CN109465563A - A kind of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder and preparation method thereof - Google Patents
A kind of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder and preparation method thereof Download PDFInfo
- Publication number
- CN109465563A CN109465563A CN201811274103.1A CN201811274103A CN109465563A CN 109465563 A CN109465563 A CN 109465563A CN 201811274103 A CN201811274103 A CN 201811274103A CN 109465563 A CN109465563 A CN 109465563A
- Authority
- CN
- China
- Prior art keywords
- solder
- alloy
- temperature
- ingot
- aluminium
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
- B23K35/286—Al as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
A kind of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder and preparation method thereof, the solder is by following content at being grouped as: Cu 15~25wt%, 5~7wt% of Si, 1~5wt% of Ni, 0.3~1.0wt% of Mg, Ti 0.05~0.2wt%, Bi 0.1~0.3wt%, Al surplus, the brazing filler metal melts temperature is low, brazing manufacturability is good, has good wetability, rate of deposition and mechanical property.The step of preparation method is using " the super plasticized processing-ausrolling-cold rolling of founding-centrifugal casting-", this method is simple, is conducive to batch production.The foil-shaped brazing material that thickness 0.03mm can be prepared using this method is suitable for a variety of aluminium alloy element vacuum brazings and aluminum copper dissimilar metal component vacuum brazing demand.
Description
Technical field
The present invention relates to a kind of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state foil-shaped brazing materials and preparation method thereof, mainly
For aluminum copper dissimilar metal vacuum brazing, aluminium base intermediate temperature solder can also be cooperated to realize aluminium alloy step brazing, while fill up aluminium
The defect of base low-temperature brazing filler metal wettability difference belongs to metallurgy and calendering processing technique field.
Background technique
Soldering, which refers to, makees solder using the liquidus temperature metal lower than base material solidus temperature, by part and solder heat
It fills play movement using solder wetting base material to brazing filler metal melts and is mutually dissolved with base material and spreads and realize union piece
Method.Copper aluminum dissimilar metal connector is due to can be applied to many works with excellent mechanical property and conductive, heating conduction
Industry field, such as electrical engineering, chemical industry, refrigerating industry.Joint of aluminium and copper can be used pressure welding, melting welding, brazing and diffusion welding form,
The features such as middle soldering has heating temperature low, smaller on base material tissue and performance influence, and precision is high, is the main side of aluminum bronze connection
Method.Vacuum brazing is not needed using brazing flux, can reduce the corrosion to base material, is suitble to the processing of high-performance aluminum copper sleeve.
Aluminum Alloy Vacuum Brazing generally uses Al-Si-Mg solder, especially 4004 trade mark components, but its fusion temperature compared with
It is high.Known the aluminium alloy intermediate temperature solder trade mark Al-Si-Cu, Al-Si-Ge, Al-Si-Zn, Al-Ag-Ge, Al-Ag-Cu etc. are very
It is crisp, it is adapted only to cast bar and is difficult to be processed into foil-shaped brazing material, and corrosion resistance and brazing manufacturability are poor.The brazing requirements of aluminium alloy and copper
Brazing temperature is not higher than 545 DEG C, to reduce CuAl2The thickness of intermetallic compound content and copper reactive aluminum layer, to guarantee connector
Intensity and corrosion resistance.Therefore there is an urgent need to develop a kind of 450~520 DEG C of fusion temperature range of solder, aluminium alloy is solved
With copper vacuum brazing bottleneck.
Summary of the invention
The purpose of the present invention is to provide a kind of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state foil-shaped brazing material and its systems
Preparation Method, the brazing filler metal melts temperature are low: 495~515 DEG C, thickness is thin (0.03mm or so), has good wetability and mechanics
Performance can be not higher than 540 DEG C of realization vacuum brazings, be suitable for a variety of aluminium alloy low temps such as 3A21,2A50,6063 and 6061 or divide
Grade vacuum brazing, it can also be used to aluminum copper dissimilar metal vacuum brazing.
To achieve the above object, the invention adopts the following technical scheme:
A kind of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder, the solder is by following content at being grouped as: Cu
5~7wt% of 15~25wt%, Si, Ni 1~5wt%, Mg 0.3~1.0wt%, Ti 0.05~0.2wt%, Bi 0.1~
0.3wt%, Al surplus.
Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder as described above, it is preferable that the solder at grouping
Become: 18~22wt% of Cu, Si5~7wt%, Ni1.5~2.5wt%, Mg 0.3~1wt%, Ti 0.1~0.2wt%, Bi
0.2~0.3wt%, Al surplus.
Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder as described above, it is preferable that the solder is foil-like pricker
Material, solder with a thickness of 0.03~0.15mm.
