CN106498202B - A kind of aluminium scrap renovation process of wrought aluminium alloy - Google Patents
A kind of aluminium scrap renovation process of wrought aluminium alloy Download PDFInfo
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- CN106498202B CN106498202B CN201610902381.1A CN201610902381A CN106498202B CN 106498202 B CN106498202 B CN 106498202B CN 201610902381 A CN201610902381 A CN 201610902381A CN 106498202 B CN106498202 B CN 106498202B
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 124
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 97
- 239000004411 aluminium Substances 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000009418 renovation Methods 0.000 title claims abstract description 11
- 239000002699 waste material Substances 0.000 claims abstract description 91
- 239000000203 mixture Substances 0.000 claims abstract description 53
- 239000002994 raw material Substances 0.000 claims abstract description 22
- 239000005030 aluminium foil Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 19
- 229910052710 silicon Inorganic materials 0.000 claims description 47
- 229910052725 zinc Inorganic materials 0.000 claims description 45
- 229910052742 iron Inorganic materials 0.000 claims description 44
- 229910052804 chromium Inorganic materials 0.000 claims description 42
- 239000012535 impurity Substances 0.000 claims description 40
- 239000000126 substance Substances 0.000 claims description 40
- 229910052802 copper Inorganic materials 0.000 claims description 37
- 229910052748 manganese Inorganic materials 0.000 claims description 35
- 229910052749 magnesium Inorganic materials 0.000 claims description 17
- 238000007670 refining Methods 0.000 claims description 16
- 238000009749 continuous casting Methods 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000006025 fining agent Substances 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000007872 degassing Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000010791 quenching Methods 0.000 claims description 7
- 230000000171 quenching effect Effects 0.000 claims description 7
- 239000002893 slag Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 230000008929 regeneration Effects 0.000 abstract description 5
- 238000011069 regeneration method Methods 0.000 abstract description 5
- 239000011777 magnesium Substances 0.000 description 39
- 239000011701 zinc Substances 0.000 description 39
- 239000010949 copper Substances 0.000 description 38
- 239000011572 manganese Substances 0.000 description 36
- 239000007769 metal material Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910001610 cryolite Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- 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
-
- 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
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- 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)
- Manufacture And Refinement Of Metals (AREA)
- Conductive Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
A kind of aluminium scrap renovation process of wrought aluminium alloy, the composition of aluminium scrap raw material and mass percent are used in this method：19~52% waste and old aluminium door and window, 7~26% waste and old aluminum easy open can, 11~39% waste aluminum edges of boards corner material, 9~37% waste and old aluminium skimmings, 5~16% waste aluminium alloy cable, surplus is old and useless aluminium foil.The present invention is using aluminium scrap as raw material, by the wrought aluminium alloy for the composition Direct Regeneration high added value for optimizing aluminium scrap raw material, improve the use value of aluminium scrap, reduce the production cost of wrought aluminium alloy, the wrought aluminium alloy of production such as is suitable for extruding, rolls, forges at a variety of pressure processing crafts, available for build, the field such as electronic apparatus, electric wire, automobile, ship, Aero-Space, weaponry, have broad application prospects.
Description
Technical field
The invention belongs to field of alloy preparation technology, a kind of aluminium scrap renovation process of wrought aluminium alloy is specifically related to.
Background technology
Wrought aluminium alloy typically refers to that plasticity is higher, suitable for extruding, rolling, forging, punching press, the aluminium of the pressure processing such as bending
Alloy.Wrought aluminium alloy is current most widely used a kind of non-ferrous metal structural material, be largely used to building, electronic apparatus,
The fields such as electric wire, automobile, ship, mechanized equipment, Aero-Space, weaponry.With the hair at full speed of China's economic society
Exhibition, it is increasing to the demand of wrought aluminium alloy.
Literature retrieval is found, prior art mainly using primary aluminium as raw material, adds during melting and casting
The alloying elements such as copper, magnesium, silicon, manganese, zinc prepare wrought aluminium alloy.It is well known that primary aluminium is obtained by alumina eltrolysis, and
The electrolysis of aluminum oxide belongs to high energy consumption industry, exploitation and alumina producing along with bauxite resource, causes the production of primary aluminium
Need to consume the substantial amounts of energy, while can also discharge substantial amounts of carbon dioxide, dust and solid waste, cause serious environment
Pollution, the production cost for ultimately resulting in wrought aluminium alloy are higher.
China is the production and consumption big country of aluminium and aluminium alloy, and substantial amounts of aluminium scrap is endlessly produced per annual meeting.Utilize
Aluminium scrap carrys out secondary aluminium alloy, can significantly reduce the production cost of aluminium alloy, and reduces consumption and carbon dioxide, the powder of the energy
The discharge of dirt and solid waste.But the most aluminium scrap in current China is mainly used in regenerating low value-added cast aluminium alloy gold,
The alloying elements such as the copper that contains in aluminium scrap, magnesium, silicon, manganese, zinc are utilized effectively, and cause the huge waste of resource.Cause
This, using the wrought aluminium alloy of aluminium scrap Direct Regeneration high added value, for improving the use value of aluminium scrap, reducing wrought aluminium alloy
Production cost all have and be of great significance.
The content of the invention
It is an object of the invention to problem and shortage be present for above-mentioned, there is provided a kind of aluminium scrap regeneration side of wrought aluminium alloy
Method, the wrought aluminium alloy using aluminium scrap as main raw material(s) Direct Regeneration high added value, the use value of aluminium scrap is improved, reduces deformation
The production cost of aluminium alloy.
The technical proposal of the invention is realized in this way：
The aluminium scrap renovation process of wrought aluminium alloy of the present invention, is characterized in：Aluminium scrap raw material used in this method
Composition and mass percent are：19~52% waste and old aluminium door and window, 7~26% waste and old aluminum easy open can, 11~39% waste and old aluminium sheet
Leftover pieces, 9~37% waste and old aluminium skimmings, 5~16% waste aluminium alloy cable, surplus is old and useless aluminium foil；This method includes following
Step：
Step 1：Above-mentioned waste and old aluminium door and window, waste and old aluminum easy open can, waste aluminum edges of boards corner material, waste and old aluminium skimmings, waste aluminum are closed
Golden cable and old and useless aluminium foil are fused into aluminum alloy melt in 700~780 DEG C of heating；
Step 2：The fining agent and 0.3~1.5% for accounting for that aluminium scrap raw material gross mass percentage is 0.15~0.3% is used respectively
Refining agent to aluminum alloy melt carry out micronization processes and refining degasification remove Slag treatment；
Step 3：By the aluminum alloy melt after processing under the conditions of 660~760 DEG C semi-continuous casting or continuous casting and rolling or continuous casting
Tandem rolling is into wrought aluminium alloy；
Step 4：Wrought aluminium alloy is dissolved 1~6 hour at 485~530 DEG C, in 175~210 DEG C of timeliness 12 after water quenching
~48 hours, satisfactory wrought aluminium alloy is obtained after furnace cooling.
Wherein, the chemical composition of the waste and old aluminium door and window and mass percent are：Mg 0.6~1.2%, Si 0.4~
1.8%, Mn≤1.0%, Cu≤0.6%, Fe≤0.7%, Cr≤0.35%, Zn≤0.3%, Ti≤0.2%, surplus be Al and
Inevitable impurity.
The chemical composition and mass percent of the waste and old aluminum easy open can be：Mn 0.8~1.5%, Mg≤1.0%, Si≤
0.6%, Cu≤0.3%, Fe≤0.8%, Cr≤0.2%, Zn≤0.4%, Ti≤0.1%, surplus be Al and inevitably it is miscellaneous
Matter.
