CN106906390B - Aluminium alloy anode oxide plate and its production method - Google Patents
Aluminium alloy anode oxide plate and its production method Download PDFInfo
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- CN106906390B CN106906390B CN201710194729.0A CN201710194729A CN106906390B CN 106906390 B CN106906390 B CN 106906390B CN 201710194729 A CN201710194729 A CN 201710194729A CN 106906390 B CN106906390 B CN 106906390B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
Abstract
The present invention provides a kind of aluminium alloy anode oxide plate and its production methods, belong to aluminum alloy processing technology field.A kind of aluminium alloy anode oxide plate, according to mass percentage, its chemical component includes: Si :≤0.1%；Fe :≤0.2%；Cu :≤0.1%；Mn :≤0.1%；Mg:2.2~2.5%；Cr:0.15~0.20%；Zn :≤0.1%；Ti :≤0.1%；Surplus is Al.Aluminium alloy anode oxide plate, plasticity, alloy surface smoothness are high.The production method of the aluminium alloy anode oxide plate, comprising: melting, sampling analysis meet above-mentioned chemical composition content, then by melt casting at aluminium alloy cast ingot, aluminium alloy cast ingot hot rolling are handled as intermediate coiled material, by intermediate coiled material cold rolling, annealing；The production method improves the plasticity of aluminium alloy plate, alloy surface smoothness.
Description
Technical field
The present invention relates to aluminum alloy processing technology fields, in particular to a kind of aluminium alloy anode oxide plate and its life
Production method.
Background technique
Aluminum alloy materials hardness is low, wears no resistance, and abrasion breakage often occurs, industrially uses anode more and more widely
The method of oxidation forms thick and fine and close oxidation film layer in aluminium surface, to significantly change the corrosion resistance of aluminium alloy, improves hardness, resistance to
Mill property and decorative performance.Due to 5052,5251 aluminum alloy materials moderate strengths, easy processing molding and excellent anodic oxidation
Can, it is widely used in expensive goods shell, such as laptop, ultrabook, tablet computer, digital camera and audio and video player
Deng.In recent years, major notebook manufacturer releases the ultrabook of different model, because of the needs of lightening and quick device heat, true shell
It is a large amount of to be manufactured using 5052 or 5251 aluminium alloys through anodized.Aluminium and aluminium alloy can be in true surface shapes through anodic oxidation
At one layer of Al2O3Film, oxide thickness is under normal conditions at 10~30 μm.When anodic oxidation, the growth package of the oxidation film of aluminium surface
Containing two processes: film be electrochemically generated and chemical dissolution procedure, only the growth rate of film be greater than solution rate when, oxidation film
It could generate, thicken, so the shallow surface quality in aluminum alloy base material surface restricts anodic oxidation effect.So-called surface " zero-fault "
Essentially identical, it may be assumed that its surface requirements are clean fine and smooth, and color is uniform, be not allow for crackle, burn into break-through stomata, peeling,
Metal and nonmetallic indentation object, scratch, scuffing, the pressure macroscopic quality such as trace, slivering, oil mark, bright band, blanking bar that prints lack
It falls into.But the plasticity of the anode oxidation board of 5052 or 5251 aluminium alloys and alloy surface smoothness made from prior art are poor, exist
Defect.
Summary of the invention
The purpose of the present invention is to provide a kind of aluminium alloy anode oxide plates, it is carried out on the basis of nominal chemical ingredient
Plasticity, the alloy surface smoothness of aluminium alloy plate has can be improved in optimization, the alloy compositions of optimization.
Another object of the present invention, which also resides in, provides a kind of production method of aluminium alloy anode oxide plate, passes through this method energy
Improve plasticity, the alloy surface smoothness of aluminium alloy anode oxide plate.
The present invention solves its technical problem and adopts the following technical solutions to realize.
A kind of aluminium alloy anode oxide plate, according to mass percentage, its chemical component includes: Si :≤0.1%；Fe:≤
0.2%；Cu :≤0.1%；Mn :≤0.1%；Mg:2.2~2.5%；Cr:0.15~0.20%；Zn :≤0.1%；Ti:≤
0.1%；Surplus is Al.
A kind of production method of aluminium alloy anode oxide plate comprising: aluminium alloy stock is smelted into melt, sampling point
Analysis, controls the chemical component of melt are as follows: Si :≤0.1%；Fe :≤0.2%；Cu :≤0.1%；Mn :≤0.1%；Mg:2.2~
2.5%；Cr:0.15~0.20%；Zn :≤0.1%；Ti :≤0.1%；Surplus is Al；
By melt casting at aluminium alloy cast ingot, aluminium alloy cast ingot hot rolling is handled as intermediate coiled material, intermediate coiled material is cold
It rolls, annealed tensile.
The beneficial effect of a kind of aluminium alloy anode oxide plate provided by the invention and its production method is: by aluminium alloy
The chemical component of anode oxidation board is defined and optimizes in standard base, thus by black existing for aluminium alloy anode oxide plate
A possibility that the defects of item and color difference, reduces, to reduce the surface roughness of aluminium alloy anode oxide plate, is further promoted
The surface quality of aluminium alloy anode oxide plate.And combine the production method of aluminium alloy anode oxide plate further by technological operation
Promote the surface quality of aluminium alloy anode oxide plate.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Below to a kind of aluminium alloy anode oxide plate of the embodiment of the present invention and a kind of production of aluminium alloy anode oxide plate
Method is specifically described.
A kind of aluminium alloy anode oxide plate, secret note and chromatic aberration defect are preferably minimized, and surface quality and surface roughness are big
To take on a new look.It can be found in table 1, according to mass percentage, the chemical component of aluminium alloy anode oxide plate includes: Si :≤0.1%；
Fe :≤0.2%；Cu :≤0.1%；Mn :≤0.1%；Mg:2.2~2.5%；Cr:0.15~0.20%；Zn :≤0.1%；Ti:
≤ 0.1%；Surplus is Al.
Preferably, Si:0.04~0.07%；Fe:0.12~0.16%；Cu:0.03~0.09%；Mn:0.06~
0.08%；Mg:2.4~2.5%；Cr:0.15~0.20%；Zn:0.001~0.014%；Ti:0.01~0.02%；Surplus is
Al。
By controlling the chemical component of aluminium alloy anode oxide plate (by taking 5052 and 5252 as an example), aluminium alloy plate is improved
Plasticity, alloy surface smoothness.
1 nominal composition of table is compared with chemical component of the present invention
In the present embodiment, by the chemical component to aluminium alloy anode oxide plate be defined in standard base with it is excellent
Change, so that by the defects of secret note existing for aluminium alloy anode oxide plate and color difference a possibility that reduces, to reduce aluminium alloy
The surface roughness of anode oxidation board further promotes the surface quality of aluminium alloy anode oxide plate.
Aluminium alloy anode oxide plate provided in this embodiment can according to conventional production process carry out melting, casting and after
Phase processing, aluminium alloy anode oxide plate obtained, based on the optimization to its chemical component, surface defect is compared to the prior art
Middle aluminium alloy anode oxide plate is less, and quality is more preferably.
A kind of production method of aluminium alloy anode oxide plate comprising:
Aluminium alloy stock is smelted into melt, sampling analysis controls the chemical component of melt are as follows: Si :≤0.1%；Fe:≤
0.2%；Cu :≤0.1%；Mn :≤0.1%；Mg:2.2~2.5%；Cr:0.15~0.20%；Zn :≤0.1%；Ti:≤
0.1%；Surplus is Al；By melt casting at aluminium alloy cast ingot, aluminium alloy cast ingot hot rolling is handled as 2.5~7.5mm of thickness
Intermediate coiled material, by intermediate coiled material cold rolling, annealing.
Step S1 --- the melting of the production method of aluminium alloy anode oxide plate specifically:
Aluminium alloy stock is carried out to melting under conditions of 720~750 DEG C and stirs to obtain melt；Wherein, aluminium alloy stock
It by mass percentage include: solid aluminium material 35~40%, aluminium scrap material 35~40% and electrolyte 20~30%.
Solid aluminium material is the solid aluminium material that ingredient is >=99.7%, specially remelting aluminium ingot；Aluminium scrap material is identical conjunction
The arm of angle material of golden ingredient, such as: one of ingot casting saw cutting head tailing, hot-rolled thick plank cutting head tailing are a variety of.Specifically, by aluminium
Chemical component and mass percent the preparation raw material of alloy plate, smelting aluminium alloy raw material under conditions of 720~750 DEG C,
When the 50%~60% of aluminium alloy stock is molten into molten aluminum, electromagnetic agitation is opened, after aluminium alloy stock all melts, is added
Component additive agent.
Component additive agent is a kind of pie product that alite paste (such as: No. 2 flux) mechanical compression molding is added with metal powder.
The aluminum melting process time can be simplified with component additive agent or intermediate alloy, energy saving and raw material reduce production cost,
Conducive to accurate control alloy composition, product quality is improved.The content of magnesium of 5XXX system alloy is 0.5~6.0% (mass fraction), is deposited
The ingredient that accompanies difference and change.Due to Mg2Solid solubility very little of the Si in aluminium, Mg2Si is in the series alloy
It is primarily present phase.In the present embodiment, preferably manganese agent is added in the aluminium alloy stock after dissolving as component additive agent, manganese agent tool
Have the advantages that tenor it is high, it is small in size, convenient for storage and transportation and use.The addition of manganese can make mutually to precipitate containing magnesium uniformly, improve alloy
Corrosion resistance, the especially ability of stress corrosion dehiscence resistant；The addition of manganese can significantly improve alloy strength, and ensure that alloy has
Higher stability.
The application method of component additive agent are as follows: remove molten aluminum surface dross, common operation temperature (i.e. 710 DEG C~
750 DEG C) under component additive agent is equably put into molten bath, be sufficiently stirred 5~10 minutes.It is uniform to enable aluminum alloy to Elemental redistribution
It absorbs completely, 10~15 minutes after should being stood after being sufficiently stirred, and is skimmed, adjusting component.
The step S2 of the production method of aluminium alloy anode oxide plate --- multistage purification processing specifically:
When carrying out multistage purification processing to melt, S201: gaseous mixture refining is first carried out.
By melt transfer to holding furnace, furnace side Ar and Cl are carried out2Gaseous mixture refining, ingredient is qualified and casting is made adequate preparation
Afterwards, melt stands appropriate time.
By being blown into the inert gas for not only not dissolving in aluminum alloy melt but also not reacting with hydrogen into aluminum alloy melt, obtain
Hydrogen-free bubble.Since these minute bubbles are in floating-upward process, Al on the one hand can be adsorbed2O3Equal field trashes, on the other hand can also clamp
Pressure difference between nitrogen or argon gas bubbles and aluminium alloy contact surface sucks the hydrogen being dissolved in aluminium alloy in bubble.Work as absorption
After the bubble floating of field trash and/or hydrogen is excluded to liquid level, the purpose of degassing and slagging-off can achieve.
Ar and Cl is used in the present embodiment2Gaseous mixture is refined, wherein and active gases chlorine does not dissolve in aluminum alloy melt,
But strong chemical reaction occurs for energy and aluminium and the hydrogen being dissolved in aluminum alloy melt, generates HCl and AlCl insoluble in aluminum alloy melt3
Gas.Due to reacting these gases generated and the Cl for not participating in reaction2This this can play adsorbed hydrogen and oxide inclusion
Effect, so its refining effect ratio is far better using pure gas argon gas or nitrogen.Generally carried out at refining in logical chlorine
When reason, the temperature general control of aluminum alloy melt is at 690~720 DEG C, but the logical chlorine time is then according to different alloy systems and not
Together.Although the effect of logical chlorine refining is preferable, complete equipment is more complicated, and chlorine is toxic, is harmful to the human body and right
Equipment, environment have corrosiveness, therefore in the present embodiment, by Cl2It is used in mixed way with Ar, compared with the refining of logical chlorine, leads to mixing
The refining time of gas refinement saves half, and due to having used argon gas, alleviates chlorine and make to the corrosion of human body and equipment
With so that operating condition be made also to be greatly improved.
After gaseous mixture refines, then carry out S202: degasification removal of impurities.
Degasification removal of impurities: melt is subjected to melt degasification through SNIF degassing apparatus；Then the foam of 30PPI and 50PPI is made pottery
Porcelain plate is separately heated to 600~750 DEG C, and the foamed ceramic panel for making melt successively pass through 30PPI and 50PPI carries out melt filtration.
Melt provided in this embodiment first passes through Ar and Cl2Gaseous mixture is refined, can remove melt intracorporal gas and
Impurity further recycles the foamed ceramic panel of the progress melt degasification of SNIF degassing apparatus and 30PPI and 50PPI to be melted
Body filtering so that the air content of melt and impurity content further decrease, while after foamed ceramic panel heating, can effectively prevent steeping
The blocking of foam ceramic wafer, and effectively remove melt field trash.In addition, according to the principle of slag gas association, while removing field trash,
Hydrogen in melt also can further decline.By the degasification that cleans twice, significantly reduces and melt intracorporal gassiness and impurity content, be
The clean aluminium alloy cast ingot fine and smooth, that color is uniform of casting surface is laid a good foundation.
After degasification removal of impurities, multistage purification processing further includes S203: crystal grain refinement.
It is added alterant into melt, the mass ratio of melt and alterant is 100:0.01~0.03.Alterant energy is added
Enough improve crystallization process, preferably by Al5Ti1B crystal grain refinement silk as alterant.
Cleaning molten uses multi-stage combination cleaning molten technology, so that ingot metallurgy quality is reached the level of High Purity, makes to cast
Ingot metallurgy quality meets: 1 grade of grain size；[H]≤0.1ml/100gAl；Na < 2PPm；Ca < 4PPm；Slag < 50K/kg.Product
Forming property and mechanical property it is more excellent.Melt hydrogen content after online processing is few, impurity content is reduced, and makes simultaneously
Aluminium alloy cast ingot more evenly, it is tiny.
S3, casting:
By melt cast at aluminium alloy cast ingot (620 × 1000~2800 × Lmm).
S4, milling face: the expanding end of aluminium alloy cast ingot and gate end sawing are fallen, ingot casting upper and lower surface and two sides are carried out
Milling face；The surface that milling face can enable aluminum alloy to ingot casting is more smooth, and then promotes the quality of aluminium alloy cast ingot.
S5, Homogenization Treatments: the aluminium alloy cast ingot behind sawing milling face is subjected to Homogenization Treatments；Specifically, at homogenization
Reason includes: to be warming up to 460~470 DEG C to ingot casting with the heating rate of 30~40 DEG C/h, keeps the temperature 10~12h；It is continuously heating to 485
~560 DEG C, 6~8h is kept the temperature, then be cooled to 460~480 DEG C with the rate of temperature fall of 20~25 DEG C/h, keep the temperature 2~4h.
In the present embodiment, Homogenization Treatments are different from Homogenization Treatments in the prior art, use three-level in the present embodiment
Homogenization Treatments that is to say and operate by heating and heat preservation twice, using primary cooling heat preservation operation, finally with specific rate
(20~25 DEG C/h) cool down, and the operation of secondary temperature elevation heat preservation keeps ingot casting uniformity coefficient higher, last time cooling behaviour
Make, heat preservation is conducive to second phase particles uniform tiny precipitation in ingot casting, and plasticity, the reduction deformation for being conducive to raising ingot casting are anti-
Power is conducive to the fabricated product of ingot casting or the end-use properties of casting.Such as: corrosion resistance is improved, lamellar tissue is prevented, is weakened
Material anisotropy improves structure stability, prevents creep from leading to material shape size change etc..
S6, hot rolling:
Hot rolling treatment includes carrying out multi- pass rolling to aluminium alloy cast ingot, in multi- pass rolling, is cast with to aluminium alloy
Ingot is sprayed emulsion and is cleared up using cleaning roller working roll.
Specifically, the aluminium alloy cast ingot after Homogenization Treatments is subjected to 30~35 passes through roll, and cleaned with water
Under conditions of the cleaning frequency of roller is 20~30 frequencys/min, the emulsification for being 7.0%~7.5% to aluminium alloy cast ingot injection concentration
Aluminium alloy cast ingot is rolled to the intermediate coiled material of 2.5~7.5mm thickness by liquid, and roll rotational speed is 400~500rpm, and roller pressing power is
250~320N, finishing temperature are 300~380 DEG C.
Wherein the flow of emulsion is the 3%~5% of emulsion total flow, and injection pressure is 0.3~0.6MPa.Emulsion
Fat content percentage be 24~25%.
Using the hot rolling technology of " control passage+brush roll+emulsion " in the present embodiment, the surface quality of rolling is made to reduce surface
Secret note and chromatic aberration defect are minimum.To make the surface quality of alloy and surface roughness greatly take on a new look.
In the prior art, the fat content of emulsion is generally 20%, and the grease that emulsion is improved in the present embodiment contains
Amount is to 24~25%, and emulsion plays the role of lubrication and cooling during the rolling process, and wherein lubricating action can effectively reduce
Frictional force in the operation of rolling, to substantially drop frictional force.It obtains good version type, reduces roller damage and rolling heat, extension is rolled
Roller service life.In the present embodiment, fat content is high, is conducive to the thickness for increasing the oil lamella of emulsion, is more advantageous to plate
Surface is smooth.
S7, cold rolling: intermediate coiled material is obtained into aluminum alloy coiled materials after cold rolling, Cold Reduction is 55~75%.This implementation
Cold rolling in example is carried out on 6 roller CVC milling trains, and degree of deformation is bigger when cold rolling, and obtained crystal grain is with regard to smaller, the deformation of cold rolling
Amount is 55~75%, and deformation quantity with higher improves the plasticity of alloy.
S8, annealing: keeping the temperature 2~4 hours under the conditions of 100~500 DEG C for aluminum alloy coiled materials, and be draw textured, and draws
Stretching deflection is 0.5~1.5%.What the annealing in the present embodiment carried out on continuous heat-treating drier.
Following equipment: 60 tonnes of tipping smelting furnaces and holding furnace can be used in the above production technology；Magnetic stirrer
(ABB)；Mixer truck；Forklift for slag；Furnace surveys purifier (STAS)；The online depassing unit of double stage tandem；Twin-stage ceramic filter plate
(30PPI+50PPI)；Electric heating covers chute；Online crystal grain refinement device, hydraulic standing inner guide type casting system and technique are flat
Platform (Wagstaff)；Qi Zhulu and corollary apparatus；Wiper；Online hydrogen meter；Online survey slag instrument (LiMCA CM) surveys slag instrument.
In the present embodiment, by the chemical component to aluminium alloy anode oxide plate be defined in standard base with it is excellent
Change, so that by the defects of secret note existing for aluminium alloy anode oxide plate and color difference a possibility that reduces, to reduce aluminium alloy
The surface roughness of anode oxidation board further promotes the surface quality of aluminium alloy anode oxide plate.And combine aluminum alloy anode
The production method of oxidation plate further promotes the surface quality of aluminium alloy anode oxide plate by technological operation.It that is to say and pass through control
System (that is to say in gaseous mixture refining, degasification removal of impurities and crystal grain refinement) melt using multistage purification technology, make ingot metallurgy matter
Amount reaches the level of High Purity, meets ingot metallurgy quality: 1 grade of grain size；[H]≤0.1ml/100gAl；Na < 2PPm；Ca
< 4PPm；Slag < 50K/kg.Meanwhile controlling the parameter of three-level Homogenization Treatments, it is ensured that aluminium alloy cast ingot uniformity coefficient is higher, produces
The forming property and mechanical property of product are more excellent.Further, to the ginseng of the technique of hot rolling (multi-pass+cleaning roller+emulsion)
Number is selected and is limited, while being selected the fat content of the emulsion in hot rolling technology, and the surface cleaning of alloy is made
The case where exquisiteness, color is uniform, while the setting of emulsion improves alloy crack, reasonable oil content avoid the production of oil mark
It is raw, while it is easier the operation of rolling, effect of rolling is more preferable." secret note " and " patch aluminium " defect of alloy is set to drop to and not show, thus
The surface quality and surface roughness for making alloy are greatly taken on a new look.
Below with reference to embodiment, the present invention is further described.
The chemical constituent of Examples 1 to 6 is shown in Table 2.
The chemical component and mass percent for the aluminium alloy anode oxide plate that each embodiment of table 2. provides
Embodiment 1
The aluminium alloy anode oxide plate of the present embodiment is prepared by following production method, and following step is specifically included
It is rapid:
S1, melting: prepare by the chemical component and mass percent of the aluminium alloy anode oxide plate of embodiment 1 in table 2
Raw material, aluminium alloy stock include: solid aluminium material 35%, aluminium scrap material 35% and electrolyte 30% by mass percentage.Wherein,
The ingredient of solid aluminium material is Al, and aluminium scrap material is the arm of angle material of identical alloying component.Smelting aluminium alloy is former under conditions of 720 DEG C
Expect and stir to obtain melt, sampling analysis, the chemical component for controlling solution is Si:0.07；Fe:0.16；Cu:0.03；Mn:0.07；
Mg:2.4；Cr:0.18；Zn:0.007；Ti:0.015.
Melt is cast as aluminium alloy cast ingot according to conventional production process, and aluminium alloy cast ingot progress hot rolling treatment is rolled to
The intermediate coiled material of 2.5~7.5mm of thickness operates intermediate coiled material cold rolling, annealing etc..
Embodiment 2
The aluminium alloy anode oxide plate of the present embodiment is prepared by following production method, and following step is specifically included
It is rapid:
S1, melting: prepare by the chemical component and mass percent of the aluminium alloy anode oxide plate of embodiment 2 in table 2
Raw material, aluminium alloy stock include: solid aluminium material 35%, aluminium scrap material 35% and electrolyte 30% by mass percentage.Wherein,
The ingredient of solid aluminium material is Al, and aluminium scrap material is the arm of angle material of identical alloying component.Smelting aluminium alloy is former under conditions of 720 DEG C
Expect and stir to obtain melt, sampling analysis, the chemical component for controlling solution is the index met in table 2.
S2, multistage purification processing: by melt transfer to holding furnace, furnace side Ar and Cl are carried out2Gaseous mixture refining, melt is passed through
SNIF degassing apparatus carries out melt degasification；Then the foamed ceramic panel of 30PPI and 50PPI is separately heated to 600 DEG C, makes melt
Successively melt filtration is carried out by the foamed ceramic panel of 30PPI and 50PPI.It is rotten being added into melt after degasification removal of impurities
The mass ratio of agent, melt and alterant is that 100:0.01 carries out crystal grain refinement processing, after the completion of processing,
S3, casting: by melt cast at aluminium alloy cast ingot (620 × 1000 × 8650mm).
S4, milling face: the expanding end of aluminium alloy cast ingot and gate end sawing are fallen, ingot casting upper and lower surface and two sides are carried out
Milling face；
S5, Homogenization Treatments: the aluminium alloy cast ingot behind sawing milling face is carried out to conventional Homogenization Treatments, specially by aluminium
Alloy cast ingot promotes in step-by-step movement and is heated to 480 DEG C in furnace, keeps the temperature 10h.
S6, hot rolling: 30 passes are carried out through roll, and under conditions of play frequency is 20 frequencys/min, aluminium is closed
Aluminium alloy cast ingot, is rolled to the intermediate coiled material of 6.5mm thickness, the speed of roll is by the emulsion that golden ingot casting injection concentration is 7.0%
400rpm, the throw-on pressure of roll are 250N, and finishing temperature is 330 DEG C.Wherein emulsification flow quantity is the 3% of emulsion total flow,
Injection pressure is 0.3MPa.The fat content percentage of emulsion is 24%.Curl tension and crimping roller roughness such as 3 institute of table
Show, greatly improve 5052 alloy base material hot rolled coil surface quality, efficiently solves secret note and color difference after surface anodization and lack
It falls into.
3. curl tension of table and crimping roller roughness
S7, cold rolling: intermediate coiled material is obtained into aluminum alloy coiled materials, Cold Reduction 55% after cold rolling.
S8, annealing: aluminum alloy coiled materials are kept the temperature 2~4 hours under the conditions of 500 DEG C, and are draw textured, stretcher strain
Amount is 0.5~1.5%.
Embodiment 3
The aluminium alloy anode oxide plate of the present embodiment is prepared by following production method, and following step is specifically included
It is rapid:
S1, melting: prepare by the chemical component and mass percent of the aluminium alloy anode oxide plate of embodiment 3 in table 2
Raw material, aluminium alloy stock include: solid aluminium material 40%, aluminium scrap material 40% and electrolyte 20% by mass percentage.Wherein,
The ingredient of solid aluminium material is Al, and aluminium scrap material is the arm of angle material of identical alloying component.Smelting aluminium alloy is former under conditions of 750 DEG C
Material opens electromagnetic agitation when the 50%~60% of aluminium alloy stock is molten into molten aluminum, removes the dross on molten aluminum surface, logical
It is uniformly put into molten bath under normal operation temperature (i.e. 710 DEG C~750 DEG C) using manganese agent as component additive agent, is sufficiently stirred 5
It~10 minutes, 10~15 minutes after should being stood after being sufficiently stirred, and is skimmed, adjusting component.Sampling analysis controls solution
Chemical component meets the index in table 5.
S2, multistage purification processing
Then transfer melt carries out furnace side Ar and Cl to holding furnace2Gaseous mixture refining, ingredient is qualified and casting is made adequate preparation
Afterwards, melt stands appropriate time.By melt under the conditions of 710 DEG C, melt is subjected to melt degasification through SNIF degassing apparatus；Then
The foamed ceramic panel of 30PPI and 50PPI is separately heated to 750 DEG C, melt is made successively to pass through the foam pottery of 30PPI and 50PPI
Porcelain plate carries out melt filtration.After degasification removal of impurities, it is being added alterant into melt, the mass ratio of melt and alterant is 100:
0.02 carries out crystal grain refinement processing.
S3, casting: after the completion of processing, by melt cast at aluminium alloy cast ingot (620 × 2800 × 9650mm).
S4, milling face: the expanding end of aluminium alloy cast ingot and gate end sawing are fallen, ingot casting upper and lower surface and two sides are carried out
Milling face.
S5, Homogenization Treatments: being warming up to 460 DEG C for the aluminium alloy cast ingot behind sawing milling face with the heating rate of 30 DEG C/h,
Keep the temperature 10h；485 DEG C are continuously heating to, 6h is kept the temperature, 460 DEG C is cooled to the rate of temperature fall of 20 DEG C/h, keeps the temperature 2h.
S6, hot rolling: 35 passes are carried out through roll, and under conditions of play frequency is 30 frequencys/min, aluminium is closed
Aluminium alloy cast ingot, is rolled to the intermediate coiled material of 6mm thickness, the speed of roll is by the emulsion that golden ingot casting injection concentration is 7.5%
500rpm, the throw-on pressure of roll are 320N, and finishing temperature is 380 DEG C.Wherein emulsification flow quantity is the 5% of emulsion total flow,
Injection pressure is 0.6MPa.The fat content percentage of emulsion is 25%.Curl tension and crimping roller roughness such as 4 institute of table
Show, greatly improve 5052 alloy base material hot rolled coil surface quality, efficiently solves secret note and color difference after surface anodization and lack
It falls into.
4 curl tension of table and crimping roller roughness
S7, cold rolling: intermediate coiled material is obtained into aluminum alloy coiled materials, Cold Reduction 75% after cold rolling.
S8, annealing: keeping the temperature 2~4 hours under the conditions of 100~500 DEG C for aluminum alloy coiled materials, and be draw textured, and draws
Stretching deflection is 0.5~1.5%.
Embodiment 4
The aluminium alloy anode oxide plate of the present embodiment is prepared by following production method, and following step is specifically included
It is rapid:
S1, melting: prepare by the chemical component and mass percent of the aluminium alloy anode oxide plate of embodiment 4 in table 2
Raw material, aluminium alloy stock include: solid aluminium material 40%, aluminium scrap material 40% and electrolyte 20% by mass percentage.Wherein,
The ingredient of solid aluminium material is Al, and aluminium scrap material is the arm of angle material of identical alloying component.Smelting aluminium alloy is former under conditions of 730 DEG C
Material opens electromagnetic agitation when the 55% of aluminium alloy stock is molten into molten aluminum, the dross on molten aluminum surface is removed, in common behaviour
Make uniformly to put into molten bath under temperature (i.e. 710 DEG C~750 DEG C) using manganese agent as component additive agent, is sufficiently stirred 5~10 points
Clock 10~15 minutes after should standing after being sufficiently stirred, and is skimmed, adjusting component.
S2, multistage purification processing
Then transfer melt carries out furnace side Ar and Cl to holding furnace2Gaseous mixture refining, ingredient is qualified and casting is made adequate preparation
Afterwards, melt stands appropriate time.By melt under the conditions of 710 DEG C, melt is subjected to melt degasification through SNIF degassing apparatus；Then
The foamed ceramic panel of 30PPI and 50PPI is separately heated to 600 DEG C, melt is made successively to pass through the foam pottery of 30PPI and 50PPI
Porcelain plate carries out melt filtration.After degasification removal of impurities, it is being added alterant into melt, the mass ratio of melt and alterant is 100:
0.03 carries out crystal grain refinement processing.
S3, casting: after the completion of processing, by melt cast at aluminium alloy cast ingot (620 × 2000 × 7650mm).
S4, milling face: the expanding end of aluminium alloy cast ingot and gate end sawing are fallen, ingot casting upper and lower surface and two sides are carried out
Milling face.
S5, Homogenization Treatments: being warming up to 470 DEG C for the aluminium alloy cast ingot behind sawing milling face with the heating rate of 40 DEG C/h,
Keep the temperature 10h；560 DEG C are continuously heating to, 8h is kept the temperature, then be cooled to 480 DEG C with the rate of temperature fall of 25 DEG C/h, keeps the temperature 4h.
S6, hot rolling: 33 passes are carried out through roll, and under conditions of play frequency is 25 frequencys/min, aluminium is closed
Aluminium alloy cast ingot, is rolled to the intermediate coiled material of 7.5mm thickness, the speed of roll is by the emulsion that golden ingot casting injection concentration is 7.3%
450rpm, the throw-on pressure of roll are 300N, and finishing temperature is 350 DEG C.Wherein emulsification flow quantity is the 4% of emulsion total flow,
Injection pressure is 0.5MPa.The fat content percentage of emulsion is 25%.Curl tension and crimping roller roughness such as 5 institute of table
Show, greatly improve 5052 alloy base material hot rolled coil surface quality, efficiently solves secret note and color difference after surface anodization and lack
It falls into.
5. curl tension of table and crimping roller roughness
S7, cold rolling: intermediate coiled material is obtained into aluminum alloy coiled materials after cold rolling, Cold Reduction is 55~75%.
S8, annealing: keeping the temperature 2~4 hours under the conditions of 100~500 DEG C for aluminum alloy coiled materials, and be draw textured, and draws
Stretching deflection is 0.5~1.5%.
Embodiment 5
The production method of aluminium alloy anode oxide plate provided in this embodiment is substantially same as Example 4, and difference exists
In: in the present embodiment in S1, melting step, by table 2 embodiment 5 provide aluminium alloy anode oxide plate chemical component with
And mass percent prepares raw material, in addition, parameter is different in the Homogenization Treatments of step S5 in the present embodiment.
S5, Homogenization Treatments: being warming up to 460 DEG C for the aluminium alloy cast ingot behind sawing milling face with the heating rate of 30 DEG C/h,
Keep the temperature 8h；520 DEG C are continuously heating to, 7h is kept the temperature, 470 DEG C is cooled to the rate of temperature fall of 23 DEG C/h, keeps the temperature 3h.
Embodiment 6
The production method of aluminium alloy anode oxide plate provided in this embodiment is substantially same as Example 3, and difference exists
In: in the present embodiment in S1, melting step, by table 2 embodiment 6 provide aluminium alloy anode oxide plate chemical component with
And mass percent prepares raw material, in addition, parameter is different in the hot rolling of step S6 in the present embodiment.
S6, hot rolling: the aluminium alloy cast ingot after Homogenization Treatments is subjected to 33 passes through roll, and in play frequency
Under conditions of 22 frequencys/min, aluminium alloy cast ingot is rolled to by the emulsion for being 7.4% to aluminium alloy cast ingot injection concentration
The intermediate coiled material of 2.5mm thickness, the speed of roll are 430rpm, and the throw-on pressure of roll is 270N, and finishing temperature is 370 DEG C.
Comparative example
The first, the selection of the mass percent of the chemical component of aluminium alloy anode oxide plate
The chemical component and mass percent for the aluminium alloy anode oxide plate that each embodiment of table 6. provides
The chemical component and its mass percent of the aluminium alloy anode oxide plate provided according to above-mentioned 8 experimental examples are matched
Material, and according to the processing of the method for the offer of embodiment 1 progress aluminium alloy anode oxide plate, it that is to say, according to conventional production
Method is processed.Big crystal grain, light and shade striped, longitudinal corrosion depth, transverse direction are carried out to 8 aluminium alloy anode oxide plates obtained
The measurement of corrosion depth and surface homogeneity, measurement result are as follows:
Influence of the chemical component of 7. aluminium alloy anode oxide plate of table to its performance
By table 7, it is apparent that Examples 1 to 6 does not generate big crystal grain and light and shade fringe phenomena, and 1 He of comparative example
There is big crystal grain and light and shade fringe phenomena in the aluminium alloy anode oxide plate that comparative example 2 provides.
Wherein, big crystal grain phenomenon Producing reason is that a) heat treating regime is improper；B) ingot chemistry controls not
When.And light and shade fringe phenomena Producing reason is: a) ingot surface quality is poor, and hot rolling does not have milling face again；B) steel slab surface group
Knitting unevenness has coarse grain.Since Examples 1 to 6 and comparative example 1~2 are prepared using identical production method, generate big brilliant
The main reason for grain and light and shade fringe phenomena, is that the chemical component for the aluminium alloy anode oxide plate that Examples 1 to 6 provides more is closed
Reason can improve big crystal grain and light and shade fringe phenomena by controlling chemical component.
By the aluminium alloy anode oxide plate that Examples 1 to 6 provides and the aluminium alloy anode oxide that comparative example 1~2 provides
Plate is respectively placed in the longitudinal corrosion depth formed after the surface corrosion pattern after impregnating for 24 hours in corrosive liquid and corrosion and laterally corruption
Depth is lost to judge the corrosion resistance of 8 test examples.Wherein, table after the aluminium alloy anode oxide plate corrosion that Examples 1 to 6 provides
The sign that face metal is peeled off in bulk, meanwhile, the aluminium alloy anode oxide plate corrosion depth and peeling area of embodiment 3~6 are small
In the aluminium alloy anode oxide plate of Examples 1 to 2, and the corrosion depth and peeling of the aluminium alloy anode oxide plate of comparative example 1~2
Area is much larger than greatly the aluminium alloy anode oxide plate of Examples 1 to 6 offer.
Further, since intensity is larger in comparative example, second phase particles are coarse, and the surface of aluminium alloy anode oxide plate is caused to hold
Easy crackle.
It can be seen that aluminium alloy can be reduced by the mass percent for the chemical component for improving aluminium alloy anode oxide plate
The slivering of anode oxidation board and the generation of oil mark, while corrosion resistance is improved, and enable aluminum alloy to the surface of anode oxidation board more
It is clean fine and smooth.
The second, the selection of the production method of aluminium alloy anode oxide plate
Ingredient is carried out according to the chemical constituent and mass percent of the aluminium alloy anode oxide plate in table 6, and is implemented
The corresponding production method provided using embodiment 1 of example 1 processes aluminium alloy anode oxide plate, and embodiment 2 is corresponding to be mentioned using embodiment 2
The production method of confession processes aluminium alloy anode oxide plate, and so on, the corresponding producer provided using embodiment 6 of embodiment 6
Method processes aluminium alloy anode oxide plate.And the production method processing aluminium that comparative example 1 and comparative example 2 are all made of the offer of embodiment 3 closes
Gold anode aoxidizes plate.Big crystal grain, light and shade striped, longitudinal corrosion depth, transverse direction are carried out to 8 aluminium alloy anode oxide plates obtained
The measurement of corrosion depth and surface homogeneity, measurement result are as follows:
Influence of the production method of 8. aluminium alloy anode oxide plate of table to its performance
By contrast table 7 and table 8, it will be evident that the chemistry for not changing Examples 1 to 6 and comparative example 1~2 at
In the case where point, changes production method, corrosion resistance can be obviously improved, while enabling aluminum alloy to buckling performance and the weldering of plate
Connect performance more preferably.
Third, the parameter selection of Homogenization Treatments
The parameter selection data of 9. Homogenization Treatments of table
For aluminium alloy cast ingot without Homogenization Treatments there is serious microstructure segregation, alloy is equal through 560 DEG C × 20h single-stage
After homogenizing processing, the non-equilibrium phase on crystal boundary is reduced, and has been formed discontinuously arranged, and component segregation is improved；Extend single
After the time of grade Homogenization Treatments (560 DEG C × 36h), the variation of crystal boundary effect is not significant.Increase on the basis of single-stage homogenization
The post drop of 300 DEG C × 6h is kept the temperature, and uniformization effect is more preferable, and the dissolution quantity of non-equilibrium phase increases, and crystal boundary is more straight, and
Shape is regular, and ingot casting intensity is big, and rigidity is strong；In addition, increasing by heat preservation early period of 470 DEG C × 10h on the basis of single-stage homogenizes
Uniformization effect is more preferable, and the dissolution quantity of non-equilibrium phase increases, and crystal boundary is more straight, and shape is regular, eliminates ingot casting crystal boundary
On nonequilibrium freezing eutectic structure, crystal boundary is in linear, but ingot casting intensity is small, easy fracture.And through 470 DEG C × 10h+560 DEG C
After × 8h+480 DEG C × 4h three-level Homogenization Treatments, the nonequilibrium freezing eutectic structure on ingot casting crystal boundary is eliminated, crystal boundary is in line
Strip, after ageing treatment, mechanical property is more excellent.
4th, the fat content parameter selection of emulsion
The fat content parameter selection data of 10. emulsion of table
| Test example | Fat content | Plate smoothness | Roll situation |
| Embodiment 4 | 25% | Surface is smooth, uniform | High lubricating effect, draught pressure are moderate |
| Comparative example 8 | 20% | There are crackles on surface | Corresponding lubrication cannot be provided, draught pressure is higher |
| Comparative example 9 | 30% | Surface is smooth, uneven thickness | High lubricating effect, the operation of rolling have skidded phenomenon |
| Comparative example 10 | 35% | There are oil marks on surface | High lubricating effect rolls more difficult |
Emulsion can play the role of lubrication and cooling, when fat content is low in emulsion, plate during the rolling process
Material is easy to appear crackle, it is difficult to meet the requirement of aluminium alloy anode oxide plate, and when fat content is high in emulsion, plate holds
Easily there is oil mark, while there are problems that skidding during the rolling process or being difficult to roll, can not also be satisfied with aluminium alloy anode oxide
The requirement of plate, by the continuous selection and optimization to emulsion in the present embodiment, determine the fat content of emulsion be 24~
When 25%, lubricant effect is best, and meets the requirement of aluminium alloy anode oxide plate " zero-fault ", that is to say, meets its table
Face requires clean exquisiteness, and color is uniform, is not allow for crackle, burn into break-through stomata, peeling, metal and nonmetallic indentation object, wipes
Wound scratches, presses the macroscopic mass defect such as trace, slivering, oil mark, bright band, blanking bar that prints.
5th, the selection of hot rolling technology
The selection data of 11. hot rolling technology of table
The surface of the intermediate coiled material handled by hot rolling technology provided by embodiment 4 is smooth, surface free from admixture, rolls
System is easy, forming degree is high and nothing " patch aluminium " phenomenon.
Comparative example 11 is merely through the rolling of multi-pass, and without emulsion lubrication in the operation of rolling, pressure needed for rolling is big,
It is rolled under the depended on pressure of 300N difficult.In addition, there is " patch aluminium " phenomenon in coiled material surface.
It is high to make coiled material surface clean-up performance for technique of the comparative example 12 Jing Guo " passage+brush roll ", but without emulsification in the operation of rolling
Liquid lubrication, pressure needed for rolling is big, rolls under the depended on pressure of 300N difficult.
Technique of the comparative example 13 Jing Guo " passage+emulsion ", keeps the lubricity of coiled material surface good, and uniformity is also preferable, but
There is " patch aluminium " phenomenon in coiled material surface.