On the other hand, the present invention provides a kind of preparation method of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder,
The step of this method is using " the super plasticized processing-ausrolling-cold rolling of founding-centrifugal casting-", concrete operations are as follows:
I. stock up: the purity of aluminium is greater than 99.9%, and copper selects oxygen-free copper, and the purity of silicon is greater than 99.99%, and the purity of nickel is big
In 99.9%, the purity of magnesium is greater than 99.99%, and the purity of titanium is greater than 99.99%, and the purity of bismuth is greater than 99.99%；According to as above
The each component mass percent weighs raw material；
II. intermediate alloy is prepared:
(I) aluminium ingot is added into the graphite crucible of intermediate frequency furnace, heating is added copper ingot, makes furnace temperature after aluminium ingot fusing
750~800 DEG C are risen to, is sufficiently stirred, after copper ingot is all melting down, ingot casting, obtains Al- by 700~750 DEG C of alloy casting temperature
Cu intermediate alloy；
(II) be added aluminium ingot into the graphite crucible of intermediate frequency furnace, heating after aluminium ingot fusing, make furnace temperature rise to 800~
850 DEG C, polysilicon is pressed into molten aluminum, after polysilicon is all melting down, in 800~850 DEG C of 10~15min of heat preservation, is sufficiently stirred,
Ingot casting, obtains Al-Si intermediate alloy by 850~900 DEG C of alloy casting temperature；
(III) aluminium ingot is added into the graphite crucible of intermediate frequency furnace, heating makes furnace temperature rise to 1000 after aluminium ingot fusing
~1050 DEG C, pure titanium is added, after titanium is all melting down, in 1000~1050 DEG C of 10~15min of heat preservation, is sufficiently stirred, ingot casting, closes
1050~1100 DEG C of golden cast temperature, obtains Al-Ti intermediate alloy；
III. alloy casting: fine aluminium is put into the graphite crucible of intermediate frequency furnace, is heated up, after aluminium ingot all fusing,
Al-Cu, Al-Si, Al-Ti intermediate alloy and pure nickel band are sequentially added, after intermediate alloy and nickel are all melting down, is warming up to 750
~800 DEG C, 10~15min is kept the temperature, carbon trichloride indentation aluminium alloy bottom stirring is de-gassed with graphite cover, slag making, is skimmed
Finish, spread a little refining agent, refining agent selects potassium fluoroaluminate, removes surface scum, be warming up to 650~700 DEG C, addition magnesium and
Bismuth is sufficiently stirred, and casting obtains ingot casting；
IV. centrifugal casting: the solder ingot casting after founding is crushed, and is put into centrifugal casting furnace in graphite crucible, in Ar gas
The lower fusing of protection, is warming up to 650~700 DEG C after being completely melt, cast the thin of 1.5~2.5mm thickness using centrifugally cast mode
Plate；
V. super plasticized processing: the obtained thin plate of step IV is placed in resistance furnace, keeps the temperature 12~16 in 400 DEG C~420 DEG C
Hour, then it is warming up to 480 DEG C~490 DEG C 30~45min of heat preservation, hardening；
VI. ausrolling: 450 DEG C~460 DEG C of slab heating temperature that step V is obtained, 450 DEG C of rolling mill roll temperature~
460 DEG C, ausrolling is carried out, pass reduction 3%~5% obtains the band of 0.5~0.7mm thickness；
VII. cold rolling: the band after ausrolling is subjected to cold rolling, the temperature of cold rolling is 5 DEG C~50 DEG C, then
It is made annealing treatment, annealing temperature is 420~450 DEG C, keeps the temperature 1.5~2h；Multi-pass cold rolling is until obtain the thickness needed.
Preparation method as described above, it is preferable that the content of copper is in Al-Cu intermediate alloy in the step II
The content of silicon is 30wt% in 50wt%, Al-Si intermediate alloy, and the content of titanium is 5wt% in Al-Ti intermediate alloy.
Preparation method as described above, it is preferable that in the step III dosage of carbon trichloride be furnace volume 0.3~
0.4wt%, the dosage of refining agent are 0.2~0.3wt% of furnace volume.
Preparation method as described above, it is preferable that in the step VII control of cold rolling pass working modulus 3%~5%,
Cold rolling general working rate is 9%~15%.
Another aspect, the present invention provide a kind of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder, are using such as
Upper the method preparation.
Exist in another aspect, the present invention provides Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder as described above
Answering in the aluminium alloy low temp of 3A21,2A50,6063 and 6061 or classification vacuum brazing and aluminum copper dissimilar metal vacuum brazing
With.
Solder of the invention is the seven constituent element solder of medium temperature based on AlCuSi ternary eutectic system.Wherein, Mg is added
One effect of element is to reduce fusing point, another effect is the oxidation film that substrate is destroyed in vacuum brazing, makes solder and base
Dissolution and diffusion occur between material.An effect of addition Ni is the CuAl in changeable solder2The form of intermetallic compound, drop
Low solder embrittlement improves the processing performance of solder；Another effect is to improve the corrosion resistance of connector.Bi is added to promote pricker
The wetability of material and aluminum alloy base material improves brazing property.Ti element is added to weaken the effect of solder and Copper base material, is reduced anti-
Thickness degree is answered, the brittleness of connector is reduced, improves strength of joint.The solder ingredient design science, proportion rationally, can be applied to
A variety of aluminium alloy element solderings.The beneficial effects of the present invention are the following aspects:
(1) Al-Cu-Si-Ni-Mg-Ti-Bi acieral state foil-shaped brazing material of the invention be suitable for 3A21,2A50,6063 and
The vacuum brazing of a variety of aluminium alloys such as 6061 and above-mentioned aluminium alloy medium temperature or classification vacuum brazing, can be used for aluminium alloy
With the vacuum brazing of copper heterogenous metal；The solder thickness can reach 0.03mm, be suitable for a variety of aluminium alloy element vacuum brazings and
Aluminum copper dissimilar metal component vacuum brazing demand.
(2) fusion temperature of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state foil-shaped brazing material of the invention is low, be 495~
515 DEG C, to aluminium alloy can it is not high in 540 DEG C when complete vacuum brazing；The brazing manufacturability of the solder is good, has good
Wetability, rate of deposition are higher than 95%；Weld seam tensile strength sigmab>=>=90MPa, shear strength τ >=60MPa.
(3) present invention prepare method of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state foil-shaped brazing material by founding, be centrifuged
Casting, super plasticized processing, ausrolling, cold-rolling process combine, and the foil-shaped brazing material thickness prepared reaches 0.03mm.Wherein,
First prepared using centrifugal casting with a thickness of 1-2mm thin plate；Super plasticized processing step refining alloy crystal grain, keeps alloying component equal
It is even；Ausrolling step makes alloy be changed into rolling state by casting state, has cold-forming property, and further decreases solder thickness
To moon 0.8mm；The foil-shaped brazing material of required thickness is finally obtained using multi-pass cold rolling, the solder any surface finish of acquisition, thickness are equal
It is even.This method is simple, is conducive to large-scale production.
Detailed description of the invention
Fig. 1 is the differential thermal analysis for the Al-Cu-Si-Ni-Mg-Ti-Bi alloy state foil-shaped brazing material that the embodiment of the present invention 1 obtains
Map.
Fig. 2 is the Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder as-cast structure gold of comparative example 1 of the present invention preparation
Phase photo.
Fig. 3 is that the Al-Cu-Si-Mg-Ti-Bi acieral state solder as-cast structure metallographic of comparative example 1 of the present invention preparation shines
Piece.
Specific embodiment
It is alloy state foil-shaped to Al-Cu-Si-Ni-Mg-Ti-Bi of the present invention below in conjunction with the embodiment of specific burdening calculation
Solder and preparation method thereof is further described.
The sorting of following embodiment and intermediate alloy the preparation method is as follows:
Aluminium: selecting rafifinal, and purity is greater than 99.9%；Copper selects oxygen-free copper；The purity of silicon is selected to be greater than 99.99%；Choosing
It is greater than 99.9% with the purity of nickel,；Magnesium purity should be greater than 99.99%, and titanium purity is greater than 99.99%, and bismuth purity is greater than
99.99%.
Prepare intermediate alloy:
The melting of Al-Cu50 intermediate alloy
1) equipment: 10kg intermediate frequency furnace；
2) mold: water cooling punching block: 30 × 210 × 440mm；
3) ingredient: every furnace presses 10kg ingredient；
4) operate: after aluminium ingot is added in graphite-clay crucible, heating is added copper ingot, makes furnace temperature liter after aluminium ingot fusing
To 700~750 DEG C, it is sufficiently stirred, after copper ingot is all melting down, ingot casting, 700~750 DEG C of alloy casting temperature.
The melting of Al-Si30 intermediate alloy
1) equipment: 10kg intermediate frequency furnace；
2) mold: water cooling punching block: 30 × 210 × 440mm；
3) ingredient: every furnace presses 10kg ingredient；
4) operate: after aluminium ingot is added in graphite-clay crucible, heating makes furnace temperature rise to 800 DEG C after aluminium ingot fusing,
Silicon is pressed into molten aluminum, after silicon is all melting down, in 800 DEG C of heat preservation 10min, is sufficiently stirred, ingot casting, alloy casting temperature 850~
900℃。
The melting of Al-Ti5 intermediate alloy
1) equipment: 10kg intermediate frequency furnace；
2) mold: water cooling punching block: 30 × 210 × 440mm；
3) ingredient: every furnace presses 10kg ingredient；
4) it operates: aluminium ingot being added into graphite-clay crucible, heating makes furnace temperature rise to 1000 DEG C, add after aluminium ingot fusing
Enter pure titanium, after titanium is all melting down, in 1000 DEG C of heat preservation 10min, is sufficiently stirred, ingot casting, alloy casting temperature 1050~1100
℃。
Embodiment 1 prepares Al-Cu-Si-Ni-Mg-Ti-Bi acieral state foil-shaped brazing material (one)
Step 1: ingredient
Take Al-Cu5022kg, Al-Si3010kg, Al-Ti51kg, aluminium 15.25kg, nickel 1.25kg, magnesium 0.4kg, bismuth
0.1kg。
Step 2: alloy casting
1) equipment: 150kg intermediate frequency furnace；
2) mold: Φ 80 × 300mm water cooling punching block；
3) ingredient: adding return material must not exceed the 30% of furnace volume；
4) operate: fine aluminium is put into the graphite crucible of intermediate frequency furnace, heat up, after aluminium ingot all fusing after, successively plus
Enter Al-Cu, Al-Si, Al-Ti intermediate alloy and pure nickel band, after intermediate alloy and nickel are all melting down, is warming up to 750 DEG C, heat preservation
Carbon trichloride indentation aluminium alloy bottom stirring is de-gassed, slag making with graphite cover, skims and finish, spread a little refining by 15min
Agent, refining agent select potassium fluoroaluminate, remove surface scum, are warming up to 650 DEG C, add magnesium and bismuth, are sufficiently stirred, are cast
Ingot.
Step 3: centrifugal casting
1) equipment: centrifugal casting furnace；
2) mold: 10 × 200 × 300mm water cooling punching block；
Solder ingot casting after founding is crushed, is put into centrifugal casting furnace in graphite crucible, is melted under Ar gas shielded, it is complete
It is warming up to 650 DEG C after running down, thin plate is cast using centrifugally cast mode, with a thickness of 2mm.
Step 4: super plasticized processing
1) equipment: resistance furnace；
2) it operates: obtained ingot casting is placed in resistance furnace, keep the temperature 12 hours in 400, then be warming up to 480 heat preservation 30min,
Hardening.
Step 5: ausrolling
450 DEG C~460 DEG C of slab heating temperature, 450 DEG C~460 DEG C of rolling mill roll temperature, pass reduction 3%~5%,
The thin plate with a thickness of 0.55mm is made.
Step 6: cold rolling
The control of cold rolling pass working modulus is made annealing treatment after 3%~5%, cold rolling, and annealing temperature is 460 DEG C, heat preservation
2h, to eliminate processing hardening.Cold rolling general working rate is 12% three times, obtains with a thickness of 0.03mm foil-like aluminium alloy brazing filler metal, contains Cu
22wt%, Si 6wt%, Ni 2.5wt%, Mg 0.8wt%, Ti 0.1wt%, Bi 0.2wt%, aluminium surplus.
Foil-shaped brazing material differential thermal analysis curve obtained is shown in Figure of description 1, and wherein Te is the solidus temperature of brazing filler metal alloy
496 DEG C, Tf is 515 DEG C of liquidus temperature of brazing filler metal alloy.
Embodiment 2 prepares Al-Cu-Si-Ni-Mg-Ti-Bi acieral state foil-shaped brazing material (two)
Step 1: ingredient
Take Al-Cu5028.5kg, Al-Si3017.5kg, Al-Ti50.75kg, aluminium 26.6kg, nickel 0.75kg, magnesium
0.75kg, bismuth 0.15kg.
Step 2: alloy casting
1) equipment: 150kg intermediate frequency furnace；
2) mold: Φ 80 × 300mm water cooling punching block；
3) ingredient: adding return material must not exceed the 30% of furnace volume；
4) operate: fine aluminium is put into the graphite crucible of intermediate frequency furnace, heat up, after aluminium ingot all fusing after, successively plus
Enter Al-Cu, Al-Si, Al-Ti intermediate alloy and pure nickel band, after intermediate alloy and nickel are all melting down, is warming up to 780 DEG C, heat preservation
Carbon trichloride indentation aluminium alloy bottom stirring is de-gassed, slag making with graphite cover, skims and finish, spread a little refining by 12min
Agent, refining agent select potassium fluoroaluminate, remove surface scum, are warming up to 680 DEG C, add magnesium and bismuth, are sufficiently stirred, are cast
Ingot.
Step 3: centrifugal casting
1) equipment: centrifugal casting furnace；
2) mold: 10 × 200 × 300mm water cooling punching block；
Solder ingot casting after founding is crushed, is put into centrifugal casting furnace in graphite crucible, is melted under Ar gas shielded, it is complete
It is warming up to 660 DEG C after running down, thin plate is cast using centrifugally cast mode, with a thickness of 2.5mm.
Step 4: super plasticized processing
1) equipment: resistance furnace；
2) it operates: obtained ingot casting is placed in resistance furnace, keep the temperature 12 hours in 420 DEG C, then be warming up to 485 DEG C of heat preservations
30min, hardening.
Step 5: ausrolling
450 DEG C~460 DEG C of slab heating temperature, 450 DEG C~460 DEG C of rolling mill roll temperature, pass reduction 3%~5%,
The thin plate with a thickness of 0.6mm is made.
Step 6: cold rolling
The control of cold rolling pass working modulus is made annealing treatment after 3%~5%, cold rolling, and annealing temperature is 440 DEG C, heat preservation
2h, to eliminate processing hardening.Cold rolling general working rate is 15 three times, obtains with a thickness of 0.05mm foil-like aluminium alloy brazing filler metal, contains Cu
19wt%, Si 7wt%, Ni 1wt%, Mg 1wt%, Ti 0.05wt%, Bi 0.2wt%, aluminium surplus.
Embodiment 3 prepares Al-Cu-Si-Ni-Mg-Ti-Bi acieral state foil-shaped brazing material (three)
Step 1: ingredient
Take Al-Cu5040kg, Al-Si3018.33kg, Al-Ti53kg, aluminium 36.02kg, nickel 2kg, magnesium 0.5kg, bismuth
0.15kg。
Step 2: alloy casting
1) equipment: 150kg intermediate frequency furnace；
2) mold: Φ 80 × 300mm water cooling punching block；
3) ingredient: adding return material must not exceed the 30% of furnace volume；
4) operate: fine aluminium is put into the graphite crucible of intermediate frequency furnace, heat up, after aluminium ingot all fusing after, successively plus
Enter Al-Cu, Al-Si, Al-Ti intermediate alloy and pure nickel band, after intermediate alloy and nickel are all melting down, is warming up to 800 DEG C, heat preservation
Carbon trichloride indentation aluminium alloy bottom stirring is de-gassed, slag making with graphite cover, skims and finish, spread a little refining by 10min
Agent, refining agent select potassium fluoroaluminate, remove surface scum, are warming up to 670 DEG C, add magnesium and bismuth, are sufficiently stirred, are cast
Ingot.
Step 3: centrifugal casting
1) equipment: centrifugal casting furnace；
2) mold: 10 × 200 × 300mm water cooling punching block；
Solder ingot casting after founding is crushed, is put into centrifugal casting furnace in graphite crucible, is melted under Ar gas shielded, it is complete
It is warming up to 700 DEG C after running down, thin plate is cast using centrifugally cast mode, with a thickness of 1.5mm.
Step 4: super plasticized processing
1) equipment: resistance furnace；
2) it operates: obtained ingot casting is placed in resistance furnace, keep the temperature 12 hours in 400, then be warming up to 480 heat preservation 30min,
Hardening.
Step 5: ausrolling
450 DEG C~460 DEG C of slab heating temperature, 450 DEG C~460 DEG C of rolling mill roll temperature, pass reduction 3%~5%,
The thin plate with a thickness of 0.5mm is made.
Step 6: cold rolling
The control of cold rolling pass working modulus is made annealing treatment after 3%~5%, cold rolling, and annealing temperature is 450 DEG C, heat preservation
1.5h, to eliminate processing hardening.Cold rolling general working rate is 10% three times, obtains with a thickness of 0.08mm foil-like aluminium alloy brazing filler metal, contains
Cu 20wt%, Si 5.5wt%, Ni 2wt%, Mg 0.5wt%, Ti 0.15wt%, Bi 0.15wt%, aluminium surplus.
Embodiment 4 prepares Al-Cu-Si-Ni-Mg-Ti-Bi acieral state foil-shaped brazing material (four)
Step 1: ingredient
Take Al-Cu5048kg, Al-Si3020kg, Al-Ti54kg, aluminium 23.15kg, nickel 4kg, magnesium 0.75kg, bismuth 0.1kg.
Step 2: alloy casting
1) equipment: 150kg intermediate frequency furnace；
2) mold: Φ 80 × 300mm water cooling punching block；
3) ingredient: adding return material must not exceed the 30% of furnace volume；
4) operate: fine aluminium is put into the graphite crucible of intermediate frequency furnace, heat up, after aluminium ingot all fusing after, successively plus
Enter Al-Cu, Al-Si, Al-Ti intermediate alloy and pure nickel band, after intermediate alloy and nickel are all melting down, is warming up to 775 DEG C, heat preservation
Carbon trichloride indentation aluminium alloy bottom stirring is de-gassed, slag making with graphite cover, skims and finish, spread a little refining by 12min
Agent, refining agent select potassium fluoroaluminate, remove surface scum, are warming up to 675 DEG C, add magnesium and bismuth, are sufficiently stirred, are cast
Ingot.
Step 3: centrifugal casting
1) equipment: centrifugal casting furnace；
2) mold: 10 × 200 × 300mm water cooling punching block；
Solder ingot casting after founding is crushed, is put into centrifugal casting furnace in graphite crucible, is melted under Ar gas shielded, it is complete
It is warming up to 675 DEG C after running down, thin plate is cast using centrifugally cast mode, with a thickness of 2.25mm.
Step 4: super plasticized processing
1) equipment: resistance furnace；
2) it operates: obtained ingot casting is placed in resistance furnace, keep the temperature 12 hours in 415 DEG C, then be warming up to 485 DEG C of heat preservations
30min, hardening.
Step 5: ausrolling
450 DEG C~460 DEG C of slab heating temperature, 450 DEG C~460 DEG C of rolling mill roll temperature, pass reduction 3%~5%,
The thin plate with a thickness of 0.65mm is made.
Step 6: cold rolling
The control of cold rolling pass working modulus is made annealing treatment after 3%~5%, cold rolling, and annealing temperature is 425 DEG C, heat preservation
2h, to eliminate processing hardening.Cold rolling general working rate is 12% three times, obtains with a thickness of 0.10mm foil-like aluminium alloy brazing filler metal, contains Cu
24wt%, Si 6wt%, Ni 4wt%, Mg 0.75wt%, Ti 0.2wt%, Bi 0.1wt%, aluminium surplus.
5 performance test of embodiment
Foil-shaped brazing material prepared by embodiment 1, embodiment 2, embodiment 3, embodiment 4 is used for physical testing respectively and aluminium closes
Golden vacuum brazing test, obtains test data and is shown in Table 1.
Table 1
Comparative example 1
(1) use preparation method identical with 2 step 1 of embodiment and step 2, only in step 1 metal proportion according to
The ratio of Al-22Cu-6Si-2Ni-Mg-0.1Ti-0.2Bi obtains aluminium alloy cast ingot.
(2) use preparation method identical with 2 step 1 of embodiment and step 2, only in step 1 metal proportion according to
The ratio of Al-22Cu-6Si-Mg-0.1Ti-0.2Bi does not add nickel in solder, obtains aluminium alloy cast ingot.
It is sampled respectively in the same position of above-mentioned two block castings ingot, using Observer Al metallography microscope sem observation
Ingot casting microscopic structure.As a result as shown in Figures 2 and 3, white area is CuAl in Metallograph2Intermetallic compound.Fig. 3
Middle aluminium base solder does not add Ni element, obtains in ingot casting microscopic structure and is distributed a large amount of CuAl2Intermetallic compound is hard crisp
Property phase, form be herring-bone form, be difficult to be crushed, and direction is any, process in the operation of rolling of foil, it is easy to crack.
And aluminium base solder is added to Ni element in Fig. 2, so that the CuAl in ingot casting2Intermetallic compound content reduces, due to Ni element
In the presence of CuAl2Morphology of intermetallic compound is that ellipse is blocky, and rolling is easy to be crushed when processing, therefore the opposite appearance of Foil strip rolling
Easily.It is compared from the ingot structure metallograph of Fig. 2 and Fig. 3, aluminium base solder adds Ni element, can effectively change in solder
CuAl2The form of intermetallic compound reduces solder embrittlement, improves the processing performance of solder.
Only enumerated in above-described embodiment Al-Cu-Si-Ni-Mg-Ti-Bi acieral state foil-shaped brazing material of the present invention and its
The embodiment of preparation method part, in the technical solution of aforementioned present invention: copper in the alloy compositions, silicon, nickel, magnesium contain
Amount within the specified scope can unrestricted choice, will not enumerate herein, therefore above illustrate that included technical solution should be regarded as
It is illustrative, rather than the protection scope to limit the present patent application patent.
Claims (9)
1. a kind of A1-Cu-Si-Ni-Mg-Ti-Bi acieral state solder, which is characterized in that the solder by following content at
It is grouped as: 5~7wt% of Cu 15~25wt%, Si, Ni 1~5wt%, Mg 0.3~1.Owt%, Ti 0.05~
0.2wt%, Bi 0.1~0.3wt%, Al surplus.
2. Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder as described in claim 1, which is characterized in that the solder
At being grouped as are as follows: 18~22wt% of Cu, 5~7wt% of Si, 1.5~2.5wt% of Ni, Mg 0.3~1wt%, Ti 0.1~
0.2wt%, Bi 0.2~0.3wt%, Al surplus.
3. Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder as claimed in claim 1 or 2, which is characterized in that described
Solder is foil-shaped brazing material, solder with a thickness of 0.03~0.15mm.
4. a kind of preparation method of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder, which is characterized in that this method uses
The step of " the super plasticized processing-ausrolling-cold rolling of founding-centrifugal casting-", concrete operations are as follows:
I. stock up: the purity of aluminium is greater than 99.9%, and copper selects oxygen-free copper, and the purity of silicon is greater than 99.99%, and the purity of nickel is greater than
99.9%, the purity of magnesium is greater than 99.99%, and the purity of titanium is greater than 99.99%, and the purity of bismuth is greater than 99.99%；It is wanted according to right
Each component mass percent described in asking 1 or 2 weighs raw material；
II. intermediate alloy is prepared:
(I) aluminium ingot is added into the graphite crucible of intermediate frequency furnace, heating is added copper ingot, rises to furnace temperature after aluminium ingot fusing
It 750~800 DEG C, is sufficiently stirred, after copper ingot is all melting down, ingot casting, obtains in Al-Cu by 700~750 DEG C of alloy casting temperature
Between alloy；
(II) aluminium ingot is added into the graphite crucible of intermediate frequency furnace, heating makes furnace temperature rise to 800~850 after aluminium ingot fusing
DEG C, polysilicon is pressed into molten aluminum, after polysilicon is all melting down, in 800~850 DEG C of 10~15min of heat preservation, is sufficiently stirred, is cast
Ingot, obtains Al-Si intermediate alloy by 850~900 DEG C of alloy casting temperature；
(III) be added aluminium ingot into the graphite crucible of intermediate frequency furnace, heating after aluminium ingot fusing, make furnace temperature rise to 1000~
1050 DEG C, pure titanium is added, after titanium is all melting down, in 1000~1050 DEG C of 10~15min of heat preservation, is sufficiently stirred, ingot casting, alloy
1050~1100 DEG C of cast temperature, obtain Al-Ti intermediate alloy；
III. alloy casting: fine aluminium is put into the graphite crucible of intermediate frequency furnace, is heated up, after aluminium ingot all fusing, successively
Al-Cu, Al-Si, Al-Ti intermediate alloy and pure nickel band is added, after intermediate alloy and nickel are all melting down, is warming up to 750~800
DEG C, 10~15min is kept the temperature, carbon trichloride indentation aluminium alloy bottom stirring is de-gassed with graphite cover, slag making, is skimmed and finish,
A little refining agent is spread, refining agent selects potassium fluoroaluminate, removes surface scum, is warming up to 650~700 DEG C, adds magnesium and bismuth, sufficiently
Stirring, casting obtain ingot casting；
IV. centrifugal casting: the solder ingot casting after founding is crushed, and is put into centrifugal casting furnace in graphite crucible, in Ar gas shielded
Lower fusing, is warming up to 650~700 DEG C after being completely melt, the thin plate of 1.5~2.5mm thickness is cast using centrifugally cast mode；
V. super plasticized processing: the obtained thin plate of step IV is placed in resistance furnace, keeps the temperature 12~16 hours in 400 DEG C~420 DEG C,
It is warming up to 480 DEG C~490 DEG C 30~45min of heat preservation, hardening again；
VI. ausrolling: 450 DEG C~460 DEG C of slab heating temperature that step V is obtained, rolling mill roll temperature 450 DEG C~460
DEG C, ausrolling is carried out, pass reduction 3%~5% obtains the band of 0.5~0.7mm thickness；
VII. cold rolling: carrying out cold rolling for the band after ausrolling, and the temperature of cold rolling is 5 DEG C~50 DEG C, is then carried out
Annealing, annealing temperature are 420~450 DEG C, keep the temperature 1.5~2h；Multi-pass cold rolling is until obtain the thickness needed.
5. preparation method as claimed in claim 4, which is characterized in that copper contains in Al-Cu intermediate alloy in the step II
Amount is 50wt%, and the content of silicon is 30wt% in Al-Si intermediate alloy, and the content of titanium is 5wt% in Al-Ti intermediate alloy.
6. preparation method as claimed in claim 4, which is characterized in that the dosage of carbon trichloride is furnace volume in the step III
0.3~0.4wt%, the dosage of refining agent is 0.2~0.3wt% of furnace volume.
7. preparation method as claimed in claim 4, which is characterized in that the control of cold rolling pass working modulus exists in the step VII
3%~5%, cold rolling general working rate is 9%~15%.
8. a kind of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder, which is characterized in that it is using in claim 4-7
The preparation of any one the method.
9. Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder described in any one of claim 1-3 or 8 3A21,
Application in the aluminium alloy low temp of 2A50,6063 and 6061 or classification vacuum brazing and aluminum copper dissimilar metal vacuum brazing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018107609983 | 2018-07-11 | ||
| CN201810760998 | 2018-07-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109465563A true CN109465563A (en) | 2019-03-15 |
| CN109465563B CN109465563B (en) | 2022-01-04 |
Family
ID=65666349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811274103.1A Active CN109465563B (en) | 2018-07-11 | 2018-10-29 | Al-Cu-Si-Ni-Mg-Ti-Bi aluminum-based alloy solder and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109465563B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112338389A (en) * | 2020-10-27 | 2021-02-09 | 国网河南省电力公司电力科学研究院 | Laminated strip-shaped self-brazing solder for aluminum copper brazing and preparation method thereof |
| CN113020838A (en) * | 2021-04-06 | 2021-06-25 | 南昌航空大学 | Aluminum-based brazing filler metal, and preparation method and application thereof |
| CN114393344A (en) * | 2021-12-30 | 2022-04-26 | 无锡日月合金材料有限公司 | Brazing filler metal for multistage brazing of electric vacuum device and preparation method thereof |
| CN115106676A (en) * | 2022-05-23 | 2022-09-27 | 航天科工防御技术研究试验中心 | Aluminum alloy brazing filler metal wire and preparation method thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0623583A (en) * | 1992-06-26 | 1994-02-01 | Nhk Spring Co Ltd | Brazing material for aluminium alloy and brazing joined body |
| CN1088496A (en) * | 1992-12-19 | 1994-06-29 | 中国石油化工总公司发展部 | Electromagnetic certrifugal casting technology |
| DE4424718C2 (en) * | 1994-07-13 | 1997-04-03 | Daimler Benz Aerospace Ag | Use of a solder for an aluminum material |
| CN102513721A (en) * | 2011-12-22 | 2012-06-27 | 浙江大学 | High-strength aluminum alloy solder for brazing at medium temperature and preparation method thereof |
| CN103567655A (en) * | 2012-07-26 | 2014-02-12 | 北京有色金属与稀土应用研究所 | Al-Si-Cu-Mg aluminum-base alloy foil solder and preparation method thereof |
| CN103882271A (en) * | 2014-03-28 | 2014-06-25 | 合肥工业大学 | Al-Mg-Si-Cu alloy material with high strength and high elongation and preparation method thereof |
| CN104191104A (en) * | 2014-08-28 | 2014-12-10 | 青岛永通电梯工程有限公司 | Low-temperature brazing filler metal for Al-Si-Mg system aluminum alloy brazing |
| CN104561639A (en) * | 2014-12-26 | 2015-04-29 | 北京有色金属与稀土应用研究所 | Gold alloy target and preparation method thereof |
| CN104858566A (en) * | 2015-06-09 | 2015-08-26 | 中国电子科技集团公司第十四研究所 | Aluminum-base low-melting-point vacuum brazing filler and preparation method thereof |
| CN105364335A (en) * | 2015-12-15 | 2016-03-02 | 北京有色金属与稀土应用研究所 | Al-Ag-Cu-Mg aluminium base alloy-state brazing filler metal and preparation method thereof |
| CN106312363A (en) * | 2016-08-30 | 2017-01-11 | 北京有色金属与稀土应用研究所 | Al-Ag-Ge-Mg-Ti aluminum-based medium temperature vacuum brazing filler metal and preparation method thereof |
| CN107058925A (en) * | 2017-06-08 | 2017-08-18 | 安阳工学院 | It is a kind of to improve the superplastic method of allumen by being heat-treated |
-
2018
- 2018-10-29 CN CN201811274103.1A patent/CN109465563B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0623583A (en) * | 1992-06-26 | 1994-02-01 | Nhk Spring Co Ltd | Brazing material for aluminium alloy and brazing joined body |
| CN1088496A (en) * | 1992-12-19 | 1994-06-29 | 中国石油化工总公司发展部 | Electromagnetic certrifugal casting technology |
| DE4424718C2 (en) * | 1994-07-13 | 1997-04-03 | Daimler Benz Aerospace Ag | Use of a solder for an aluminum material |
| CN102513721A (en) * | 2011-12-22 | 2012-06-27 | 浙江大学 | High-strength aluminum alloy solder for brazing at medium temperature and preparation method thereof |
| CN103567655A (en) * | 2012-07-26 | 2014-02-12 | 北京有色金属与稀土应用研究所 | Al-Si-Cu-Mg aluminum-base alloy foil solder and preparation method thereof |
| CN103882271A (en) * | 2014-03-28 | 2014-06-25 | 合肥工业大学 | Al-Mg-Si-Cu alloy material with high strength and high elongation and preparation method thereof |
| CN104191104A (en) * | 2014-08-28 | 2014-12-10 | 青岛永通电梯工程有限公司 | Low-temperature brazing filler metal for Al-Si-Mg system aluminum alloy brazing |
| CN104561639A (en) * | 2014-12-26 | 2015-04-29 | 北京有色金属与稀土应用研究所 | Gold alloy target and preparation method thereof |
| CN104858566A (en) * | 2015-06-09 | 2015-08-26 | 中国电子科技集团公司第十四研究所 | Aluminum-base low-melting-point vacuum brazing filler and preparation method thereof |
| CN105364335A (en) * | 2015-12-15 | 2016-03-02 | 北京有色金属与稀土应用研究所 | Al-Ag-Cu-Mg aluminium base alloy-state brazing filler metal and preparation method thereof |
| CN106312363A (en) * | 2016-08-30 | 2017-01-11 | 北京有色金属与稀土应用研究所 | Al-Ag-Ge-Mg-Ti aluminum-based medium temperature vacuum brazing filler metal and preparation method thereof |
| CN107058925A (en) * | 2017-06-08 | 2017-08-18 | 安阳工学院 | It is a kind of to improve the superplastic method of allumen by being heat-treated |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112338389A (en) * | 2020-10-27 | 2021-02-09 | 国网河南省电力公司电力科学研究院 | Laminated strip-shaped self-brazing solder for aluminum copper brazing and preparation method thereof |
| CN113020838A (en) * | 2021-04-06 | 2021-06-25 | 南昌航空大学 | Aluminum-based brazing filler metal, and preparation method and application thereof |
| CN114393344A (en) * | 2021-12-30 | 2022-04-26 | 无锡日月合金材料有限公司 | Brazing filler metal for multistage brazing of electric vacuum device and preparation method thereof |
| CN114393344B (en) * | 2021-12-30 | 2024-05-14 | 无锡日月合金材料有限公司 | Solder for multistage brazing of electric vacuum device and preparation method thereof |
| CN115106676A (en) * | 2022-05-23 | 2022-09-27 | 航天科工防御技术研究试验中心 | Aluminum alloy brazing filler metal wire and preparation method thereof |
| CN115106676B (en) * | 2022-05-23 | 2023-09-01 | 航天科工防御技术研究试验中心 | Aluminum alloy solder wire and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109465563B (en) | 2022-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109465563A (en) | A kind of Al-Cu-Si-Ni-Mg-Ti-Bi acieral state solder and preparation method thereof | |
| Lin et al. | Phase equilibria and solidification properties of Sn-Cu-Ni alloys | |
| Lee et al. | Interfacial properties of Zn–Sn alloys as high temperature lead-free solder on Cu substrate | |
| EP0166144B1 (en) | Homogeneous low melting temperatures brazing filler metal for joining ferrous and non-ferrous alloys | |
| US8956474B2 (en) | Pressure resistant and corrosion resistant copper alloy, brazed structure, and method of manufacturing brazed structure | |
| CN109518041B (en) | It is a kind of while improving that pack alloy is thermally conductive and the compounding method of mechanical property | |
| KR101831505B1 (en) | Clad sheet alloys for brazing applications | |
| CN105364335A (en) | Al-Ag-Cu-Mg aluminium base alloy-state brazing filler metal and preparation method thereof | |
| CN110666395A (en) | Brazing filler metal for brazing titanium-containing material, preparation method and brazing method | |
| CN108300884B (en) | A kind of hypoeutectic Al-Mg2The rotten and thinning method of Si alloy | |
| CN109352208A (en) | A kind of Sn-Bi system Low-silver lead-free solder alloy and preparation method thereof | |
| Niu et al. | Effects of germanium additions on microstructures and properties of Al–Si filler metals for brazing aluminum | |
| CN116377289A (en) | High pressure cast aluminum alloy suitable for brazing | |
| CN116377288A (en) | High pressure casting aluminum alloy for brazing | |
| CN110747369A (en) | Lead-free-cutting silicon-magnesium-calcium brass alloy and preparation method thereof | |
| CN106624441A (en) | High-strength aluminum-base brazing filler metal and preparing method thereof | |
| CN106312363B (en) | A kind of Al-Cu-Ag-Ge-Mg-Ti aluminium base medium temperature vacuum brazing material and preparation method thereof | |
| Lin et al. | Liquidus projection and solidification of the Sn-In-Cu ternary alloys | |
| CN116377262A (en) | Manufacturing method of high-pressure casting aluminum alloy for brazing | |
| CN116640943A (en) | Manufacturing method of high-pressure casting aluminum alloy suitable for brazing | |
| EP4269641A1 (en) | Powdered material with high heat conductivity | |
| US3948432A (en) | Brazing preforms and method of brazing | |
| CN113897519A (en) | Al-Mn-Mg-Si-Ti-Sn casting alloy for realizing vacuum brazing by vacuum die casting and preparation method thereof | |
| Song et al. | Double peritectic behavior of Ag–Zn intermetallics in Sn-Zn-Ag solder alloys | |
| Lee et al. | Experimental investigation of Zr-rich Zr–Zr2Ni–(Zr, Ti) 2Ni ternary eutectic system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |