CN106350714A - High-end anodic oxidation aluminum strip for 3C (computer, communication and consumer electronic) industry and production method of high-end anodic oxidation aluminum strip - Google Patents

High-end anodic oxidation aluminum strip for 3C (computer, communication and consumer electronic) industry and production method of high-end anodic oxidation aluminum strip Download PDF

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CN106350714A
CN106350714A CN201610735720.1A CN201610735720A CN106350714A CN 106350714 A CN106350714 A CN 106350714A CN 201610735720 A CN201610735720 A CN 201610735720A CN 106350714 A CN106350714 A CN 106350714A
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anodic oxidation
thickness
aluminium
industry
production
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CN201610735720.1A
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CN106350714B (en
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李国锋
何延武
宋喜坡
余克斌
马建鹏
乔文杰
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河南明泰铝业股份有限公司
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/06Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08Alloys based on aluminium with magnesium as the next major constituent with silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • C22C1/026Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/06Alloys based on aluminium with magnesium as the next major constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/02Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047Changing 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

Abstract

The invention discloses a high-end anodic oxidation aluminum strip for the 3C (computer, communication and consumer electronic) industry and a production method of the high-end anodic oxidation aluminum strip. Chemical alloy elements of the aluminum strip comprise Si, Fe, 0.04-0.08% of Cu, Mn, 2.3-2.5% of Mg, Cr, Zn, 0.008-0.012% of Ti and the balance Al, wherein the percent of Si is smaller than or equal to 0.03%, the percent of Fe is smaller than or equal to 0.05%, the percent of Mn is smaller than or equal to 0.01%, the percent of Cr is smaller than or equal to 0.01%, and the percent of Zn is small than or equal to 0.01%. The production method includes: smelting the aluminum alloy elements to obtain aluminum alloy ingots by casting; subjecting the aluminum ingots to end sawing and surface milling; performing soaking and heating treatment; sequentially carrying out cold rough rolling and hot finish rolling; subjecting aluminum alloy coils to intermediate annealing or stabilization treatment, and finally cleaning, dividing and packaging. By the aluminum strip produced according to the production method, quality problems of high internal hydrogen content, texture nonuniformity, surface black lines, streaks and the like in production of aluminum alloy strips for electronic appliances in the prior art can be solved effectively.

Description

A kind of 3c industry high-end anodic oxidation aluminium strip and its production method

First, technical field:

The present invention relates to a kind of aluminium alloy and its production method, more particularly to a kind of 3c industry is used with high-end anodic oxidation Aluminium strip and its production method.

2nd, background technology:

At present the common shell materials of electronic product 3c product have: almag, titanium alloy, cabinet have carbon fiber and Abs engineering plastics.From the point of view of electronic product various types of materials, almag shell is the most attractive in appearance beyond doubt, environmental protection, easy processing, valency The low advantage of lattice.

Existing market is used for the requirement more and more higher on the surface such as electronics, electrical equipment, packaging material, surface pattern, roughness, no Can there are scuffing, black silk, white point etc., this product can be described as no defective product, 5252 high-end oxidation item kind purposes mainly collect In in phone housing, mobile phone key, air-conditioning panel, notebook computer shell, keyboard etc., 5252 high-end oxidation material product treatment techniques For: fed anode laser engraving printing pvd nickel sheet plating (wire drawing) colouring, shell glossiness can add Enter delustering agent to realize surface shading value, housing can be made to be processed into multiple different colours using after anodic oxidation colouring.3c product Harsh to material requirements, electronics, collector surface are not allow for by scratch, scuffing, hole, slag inclusion, black silk, secret note, and require Structure property is good.

3rd, content of the invention:

The technical problem to be solved in the present invention is: provides a kind of 3c industry high-end anodic oxidation aluminium strip and its producer Method.The aluminium strip being produced using technical solution of the present invention, can effectively solve the problem that the electronic apparatus aluminium alloy existing for prior art Because of quality problems such as internal hydrogen content height, uneven microstructure, the black silk in surface, stripeds in aluminium strip production.

In order to solve the above problems, the present invention adopts the technical scheme that:

The present invention provides a kind of 3c industry with high-end anodic oxidation aluminium strip, is represented with weight percentage, and described 3c produces Industry is elementary composition with the chemical alloying of high-end anodic oxidation aluminium strip to be:

Si≤0.03%, fe≤0.05%, cu 0.04~0.08%, mn≤0.01, mg 2.3~2.5%, cr≤ 0.01%, zn≤0.01%, ti 0.008~0.012%, balance of al.

Additionally, it is provided a kind of 3c industry production method of high-end anodic oxidation aluminium strip, described production method include with Lower step:

A, cast aluminium alloy gold ingot casting: the proportion scale being first according to above-mentioned 3c industry high-end anodic oxidation aluminium strip is carried out Dispensing, the various raw materials prepared is added melting furnace, carries out melting under the conditions of 720~760 DEG C;After all melting, 690~ Under the conditions of 715 DEG C, aluminium alloy cast ingot is cast as using casting machine;

B, saw head, milling face: each for aluminium alloy cast ingot two saw is removed 300mm, then carries out milling face it is desirable to big face one side milling face Amount >=20mm, little face one side milling face amount >=10mm, ingot casting both sides thickness difference≤3mm;

C, the aluminium alloy cast ingot behind milling face is carried out soaking, heat treated;

D, the aluminium alloy cast ingot after heat treated is carried out successively hot roughing, hot finishing;

E, o state aluminium alloy coiled material after the finish rolling of step d or h32 aluminum alloy coiled materials are carried out cold rolling;

F, to step e, the o state aluminium alloy coiled material after cold rolling carries out intermediate annealing;To h32 state aluminum after cold rolling for step e Alloy rolled material is carried out, stabilizing treatment;

G, step f is annealed after o state aluminium alloy coiled material be carried out, bundling packing;After stabilizing treatment H32 state aluminium alloy coiled material carries out bundling and packs.

According to the above-mentioned 3c industry production method of high-end anodic oxidation aluminium strip, soaking in step c, heat treated Detailed process is: the aluminium alloy cast ingot behind milling face is carried out heat treated using soaking pit, the first stage: controls soaking pit furnace gas Temperature is 630 DEG C, and aluminium alloy cast ingot temperature reaches 564~575 DEG C, is incubated 8~12 hours with this understanding;Second stage: stop Only intensification operation, is incubated 4~6 hours when aluminium alloy cast ingot temperature is down to 490~510 DEG C, directly comes out of the stove after insulation.

According to the above-mentioned 3c industry production method of high-end anodic oxidation aluminium strip, roll during hot roughing described in step d Passage processed is 11~13 passages, and emulsion pressure is 0.4~0.6mpa, and concentration is 5~6%, and when roughing completes, temperature control is 390~450 DEG C;During described hot finishing emulsion pressure be 0.4~0.6mpa, concentration be 5~6%, compressed air pressure be 0.2~ 0.4mpa, after hot finishing, finishing temperature is 310~330 DEG C, and after the completion of hot rolling, the thickness of aluminum alloy plate materials is 6.0mm.

According to the above-mentioned 3c industry production method of high-end anodic oxidation aluminium strip, described in step e cold rolling for o state Aluminium sheet is cold rolling or h32 state aluminium sheet is cold rolling.

According to the above-mentioned 3c industry production method of high-end anodic oxidation aluminium strip, the cold rolling tool of described o state aluminium sheet Body process is: cold rolling be divided into 4 passages to be rolled, the 1st passage aluminium sheet import thickness be 6.0mm, exit thickness be 4.2mm; 2nd passage aluminium sheet import thickness is 4.2mm, and exit thickness is 2.8mm;3rd passage aluminium sheet import thickness is 2.8mm, and outlet is thick Spend for 1.5mm;4th passage aluminium sheet import thickness is 1.5mm, and exit thickness is 0.8mm.

According to the above-mentioned 3c industry production method of high-end anodic oxidation aluminium strip, described h32 state aluminium sheet is cold rolling Detailed process is: cold rolling be divided into 4 passages to be rolled, the 1st passage aluminium sheet import thickness is 6.0mm, and exit thickness is 4.0mm;2nd passage aluminium sheet import thickness is 4.0mm, and exit thickness is 2.0mm;3rd passage aluminium sheet import thickness is 2.0mm, Exit thickness is 1.15mm;Carry out intermediate annealing after 3rd passes, then carry out the 4th passes, the 4th passage aluminium sheet enters Mouth thickness is 1.15mm, and exit thickness is 0.8mm.

