CN105695821B - A kind of high intensity anodic oxidation aluminium alloy strips and preparation method thereof - Google Patents

A kind of high intensity anodic oxidation aluminium alloy strips and preparation method thereof Download PDF

Info

Publication number
CN105695821B
CN105695821B CN201610081536.XA CN201610081536A CN105695821B CN 105695821 B CN105695821 B CN 105695821B CN 201610081536 A CN201610081536 A CN 201610081536A CN 105695821 B CN105695821 B CN 105695821B
Authority
CN
China
Prior art keywords
aluminium alloy
finished
anodic oxidation
intensity
alloy strips
Prior art date
Application number
CN201610081536.XA
Other languages
Chinese (zh)
Other versions
CN105695821A (en
Inventor
江钟宇
黄瑞银
吴建新
徐始祥
唐远路
冉继龙
Original Assignee
中铝瑞闽股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中铝瑞闽股份有限公司 filed Critical 中铝瑞闽股份有限公司
Priority to CN201610081536.XA priority Critical patent/CN105695821B/en
Publication of CN105695821A publication Critical patent/CN105695821A/en
Application granted granted Critical
Publication of CN105695821B publication Critical patent/CN105695821B/en

Links

Classifications

    • 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
    • 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 belongs to the preparation field of aluminium and aluminium alloy sheet and strip, and in particular to a kind of high intensity anodic oxidation aluminium alloy strips and preparation method thereof.The composition of aluminium alloy strips is:Si≤0.08wt%, Fe≤0.15wt%, 0.05 ~ 0.20wt% of Fe/Si=1 ~ 3, Cu, Mn≤0.05wt%, Mg 2.0 ~ 3.5wt%, Cr≤0.25wt%, Ti≤0.05wt%;Surplus is Al.After dispensing, by cold rolling processing technology, yield strength is made more than anode aluminum alloy sheets and strips highlighted after 230MPa, anode, is suitable for the appearance member of the products such as electronic apparatus, such as mobile phone and computer casing, have widened application of the aluminium alloy strips in field of electronic devices.

Description

A kind of high intensity anodic oxidation aluminium alloy strips and preparation method thereof

Technical field

The invention belongs to the preparation field of aluminium and aluminium alloy sheet and strip, and in particular to a kind of high intensity anodic oxidation aluminium alloy Band and preparation method thereof.

Background technology

Aluminium and aluminium alloy sheet and strip is widely used in making the various decorations such as lighting decoration controlled, electronic product casing, casket Outward appearance and inside gadget.But anodic oxidation is one of " high, precision and frontier " product recognized within the industry with aluminium and aluminium alloy cold-strip, Technological requirement is high, and quality control difficulty is big.

In the prior art, usual anode strap selects 5052 or 1050 with aluminium alloy strips, but it is not enough to there is intensity It is partially dark with color and luster after anodic oxidation, and also there is after thin sandblasting anode material line defect.And as electronics industry is to frivolous, U.S. The growth requirement of sight, disadvantages described above constrains development of the aluminium and aluminium alloy sheet and strip in electronics industry.Therefore, the present invention passes through to changing The improvement studied point, coordinates corresponding cold rolling processing technology, produces yield strength more than sun highlighted after 230 MPa, anode Pole aluminum alloy sheets and strips.

The content of the invention

In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of high intensity anodic oxidation aluminium alloy strips And preparation method thereof.The aluminium alloy strips yield strength is more than 230 MPa, while surface is fine and smooth after anode, surface brightness is splendid, It can be widely used for the appearance member of the products such as electronic apparatus, such as mobile phone and computer casing.

To achieve the above object, the present invention is adopted the following technical scheme that:

A kind of high intensity anodic oxidation aluminium alloy strips, its composition is:Si≤0.08wt%, Fe≤0.15wt%, Fe/Si =1 ~ 3, Cu 0.05 ~ 0.20wt%, Mn≤0.05wt%, Mg 2.0 ~ 3.5wt%, Cr≤0.25wt%, Ti≤0.05wt%;Surplus is Al。

Described high intensity anodic oxidation aluminium alloy strips, its yield strength >=230MPa.

A kind of method for preparing high intensity anodic oxidation aluminium alloy strips as described above, comprises the following steps:

1)Aluminium ingot melts by smelting furnace, after dispensing, carries out semi-continuous casting;

2)Ingot casting enters heating furnace behind sawing, milling face, and then 480-580 DEG C of metal temperature, time 1-30h comes out of the stove Hot rolling, hot rolling finishing temperature is 250-350 DEG C, and hot rolled thickness is 3.0-10.0mm;

3)Coiled material direct cold rolling after hot rolling is to finished product thickness, and then cold rolling total reduction >=10% carries out finished products, 150-300 DEG C of temperature, finished product;Or the coiled material after hot rolling is by the cold rolling of 10-70%, then intermediate annealing is carried out, centre is moved back Fiery temperature is 300-500 DEG C, and soaking time is 30s-4h, is then cold rolled to finished product thickness, and cold rolling reduction ratio is 10 ~ 80%, finally By 150-300 DEG C of finished products, finished product.

Step 3)The surface roughness of obtained finished product is controlled within 0.3 μm of Ra.

The beneficial effects of the present invention are:

1)The present invention is coordinated corresponding cold rolling processing technology, produced by the improvement to aluminium alloy strips chemical composition Yield strength is more than 230 MPa, highlighted anode aluminum alloy sheets and strips after anode;

2)The aluminium alloy strips of the present invention are after anodic oxidation, the fine and smooth light of surface color, and yield strength is high, can It is widely used in the appearance member of the products such as electronic apparatus, such as mobile phone and computer casing.

Embodiment

The present invention further illustrates the present invention with the following example, but protection scope of the present invention is not limited to following reality Apply example.

Embodiment 1

A kind of anodic oxidation aluminium alloy strips, its composition is Si 0.08wt%, Fe 0.15wt%, Cu 0.10wt%, Mn 0.05wt%, Mg 2.0wt%, Cr 0.25wt%, Ti 0.05wt%;Surplus is Al.

Preparation method, comprises the following steps:

1)Aluminium ingot melts by smelting furnace, after dispensing, carries out semi-continuous casting;

2)Ingot casting enters heating furnace, 520 DEG C of metal temperature, time 15h, hot rolling of then coming out of the stove, heat behind sawing, milling face Finishing temperature is rolled for 300 DEG C, and hot rolled thickness is 6.0mm;

3)Coiled material direct cold rolling after hot rolling is to finished product thickness, and then cold rolling total reduction 20% carries out finished products, temperature 200 DEG C of degree, finished product.

The yield strength of obtained aluminium alloy strips is 230 MPa, and surface roughness is 0.25 μm of Ra.

Embodiment 2

A kind of anodic oxidation aluminium alloy strips, its composition is:The wt% of Si 0.06wt%, Fe 0.12wt%, Cu 0.05, Mn 0.02wt%, Mg 3.0 wt%, Cr 0.25wt%, Ti 0.05wt%;Surplus is Al.

Preparation method, comprises the following steps:

1)Aluminium ingot melts by smelting furnace, after dispensing, carries out semi-continuous casting;

2)Ingot casting enters heating furnace, 580 DEG C of metal temperature, time 1h, hot rolling of then coming out of the stove, heat behind sawing, milling face Finishing temperature is rolled for 250 DEG C, and hot rolled thickness is 10.0mm;

3)Coiled material after hot rolling by 40% it is cold rolling, then carry out intermediate annealing, intermediate anneal temperature is 400 DEG C, during insulation Between be 2h, be then cold rolled to finished product thickness, cold rolling reduction ratio is 20%, eventually pass 200 DEG C of finished products, finished product.

The yield strength of obtained aluminium alloy strips is 235 MPa, and surface roughness is 0.30 μm of Ra.

Embodiment 3

A kind of anodic oxidation aluminium alloy strips, its composition is:Si 0.05wt%, Fe 0.15wt%, Cu 0.20wt%, Mn 0.04wt%, Mg 3.5wt%, Cr 0.20wt%, Ti 0.03wt%;Surplus is Al.

Preparation method, comprises the following steps:

1)Aluminium ingot melts by smelting furnace, after dispensing, carries out semi-continuous casting;

2)Ingot casting enters heating furnace, 480 DEG C of metal temperature, time 30h, hot rolling of then coming out of the stove, heat behind sawing, milling face Finishing temperature is rolled for 350 DEG C, and hot rolled thickness is 3.0mm;

3)Coiled material direct cold rolling after hot rolling is to finished product thickness, and then cold rolling total reduction 50% carries out finished products, temperature 150 DEG C of degree, finished product.

The yield strength of obtained aluminium alloy strips is 245 MPa, and surface roughness is 0.28 μm of Ra.

The anodic oxidation aluminium that the present invention is designed is compared with tradition 5052, and it is in chemical composition and cold rolling processing technology Improved, make same thickness product with identical close elongation percentage(Punching performance)While, the surrender with superelevation is strong Degree, while surface is fine and smooth after anode, its surface brightness is splendid.

The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with Modification, should all belong to the covering scope of the present invention.

Claims (4)

1. a kind of high intensity anodic oxidation aluminium alloy strips, it is characterised in that:Its composition is:Si 0.08wt%, Fe 0.15wt%, Cu 0.10wt%, Mn 0 .05wt%, Mg 2.0wt%, Cr 0.25wt%, Ti 0.05wt%;Surplus is Al;
Or:Si 0 .06wt%, Fe 0 .12wt%, Cu 0 .05 wt%, Mn 0 .02wt%, the .0 wt%, Cr 0 of Mg 3 .25wt%, the .05wt% of Ti 0;Surplus is Al;
Or:Si 0 .05wt%, Fe 0 .15wt%, Cu 0 .20wt%, Mn 0 .04wt%, Mg 3 .5wt%, Cr 0 .20wt%, the .03wt% of Ti 0;Surplus is Al.
2. high intensity anodic oxidation aluminium alloy strips according to claim 1, it is characterised in that:Yield strength >= 230MPa。
3. a kind of method for preparing high intensity anodic oxidation aluminium alloy strips as claimed in claim 1 or 2, its feature exists In:Comprise the following steps:
1)Aluminium ingot melts by smelting furnace, after dispensing, carries out semi-continuous casting;
2)Ingot casting behind sawing, milling face enter heating furnace, 480-580 DEG C of metal temperature, time 1-30h, hot rolling of then coming out of the stove, Hot rolling finishing temperature is 250-350 DEG C, and hot rolled thickness is 3 .0-10 .0mm;
3)Coiled material direct cold rolling after hot rolling is to finished product thickness, and then cold rolling total reduction >=10% carries out finished products, temperature 150-300 DEG C, finished product;Or the coiled material after hot rolling is by the cold rolling of 10-70%, then carry out intermediate annealing, intermediate annealing temperature Spend for 300-500 DEG C, soaking time is 30s-4h, be then cold rolled to finished product thickness, cold rolling reduction ratio is 10 ~ 80%, is eventually passed 150-300 DEG C of finished products, finished product.
4. the preparation method of high intensity anodic oxidation aluminium alloy strips according to claim 3, it is characterised in that:Step Rapid 3)The surface roughness of obtained finished product is controlled within .3 μm of Ra 0.
CN201610081536.XA 2016-02-05 2016-02-05 A kind of high intensity anodic oxidation aluminium alloy strips and preparation method thereof CN105695821B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610081536.XA CN105695821B (en) 2016-02-05 2016-02-05 A kind of high intensity anodic oxidation aluminium alloy strips and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610081536.XA CN105695821B (en) 2016-02-05 2016-02-05 A kind of high intensity anodic oxidation aluminium alloy strips and preparation method thereof

Publications (2)

Publication Number Publication Date
CN105695821A CN105695821A (en) 2016-06-22
CN105695821B true CN105695821B (en) 2017-10-17

Family

ID=56222156

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610081536.XA CN105695821B (en) 2016-02-05 2016-02-05 A kind of high intensity anodic oxidation aluminium alloy strips and preparation method thereof

Country Status (1)

Country Link
CN (1) CN105695821B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108149091A (en) * 2017-12-06 2018-06-12 浙江永杰铝业有限公司 A kind of high surface anodization appearance aluminium alloy strips of high intensity and preparation method thereof

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106350714B (en) * 2016-08-27 2018-03-16 河南明泰铝业股份有限公司 A kind of 3C industries high-end anodic oxidation aluminium strip and its production method
CN106591645B (en) * 2016-11-30 2018-04-27 中铝瑞闽股份有限公司 A kind of packaging for foodstuff irregular shaped can aluminium alloy strips and preparation method thereof
CN106636775A (en) * 2016-12-20 2017-05-10 中铝瑞闽股份有限公司 Aluminum alloy strip used for powder battery shell and preparation method of aluminum alloy strip
CN106544557A (en) * 2016-12-21 2017-03-29 东莞市灿煜金属制品有限公司 A kind of manufacture method for meeting high-end oxidation requirements high-strength aluminium alloy plate band
CN106521373B (en) * 2016-12-22 2018-08-03 新疆众和股份有限公司 A kind of granule surface contral technique of anodic oxidation aluminium alloy
CN107326311A (en) * 2017-06-07 2017-11-07 中铝瑞闽股份有限公司 A kind of control method of reduction Al Mg line aluminium alloy Strip yield tensile ratios
CN107190184B (en) * 2017-07-06 2018-07-20 中铝瑞闽股份有限公司 A kind of mirror-like anodic oxidation Aluminum Plate and Strip and preparation method thereof
CN107502794A (en) * 2017-07-26 2017-12-22 中铝瑞闽股份有限公司 A kind of phone housing aluminium alloy strips and preparation method thereof
CN108118199A (en) * 2017-12-22 2018-06-05 江苏鼎胜新能源材料股份有限公司 A kind of high intensity aluminum alloy strip for refrigerator and its manufacturing method
CN108385002A (en) * 2018-04-18 2018-08-10 中铝瑞闽股份有限公司 A kind of Aluminum Bottle screw lid aluminium alloy strips and preparation method thereof
CN109207814A (en) * 2018-10-26 2019-01-15 中铝瑞闽股份有限公司 With the 5 line aluminium alloy Strips and its manufacturing method of good gloss degree after anodic oxidation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1974118A (en) * 2005-11-28 2007-06-06 镇江鼎胜铝业有限公司 Aluminium strip for capacitor shell
CN103572112A (en) * 2012-08-08 2014-02-12 住友轻金属工业株式会社 Aluminum alloy sheet that exhibits excellent surface quality after anodizing and method for producing the same
CN105189795A (en) * 2013-08-13 2015-12-23 日本轻金属株式会社 Aluminum alloy plate for high-strength alumite material and method for producing same, and aluminum alloy plate having high-strength alumite coating film attached thereto

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05271836A (en) * 1992-03-30 1993-10-19 Furukawa Alum Co Ltd Aluminum alloy material excellent in strength and ductility and its production
JP2008190021A (en) * 2007-02-07 2008-08-21 Kobe Steel Ltd Al-Mg BASED ALLOY HOT ROLLED SHEET, AND METHOD FOR PRODUCING THE SAME

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1974118A (en) * 2005-11-28 2007-06-06 镇江鼎胜铝业有限公司 Aluminium strip for capacitor shell
CN103572112A (en) * 2012-08-08 2014-02-12 住友轻金属工业株式会社 Aluminum alloy sheet that exhibits excellent surface quality after anodizing and method for producing the same
CN105189795A (en) * 2013-08-13 2015-12-23 日本轻金属株式会社 Aluminum alloy plate for high-strength alumite material and method for producing same, and aluminum alloy plate having high-strength alumite coating film attached thereto

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108149091A (en) * 2017-12-06 2018-06-12 浙江永杰铝业有限公司 A kind of high surface anodization appearance aluminium alloy strips of high intensity and preparation method thereof

Also Published As

Publication number Publication date
CN105695821A (en) 2016-06-22

Similar Documents

Publication Publication Date Title
CN102416404B (en) Method for producing cold-rolled steel strips
TWI484047B (en) Thermoforming Zinc Coated Steel Sheet
CN106086640B (en) A kind of cold rolling medium managese steel and preparation method thereof of superhigh intensity plasticity product
CN105908089B (en) A kind of hot-dip low density steel and its manufacturing method
CN104109814B (en) One has flanging property cold-rolled galvanized duplex steel plate and manufacture method
CN104775060B (en) A kind of production of aluminum alloy continuous casting tandem rolling base and heat treatment method
CN105506421B (en) A kind of Al Zn Mg Aluminum Alloy Plate materials and preparation method thereof
TWI555879B (en) Steel sheet for hot pressing, process for manufacturing the steel sheet and process for manufacturing hot-pressed member using the steel sheet
JP5162924B2 (en) Steel plate for can and manufacturing method thereof
CN105296811A (en) High-strength 6xxx aluminum alloy for mobile phone parts and machining method thereof
CN103695743B (en) A kind of magnesium alloy and preparation method thereof
JP3821074B2 (en) Magnesium alloy plate and manufacturing method thereof
JP6461798B2 (en) Manufacturing method of high magnetic flux density general-purpose directional silicon steel
CN106399762A (en) High-strength corrosion-resistant aluminum alloy profile and preparation method thereof
CN104946978B (en) A kind of color coating cold-rolled substrate for home appliance panel and its manufacture method
WO2008029497A1 (en) Magnesium alloy member and method for producing the same
CN102676938B (en) Pickling-free steel coil with even iron sheet on surface and manufacture method thereof
RU2009135392A (en) METHOD FOR THERMOMECHANICAL FORMING OF A FINITE PRODUCT WITH A VERY HIGH STRENGTH AND PRODUCED THIS PRODUCT
BR0318147A (en) magnesium alloy sheet and its production
CN104674080B (en) Magnesium-aluminium alloy material and preparation method thereof
EP2684985A1 (en) Steel sheet for hot pressing, and process for producing hot-pressed member utilizing same
UA96739C2 (en) Steel part with multiphase microstructure, method for its producing and use of part
CN107058881B (en) Inexpensive cold-rolling galvanization steel band and preparation method thereof suitable for color coating
CN104294194B (en) A kind of manufacture method improving 3104 aluminium alloy strips Erichsen numbers
CA2648429A1 (en) Method of production of hot dip galvannealed steel sheet with excellent workability, powderability, and slidability

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant