high melting point heat exchanger excellent in durability, its manufacturing method, and aluminum alloy heat exchanger | |
| MXPA06005900A (en) | Aluminium alloy strip for welding. | |
| CN107406922A (en) | Aluminum alloy brazing sheet | |
| JP4448758B2 (en) | Aluminum alloy clad material for heat exchangers with excellent brazing, corrosion resistance and hot rolling properties | |
| CN105074026B (en) | Solder brazing bonded structure | |
| CN108699637A (en) | Aluminium alloy brazing piece and its manufacturing method and the manufacturing method for using the automobile heat exchanger for working as the soldering lug | |
| CN107848079B (en) | Aluminum alloy brazing sheet, method for producing same, and heat exchanger | |
| JP5279277B2 (en) | Brazing sheet for tube material of heat exchanger, heat exchanger and manufacturing method thereof | |
| CN107002184B (en) | Aluminum alloy clad material for heat exchanger | |
| JP2009161827A (en) | Brazing sheet for tube material of heat exchanger, and method for producing heat exchanger using the same | |
| CN106103761B (en) | Electric seam welding aluminium alloy brazing sheet | |
| CN104070304B (en) | Aluminium alloy brazing filler metal and brazing filler metal plate | |
| CN107849645A (en) | Aluminum alloy clad sheet and its manufacture method and the heat exchanger using the aluminum alloy clad sheet | |
| JP5498213B2 (en) | Aluminum alloy clad material for high-strength heat exchangers with excellent brazeability | |
| JP5632175B2 (en) | Aluminum alloy clad material and heat exchanger for high-strength heat exchangers with excellent brazing properties | |
| JP5354911B2 (en) | Aluminum heat exchanger and manufacturing method thereof | |
| JP5354912B2 (en) | Aluminum heat exchanger and manufacturing method thereof | |
| CN106906383A (en) | The aluminum alloy brazing sheet of the excellent strength after soldering | |
| JP5279279B2 (en) | Blazing sheet for fin material of heat exchanger, heat exchanger and manufacturing method thereof | |
| JP2023045751A (en) | Brazing sheet and manufacturing method of the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20210318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |