CN106476359A - The multilayer of ladder silicone content is nothing the material and its preparation method and application of brazing flux - Google Patents
The multilayer of ladder silicone content is nothing the material and its preparation method and application of brazing flux Download PDFInfo
- Publication number
- CN106476359A CN106476359A CN201610844488.5A CN201610844488A CN106476359A CN 106476359 A CN106476359 A CN 106476359A CN 201610844488 A CN201610844488 A CN 201610844488A CN 106476359 A CN106476359 A CN 106476359A
- Authority
- CN
- China
- Prior art keywords
- layer
- brazing
- nothing
- multilayer
- cover layer
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/012—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Laminated Bodies (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
The invention discloses a kind of material and its preparation method and application of multilayer of ladder silicone content nothing brazing flux, the multilayer of described ladder silicone content is nothing the material of brazing flux, including the sandwich layer, brazing layer and the cover layer that are combined successively, brazing layer is different with the silicon mass content of cover layer.Cover layer of the present invention and brazing layer all contain silicon material, using the brazing layer concentration difference different with cover layer silicone content, so that soldering acid is flowed to low concentration direction from high concentration, effectively break through oxide-film.While the high Mg of concentration is also flowed with silicon material, it is diffused near oxide-film, the magnesium for diffusing out is in oxygen content than in the case of relatively low, magnesium occurs to generate point crystalline substance first with Process on Aluminum Alloy Oxidation Film, the point crystalline substance of generation is easily brazed liquid (silicon material) and is rolled onto liquid internal, it is fully contacted the soldering acid of welding, along with capillary, the effect such as profit is invaded, make soldered fitting welding quality reach saturation.Bi element is added in cover layer or brazing layer, be beneficial to which and take the lead in breaking through oxide-film.
Description
Technical field
The present invention relates to Heat transmission multilayer aluminium alloy is nothing brazing flux material and its manufacturing process.
Background technology
At present, Heat transmission industry development requires to manufacture high-quality material and part with alap ultimate cost, heat
The atmosphere in nitrogen and containing oxygen impurities as a small amount of as possible is most commonly used that in exchanger soldering production.This process is claimed
For controlled atmosphere soldering (" CAB "), also include Al-K-F base solder flux, the Nocolok solder flux that for example applies, by adding soldering flux
Decompose, dissolving goes oxide film dissolving to form the purpose that wetting, melting reach soldering.
But, the film of flux residue after soldering, it is typically considered harmful to heat exchanger, because they may divide
The aluminium surface of soldering or the inner passage of blocking is dispersed in, is effectively exchanged with heat exchanger heat so as to hinder.Fluoride flux
After soldering, residue tightly depends on the surface of aluminium parts, not readily dissolves, for some labyrinths, such as honeycomb, heat
Complexity or slype in exchanger, is only capable of mechanically wiping, and is easily detained a large amount of residues, it is difficult to clear up completely.And
And in having the brazing process of soldering flux, a large amount of toxic gases are generated, seriously damage operator's health and safety.In addition,
The brazing flux of tube interior in brazing process, is remained in, the corrosion rate of material is accelerated, cause heat exchanger to be bored a hole, reduce
Heat exchanger service life.
In 20 century 70s, vacuum or inert gas shielding soldering processes are occurred as soon as.The expansion of magnesium of this kind of technology utilization
Scattered phenomenon and be easy to the oxide-film on its surface is volatilized and is pierced through from almag, make the characteristic of solder metal flow.This kind
The necessity that technique eliminates chloride, residue is removed after fluoride soldering, reduce soldering and to corrosion of aluminium alloy and
Hinder the impact of radiator heat conduction.But strict due to requiring to brazing process vacuum and oxygen content, once sent out for some time
Exhibition is relatively slow, and recent years is due to adding intermediate layer or cover layer, and brazing layer adds Bi, Mg element, to vacuum and
Oxygen content requires to decrease, and in recent years, solder without soldering acid technology grows up again, is expected by client deeply.But these are nothing pricker
Agent soldering tech respectively has shortcoming, still needs to constantly improve raising,
WO 2010052231A1 and CN 103347643A each provide a kind of nothing brazing flux material structure, and both is nothing pricker
Agent material patent be all brazing layer in outermost, brazing layer contains Bi, Mg element, and bismuth element fusing point is relatively low, and 272 DEG C are just changed into liquid
State, forms channel permeability to alloy surface in brazing layer, also readily volatilized in soldering and heating process magnesium elements, along bismuth etc.
Melting element forms passage and is easier to volatilize, and evaporate into outside brazing layer and is combined with oxygen, so that material surface is blacked, when soldering atmosphere
When oxygen content is higher, brazing layer is higher containing magnesium and long-time spreads, and forms a large amount of magnesia, also hinders soldered fitting fusion.
Further, since brazing layer magnesium elements evaporate into top layer, internal magnesium content declines, and content of magnesium accurately can not control, and magnesium can increase
Strong matrix strength, as magnesium is evaporate into outside brazing layer, the strength of materials also becomes unstable.Additionally, due to containing the eutectic such as Bi, Sn
Point element, in heating process, these elements are also spread to sandwich layer, invading under profit effect in these elements, and forming passage causes
, also to sandwich layer diffusion transfer, silicone content gradually increases in sandwich layer outer rim for substantial amounts of silicon, magnesium, and it is alloy gradually gradual change that sandwich layer has other
For alusil alloy, sandwich layer outer rim fusing point is caused to reduce, it is easy to which the phenomenon for occurring brazing process center core layer to be etched, sandwich layer are thinning
Cause the strength of materials to reduce, corrosion resistance declines, affect product performance.
Sa handkerchief patent WO 2013180630A1, increased between brazing layer and sandwich layer one layer of magnesium content higher in
Interbed (Mg content be 0.5-2.5), now intermediate layer have two effects, one is to stop that brazing layer Bi, Si, to sandwich layer diffusion, rise
One cushioning effect, is not result in that sandwich layer is come in due to the diffusion of a large amount of silicon, causes fusing point to reduce, thus does not occur welding
Reppear the phenomenon of existing erosion sandwich layer, two is that intermediate layer magnesium elements are spread to brazing layer and to sandwich layer, and magnesium is diffused into sandwich layer, can increase
The intensity of sandwich layer, while can also improve its corrosion resistance.Magnesium is spread to brazing layer, and bismuth plays a part of wetting and spreading together, more
Carry out beneficial to soldering, but as magnesium elements are unable to effective control to brazing layer diffusion rate and total amount, a large amount of magnesium are diffused into soldering
Layer is outer, is combined with oxygen in air, so that brazing layer is blacked, when content of magnesium or heating-up temperature is increased, all can be in soldering layer surface shape
Become a large amount of magnesia, superficial oxidation magnesium causes joint weld together, the exterior appearance of product is not only affected, has an effect on pricker
The welding quality of plumb joint.
Above patent is all to add the low melting point element such as Bi, Pb, Sb, Sn in brazing layer, and promotes these low melting point units
The alloying element of plain solid solubility such as Zn, Li, Ti etc., add these low-melting compounds and form low melting point community in brazing layer,
These low melting point community Main Functions are to destroy oxide-film, and as these elements are relatively low in aluminum alloy solution degree, alloy is solidifying
Gu during form low melting point congruent melting crystal or particle.In heating process, these metallic elements pass through " Solution reprecipitation " machine
Reason, from brazing layer to cover layer or oxide-film diffusion into the surface, is finally diffused in surface portion region and precipitates that to form certain proportion low
Melting alloy point.These eutectic, in brazing process, in oxide-film between soldering matrix melt-flow state, slacken
Both attaching structures, destroy integrality and the compactness of oxide-film, promote to be brazed material and the fresh substrate contact of cored solder,
Reach the purpose of welding.
But after the low melting point elements such as Bi, Pb, Sb, the Sn in solder mutually first melt, break outer surface of the oxide-film in solder
Separate out, while spread for Mg providing passage；When solder is completely melt, then the low melting points such as Bi, Pb, Sb, the Sn for first melting unit
Element mutually pushes outermost layer to, i.e., the low melting point element such as Bi, Pb, Sb, Sn for first melting defines one around solder and " encloses
Weir ", the formation in this " cofferdam ", sprawling for solder is hindered, increases the resistance of solder flowing, hence in so that the sprawling of solder
Hydraulic performance decline.Experiment shows that addition is bigger, and spreading property reduction is bigger, and above patent all cannot be avoided the product of " cofferdam " phenomenon
Raw, while being unable to the adverse effect that the diffusion of effective control magnesium brings.
