CN109702377A - Compound aluminium foil material and preparation method thereof - Google Patents
Compound aluminium foil material and preparation method thereof Download PDFInfo
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- CN109702377A CN109702377A CN201711009152.8A CN201711009152A CN109702377A CN 109702377 A CN109702377 A CN 109702377A CN 201711009152 A CN201711009152 A CN 201711009152A CN 109702377 A CN109702377 A CN 109702377A
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Abstract
The present invention provides a kind of compound aluminium foil materials, it includes sandwich layer, water-touching layer and brazing layer, the sandwich layer includes: Si 0.6%~1.5%, Cu 0.6%~1.2%, Mn 1.5%~2.0%, Mg 0.05%~0.1%, Ti 0.03%~0.05%, Zn 0.03%~0.05%, Sm 0.08%~0.12%, surplus Al；The water-touching layer includes: Si, Cu, Mn, Mg, Ti, Zn, Zr, Sm and Al；The brazing layer includes Al2O3Particle and Si, La, V, Mn, Ti and Al.The present invention also provides a kind of methods for preparing the compound aluminium foil material.The compound aluminium foil material can improve wetability and bond strength between soldered fitting and alloy matrix aluminum.
Description
Technical field
The present invention relates to technical field of soldering materials, specifically, relate to a kind of compound aluminium foil material and its preparation side
Method.
Background technique
As the core material of manufacture automobile aluminum heat exchanger, MULTILAYER COMPOSITE aluminium alloy brazing aluminum foil material should have matter
Gently, the corrosion-resistant, comprehensive performances such as heat conductivity is good, intensity is high, molding processibility is good, soldering property is good.In order to reach above-mentioned requirements,
Then require the sandwich layer of material intensity with higher, and higher to being diffused between the different layers of each element in brazing process
Requirement.
In the structure of MULTILAYER COMPOSITE aluminium foil, sandwich layer plays a supportive role, and is the main body of material.Water-touching layer is the alloy of zincification
Layer, can effectively improve the resistance to corrosion of clad aluminum foil.Water-touching layer corrosion potential can be used as sacrificial than sandwich layer corrosion potential bottom
Domestic animal electrode protection sandwich layer.Brazing layer plays soldering in brazing process, and wherein the content height of silicon contacts tightly with welding performance
Close, silicone content is high, and the good fluidity of material, filling capacity is strong, but when it is diffused into sandwich layer, will lead to solid-phase component fusing,
Generate corrode.Currently, being to be improved to individual a certain layer mostly, there is no consider the elements such as zinc, silicon in available data
Diffusion problem causes soldering joint strength not high.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Summary of the invention
By in consideration of it, the present invention it is necessory to provide a kind of compound aluminium foil material and preparation method thereof.
The technical scheme adopted by the invention is that: a kind of compound aluminium foil material, it includes sandwich layer, water-touching layer and brazing layer,
The sandwich layer is arranged between the water-touching layer and the brazing layer；The thickness of the sandwich layer, the water-touching layer and the brazing layer
Degree is than being 1:(3~5): 2；
The sandwich layer is made of the element of following mass percent: Si 0.6%~1.5%, Cu 0.6%~1.2%, Mn 1.5%~
2.0%, Mg 0.05%~0.1%, Ti 0.03%~0.05%, Zn 0.03%~0.05%, Sm 0.08%~0.12%, surplus Al；
The water-touching layer is made of the element of following mass percent: Si 0.5%~1.0%, Cu 0.01%~0.05%, Mn
1.5%~2.0%, Mg 0.05%~0.1%, Ti 0.03%~0.05%, Zn 4.0%~7.0%, Zr 0.1%~0.2%, Sm
0.05%~0.08%, surplus Al；
The structural constituent of the brazing layer includes metal phase and average particle size particle size is the Al of the nm of 10nm~352O3Particle,
In, the metal phase is made of the element of following mass percent: Si 17%~23%, La 1.1%~1.4%, V 0.4%~
0.5%, Mn 0.7%~0.8%, Ti 1.6%~1.8%, remaining is Al, the Al2O3Particle accounts for the quality percentage of the brazing layer
Number is 1.5%~8.7%.
The present invention also provides a kind of method for preparing the compound aluminium foil material, step includes:
Each raw material is weighed respectively according to the contained element of the sandwich layer, water-touching layer and brazing layer, is then melted respectively
Refining, and is cast into three kinds of aluminium cast panel materials respectively, three kinds of aluminium cast panel materials is carried out respectively behind cutting milling face from top to bottom according to touching water
The sequence of layer, sandwich layer and brazing layer stack and weld to edge, then carries out at a temperature of 470 DEG C~510 DEG C equal
Annealing 10 hours~15 hours is homogenized, annealed aluminium cast panel material is obtained；To the annealed aluminium cast panel material in 460 DEG C~500 DEG C temperature
Lower carry out hot rolling treatment, after hot rolling with a thickness of 3mm~5mm；Then it is cold-rolled to again and obtains clad aluminum foil half using thickness
Finished product；Finally to the clad aluminum foil semi-finished product temperature be 280 DEG C~310 DEG C at carry out annealing 1 hour~3 hours, obtain
Compound aluminium foil material finished product.
Based on above-mentioned, the brazing layer in three kinds of aluminium cast panel material is through the following steps that obtained: according to soldering
The metallic element for the mass percent that metal phase contains in layer, weighs raw material Si powder, La powder, V powder, Mn powder, Ti powder respectively
With Al powder, and weigh average particle size particle size be the nm of 10nm~35 Al2O3Particle, then under vacuum conditions by the Si powder,
La powder, V powder, Mn powder, Ti powder and Al powder carry out vacuum ball milling, obtain mixture to be burnt, and the mixture to be burnt is placed in
It in frequency vacuum smelting furnace crucible, is melted under protection of argon gas, the Al is added until completely melted2O3Particle is cast into pricker
Expect ingot casting；The oxide skin and riser formed on the solder ingot casting is removed, plate brazing layer is squeezed into after heating
The effect of each element is as follows in compound aluminium foil material provided by the invention:
Refinement crystal grain element V can optimize the form and distribution of Al-Si eutectic in solder, while also refine the ɑ-Al in solder
Solid solution, so that the al-si eutectic of bulk cluster-shaped is uniformly distributed between ɑ-Al solid solution in brazed seam, the shape at soldering interface
At apparent transition zone, the tensile strength of soldered fitting is improved.Rare earth element Sm can reduce surface tension as doped chemical
With promote soldering interface elements diffusion, and average particle size particle size be the nm of 10nm~35 Al2O3Particle can provide more for solid solution
More nucleation points further improves the tensile strength of soldered fitting.Experiments have shown that compound aluminium foil material provided by the present invention
The soldered fitting that welding is formed has good corrosion resistance and higher tensile strength, and the tensile strength actually obtained is 170
MPa or more.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be described in further detail.
Embodiment 1
A kind of compound aluminium foil material is present embodiments provided, it includes sandwich layer, water-touching layer and brazing layer, and the sandwich layer is arranged in institute
It states between water-touching layer and the brazing layer；The thickness ratio of the sandwich layer, the water-touching layer and the brazing layer is 1:5:2；
The sandwich layer is made of the element of following mass percent: Si 0.6%, Cu1.2%, Mn 2.0%, Mg 0.1%, Ti
0.05%, Zn 0.05%, Sm 0.12%, surplus Al；
The water-touching layer is made of the element of following mass percent: Si 1.0%, Cu0.05%, Mn 2.0%, Mg0.1%,
Ti0.05%, Zn7.0%, Zr0.2%, Sm0.08%, surplus Al；
The structural constituent of the brazing layer includes metal phase and average particle size particle size is the Al of 35 nm2O3Particle, wherein described
Metal phase is made of the element of following mass percent: Si 23%, La 1.4%, V 0.5%, Mn 0.8%, Ti 1.8%, remaining is
Al, the Al2O3The mass percent that particle accounts for the brazing layer is 8.7%.
The present invention also provides a kind of method for preparing the compound aluminium foil material, step includes:
Weigh each raw material respectively according to the element of the sandwich layer, the water-touching layer and the brazing layer contained, then respectively into
Row melting, and be cast into three kinds of aluminium cast panel materials respectively, three kinds of aluminium cast panel materials are carried out respectively behind cutting milling face from top to bottom according to
The sequence of water-touching layer, sandwich layer and brazing layer stack and weld to edge, is then homogenized at a temperature of 510 DEG C
Annealing 10 hours, obtains annealed aluminium cast panel material；Hot rolling treatment is carried out at a temperature of 460 DEG C to the annealed aluminium cast panel material, then
It is cold-rolled to again and obtains clad aluminum foil semi-finished product using thickness；It is finally 310 DEG C in temperature to the clad aluminum foil semi-finished product
Under carry out annealing 1 hour, obtain compound aluminium foil material finished product.
Wherein, the brazing layer in three kinds of aluminium cast panel material is through the following steps that obtained: according in brazing layer
The metallic element for the mass percent that metal phase contains weighs raw material Si powder, La powder, V powder, Mn powder, Ti powder and Al respectively
Powder, and weigh the Al that average particle size particle size is 35 nm2O3Particle, then under vacuum conditions by the Si powder, La powder, V powder,
Mn powder, Ti powder and Al powder carry out vacuum ball milling, obtain mixture to be burnt, the mixture to be burnt is placed in intermediate frequency vacuum metling
It in furnace crucible, is melted under protection of argon gas, the Al is added until completely melted2O3Particle is cast into solder ingot casting；It removes
The oxide skin and riser on the solder ingot casting are formed, plate brazing layer is squeezed into after heating.
Soldered fitting performance test: two sections of aluminium alloy standard tensiles are tried using compound aluminium foil material provided in this embodiment
Sample is brazed into tensile sample in a vacuum furnace, and the binding performance of brazing layer and alloy matrix aluminum is evaluated by tensile strength.Through
Test, the soldered fitting with a thickness of 3.0mm prepared on alloy matrix aluminum using compound aluminium foil material provided in this embodiment
Tensile strength at normal temperature can reach 189MPa.
Embodiment 2
The present embodiment provides a kind of compound aluminium foil material, the compound aluminium foil material includes sandwich layer, water-touching layer and brazing layer, described
Sandwich layer is arranged between the water-touching layer and the brazing layer；The thickness ratio of the sandwich layer, the water-touching layer and the brazing layer
For 1:3:2；
The sandwich layer is made of the element of following mass percent: Si 1.5%, Cu 0.6%, Mn 2.0%, Mg 0.1%, Ti
0.03%, Zn 0.03%, Sm 0.08%, surplus Al；
The water-touching layer is made of the element of following mass percent: Si 1.0%, Cu 0.05%, Mn 2.0%, Mg 0.05%, Ti
0.03%, Zn 4.0%, Zr 0.1%, Sm 0.05%, surplus Al；
The structural constituent of the brazing layer includes metal phase and average particle size particle size is the Al of 10nm2O3Particle, wherein the gold
Symbolic animal of the birth year is made of the element of following mass percent: Si 17%, La 1.1%, V0.5%, Mn0.8%, Ti 1.6%, remaining is Al,
The Al2O3The mass percent that particle accounts for the brazing layer is 1.5%.
The present embodiment also provides a kind of method for preparing the compound aluminium foil material, the step in specific steps and embodiment 1
It is rapid identical.
Using performance test methods same as Example 1, it can be deduced that utilize clad aluminum foil provided in this embodiment
Expect that the tensile strength of the soldered fitting with a thickness of 2.0mm prepared on alloy matrix aluminum at normal temperature can reach 185MPa.
Embodiment 3
The present embodiment provides a kind of compound aluminium foil material, the compound aluminium foil material includes sandwich layer, water-touching layer and brazing layer, described
Sandwich layer is arranged between the water-touching layer and the brazing layer；The thickness ratio of the sandwich layer, the water-touching layer and the brazing layer
For 1:4:2；
The sandwich layer is made of the element of following mass percent: Si 1.0%, Cu 0.9%, Mn 2.0%, Mg 0.1%, Ti
0.03%, Zn 0.03%, Sm0.12%, surplus Al；
The water-touching layer is made of the element of following mass percent: Si 0.8%, Cu 0.05%, Mn 2.0%, Mg 0.1%, Ti
0.03%, Zn 7.0%, Zr 0.1%, Sm 0.07%, surplus Al；
The structural constituent of the brazing layer includes metal phase and average particle size particle size is the Al of 22 nm2O3Particle, wherein described
Metal phase is made of the element of following mass percent: Si 20%, La 1.2%, V0.5%, Mn 0.8%, Ti 1.7%, remaining is
Al, the Al2O3The mass percent that particle accounts for the brazing layer is 5.0%.
The present embodiment also provides a kind of method for preparing the compound aluminium foil material, and step includes:
Weigh each raw material respectively according to the element of the sandwich layer, the water-touching layer and the brazing layer contained, then respectively into
Row melting, and be cast into three kinds of aluminium cast panel materials respectively, three kinds of aluminium cast panel materials are carried out respectively behind cutting milling face from top to bottom according to
The sequence of water-touching layer, sandwich layer and brazing layer stack and weld to edge, is then homogenized at a temperature of 470 DEG C
Annealing 12 hours, obtains annealed aluminium cast panel material；Hot rolling treatment is carried out at a temperature of 480 DEG C to the annealed aluminium cast panel material, then
It is cold-rolled to again and obtains clad aluminum foil semi-finished product using thickness；It is finally 280 DEG C in temperature to the clad aluminum foil semi-finished product
Under carry out annealing 3 hours, obtain compound aluminium foil material finished product.
Using performance test methods same as Example 1, it can be deduced that utilize clad aluminum foil provided in this embodiment
Expect that the tensile strength of the soldered fitting with a thickness of 2.2mm prepared on alloy matrix aluminum at normal temperature can reach 198MPa.
Embodiment 4
The present embodiment provides a kind of compound aluminium foil material, the compound aluminium foil material includes sandwich layer, water-touching layer and brazing layer, described
Sandwich layer is arranged between the water-touching layer and the brazing layer；The thickness ratio of the sandwich layer, the water-touching layer and the brazing layer
For 1:4:2；
The sandwich layer is made of the element of following mass percent: Si 1.5%, Cu 0.95%, Mn 2.0%, Mg 0.05%, Ti
0.03%, Zn 0.03%, Sm 0.12%, surplus Al；
The water-touching layer is made of the element of following mass percent: Si 1.0%, Cu 0.05%, Mn 2.0%, Mg 0.09%, Ti
0.04%, Zn 5.6%, Zr 0.2%, Sm 0.07%, surplus Al；
The structural constituent of the brazing layer includes metal phase and average particle size particle size is the Al of 20nm2O3Particle, wherein described
Al2O3The mass percent that particle accounts for the brazing layer is 1.5%；The metal phase is made of the element of following mass percent:
Si 23%, La 1.4%, V 0.5%, Mn 0.75%, Ti 1.67%, remaining is Al.
The present embodiment also provides a kind of method for preparing the compound aluminium foil material, the step in specific steps and embodiment 1
It is rapid identical.
Using performance test methods same as Example 1, it can be deduced that utilize clad aluminum foil provided in this embodiment
Expect that the tensile strength of the soldered fitting with a thickness of 2.0mm prepared on alloy matrix aluminum at normal temperature can reach 205MPa.
Embodiment 5
The present embodiment provides a kind of compound aluminium foil material, the compound aluminium foil material includes sandwich layer, water-touching layer and brazing layer, described
Sandwich layer is arranged between the water-touching layer and the brazing layer；The thickness ratio of the sandwich layer, the water-touching layer and the brazing layer
For 1:5:2；
The sandwich layer is made of the element of following mass percent: Si 1.28%, Cu 0.98%, Mn 1.5%, Mg 0.05%, Ti
0.04%, Zn 0.03%, Sm 0.12%, surplus Al；
The water-touching layer is made of the element of following mass percent: Si 1.0%, Cu 0.05%, Mn 1.5%, Mg 0.09%, Ti
0.05%, Zn 7.0%, Zr 0.1%, Sm 0.05%, surplus Al；
The structural constituent of the brazing layer includes metal phase and average particle size particle size is the Al of 10nm2O3Particle, wherein described
Al2O3The mass percent that particle accounts for the brazing layer is 1.5%；The metal phase is made of the metal of following mass percent:
Si 18.95%, La 1.4%, V 0.5%, Mn 0.8%, Ti 1.8%, remaining is Al.
The present embodiment also provides a kind of method for preparing the compound aluminium foil material, the step in specific steps and embodiment 1
It is rapid identical.
Using performance test methods same as Example 1, it can be deduced that utilize clad aluminum foil provided in this embodiment
Expect that the tensile strength of the soldered fitting with a thickness of 2.0mm prepared on alloy matrix aluminum at normal temperature can reach 212MPa.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (3)
1. a kind of compound aluminium foil material, which is characterized in that it includes sandwich layer, water-touching layer and brazing layer, and the sandwich layer is arranged in institute
It states between water-touching layer and the brazing layer；The thickness ratio of the sandwich layer, the water-touching layer and the brazing layer is 1:(3~5): 2；
The sandwich layer is made of the element of following mass percent: Si 0.6%~1.5%, Cu 0.6%~1.2%, Mn 1.5%~
2.0%, Mg 0.05%~0.1%, Ti 0.03%~0.05%, Zn 0.03%~0.05%, Sm 0.08%~0.12%, surplus Al；
The water-touching layer is made of the element of following mass percent: Si 0.5%~1.0%, Cu 0.01%~0.05%, Mn
1.5%~2.0%, Mg 0.05%~0.1%, Ti 0.03%~0.05%, Zn 4.0%~7.0%, Zr 0.1%~0.2%, Sm
0.05%~0.08%, surplus Al；
The structural constituent of the brazing layer includes metal phase and average particle size particle size is the Al of the nm of 10nm~352O3Particle, wherein
The metal phase is made of the element of following mass percent: Si 17%~23%, La 1.1%~1.4%, V 0.4%~0.5%,
Mn 0.7%~0.8%, Ti 1.6%~1.8%, remaining is Al, the Al2O3The mass percent that particle accounts for the brazing layer is
1.5%~8.7%.
2. a kind of method for preparing compound aluminium foil material described in claim 1, step include:
Element contained by sandwich layer described in accordance with the claim 1, water-touching layer and brazing layer weighs each raw material respectively, then distinguishes
Carry out melting, and be cast into three kinds of aluminium cast panel materials respectively, three kinds of aluminium cast panel materials are carried out respectively behind cutting milling face from top to bottom by
Stack and weld edge according to the sequence of water-touching layer, sandwich layer and brazing layer, then at a temperature of 470 DEG C~510 DEG C
It carries out homogenizing annealing 10 hours~15 hours, obtains annealed aluminium cast panel material；To the annealed aluminium cast panel material 460 DEG C~500
Hot rolling treatment is carried out at a temperature of DEG C, after hot rolling with a thickness of 3mm~5mm；Then it is cold-rolled to again obtained using thickness it is compound
Aluminium foil semi-finished product；Finally to the clad aluminum foil semi-finished product be 280 DEG C~310 DEG C in temperature to carry out annealing 1 hour~3 small
When, obtain compound aluminium foil material finished product.
3. the method according to claim 2 for preparing compound aluminium foil material, which is characterized in that in three kinds of aluminium cast panel material
The brazing layer through the following steps that obtained: the matter in brazing layer described in accordance with the claim 1 contained by metal phase
The element for measuring percentage, weighs raw material Si powder, La powder, V powder, Mn powder, Ti powder and Al powder, and weigh average grain respectively
Having a size of 10nm~Al of 35 nm2O3Particle, then under vacuum conditions by the Si powder, La powder, V powder, Mn powder, Ti powder
Vacuum ball milling is carried out with Al powder, mixture to be burnt is obtained, the mixture to be burnt is placed in intermediate frequency vacuum smelting furnace crucible,
It is melted under argon gas protection, the Al is added until completely melted2O3Particle is cast into solder ingot casting；Removing forms the pricker
Expect the oxide skin and riser on ingot casting, plate brazing layer is squeezed into after heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711009152.8A CN109702377A (en) | 2017-10-25 | 2017-10-25 | Compound aluminium foil material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711009152.8A CN109702377A (en) | 2017-10-25 | 2017-10-25 | Compound aluminium foil material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN109702377A true CN109702377A (en) | 2019-05-03 |
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ID=66252098
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711009152.8A Withdrawn CN109702377A (en) | 2017-10-25 | 2017-10-25 | Compound aluminium foil material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111195657A (en) * | 2020-01-10 | 2020-05-26 | 陈忠德 | Electronic aluminum foil composite material and electronic aluminum foil prepared from same |
-
2017
- 2017-10-25 CN CN201711009152.8A patent/CN109702377A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111195657A (en) * | 2020-01-10 | 2020-05-26 | 陈忠德 | Electronic aluminum foil composite material and electronic aluminum foil prepared from same |
| CN111195657B (en) * | 2020-01-10 | 2022-04-01 | 陈忠德 | Electronic aluminum foil composite material and electronic aluminum foil prepared from same |
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