The technique in comparative example 11 or comparative example 12 is mostly used to increase rolling during the rolling process greatly in the prior art
Depended on pressure, such method increase production cost, meanwhile, lubrication and cooling effect in the operation of rolling without emulsion, rolling are stranded
Hardly possible can not roll.
6th, the selection of purification process
The selection data of 12. hot rolling technology of table
Requirement to aluminium alloy melt degree of purity, the difference for being typically due to kind and purposes have certain difference.Usually
Hydrogen content requires to be less than 0.2ml/100gAl, but should be in 0.1ml/100gAl or less for the aeronautical material of particular/special requirement.Sodium contains
Amount should be in 5ppm or less；Non-metallic inclusion is not allow for the particle and aggregation of 1~5Lm size, inclusion content it is more low more
It is good.And grain size is the measurement of grain size.Multistage purification technique is used it is found that combining in the present embodiment by upper table, makes to melt
The hydrogen content and impurity content of body are greatly lowered, while grain size meets 1 grade of requirement.In conclusion the embodiment of the present invention
The chemical component of 5052,5252 aluminium alloy anode oxide coiled materials is optimized, the tissue of aluminium alloy anode oxide plate is improved
Structure and the comprehensive performance of alloy reach the requirement of anodic oxidation.Meanwhile during melt melting and casting, cleaning molten is used
Multi-stage combination cleaning molten technology (that is to say online processing step), and ingot metallurgy quality is made to reach the level of High Purity, make to cast
Ingot metallurgy quality meets: 1 grade of grain size；[H]≤0.1ml/100gAl；Na < 2PPm；Ca < 4PPm；Slag < 50K/kg.Product
Forming property and mechanical property it is more excellent.In addition, the embodiment of the present invention passes through the parameter and Hot-roller to Homogenization Treatments
The parameter of skill is selected and is limited, while being selected the fat content of the emulsion in hot rolling technology, and the table of alloy is made
The case where face cleaning is fine and smooth, and color is uniform, while the setting of emulsion improves alloy crack, reasonable oil content avoids oil
The generation of spot, while it is easier the operation of rolling, effect of rolling is more preferable.Drop to " secret note " and " patch aluminium " defect of alloy most
It is low, so that the surface quality of alloy and surface roughness be made greatly to take on a new look.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.Reality of the invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (7)
1. a kind of production method of aluminium alloy anode oxide plate, characterized in that it comprises: be smelted into aluminium alloy stock molten
Body, sampling analysis control the chemical component of the melt are as follows: Si:0.04~0.07%；Fe:0.12~0.16%；Cu:0.03
~0.09%；Mn:0.06~0.08%；Mg:2.4~2.5%；Cr:0.15%~0.20%；Zn:0.001~0.014%；
Ti:0.01~0.02%；Surplus is Al；
By the melt casting at aluminium alloy cast ingot, the aluminium alloy cast ingot hot rolling is handled as intermediate coiled material, in described
Between coiled material cold rolling, annealed tensile；
Wherein, the aluminium alloy stock include: by mass percentage solid aluminium material 35~40%, aluminium scrap material 35~40% and
Electrolyte 20~30%；
It further include aluminium alloy cast ingot described in Homogenization Treatments before the hot rolling treatment: to the ingot casting with 30~40 DEG C/h
Heating rate be warming up to 460~470 DEG C, keep the temperature 10~12h；477~560 DEG C are continuously heating to, keeps the temperature 6~8h, then with 20
The rate of temperature fall of~25 DEG C/h is cooled to 460~480 DEG C, keeps the temperature 2~4h.
2. the production method of aluminium alloy anode oxide plate according to claim 1, which is characterized in that the hot rolling treatment packet
It includes and multi- pass rolling is carried out to the aluminium alloy cast ingot with roll, in the multi- pass rolling, cast with to the aluminium alloy
Ingot is sprayed emulsion and is cleared up using cleaning roller the roll.
3. the production method of aluminium alloy anode oxide plate according to claim 2, which is characterized in that the multi- pass rolling
Rolling number be 30~35 passages, the revolving speed of the roll is 400~500rpm, the throw-on pressure of the roll is 250~
320N, finishing temperature are 300~380 DEG C, and the cleaning frequency of the cleaning roller is 20~30 frequencys/min.
4. according to the production method of the described in any item aluminium alloy anode oxide plates of claim 2~3, which is characterized in that described
The injection flow of emulsion is the 3%~5% of the emulsion total flow, and injection pressure is 0.3~0.6MPa, the emulsion
Fat content percentage be 24~25%.
5. the production method of aluminium alloy anode oxide plate according to claim 1, which is characterized in that the aluminium alloy is former
Expect that melting includes: by aluminium alloy stock melting under conditions of 720~750 DEG C, the aluminium alloy stock 50%~60%
When being molten into molten aluminum, 30~40min is stirred, after the aluminium alloy stock all melts, the manganese as component additive agent is added
Agent.
6. the production method of aluminium alloy anode oxide plate according to claim 1, which is characterized in that the aluminium described in melting closes
It further include that multistage purification processing is carried out to the melt, at the multistage purification before casting the melt after golden raw material
Reason includes:
Gaseous mixture refining: the melt is gone into progress furnace side Ar and Cl in holding furnace2Gaseous mixture refining；
Degasification removal of impurities: the melt is subjected to melt degasification through SNIF degassing apparatus；Then the foam of 30PPI and 50PPI is made pottery
Porcelain plate is separately heated to 600~750 DEG C, melts the melt successively by the foamed ceramic panel of the 30PPI and 50PPI
Body filtering；And
Crystal grain refinement: being added alterant into the melt, the mass ratio of the melt and the alterant be 100:0.01~
0.03。
7. the production method of aluminium alloy anode oxide plate according to claim 1, which is characterized in that cold rolling, annealed tensile
The intermediate coiled material generates deformation, and the deformation quantity of the deformation includes at least one of Cold Reduction and tensile deformation amount,
The Cold Reduction is 55~75%；The tensile deformation amount is 0.5~1.5%.
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