In addition patent EP 1306207B1 and US2014/0315024A1, cover layer is all fine aluminium base or aluminium manganese base, due to
, at 570-590 DEG C, at 650 DEG C, solid liquid phase temperature difference is big, although have silicon for cover layer fine aluminium for brazing layer aluminium silicon solid-liquid phase line temperature
Material concentration difference, silicon material can only bit by bit corrode fine aluminium, as fine aluminium is in outermost layer, capillary, sprawl etc. active force can not make solid
The fine aluminium of state produces flowing, that is, as outermost layer fine aluminium stops brazing layer silicon material insufficient flow, aluminum layer is completely dissolved to be needed
Want certain time, the magnesium elements partly spread during this and oxidation film reaction, when being completely dissolved fine aluminium etc. silicon material, do not have
Time enough and power are rolled onto oxide-film in soldering acid, if lengthening the holding time, while silicon material corrodes cover layer,
Sandwich layer can be corroded, and time longer outermost layer oxidation is also more, i.e., oxide-film is thicker, very unfavorable to welding.
At present, industry encounters problems most, and solder without soldering acid interior welds quality is intact, and outside weldings are not full,
Main cause is：At 600 DEG C, in vacuum, the saturated vapour pressure of magnesium alloy volatilization is 0.43g/m3, 89.58ppm can be consumed
Oxygen, by taking oil cooler soldering as an example, oil cooler soldering interior welds quality is intact, and outside weldings are not but full.This is because oily
Cooler inner space is limited, and oxygen relative amount is very low, can consume oxygen in brazing process completely.And oil cooler space outerpace
Greatly, it is infinite height that oxygen content is relative, there occurs magnesium oxidation reaction, Mg+1/2O2=MgO, mainly generates magnesia.Magnesium oxide films
Very thick, block siphon, sprawl, the impact to the mobility of soldering acid such as gravity, welding point is full, and brazing welding is uneven
Even, see Fig. 1, its interior welds is full, sees Fig. 1 arrow A pointed location, and outside weldings are not full, and oxide-film is thicker, sees Fig. 1 arrow
Head B pointed location.
Content of the invention
It is an object of the invention to provide a kind of material and its preparation method and application of multilayer of ladder silicone content nothing brazing flux,
With the drawbacks described above for overcoming prior art to exist.
Described multilayer aluminium alloy nothing brazing flux material, including the sandwich layer, brazing layer and the cover layer that are combined successively, brazing layer and
The silicon mass content of cover layer is different；
Preferably, brazing layer silicon mass content 2-10% higher than cover layer silicon mass content；
Described multilayer aluminium alloy is 550-590 DEG C nothing brazing flux material, cover layer alloy melting point, and brazing layer alloy melting point is
At 550-590 DEG C, core alloys fusing point is more than 620 DEG C；
Wherein：
Described cover layer contains the composition of following mass percent：
Si 3-11%, Fe≤0.3%, Bi 0-0.3%, Zn 0-1%, remaining are aluminium；
Preferably, described cover layer contains the composition of following mass percent：
Si 3-11%, Fe≤0.3%, Bi 0-0.2%, Zn 0-1%, remaining are aluminium；
It is furthermore preferred that described cover layer contains the composition of following mass percent：
Si 4.5-10%, Fe≤0.26%, Bi 0-0.15%, Zn 0-1%, remaining are aluminium；
It is furthermore preferred that the described cover layer also rare earth element containing 0.05-0.3%, described rare earth element selected from Sm,
One or more of La, Ce, Nd, Er or Y, it is furthermore preferred that the content of the rare earth element is 0.05-0.15%；
Described brazing layer contains the composition of following mass percent：
Si 5-15%, Fe<0.3%, Mg 0.1-2%, Zn 0-5%, Bi 0-0.3%, remaining are aluminium；
Preferably, described brazing layer contains the composition of following mass percent：
Si 8-12.5%, Fe<0.3%, Mg 0.1-0.3%, Zn 0-5%, Bi 0-0.2%, remaining are aluminium；
It is furthermore preferred that the described brazing layer also rare earth element containing 0.05-0.3%, described rare earth element selected from Sm,
One or more of La, Ce, Nd, Er or Y；
It is furthermore preferred that the content of the rare earth element is 0.05-0.18%；
Described sandwich layer contains the composition of following mass percent：
Sm or RE 0-0.2%, 1xxx or 3xxx or 5xxx or 6xxx or 7xxx surplus；
The RE is selected from more than one of La, Ce, Nd, Er or Y；
It is alloy that term 1xxx represents aluminium alloy 1, i.e. commercial-purity aluminium；
It is alloy that term 3xxx represents aluminium alloy 3, i.e., a series of alloys with aluminium manganese as essential element；
It is alloy that term 5xxx represents aluminium alloy 5, i.e., a series of alloys with magnalium as essential element；
It is alloy that term 6xxx represents aluminium alloy 6, i.e. a series of alloys with aluminium silicon magnesium as essential element；
It is alloy that term 7xxx represents aluminium alloy 7, i.e. a series of alloys with aluminium zinc-magnesium copper as essential element.