According to the above-mentioned 3c industry production method of high-end anodic oxidation aluminium strip, the detailed process of described intermediate annealing For: intermediate annealing, 480 DEG C of furnace gas constant temperature are carried out using nitrogen protection stove, it is little that metal temperature reaches insulation 4 when 320~330 DEG C When, natural cooling of coming out of the stove.

According to the above-mentioned 3c industry production method of high-end anodic oxidation aluminium strip, intermediate annealing described in step f Detailed process is: carries out intermediate annealing using nitrogen protection stove, 480 DEG C of furnace gas constant temperature, when metal temperature reaches 320~330 DEG C Insulation 4 hours, natural cooling of coming out of the stove.

According to the above-mentioned 3c industry production method of high-end anodic oxidation aluminium strip, stabilizing treatment described in step f For: heat treated is carried out using n 2 annealing stove, furnace gas temperature is 120 DEG C, be incubated 5h under this temperature conditions, go out after insulation Stove.

The positive beneficial effect of the present invention:

1st, the aluminium strip utilizing technical solution of the present invention to produce, can effectively solve the problem that the electronic apparatus in the presence of prior art Because of quality problems such as internal hydrogen content height, uneven microstructure, the black silk in surface, stripeds in being produced with aluminium alloy aluminium strip.

2nd, the present invention carries out production operation using rafifinal, for eliminating the shadow to melt impurity for the instrument in the middle of melting and casting Ring, all meltings and casting tool brush boron nitride coating are simultaneously dried and carried out operation again, using in bottom type permanent magnetic stirring and stove from The method of dynamic refine is such that it is able to effectively eliminating the hydrogen content height because artificial degasification causes, guaranteeing that melt hydrogen content is less than 0.12ml/100g (al), permanent magnetic stirring technology guarantees composition uniformly, prevents chemical composition from assembling, hot finishing is produced using Germany Spray beam be lubricated, a series of defects such as the no black silk in aluminium strip surface, secret note, viscous aluminum, striped, thick difference be big can be effectively improved, Lay the foundation for cold rolling high-quality band.

3rd, referred to the correlated performance technology of high-end anodic oxidation aluminium strip using the 3c industry that technical solution of the present invention produces Mark refers to table 1.

The correlated performance technical specification of table 1 product of the present invention

Alloy State Thickness/mm Tensile strength/mpa Elongation percentage/% 5252 o 0.8-1.5 175-195 > 25 5252 h32 0.8-1.5 220-240 > 9

4th, specific embodiment:

The present invention is expanded on further with reference to embodiments, but is not intended to limit present disclosure.

Embodiment 1:

3c industry of the present invention, with high-end anodic oxidation aluminium strip, is represented with weight percentage, the chemical alloying unit of aluminium strip Element consists of:

Si≤0.03%, fe≤0.05%, cu 0.06%, mn≤0.01, mg 2.4%, cr≤0.01%, zn≤ 0.01%, ti 0.0095%, balance of al.

Embodiment 2:

3c industry of the present invention, with high-end anodic oxidation aluminium strip, is represented with weight percentage, the chemical alloying unit of aluminium strip Element consists of:

Si≤0.03%, fe≤0.05%, cu 0.04%, mn≤0.01, mg 2.3%, cr≤0.01%, zn≤ 0.01%, ti 0.008%, balance of al.

Embodiment 3:

3c industry of the present invention, with high-end anodic oxidation aluminium strip, is represented with weight percentage, the chemical alloying unit of aluminium strip Element consists of:

Si≤0.03%, fe≤0.05%, cu 0.08%, mn≤0.01, mg 2.5%, cr≤0.01%, zn≤ 0.01%, ti 0.012%, balance of al.

Embodiment 4:

The production method of high-end anodic oxidation aluminium strip of 3c industry described in the embodiment of the present invention 1, this production method detailed Thin step is as follows:

A, cast aluminium alloy gold ingot casting: be first according to the dispensing with high-end anodic oxidation aluminium strip for the 3c industry described in embodiment 1 Ratio carries out dispensing, the various raw materials prepared is added melting furnace, carries out melting under the conditions of 740 DEG C;After all melting, Under the conditions of 700 DEG C, aluminium alloy cast ingot is cast as using casting machine;

B, saw head, milling face: each for aluminium alloy cast ingot two saw is removed 300mm, then carries out milling face it is desirable to big face one side milling face Amount >=20mm, little face one side milling face amount >=10mm, ingot casting both sides thickness difference≤3mm;

C, the aluminium alloy cast ingot behind milling face is carried out soaking, heat treated;

Described soaking, the detailed process of heat treated are: the aluminium alloy cast ingot behind milling face is heated using soaking pit Process, the first stage: control soaking pit furnace gas temperature to be 630 DEG C, aluminium alloy cast ingot temperature reaches 570 DEG C, protects with this understanding Temperature 10 hours;Second stage: stop intensification operation, be incubated 5 hours when aluminium alloy cast ingot temperature is down to 500 DEG C, straight after insulation Pick out stove;

D, the aluminium alloy cast ingot after heat treated is carried out successively hot roughing, hot finishing;

12 passages of rolling pass during described hot roughing, emulsion pressure is 0.5mpa, and concentration is 5.5%, when roughing completes Temperature control is 420 DEG C;During described hot finishing, emulsion pressure is 0.5mpa, and concentration is 5.5%, and compressed air pressure is 0.3mpa, after hot finishing, finishing temperature is 320 DEG C, and after the completion of hot rolling, the thickness of aluminum alloy plate materials is 6.0mm;

E, o state aluminium alloy coiled material after the finish rolling of step d or h32 aluminum alloy coiled materials are carried out cold rolling;

The cold rolling detailed process of described o state aluminium sheet is: cold rolling be divided into 4 passages to be rolled, the 1st passage aluminium sheet import Thickness is 6.0mm, and exit thickness is 4.2mm;2nd passage aluminium sheet import thickness is 4.2mm, and exit thickness is 2.8mm;3rd road Secondary aluminium sheet import thickness is 2.8mm, and exit thickness is 1.5mm;4th passage aluminium sheet import thickness is 1.5mm, and exit thickness is 0.8m;

The cold rolling detailed process of described h32 state aluminium sheet is: cold rolling be divided into 4 passages to be rolled, the 1st passage aluminium sheet enters Mouth thickness is 6.0mm, and exit thickness is 4.0mm;2nd passage aluminium sheet import thickness is 4.0mm, and exit thickness is 2.0mm;3rd Passage aluminium sheet import thickness is 2.0mm, and exit thickness is 1.15mm;Carry out after 3rd passes intermediate annealing (intermediate annealing Detailed process is: carries out intermediate annealing using nitrogen protection stove, 480 DEG C of furnace gas constant temperature, when metal temperature reaches 320~330 DEG C Insulation 4 hours, natural cooling of coming out of the stove), then carry out the 4th passes, the 4th passage aluminium sheet import thickness is 1.15mm, outlet Thickness is 0.8mm;

F, to step e, the o state aluminium alloy coiled material after cold rolling carries out intermediate annealing (detailed process of intermediate annealing is: adopts Carry out intermediate annealing, 480 DEG C of furnace gas constant temperature with nitrogen protection stove, metal temperature reaches and is incubated 4 hours when 320~330 DEG C, comes out of the stove Natural cooling);H32 state aluminium alloy coiled material after cold rolling for step e is carried out, stabilizing treatment is (using n 2 annealing stove Carry out heat treated, furnace gas temperature is 120 DEG C, be incubated 5h under this temperature conditions, come out of the stove after insulation);

G, step f is annealed after o state aluminium alloy coiled material be carried out, bundling packing;After stabilizing treatment H32 state aluminium alloy coiled material carries out bundling and packs.

Embodiment 5:

The production method of high-end anodic oxidation aluminium strip of 3c industry described in the embodiment of the present invention 2, this production method detailed Thin step is as follows:

A, cast aluminium alloy gold ingot casting: be first according to the dispensing with high-end anodic oxidation aluminium strip for the 3c industry described in embodiment 2 Ratio carries out dispensing, the various raw materials prepared is added melting furnace, carries out melting under the conditions of 720 DEG C;After all melting, Under the conditions of 690 DEG C, aluminium alloy cast ingot is cast as using casting machine;

B, saw head, milling face: each for aluminium alloy cast ingot two saw is removed 300mm, then carries out milling face it is desirable to big face one side milling face Amount >=20mm, little face one side milling face amount >=10mm, ingot casting both sides thickness difference≤3mm;

C, the aluminium alloy cast ingot behind milling face is carried out soaking, heat treated;

Described soaking, the detailed process of heat treated are: the aluminium alloy cast ingot behind milling face is heated using soaking pit Process, the first stage: control soaking pit furnace gas temperature to be 630 DEG C, aluminium alloy cast ingot temperature reaches 564 DEG C, protects with this understanding Temperature 12 hours;Second stage: stop intensification operation, be incubated 6 hours when aluminium alloy cast ingot temperature is down to 490 DEG C, straight after insulation Pick out stove;

D, the aluminium alloy cast ingot after heat treated is carried out successively hot roughing, hot finishing;

11 passages of rolling pass during described hot roughing, emulsion pressure is 0.6mpa, and concentration is 6%, temperature when roughing completes Degree is controlled to 450 DEG C;During described hot finishing, emulsion pressure is 0.6mpa, and concentration is 6%, and compressed air pressure is 0.4mpa, heat After finish rolling, finishing temperature is 330 DEG C, and after the completion of hot rolling, the thickness of aluminum alloy plate materials is 6.0mm;

E, o state aluminium alloy coiled material after the finish rolling of step d or h32 aluminum alloy coiled materials are carried out cold rolling;

The cold rolling detailed process of described o state aluminium sheet is: cold rolling be divided into 4 passages to be rolled, the 1st passage aluminium sheet import Thickness is 6.0mm, and exit thickness is 4.2mm;2nd passage aluminium sheet import thickness is 4.2mm, and exit thickness is 2.8mm;3rd road Secondary aluminium sheet import thickness is 2.8mm, and exit thickness is 1.5mm;4th passage aluminium sheet import thickness is 1.5mm, and exit thickness is 0.8m;

The cold rolling detailed process of described h32 state aluminium sheet is: cold rolling be divided into 4 passages to be rolled, the 1st passage aluminium sheet enters Mouth thickness is 6.0mm, and exit thickness is 4.0mm;2nd passage aluminium sheet import thickness is 4.0mm, and exit thickness is 2.0mm;3rd Passage aluminium sheet import thickness is 2.0mm, and exit thickness is 1.15mm;Carry out after 3rd passes intermediate annealing (intermediate annealing Detailed process is: carries out intermediate annealing using nitrogen protection stove, 480 DEG C of furnace gas constant temperature, when metal temperature reaches 320~330 DEG C Insulation 4 hours, natural cooling of coming out of the stove), then carry out the 4th passes, the 4th passage aluminium sheet import thickness is 1.15mm, outlet Thickness is 0.8mm;

F, to step e, the o state aluminium alloy coiled material after cold rolling carries out intermediate annealing (detailed process of intermediate annealing is: adopts Carry out intermediate annealing, 480 DEG C of furnace gas constant temperature with nitrogen protection stove, metal temperature reaches and is incubated 4 hours when 320~330 DEG C, comes out of the stove Natural cooling);H32 state aluminium alloy coiled material after cold rolling for step e is carried out, stabilizing treatment is (using n 2 annealing stove Carry out heat treated, furnace gas temperature is 120 DEG C, be incubated 5h under this temperature conditions, come out of the stove after insulation);

G, step f is annealed after o state aluminium alloy coiled material be carried out, bundling packing;After stabilizing treatment H32 state aluminium alloy coiled material carries out bundling and packs.

Embodiment 6:

The production method of high-end anodic oxidation aluminium strip of 3c industry described in the embodiment of the present invention 3, this production method detailed Thin step is as follows:

A, cast aluminium alloy gold ingot casting: be first according to the dispensing with high-end anodic oxidation aluminium strip for the 3c industry described in embodiment 3 Ratio carries out dispensing, the various raw materials prepared is added melting furnace, carries out melting under the conditions of 760 DEG C;After all melting, Under the conditions of 715 DEG C, aluminium alloy cast ingot is cast as using casting machine;

B, saw head, milling face: each for aluminium alloy cast ingot two saw is removed 300mm, then carries out milling face it is desirable to big face one side milling face Amount >=20mm, little face one side milling face amount >=10mm, ingot casting both sides thickness difference≤3mm;

C, the aluminium alloy cast ingot behind milling face is carried out soaking, heat treated;

Described soaking, the detailed process of heat treated are: the aluminium alloy cast ingot behind milling face is heated using soaking pit Process, the first stage: control soaking pit furnace gas temperature to be 630 DEG C, aluminium alloy cast ingot temperature reaches 575 DEG C, protects with this understanding Temperature 8 hours;Second stage: stop intensification operation, be incubated 4 hours when aluminium alloy cast ingot temperature is down to 510 DEG C, after insulation directly Come out of the stove;

D, the aluminium alloy cast ingot after heat treated is carried out successively hot roughing, hot finishing;

13 passages of rolling pass during described hot roughing, emulsion pressure is 0.4mpa, and concentration is 5%, temperature when roughing completes Degree is controlled to 390 DEG C;During described hot finishing, emulsion pressure is 0.4mpa, and concentration is 5%, and compressed air pressure is 0.2mpa, heat After finish rolling, finishing temperature is 310 DEG C, and after the completion of hot rolling, the thickness of aluminum alloy plate materials is 6.0mm;

E, o state aluminium alloy coiled material after the finish rolling of step d or h32 aluminum alloy coiled materials are carried out cold rolling;

The cold rolling detailed process of described o state aluminium sheet is: cold rolling be divided into 4 passages to be rolled, the 1st passage aluminium sheet import Thickness is 6.0mm, and exit thickness is 4.2mm;2nd passage aluminium sheet import thickness is 4.2mm, and exit thickness is 2.8mm;3rd road Secondary aluminium sheet import thickness is 2.8mm, and exit thickness is 1.5mm;4th passage aluminium sheet import thickness is 1.5mm, and exit thickness is 0.8m;

The cold rolling detailed process of described h32 state aluminium sheet is: cold rolling be divided into 4 passages to be rolled, the 1st passage aluminium sheet enters Mouth thickness is 6.0mm, and exit thickness is 4.0mm;2nd passage aluminium sheet import thickness is 4.0mm, and exit thickness is 2.0mm;3rd Passage aluminium sheet import thickness is 2.0mm, and exit thickness is 1.15mm;Carry out after 3rd passes intermediate annealing (intermediate annealing Detailed process is: carries out intermediate annealing using nitrogen protection stove, 480 DEG C of furnace gas constant temperature, when metal temperature reaches 320~330 DEG C Insulation 4 hours, natural cooling of coming out of the stove), then carry out the 4th passes, the 4th passage aluminium sheet import thickness is 1.15mm, outlet Thickness is 0.8mm;

F, to step e, the o state aluminium alloy coiled material after cold rolling carries out intermediate annealing (detailed process of intermediate annealing is: adopts Carry out intermediate annealing, 480 DEG C of furnace gas constant temperature with nitrogen protection stove, metal temperature reaches and is incubated 4 hours when 320~330 DEG C, comes out of the stove Natural cooling);H32 state aluminium alloy coiled material after cold rolling for step e is carried out, stabilizing treatment is (using n 2 annealing stove Carry out heat treated, furnace gas temperature is 120 DEG C, be incubated 5h under this temperature conditions, come out of the stove after insulation);

G, step f is annealed after o state aluminium alloy coiled material be carried out, bundling packing;After stabilizing treatment H32 state aluminium alloy coiled material carries out bundling and packs.

Claims (10)

1. a kind of high-end anodic oxidation aluminium strip of 3c industry is it is characterised in that represented with weight percentage, described 3c industry Elementary composition with the chemical alloying of high-end anodic oxidation aluminium strip it is:
Si≤0.03%, fe≤0.05%, cu 0.04~0.08%, mn≤0.01, mg 2.3~2.5%, cr≤0.01%, Zn≤0.01%, ti 0.008~0.012%, balance of al.
2. a kind of 3c industry with the production method of high-end anodic oxidation aluminium strip it is characterised in that described production method include with Lower step:
A, cast aluminium alloy gold ingot casting: be first according to the charge ratio with high-end anodic oxidation aluminium strip for the 3c industry described in claim 1 Example carries out dispensing, the various raw materials prepared is added melting furnace, carries out melting under the conditions of 720~760 DEG C;After all melting, Under the conditions of 690~715 DEG C, aluminium alloy cast ingot is cast as using casting machine;
B, saw head, milling face: each for aluminium alloy cast ingot two saw is removed 300mm, then carry out milling face it is desirable to big face one side milling face amount >= 20mm, little face one side milling face amount >=10mm, ingot casting both sides thickness difference≤3mm;
C, the aluminium alloy cast ingot behind milling face is carried out soaking, heat treated;
D, the aluminium alloy cast ingot after heat treated is carried out successively hot roughing, hot finishing;
E, o state aluminium alloy coiled material after the finish rolling of step d or h32 aluminum alloy coiled materials are carried out cold rolling;
F, to step e, the o state aluminium alloy coiled material after cold rolling carries out intermediate annealing;To h32 state aluminium alloy after cold rolling for step e Coiled material is carried out, stabilizing treatment;
G, step f is annealed after o state aluminium alloy coiled material be carried out, bundling packing;By the h32 shape after stabilizing treatment State aluminum alloy coiled materials carry out bundling and pack.
3. 3c industry according to claim 2 with the production method of high-end anodic oxidation aluminium strip it is characterised in that step In c, soaking, the detailed process of heat treated are: the aluminium alloy cast ingot behind milling face is carried out heat treated using soaking pit, first Stage: control soaking pit furnace gas temperature be 630 DEG C, aluminium alloy cast ingot temperature reaches 564~575 DEG C, with this understanding insulation 8~ 12 hours;Second stage: stop intensification operation, be incubated 4~6 hours when aluminium alloy cast ingot temperature is down to 490~510 DEG C, protect Directly come out of the stove after temperature.
4. 3c industry according to claim 2 with the production method of high-end anodic oxidation aluminium strip it is characterised in that step Described in d, during hot roughing, rolling pass is 11~13 passages, and emulsion pressure is 0.4~0.6mpa, and concentration is 5~6%, roughing When completing, temperature control is 390~450 DEG C;During described hot finishing, emulsion pressure is 0.4~0.6mpa, and concentration is 5~6%, pressure Contracting air pressure is 0.2~0.4mpa, and after hot finishing, finishing temperature is 310~330 DEG C, the thickness of aluminum alloy plate materials after the completion of hot rolling Spend for 6.0mm.
5. 3c industry according to claim 2 with the production method of high-end anodic oxidation aluminium strip it is characterised in that step Cold rolling cold rolling or h32 state aluminium sheet is cold rolling for o state aluminium sheet described in e.
6. 3c industry according to claim 5 with the production method of high-end anodic oxidation aluminium strip it is characterised in that described The cold rolling detailed process of o state aluminium sheet is: cold rolling be divided into 4 passages to be rolled, the 1st passage aluminium sheet import thickness be 6.0mm, Exit thickness is 4.2mm;2nd passage aluminium sheet import thickness is 4.2mm, and exit thickness is 2.8mm;3rd passage aluminium sheet import is thick Spend for 2.8mm, exit thickness is 1.5mm;4th passage aluminium sheet import thickness is 1.5mm, and exit thickness is 0.8mm.
7. 3c industry according to claim 5 with the production method of high-end anodic oxidation aluminium strip it is characterised in that described The cold rolling detailed process of h32 state aluminium sheet is: cold rolling be divided into 4 passages to be rolled, the 1st passage aluminium sheet import thickness is 6.0mm, exit thickness is 4.0mm;2nd passage aluminium sheet import thickness is 4.0mm, and exit thickness is 2.0mm;3rd passage aluminium sheet Import thickness is 2.0mm, and exit thickness is 1.15mm;Carry out intermediate annealing after 3rd passes, then carry out the 4th passage and roll System, the 4th passage aluminium sheet import thickness is 1.15mm, and exit thickness is 0.8mm.
8. 3c industry according to claim 7 with the production method of high-end anodic oxidation aluminium strip it is characterised in that described The detailed process of intermediate annealing is: carries out intermediate annealing, 480 DEG C of furnace gas constant temperature using nitrogen protection stove, metal temperature reaches 320 It is incubated 4 hours, natural cooling of coming out of the stove when~330 DEG C.
9. 3c industry according to claim 2 with the production method of high-end anodic oxidation aluminium strip it is characterised in that step The detailed process of intermediate annealing described in f is: carries out intermediate annealing, 480 DEG C of furnace gas constant temperature, metal temperature using nitrogen protection stove Reach and be incubated 4 hours when 320~330 DEG C, natural cooling of coming out of the stove.
10. 3c industry according to claim 2 with the production method of high-end anodic oxidation aluminium strip it is characterised in that step Described in rapid f, stabilizing treatment is: carries out heat treated using n 2 annealing stove, furnace gas temperature is 120 DEG C, in this temperature conditions Lower insulation 5h, comes out of the stove after insulation.
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