The chemical composition and mass percent of the waste aluminum edges of boards corner material be：Mg 3.5~5.5%, Mn 0.6~1.2%,
Si≤0.4%, Cu≤0.2%, Fe≤0.5%, Cr≤0.35%, Zn≤0.35%, Ti≤0.1%, surplus are Al and can not
The impurity avoided.
The chemical composition and mass percent of the waste and old aluminium skimmings be：Cu 3.5~6.5%, Zn 4.5~8.5%, Mg 1.5
~2.5%, Mn≤0.6%, Si≤0.35%, Fe≤0.7%, Cr≤0.5%, Ti≤0.2%, surplus is for Al and unavoidably
Impurity.
The chemical composition and mass percent of the waste aluminium alloy cable be：Mg≤0.9%, Si≤0.6%, Mn≤
0.5%, Cu≤0.35%, Fe≤0.6%, Cr≤0.3%, Zn≤0.2%, Ti≤0.1%, surplus is for Al and inevitably
Impurity.
The chemical composition and mass percent of the old and useless aluminium foil be：Mg≤0.15%, Si≤0.15%, Mn≤
0.05%, Cu≤0.03%, Fe≤0.3%, Cr≤0.01%, Zn≤0.01%, Ti≤0.02%, surplus are Al and can not kept away
The impurity exempted from.
The chemical composition and mass percent of the fining agent be：Ti 4.5~5.5%, B 0.8~1.2%, Fe≤
0.2%, Si≤0.2%, surplus are Al and inevitable impurity.
The composition of the refining agent forms and mass percent is：NaCl 20~21%, Na2CO314~15%, KCl 18
~19%, MgC1212~13%, Na3AlF615~16%, NaF 13~14%, surplus K2CO3。
The present invention compared with prior art, has advantages below：
The present invention is with waste and old aluminium door and window, waste and old aluminum easy open can, waste aluminum edges of boards corner material, waste and old aluminium skimmings, waste aluminium alloy electricity
Cable and old and useless aluminium foil are raw material, the wrought aluminium alloy of the composition Direct Regeneration high added value by optimizing aluminium scrap raw material.With
Prior art is compared, all aluminium scraps of raw materials of the present invention, both use primary aluminium, also without do not add copper, magnesium, silicon,
The alloying elements such as manganese, zinc, therefore there is relatively low production cost, lower than the production cost of prior art more than 35%.The present invention carries
The high use value of aluminium scrap, the wrought aluminium alloy of production have the advantages that plasticity is good, are suitable for extruding, roll, forge etc. and be more
Kind pressure processing craft, can be widely used for building, electronic apparatus, electric wire, automobile, ship, Aero-Space, weaponry etc.
Field, have broad application prospects.
Embodiment
Technical scheme is further described with reference to specific embodiment.
Embodiment 1
The composition and mass percent of aluminium scrap raw material be：52% waste and old aluminium door and window（Chemical composition and mass percent
For：Mg 1.2%, Si 0.9%, Mn 0.5%, Cu 0.3%, Fe 0.4%, Cr 0.35%, Zn 0.1%, Ti 0.15%, surplus Al
With inevitable impurity）, 21% waste and old aluminum easy open can（Chemical composition and mass percent are：Mn 0.8%, Mg 1.0%, Si
0.6%, Cu 0.2%, Fe 0.4%, Cr 0.1%, Zn 0.1%, Ti 0.05%, surplus are Al and inevitable impurity）, 12%
Waste aluminum edges of boards corner material（Chemical composition and mass percent are：Mg 3.5%, Mn 0.6%, Si 0.4%, Cu 0.1%, Fe
0.3%, Cr 0.05%, Zn 0.15%, Ti 0.05%, surplus are Al and inevitable impurity）, 9% waste and old aluminium skimmings（Chemistry into
Divide and mass percent is：Cu 3.5%, Zn 4.5%, Mg 1.5%, Mn 0.1%, Si 0.2%, Fe 0.5%, Cr 0.01%, Ti
0.1%, surplus is Al and inevitable impurity）, 5% waste aluminium alloy cable（Chemical composition and mass percent are：Mg
0.8%, Si 0.3%, Mn 0.2%, Cu 0.1%, Fe 0.6%, Cr 0.1%, Zn 0.1%, Ti 0.05%, surplus are Al and can not
The impurity avoided）, 1% old and useless aluminium foil（Chemical composition and mass percent are：Mg 0.1%, Si 0.1%, Mn 0.05%, Cu
0.01%, Fe 0.05%, Cr 0.001%, Zn 0.001%, Ti 0.005%, surplus are Al and inevitable impurity）.
The aluminium scrap renovation process of wrought aluminium alloy, is specifically comprised the steps of：
Step 1：By waste and old aluminium door and window, waste and old aluminum easy open can, waste aluminum edges of boards corner material, waste and old aluminium skimmings, waste aluminium alloy electricity
Cable and old and useless aluminium foil are fused into aluminum alloy melt in 700 DEG C of heating；
Step 2：The fining agent and 0.3% refining agent pair for accounting for that aluminium scrap raw material gross mass percentage is 0.15% are used respectively
Aluminum alloy melt carries out micronization processes and refining degasification removes Slag treatment；
Step 3：By aluminum alloy melt under the conditions of 660 DEG C semi-continuous casting into wrought aluminium alloy；
Step 4：Wrought aluminium alloy is dissolved 6 hours at 485 DEG C, in 175 DEG C of timeliness 48 hours, furnace cooling after water quenching
After obtain satisfactory wrought aluminium alloy.
By GB228-2010《Metal material stretching test》Standard, detected in DNS200 type Universal electrical cupping machines
The present embodiment wrought aluminium alloy, for its tensile strength in 327.2MPa, elongation has medium intensity and excellent 16.1%
Plasticity, it is suitable for extrusion process into architectural aluminum section, electronic apparatus and auto parts and components.
Embodiment 2
The composition and mass percent of aluminium scrap raw material be：19% waste and old aluminium door and window（Chemical composition and mass percent
For：Mg 1.2%, Si 1.8%, Mn 0.7%, Cu0.2%, Fe 0.3%, Cr 0.3%, Zn 0.1%, Ti 0.15%, surplus be Al and
Inevitable impurity）, 26% waste and old aluminum easy open can（Chemical composition and mass percent are：Mn 0.8%, Mg 0.5%, Si
0.3%, Cu 0.1%, Fe 0.45%, Cr 0.05%, Zn 0.2%, Ti 0.05%, surplus are Al and inevitable impurity）, 11%
Waste aluminum edges of boards corner material（Chemical composition and mass percent are：Mg 3.5%, Mn 0.7%, Si 0.2%, Cu 0.15%, Fe
0.25%, Cr 0.15%, Zn 0.2%, Ti 0.1%, surplus are Al and inevitable impurity）, 9% waste and old aluminium skimmings（Chemistry into
Divide and mass percent is：Cu 3.5%, Zn 4.5%, Mg 1.5%, Mn 0.1%, Si 0.3%, Fe 0.4%, Cr 0.3%, Ti
0.1%, surplus is Al and inevitable impurity）, 16% waste aluminium alloy cable（Chemical composition and mass percent are：Mg
0.8%, Si 0.4%, Mn 0.2%, Cu 0.15%, Fe 0.4%, Cr 0.1%, Zn 0.02%, Ti 0.15%, surplus is for Al and not
Evitable impurity）, 19% old and useless aluminium foil（Chemical composition and mass percent are：Mg 0.1%, Si 0.1%, Mn 0.01%,
Cu 0.02%, Fe 0.03%, Cr 0.01%, Zn 0.01%, Ti 0.01%, surplus are Al and inevitable impurity）.
The aluminium scrap renovation process of wrought aluminium alloy, is specifically comprised the steps of：
Step 1：By waste and old aluminium door and window, waste and old aluminum easy open can, waste aluminum edges of boards corner material, waste and old aluminium skimmings, waste aluminium alloy electricity
Cable and old and useless aluminium foil are fused into aluminum alloy melt in 720 DEG C of heating；
Step 2：Respectively with account for aluminium scrap raw material gross mass percentage be 0.2% fining agent and 0.6% refining agent to aluminium
Aluminium alloy carries out micronization processes and refining degasification removes Slag treatment；
Step 3：By aluminum alloy melt under the conditions of 680 DEG C continuous casting and rolling into wrought aluminium alloy；
Step 4：Wrought aluminium alloy is dissolved 3 hours at 495 DEG C, in 185 DEG C of timeliness 36 hours, furnace cooling after water quenching
After obtain satisfactory wrought aluminium alloy.
By GB228-2010《Metal material stretching test》Standard, detected in DNS200 type Universal electrical cupping machines
The present embodiment wrought aluminium alloy, for its tensile strength in 248.5MPa, elongation has medium intensity and excellent 21.4%
Plasticity, it is suitable for continuous casting and rolling manufacture aluminum alloy wire cable.
Embodiment 3
The composition and mass percent of aluminium scrap raw material be：24% waste and old aluminium door and window（Chemical composition and mass percent
For：Mg 1.2%, Si 1.1%, Mn 0.3%, Cu 0.4%, Fe 0.2%, Cr 0.3%, Zn 0.1%, Ti 0.1%, surplus be Al and
Inevitable impurity）, 9% waste and old aluminum easy open can（Chemical composition and mass percent are：Mn 0.8%, Mg 1.0%, Si
0.4%, Cu 0.1%, Fe 0.3%, Cr 0.15%, Zn 0.2%, Ti 0.01%, surplus are Al and inevitable impurity）, 39%
Waste aluminum edges of boards corner material（Chemical composition and mass percent are：Mg 5.5%, Mn 0.7%, Si 0.2%, Cu 0.1%, Fe
0.4%, Cr 0.15%, Zn 0.15%, Ti 0.04%, surplus are Al and inevitable impurity）, 9% waste and old aluminium skimmings（Chemistry into
Divide and mass percent is：Cu 3.9%, Zn 4.7%, Mg 2.5%, Mn 0.2%, Si 0.1%, Fe 0.25%, Cr 0.4%, Ti
0.15%, surplus is Al and inevitable impurity）, 7% waste aluminium alloy cable（Chemical composition and mass percent are：Mg
0.9%, Si 0.6%, Mn 0.1%, Cu 0.3%, Fe 0.25%, Cr 0.01%, Zn 0.05%, Ti 0.05%, surplus is for Al and not
Evitable impurity）, 12% old and useless aluminium foil（Chemical composition and mass percent are：Mg 0.15%, Si 0.15%, Mn
0.04%, Cu 0.02%, Fe 0.2%, Cr 0.01%, Zn 0.01%, Ti 0.01%, surplus are Al and inevitable impurity）.
The aluminium scrap renovation process of wrought aluminium alloy, is specifically comprised the steps of：
Step 1：By waste and old aluminium door and window, waste and old aluminum easy open can, waste aluminum edges of boards corner material, waste and old aluminium skimmings, waste aluminium alloy electricity
Cable and old and useless aluminium foil are fused into aluminum alloy melt in 740 DEG C of heating；
Step 2：Respectively with account for aluminium scrap raw material gross mass percentage be 0.2% fining agent and 0.9% refining agent to aluminium
Aluminium alloy carries out micronization processes and refining degasification removes Slag treatment；
Step 3：By aluminum alloy melt under the conditions of 720 DEG C continuous casting and rolling into wrought aluminium alloy；
Step 4：Wrought aluminium alloy is dissolved 3 hours at 505 DEG C, in 195 DEG C of timeliness 24 hours, furnace cooling after water quenching
After obtain satisfactory wrought aluminium alloy.
By GB228-2010《Metal material stretching test》Standard, detected in DNS200 type Universal electrical cupping machines
The present embodiment wrought aluminium alloy, in 465.1MPa, elongation has higher intensity and plasticity, fitted 13.7% its tensile strength
Together in casting or it is rolled into ship aluminum alloy plate materials.
Embodiment 4
The composition and mass percent of aluminium scrap raw material be：19% waste and old aluminium door and window（Chemical composition and mass percent
For：Mg 1.1%, Si 1.8%, Mn 0.7%, Cu 0.6%, Fe 0.4%, Cr 0.35%, Zn 0.3%, Ti 0.2%, surplus Al
With inevitable impurity）, 7% waste and old aluminum easy open can（Chemical composition and mass percent are：Mn 1.3%, Mg 0.8%, Si
0.6%, Cu 0.3%, Fe 0.5%, Cr 0.2%, Zn 0.35%, Ti 0.1%, surplus are Al and inevitable impurity）, 22%
Waste aluminum edges of boards corner material（Chemical composition and mass percent are：Mg 5.5%, Mn 1.1%, Si 0.1%, Cu 0.2%, Fe
0.2%, Cr 0.3%, Zn 0.35%, Ti 0.1%, surplus are Al and inevitable impurity）, 37% waste and old aluminium skimmings（Chemistry into
Divide and mass percent is：Cu 6.5%, Zn 8.5%, Mg 2.5%, Mn 0.2%, Si 0.3%, Fe 0.45%, Cr 0.5%, Ti
0.2%, surplus is Al and inevitable impurity）, 6% waste aluminium alloy cable（Chemical composition and mass percent are：Mg
0.9%, Si 0.6%, Mn 0.2%, Cu 0.3%, Fe 0.4%, Cr 0.3%, Zn 0.15%, Ti 0.1%, surplus are Al and can not
The impurity avoided）, 9% old and useless aluminium foil（Chemical composition and mass percent are：Mg 0.15%, Si 0.15%, Mn 0.04%, Cu
0.02%, Fe 0.3%, Cr 0.01%, Zn 0.01%, Ti 0.02%, surplus are Al and inevitable impurity）.
The aluminium scrap renovation process of wrought aluminium alloy, is specifically comprised the steps of：
Step 1：By waste and old aluminium door and window, waste and old aluminum easy open can, waste aluminum edges of boards corner material, waste and old aluminium skimmings, waste aluminium alloy electricity
Cable and old and useless aluminium foil are fused into aluminum alloy melt in 780 DEG C of heating；
Step 2：Respectively with account for aluminium scrap raw material gross mass percentage be 0.3% fining agent and 1.5% refining agent to aluminium
Aluminium alloy carries out micronization processes and refining degasification removes Slag treatment；
Step 3：By aluminum alloy melt under the conditions of 760 DEG C semi-continuous casting into wrought aluminium alloy；
Step 4：Wrought aluminium alloy is dissolved 1 hour at 530 DEG C, in 210 DEG C of timeliness 12 hours, furnace cooling after water quenching
After obtain satisfactory wrought aluminium alloy.
By GB228-2010《Metal material stretching test》Standard, detected in DNS200 type Universal electrical cupping machines
The present embodiment wrought aluminium alloy, for its tensile strength in 550.9MPa, elongation has the characteristics of intensity is high, plasticity is good 9.6%,
It is suitable for extruding or forges Aero-Space and weaponry structural member.
Embodiment 5
The composition and mass percent of aluminium scrap raw material be：19% waste and old aluminium door and window（Chemical composition and mass percent
For：Mg 0.6%, Si 0.4%, Mn 0.1%, Cu 0.05%, Fe 0.1%, Cr 0.05%, Zn 0.03%, Ti 0.05%, surplus are
Al and inevitable impurity）, 16% waste and old aluminum easy open can（Chemical composition and mass percent are：Mn 0.8%, Mg 0.3%,
Si 0.2%, Cu 0.1%, Fe 0.35%, Cr 0.05%, Zn 0.05%, Ti 0.03%, surplus be Al and inevitably it is miscellaneous
Matter）, 11% waste aluminum edges of boards corner material（Chemical composition and mass percent are：Mg 3.5%, Mn 0.6%, Si 0.2%, Cu
0.05%, Fe 0.2%, Cr 0.05%, Zn 0.15%, Ti 0.01%, surplus are Al and inevitable impurity）, 9% waste aluminum
Bits（Chemical composition and mass percent are：Cu 3.5%, Zn 4.5%, Mg 1.5%, Mn 0.2%, Si 0.15%, Fe 0.2%, Cr
0.3%, Ti 0.01%, surplus are Al and inevitable impurity）, 5% waste aluminium alloy cable（Chemical composition and quality percentage
Than for：Mg 0.4%, Si 0.2%, Mn 0.15%, Cu 0.15%, Fe 0.2%, Cr 0.1%, Zn 0.02%, Ti 0.01%, surplus
For Al and inevitable impurity）, 40% old and useless aluminium foil（Chemical composition and mass percent are：Mg 0.05%, Si 0.08%,
Mn 0.02%, Cu 0.01%, Fe 0.1%, Cr 0.001%, Zn 0.001%, Ti 0.01%, surplus be Al and inevitably it is miscellaneous
Matter）.
The aluminium scrap renovation process of wrought aluminium alloy, is specifically comprised the steps of：
Step 1：By waste and old aluminium door and window, waste and old aluminum easy open can, waste aluminum edges of boards corner material, waste and old aluminium skimmings, waste aluminium alloy electricity
Cable and old and useless aluminium foil are fused into aluminum alloy melt in 710 DEG C of heating；
Step 2：The fining agent and 1.2% refining agent pair for accounting for that aluminium scrap raw material gross mass percentage is 0.25% are used respectively
Aluminum alloy melt carries out micronization processes and refining degasification removes Slag treatment；
Step 3：By aluminum alloy melt under the conditions of 690 DEG C continuous casting and rolling into wrought aluminium alloy；
Step 4：Wrought aluminium alloy is dissolved 2 hours at 495 DEG C, in 190 DEG C of timeliness 18 hours, furnace cooling after water quenching
After obtain satisfactory wrought aluminium alloy.
By GB228-2010《Metal material stretching test》Standard, detected in DNS200 type Universal electrical cupping machines
The present embodiment wrought aluminium alloy, its tensile strength is in 131.6MPa, and elongation is 28.7%, although intensity is relatively low, plasticity pole
It is good, it is suitable for being rolled into aluminium alloy sheet or aluminium foil, for manufacturing pop can, packaging foil and capacitor aluminium foil etc..
Moreover, the chemical composition and mass percent of the fining agent used in the various embodiments described above for：Ti 4.5~5.5%,
B 0.8~1.2%, Fe≤0.2%, Si≤0.2%, surplus are Al and inevitable impurity.The composition composition and matter of refining agent
Measuring percentage is：NaCl 20~21%, Na2CO314~15%, KCl 18~19%, MgC1212~13%, Na3AlF615~
16%, NaF 13~14%, surplus K2CO3。
The present invention is described by embodiment, but is not limited the invention, with reference to description of the invention, institute
Other changes of disclosed embodiment, are such as readily apparent that, such change should belong to for the professional person of this area
Within the scope of the claims in the present invention limit.
Claims (1)
- A kind of 1. aluminium scrap renovation process of wrought aluminium alloy, it is characterised in that：The composition of aluminium scrap raw material and mass percent are used in this method：19~52% waste and old aluminium door and window, 7~26% it is waste and old Aluminum easy open can, 11~39% waste aluminum edges of boards corner material, 9~37% waste and old aluminium skimmings, 5~16% waste aluminium alloy cable, surplus For old and useless aluminium foil；The chemical composition and mass percent of the waste and old aluminium door and window be：Mg 0.6~1.2%, Si 0.4~1.8%, Mn≤ 1.0%, Cu≤0.6%, Fe≤0.7%, Cr≤0.35%, Zn≤0.3%, Ti≤0.2%, surplus is for Al and inevitably Impurity；The chemical composition and mass percent of the waste and old aluminum easy open can be：Mn 0.8~1.5%, Mg≤1.0%, Si≤ 0.6%, Cu≤0.3%, Fe≤0.8%, Cr≤0.2%, Zn≤0.4%, Ti≤0.1%, surplus be Al and inevitably it is miscellaneous Matter；The chemical composition and mass percent of the waste aluminum edges of boards corner material be：Mg 3.5~5.5%, Mn 0.6~1.2%, Si ≤ 0.4%, Cu≤0.2%, Fe≤0.5%, Cr≤0.35%, Zn≤0.35%, Ti≤0.1%, surplus is for Al and unavoidably Impurity；The chemical composition and mass percent of the waste and old aluminium skimmings be：Cu 3.5~6.5%, Zn 4.5~8.5%, Mg 1.5~ 2.5%, Mn≤0.6%, Si≤0.35%, Fe≤0.7%, Cr≤0.5%, Ti≤0.2%, surplus is for Al and inevitably Impurity；The chemical composition and mass percent of the waste aluminium alloy cable be：Mg≤0.9%, Si≤0.6%, Mn≤0.5%, Cu≤0.35%, Fe≤0.6%, Cr≤0.3%, Zn≤0.2%, Ti≤0.1%, surplus are Al and inevitable impurity；The chemical composition and mass percent of the old and useless aluminium foil be：Mg≤0.15%, Si≤0.15%, Mn≤0.05%, Cu ≤ 0.03%, Fe≤0.3%, Cr≤0.01%, Zn≤0.01%, Ti≤0.02%, surplus are Al and inevitable impurity；This method comprises the following steps：Step 1：By above-mentioned waste and old aluminium door and window, waste and old aluminum easy open can, waste aluminum edges of boards corner material, waste and old aluminium skimmings, waste aluminium alloy electricity Cable and old and useless aluminium foil are fused into aluminum alloy melt in 700~780 DEG C of heating；Step 2：The fining agent and 0.3~1.5% essence for accounting for that aluminium scrap raw material gross mass percentage is 0.15~0.3% are used respectively Refining agent carries out micronization processes to aluminum alloy melt and refining degasification removes Slag treatment；Step 3：Semi-continuous casting or continuous casting and rolling or continuous casting and rolling under the conditions of 660~760 DEG C by the aluminum alloy melt after processing Into wrought aluminium alloy；Step 4：Wrought aluminium alloy is dissolved 1~6 hour at 485~530 DEG C, in 175~210 DEG C of timeliness 12~48 after water quenching Hour, satisfactory wrought aluminium alloy is obtained after furnace cooling.
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| CN107937723A (en) * | 2017-11-23 | 2018-04-20 | 张永 | A kind of aluminium scrap casts secondary aluminium alloy method |
| CN109628782A (en) * | 2019-01-31 | 2019-04-16 | 北京科技大学 | A method of aerolite is scrapped without sorting preparation 7XXX line aluminium alloy cast ingot |
| CN110484792B (en) * | 2019-09-27 | 2021-02-26 | 福建省闽发铝业股份有限公司 | Casting production process for improving compressive strength of aluminum profile |
| CN113234949B (en) * | 2021-05-12 | 2022-10-11 | 南昌大学 | Method for preparing regenerated wrought aluminum alloy from waste aluminum alloy |
| CN115595454B (en) * | 2022-10-27 | 2024-01-05 | 广东邦普循环科技有限公司 | Method for recycling aluminum from waste lithium battery positive plate to generate aluminum ingot |
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