, nothing brazing flux material, its recombination rate is as follows for described multilayer aluminium alloy：
The compound ratio of cover layer is 0.1-10%, is preferably combined than being 0.2-5%；
The compound ratio of brazing layer is 5-20%, is preferably combined than being 6-12%；
Remaining is sandwich layer recombination rate.
Described multilayer aluminium alloy nothing brazing flux material, soldering atmosphere is：
Soldering in atmosphere of inert gases or vacuum containing certain hypoxemia amount, soldering atmosphere oxygen content ＜ 50ppm, soldering temperature
Degree：560-620℃.
, nothing brazing flux material, brazing sheet gross thickness is in 0.1mm to 3mm, it is adaptable to heat exchanger for described multilayer aluminium alloy.
Preparation method, comprises the steps：
Using alloy casting apparatus, ingot casting is cast, to sandwich layer, brazing layer, cover layer and sacrifice layer respectively 480～500
DEG C 1～2h of homogenizing annealing, then hot rolling become thin plate, then weld together each layer, carry out hot rolling at 480-500 DEG C,
Then carry out cold rolling again, finally annealed according to demand, you can obtain product.
The multilayer of the ladder silicone content of the present invention optimizes solder without soldering acid effect nothing the material of brazing flux, can be used in system
Standby heat exchanger.
The invention has the beneficial effects as follows：First, overcome the deficiency of prior art, improve each layer tissue composition, cover layer and
Brazing layer all contains silicon material, using the brazing layer concentration difference different with cover layer silicone content, makes soldering acid from high concentration to low dense
The flowing of degree direction, effectively breaks through oxide-film.While the high Mg of concentration is also flowed with silicon material, it is diffused near oxide-film,
The magnesium for diffusing out in oxygen content than in the case of relatively low, magnesium first with Process on Aluminum Alloy Oxidation Film (AL2O3) occur to generate point crystalline substance
(MgAl2O4), the point crystalline substance of generation is easily brazed liquid (silicon material) and is rolled onto liquid internal, is fully contacted the soldering acid of welding, then plus
Upper capillary, invade profit etc. effect, make soldered fitting welding quality reach saturation.Second, add Bi this in cover layer or brazing layer
Low melting point element, is beneficial to which and takes the lead in breaking through oxide-film.
Description of the drawings
Fig. 1 is for nothing microgram after brazing flux material soldering in prior art.
Fig. 2 is the material structure schematic diagram of the multilayer nothing brazing flux of ladder silicone content.
Wherein：
The multilayer that Fig. 2-1 is combined successively for sandwich layer, brazing layer and cover layer is nothing the material structure schematic diagram of brazing flux.
The material structure that Fig. 2-2 respectively has cover layer for two-layer brazing layer on the outside of sandwich layer both sides, and two-layer brazing layer is illustrated
Figure.
Fig. 2-3 has brazing layer and cover layer for sandwich layer side, and sandwich layer opposite side is provided with the material structure schematic diagram of sacrifice layer.
Fig. 2-4 is the material structure schematic diagram for being provided with one layer of sacrifice layer between brazing layer and sandwich layer.
Specific embodiment
Referring to Fig. 2-1, described multilayer aluminium alloy nothing brazing flux material, including be combined successively sandwich layer 1, brazing layer 2 and cover
Cap rock 3；
Further, referring to Fig. 2-2, described multilayer aluminium alloy is equipped with the both sides of sandwich layer 1 multiple successively nothing brazing flux material
The brazing layer 2 of conjunction and cover layer 3；
Further, referring to Fig. 2-3, described multilayer aluminium alloy is compounded with pricker nothing brazing flux material successively in the side of sandwich layer 1
Layer 2 and cover layer 3, opposite side are provided with sacrifice layer 4；
Further, referring to Fig. 2-4, described sacrifice layer is arranged between brazing layer 2 and sandwich layer 1, and described sacrifice layer contains
There is the composition of following mass percent：Si 0.1-0.3%, Fe<0.3%, Mn<0.1%, Zn 1-4%, remaining are aluminium；
The compound ratio of described sacrifice layer 4 is 15-30%, is preferably combined than being 20-25%；
Embodiment 1～11, comparative example 1
Preparation method：
Using alloy casting apparatus, ingot casting, a length of 300mm of casting alloy, a width of 200mm is cast, thickness is 30mm.Alloying
Study point as shown in table 1,200mm a length of to ingot casting behind ingot mill surface, milling face, a width of 150mm, thickness are 20mm, to sandwich layer, pricker
Layer, cover layer, sacrifice layer are rolled to 3mm in 500 DEG C of homogenizing annealing 2h, then hot rolling, brazing layer, and cover layer rolls 1mm, so
Cover layer-brazing layer-sandwich layer-sacrifice layer-six layers of brazing layer-cover layer welds together afterwards, then carries out hot rolling, is rolled to thickness
3mm, then carry out cold rolling, 0.3mm is cold-rolled to, then different according to demand, the different conditions such as H24, H14 are processed or are annealed to, then
It is simulated soldering.
Soldering is carried out in vitreosil tube furnace, and quartz tube furnace is first vacuumized, and is then filled with tube furnace
Nitrogen, 20 minutes soldering cycles, from room temperature linear heat to 600 DEG C, are incubated 5min, subsequently, take out Muffle furnace, and in the air is cooled down
To room temperature, table 3 is experimental result after soldering.
1 different layers alloying component (mass percent) of table and solid liquid phase temperature
1 different layers alloying component (mass percent) of continued and solid liquid phase temperature
The method that the embodiment of the present invention takes MULTILAYER COMPOSITE combination, i.e. sandwich layer both sides all compound phases are with brazing layer and covering
Layer, or side is compound, or the compound difference in both sides.In embodiment, it is 2.5% to cover stratum proportion, and soldering stratum proportion is 10%, sacrificial
Domestic animal layer is 20%, and remaining is sandwich layer, and the final rolling thickness of five layers of composite brazing material is 0.6mm.
In table 2, embodiment 6 is compound for three layers, and embodiment 2 is compound for four layers, and embodiment 1,4,5,8,9,11 is tied for five layers
Structure, embodiment 3,7,10 are compound for six layers, and comparative example is five-layer structure.
2 embodiment of table and comparative example different layers alloy combination
| Cover layer | Brazing layer | Sandwich layer | Sacrifice layer | Brazing layer | Cover layer | |
| Embodiment 1 | C2 | B4 | A1 | B4 | C2 | |
| Embodiment 2 | C2 | B4 | A1 | C4 | ||
| Embodiment 3 | C4 | B5 | A2 | D2 | B5 | C4 |
| Embodiment 4 | C4 | B5 | A2 | B5 | C4 | |
| Embodiment 5 | C2 | B1 | A2 | B1 | C2 | |
| Embodiment 6 | C1 | B7 | A2 | |||
| Embodiment 7 | C4 | B1 | A3 | D2 | B1 | C4 |
| Embodiment 8 | C1 | B2 | A4 | B2 | C1 | |
| Embodiment 9 | C3 | B1 | A3 | B1 | C3 | |
| Embodiment 10 | C2 | B3 | A4 | D1 | B3 | C2 |
| Embodiment 11 | C1 | B6 | A1 | B6 | C1 | |
| Comparative example | C5 | B6 | A1 | B6 | C5 |
Table 3 is weld yield situation after material mechanical performance after soldering and soldering.As can be seen from Table 3, cover layer
Alusil alloy is made into by fine aluminium, soldering yield is increased substantially, sandwich layer corrodes and weakens significantly.
Appearance plane tie yield, joint corrosion situation after 3 alloy embodiment soldering of table
Claims (10)
1. the multilayer of ladder silicone content is nothing the material of brazing flux, it is characterised in that including the sandwich layer, brazing layer and the covering that are combined successively
Layer, brazing layer are different with the silicon mass content of cover layer.
2. the multilayer of ladder silicone content according to claim 1 is nothing the material of brazing flux, it is characterised in that the siliceous amount of brazing layer
Content 2-10% higher than cover layer silicon mass content.
3. the multilayer of ladder silicone content according to claim 2 is nothing the material of brazing flux, it is characterised in that cover layer alloy melts
Point is 550-590 DEG C, and brazing layer alloy melting point is that core alloys fusing point is more than 620 DEG C at 550-590 DEG C.
4. the multilayer of ladder silicone content is nothing the material of brazing flux, it is characterised in that described cover layer contains following mass percent
Composition：
Si 3-11%, Fe≤0.3%, Bi 0-0.3%, Zn 0-1%, remaining are aluminium；
Described brazing layer contains the composition of following mass percent：
Si 5-15%, Fe<0.3%, Mg 0.1-2%, Zn 0-5%, Bi 0-0.3%, remaining are aluminium；
Described sandwich layer contains the composition of following mass percent：
Sm or RE 0-0.2%, 1xxx or 3xxx or 5xxx or 6xxx or 7xxx surplus；
The RE is selected from more than one of La, Ce, Nd, Er or Y.
5. the multilayer of ladder silicone content according to claim 4 is nothing the material of brazing flux, it is characterised in that described cover layer
Composition containing following mass percent：
Si 3-11%, Fe≤0.3%, Bi 0-0.2%, Zn 0-1%, remaining are aluminium；
Described brazing layer contains the composition of following mass percent：
Si 8-12.5%, Fe<0.3%, Mg 0.1-0.3%, Zn 0-5%, Bi 0-0.2%, remaining are aluminium.
6. the multilayer of ladder silicone content according to claim 5 is nothing the material of brazing flux, it is characterised in that described cover layer
The also rare earth element containing 0.05-0.3%, described rare earth element are selected from one or more of Sm, La, Ce, Nd, Er or Y；
The described brazing layer also rare earth element containing 0.05-0.3%, described rare earth element selected from Sm, La, Ce, Nd, Er or
One or more of Y.
7. the multilayer of the ladder silicone content according to any one of claim 1～6 is nothing the material of brazing flux, it is characterised in that its
Recombination rate is as follows：
The compound ratio of cover layer is 0.1-10%, and brazing layer is compound than being 5-20%, and remaining is sandwich layer recombination rate.
8., nothing the preparation method of the material of brazing flux, which is special for the multilayer of the ladder silicone content according to any one of claim 1～7
Levy and be, comprise the steps：Using alloy casting apparatus, ingot casting is cast, sandwich layer, brazing layer, cover layer and sacrifice layer are divided
Do not anneal, then hot rolling becomes thin plate, then welds together each layer, hot rolling, then carry out again cold rolling, finally according to need
Ask and annealed, you can obtain product.
9. method according to claim 8, it is characterised in that adopt alloy casting apparatus, casts ingot casting, to sandwich layer, pricker
, respectively in 480～500 DEG C of 1～2h of homogenizing annealing, then hot rolling becomes thin plate for layer, cover layer and sacrifice layer, then will be each
Layer welds together, and carries out hot rolling at 480-500 DEG C, then carries out again cold rolling.
10. the multilayer of the ladder silicone content according to any one of claim 1～7 is nothing the application of the material of brazing flux, its feature
It is, for preparing heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610844488.5A CN106476359B (en) | 2016-09-23 | 2016-09-23 | Material and its preparation method and application of the multilayer of ladder silicone content without brazing flux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610844488.5A CN106476359B (en) | 2016-09-23 | 2016-09-23 | Material and its preparation method and application of the multilayer of ladder silicone content without brazing flux |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106476359A true CN106476359A (en) | 2017-03-08 |
| CN106476359B CN106476359B (en) | 2019-04-05 |
Family
ID=58267453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610844488.5A Active CN106476359B (en) | 2016-09-23 | 2016-09-23 | Material and its preparation method and application of the multilayer of ladder silicone content without brazing flux |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106476359B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944762A (en) * | 2017-04-26 | 2017-07-14 | 上海华峰新材料研发科技有限公司 | Low magnesium multilayer aluminium alloy brazing expansion material and its application |
| CN108247233A (en) * | 2017-12-13 | 2018-07-06 | 上海华峰新材料研发科技有限公司 | Preparation method of the alkali cleaning without brazing flux or vacuum brazing plate |
| CN111331962A (en) * | 2020-03-16 | 2020-06-26 | 银邦金属复合材料股份有限公司 | Composite board and preparation method thereof |
| EP3834981A1 (en) * | 2019-12-13 | 2021-06-16 | Aleris Rolled Products Germany GmbH | Multi-layered aluminium brazing sheet material |
| CN113246559A (en) * | 2021-05-19 | 2021-08-13 | 飞荣达科技(江苏)有限公司 | Aluminum alloy composite plate for enhancing weldability and preparation method thereof |
| EP3925728A1 (en) * | 2020-06-16 | 2021-12-22 | Aleris Rolled Products Germany GmbH | Aluminium alloy multi-layered brazing sheet material for flux-free brazing |
| CN115066311A (en) * | 2020-01-29 | 2022-09-16 | 诺贝丽斯科布伦茨有限责任公司 | Aluminium alloy multi-layer brazing sheet material for fluxless brazing |
| CN118011578A (en) * | 2024-04-09 | 2024-05-10 | 江苏亨通华海科技股份有限公司 | Composite aluminum strip for optical cable and brazing process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009183980A (en) * | 2008-02-06 | 2009-08-20 | Furukawa-Sky Aluminum Corp | Brazing method for aluminum alloy, and aluminum alloy cladding material |
| CN102089117A (en) * | 2008-07-02 | 2011-06-08 | 阿勒里斯铝业科布伦茨有限公司 | Aluminium brazing sheet material |
| CN102574248A (en) * | 2009-09-17 | 2012-07-11 | 萨帕铝热传输公司 | Aluminium brazing sheet |
| CN104626675A (en) * | 2014-12-31 | 2015-05-20 | 上海华峰新材料研发科技有限公司 | Preparation and processing method for high-strength corrosion-resistant composite aluminum foil material |
| CN104626674A (en) * | 2014-12-31 | 2015-05-20 | 上海华峰新材料研发科技有限公司 | Soldering flux-free soldering aluminum alloy material and preparation method thereof |
-
2016
- 2016-09-23 CN CN201610844488.5A patent/CN106476359B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009183980A (en) * | 2008-02-06 | 2009-08-20 | Furukawa-Sky Aluminum Corp | Brazing method for aluminum alloy, and aluminum alloy cladding material |
| CN102089117A (en) * | 2008-07-02 | 2011-06-08 | 阿勒里斯铝业科布伦茨有限公司 | Aluminium brazing sheet material |
| CN102574248A (en) * | 2009-09-17 | 2012-07-11 | 萨帕铝热传输公司 | Aluminium brazing sheet |
| CN104626675A (en) * | 2014-12-31 | 2015-05-20 | 上海华峰新材料研发科技有限公司 | Preparation and processing method for high-strength corrosion-resistant composite aluminum foil material |
| CN104626674A (en) * | 2014-12-31 | 2015-05-20 | 上海华峰新材料研发科技有限公司 | Soldering flux-free soldering aluminum alloy material and preparation method thereof |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944762B (en) * | 2017-04-26 | 2020-03-10 | 上海华峰铝业股份有限公司 | Low-magnesium multilayer aluminum alloy brazing expansion material and application thereof |
| CN106944762A (en) * | 2017-04-26 | 2017-07-14 | 上海华峰新材料研发科技有限公司 | Low magnesium multilayer aluminium alloy brazing expansion material and its application |
| CN108247233B (en) * | 2017-12-13 | 2020-10-20 | 上海华峰铝业股份有限公司 | Method for preparing alkali-washing brazing flux-free or vacuum brazing sheet |
| CN108247233A (en) * | 2017-12-13 | 2018-07-06 | 上海华峰新材料研发科技有限公司 | Preparation method of the alkali cleaning without brazing flux or vacuum brazing plate |
| JP2023505586A (en) * | 2019-12-13 | 2023-02-09 | ノベリス・コブレンツ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Multilayer aluminum brazing sheet material |
| EP3834981A1 (en) * | 2019-12-13 | 2021-06-16 | Aleris Rolled Products Germany GmbH | Multi-layered aluminium brazing sheet material |
| WO2021117007A1 (en) * | 2019-12-13 | 2021-06-17 | Aleris Rolled Products Germany Gmbh | Multi-layered aluminum brazing sheet material |
| CN115038546A (en) * | 2019-12-13 | 2022-09-09 | 诺贝丽斯科布伦茨有限责任公司 | Multilayer aluminum brazing sheet material |
| CN115038546B (en) * | 2019-12-13 | 2024-01-30 | 诺贝丽斯科布伦茨有限责任公司 | Multi-layer aluminum brazing sheet material |
| CN115066311A (en) * | 2020-01-29 | 2022-09-16 | 诺贝丽斯科布伦茨有限责任公司 | Aluminium alloy multi-layer brazing sheet material for fluxless brazing |
| CN115066311B (en) * | 2020-01-29 | 2024-06-11 | 诺贝丽斯科布伦茨有限责任公司 | Aluminum alloy multi-layer brazing sheet material for fluxless brazing |
| CN111331962A (en) * | 2020-03-16 | 2020-06-26 | 银邦金属复合材料股份有限公司 | Composite board and preparation method thereof |
| EP3925728A1 (en) * | 2020-06-16 | 2021-12-22 | Aleris Rolled Products Germany GmbH | Aluminium alloy multi-layered brazing sheet material for flux-free brazing |
| WO2021255638A1 (en) * | 2020-06-16 | 2021-12-23 | Aleris Rolled Products Germany Gmbh | Aluminium alloy multi-layered brazing sheet material for flux-free brazing |
| CN113246559A (en) * | 2021-05-19 | 2021-08-13 | 飞荣达科技(江苏)有限公司 | Aluminum alloy composite plate for enhancing weldability and preparation method thereof |
| CN118011578A (en) * | 2024-04-09 | 2024-05-10 | 江苏亨通华海科技股份有限公司 | Composite aluminum strip for optical cable and brazing process thereof |
| CN118011578B (en) * | 2024-04-09 | 2024-06-11 | 江苏亨通华海科技股份有限公司 | Composite aluminum strip for optical cable and brazing process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106476359B (en) | 2019-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106476359B (en) | Material and its preparation method and application of the multilayer of ladder silicone content without brazing flux | |
| EP3459676B1 (en) | Brazing sheet for flux-free brazing, flux-free brazing method and method for producing heat exchanger | |
| CN104626674B (en) | Soldering flux-free soldering aluminum alloy material and preparation method thereof | |
| EP3563968B1 (en) | Brazing sheet for flux-free brazing, method for flux-free brazing, and method for heat manufacturing heat exchanger | |
| RU2642245C2 (en) | Multilayer aluminium sheet for flux-free high temperature brazing in controlled atmosphere | |
| CN102574248B (en) | Aluminium brazing sheet | |
| CN106944762B (en) | Low-magnesium multilayer aluminum alloy brazing expansion material and application thereof | |
| US6849136B2 (en) | Filler metal for aluminum brazing sheet for heat exchangers and method of manufacturing same | |
| CN108699637B (en) | Method for manufacturing aluminum alloy brazing sheet | |
| JP2010255012A (en) | Clad material of aluminum alloy for heat exchanger | |
| WO2017122384A1 (en) | Heat exchanger and method for producing same | |
| WO2018216773A1 (en) | Aluminum alloy brazing sheet | |
| US11229978B2 (en) | Brazing sheet for flux-free brazing, method for flux-free brazing and method for manufacturing heat exchanger | |
| JP2011068933A (en) | Aluminum alloy clad material for heat exchanger | |
| JP5713451B2 (en) | Aluminum alloy brazing sheet and manufacturing method thereof, and brazing method of aluminum heat exchanger | |
| WO2018216771A1 (en) | Brazing method for aluminum alloy brazing sheet and method for producing heat exchanger | |
| JP5490603B2 (en) | Brazing method of aluminum member | |
| WO2016080434A1 (en) | Aluminum alloy cladding material for heat exchanger | |
| JP2005232507A (en) | Aluminum alloy clad material for heat exchanger | |
| JP3360026B2 (en) | Brazing method of aluminum alloy brazing sheet for heat exchanger | |
| JP5713452B2 (en) | Aluminum alloy brazing sheet and manufacturing method thereof, and brazing method of aluminum heat exchanger | |
| JP2011007384A (en) | Heat exchanger for automobile made of aluminum alloy and method for manufacturing the same, and method for manufacturing aluminum alloy extruded material for refrigerant passage pipe of heat exchanger | |
| CN106695157A (en) | Soldering lug for CAB soldering without soldering flux | |
| JP2018099725A (en) | Aluminum alloy brazing sheet | |
| JP6282444B2 (en) | Aluminum alloy brazing sheet, aluminum alloy assembly for brazing, and method of brazing aluminum alloy material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180813 Address after: 201507 1111 Yue Gong Road, Jinshan District, Shanghai Applicant after: HUAFON NIKKEI ALUMINIUM CORPORATION Address before: 201507 101, room 2, No. 1369, Yue Gong Road, Jinshan District industrial area, Shanghai. Applicant before: Shanghai Huafon New Material Research & Development Technology Co., Ltd. Applicant before: HUAFON NIKKEI ALUMINIUM CORPORATION |
|
| TA01 | Transfer of patent application right | ||
| CB02 | Change of applicant information |
Address after: 201507 1111 Yue Gong Road, Jinshan District, Shanghai Applicant after: Shanghai Huafeng Aluminum Co., Ltd. Address before: 201507 1111 Yue Gong Road, Jinshan District, Shanghai Applicant before: HUAFON NIKKEI ALUMINIUM CORPORATION |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |