CN105624483A - Moderate-strength aluminum alloy strip used for anodic oxidation and preparation method of moderate-strength aluminum alloy strip - Google Patents

Moderate-strength aluminum alloy strip used for anodic oxidation and preparation method of moderate-strength aluminum alloy strip Download PDF

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Publication number
CN105624483A
CN105624483A CN201610081532.1A CN201610081532A CN105624483A CN 105624483 A CN105624483 A CN 105624483A CN 201610081532 A CN201610081532 A CN 201610081532A CN 105624483 A CN105624483 A CN 105624483A
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China
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aluminum alloy
finished
moderate
anodic oxidation
aluminium alloy
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CN201610081532.1A
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Chinese (zh)
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CN105624483B (en
Inventor
江钟宇
黄瑞银
吴建新
徐始祥
张宸玮
刘旺
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中铝瑞闽股份有限公司
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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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • 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 field of preparation of aluminum and aluminum alloy strips and particularly relates to a moderate-strength aluminum alloy strip used for anodic oxidation and a preparation method of the moderate-strength aluminum alloy strip. The aluminum alloy strip comprises, by weight, 0.05-0.10% of Cu, 2.0-3.0% of Mg, 0-0.05% of Si, 0-0.08% of Fe, 0-0.05% of Mn, 0-0.1% of Cr, 0-0.05% of Ti and the balance Al, wherein Fe/Si=1-3. After proportioning, the aluminum alloy plate strip used for the anode is prepared through the cold rolling technique, wherein the yield strength of the aluminum alloy plate strip is over 180 MPa, and high brightness of the anode is achieved. The moderate-strength aluminum alloy strip is suitable for outer parts of electric products and electric appliances such as mobile phones and computer shells, and the application range of the aluminum alloy strip in the field of electronic devices is widened.

Description

A kind of moderate strength 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, be specifically related to a kind of moderate strength anodic oxidation aluminium alloy strips and preparation method thereof.
Background technology
Aluminium and aluminium alloy sheet and strip is widely used in making various decorative appearances and the inside gadgets such as lighting decoration controlled, electronic product casing, casket. But anodic oxidation aluminum and aluminium alloy cold-strip are one of " high, precision and frontier " recognized within the industry products, technological requirement is high, and quality control difficulty is big.
In the prior art, usual anode strap aluminium alloy strips selects 5052 or 1050, but after all there is intensity deficiency and anodic oxidation, color and luster is partially dark, and there is also material stricture of vagina defect after thin sandblasting anode. And along with electron trade is to growth requirement frivolous, attractive in appearance, disadvantages described above constrains the aluminium and aluminium alloy sheet and strip development in electron trade. For this, the present invention, by the improvement to chemical composition, coordinates corresponding cold rolling processing technique, produces yield strength more than anode aluminum alloy sheets and strips highlighted after 180MPa, anode.
Summary of the invention
Present invention aims to the deficiencies in the prior art, it is provided that a kind of moderate strength anodic oxidation aluminium alloy strips and preparation method thereof. This aluminium alloy strips yield strength is more than 180MPa, and anode rear surface is fine and smooth simultaneously, and surface brightness is splendid, can be widely used for the appearance member of the products such as electronic apparatus, such as mobile phone and computer casing etc.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of moderate strength anodic oxidation aluminium alloy strips, its composition is: Cu0.05 ~ 0.10wt%, Mg2.0 ~ 3.0wt%, Si��0.05wt%, Fe��0.08wt%, Mn��0.05wt%, Cr��0.1wt%, Ti��0.05wt%, Fe/Si=1 ~ 3, and surplus is Al.
Described moderate strength anodic oxidation aluminium alloy strips, its yield strength >=180MPa.
A kind of method preparing moderate strength anodic oxidation aluminium alloy strips as above, comprises the following steps:
1) aluminium ingot melts through smelting furnace, after dispensing, carries out semi-continuous casting;
2) ingot casting enters heating furnace, metal temperature 480-580 DEG C, time 1-30h behind sawing, milling face, hot rolling of then coming out of the stove, and hot rolling finishing temperature is 250-350 DEG C, and hot rolled thickness is 3.0-10.0mm;
3) the coiled material direct cold rolling after hot rolling is to finished product thickness, cold rolling total reduction >=10%, then carries out finished products, temperature 150-300 DEG C, prepares finished product; Or cold rolling through 10-70% of the coiled material after hot rolling, then carry out intermediate annealing, intermediate anneal temperature is 300-500 DEG C, temperature retention time is 30s-4h, is then cold rolled to finished product thickness, and cold rolling reduction ratio is 10 ~ 80%, eventually pass the finished products of 150-300 DEG C, prepare finished product.
The Roughness Surface on Control of the finished product obtained by step 3) is within Ra0.3 ��m.
The beneficial effects of the present invention is:
1) present invention is by the improvement to aluminium alloy strips chemical composition, coordinates corresponding cold rolling processing technique, produces yield strength more than 180MPa, anode aluminum alloy sheets and strips highlighted after anode;
2) aluminium alloy strips of the present invention is after anodic oxidation, surface color exquisiteness light, and yield strength is high, can be widely used for the appearance member of the products such as electronic apparatus, such as mobile phone and computer casing etc.
Detailed description of the invention
Present invention the following example further illustrates the present invention, but protection scope of the present invention is not limited to the following example.
Embodiment 1
A kind of anodic oxidation aluminium alloy strips, its composition is: Cu0.05wt%, Mg3.0wt%, Si0.02wt%, Fe0.06wt%, Mn0.05wt%, Cr0.1wt%, Ti0.05wt%, and surplus is Al.
Preparation method, comprises the following steps:
1) aluminium ingot melts through smelting furnace, after dispensing, carries out semi-continuous casting;
2) ingot casting enters heating furnace, metal temperature 520 DEG C, time 15h, hot rolling of then coming out of the stove behind sawing, milling face, and hot rolling finishing temperature is 300 DEG C, and hot rolled thickness is 6.0mm;
3) the coiled material direct cold rolling after hot rolling is to finished product thickness, cold rolling total reduction 20%, then carries out finished products, temperature 200 DEG C, prepares finished product.
The yield strength of obtained aluminium alloy strips is 183MPa, and surface roughness is Ra0.25 ��m.
Embodiment 2
A kind of anodic oxidation aluminium alloy strips, its composition is: Cu0.10wt%, Mg2.0wt%, Si0.05wt%, Fe0.08wt%, Mn0.03wt%, Cr0.08wt%, Ti0.04wt%, and surplus is Al.
Preparation method, comprises the following steps:
1) aluminium ingot melts through smelting furnace, after dispensing, carries out semi-continuous casting;
2) ingot casting enters heating furnace, metal temperature 580 DEG C, time 1h, hot rolling of then coming out of the stove behind sawing, milling face, and hot rolling finishing temperature is 250 DEG C, and hot rolled thickness is 10.0mm;
3) coiled material after hot rolling through 40% cold rolling, then carry out intermediate annealing, intermediate anneal temperature is 400 DEG C, and temperature retention time is 2h, is then cold rolled to finished product thickness, and cold rolling reduction ratio is 20%, eventually passes the finished products of 200 DEG C, prepares finished product.
The yield strength of obtained aluminium alloy strips is 181MPa, and surface roughness is Ra0.30 ��m.
Embodiment 3
A kind of moderate strength anodic oxidation aluminium alloy strips, its composition is: Cu0.07wt%, Mg2.5wt%, Si0.02wt%, Fe0.08wt%, Mn0.03wt%, Cr0.1wt%, Ti0.02wt%, and surplus is Al.
Preparation method, comprises the following steps:
1) aluminium ingot melts through smelting furnace, after dispensing, carries out semi-continuous casting;
2) ingot casting enters heating furnace, metal temperature 480 DEG C, time 30h, hot rolling of then coming out of the stove behind sawing, milling face, and hot rolling finishing temperature is 350 DEG C, and hot rolled thickness is 3.0mm;
3) the coiled material direct cold rolling after hot rolling is to finished product thickness, cold rolling total reduction 50%, then carries out finished products, temperature 150 DEG C, prepares finished product.
The yield strength of obtained aluminium alloy strips is 190MPa, and surface roughness is Ra0.24 ��m.
The anodic oxidation aluminium of present invention design is compared with tradition 5052, it improves in chemical composition and cold rolling processing technique, make same thickness product while having identical close elongation percentage (punching performance), there is the yield strength of superelevation, anode rear surface is fine and smooth simultaneously, and its surface brightness is splendid.
The foregoing is only presently preferred embodiments of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of the present invention.

Claims (4)

1. a moderate strength anodic oxidation aluminium alloy strips, it is characterised in that: its composition is: Cu0.05 ~ 0.10wt%, Mg2.0 ~ 3.0wt%, Si��0.05wt%, Fe��0.08wt%, Mn��0.05wt%, Cr��0.1wt%, Ti��0.05wt%, Fe/Si=1 ~ 3, surplus is Al.
2. moderate strength anodic oxidation aluminium alloy strips according to claim 1, it is characterised in that: yield strength >=180MPa.
3. the method preparing moderate strength anodic oxidation aluminium alloy strips as claimed in claim 1 or 2, it is characterised in that: comprise the following steps:
1) aluminium ingot melts through smelting furnace, after dispensing, carries out semi-continuous casting;
2) ingot casting enters heating furnace, metal temperature 480-580 DEG C, time 1-30h behind sawing, milling face, hot rolling of then coming out of the stove, and hot rolling finishing temperature is 250-350 DEG C, and hot rolled thickness is 3.0-10.0mm;
3) the coiled material direct cold rolling after hot rolling is to finished product thickness, cold rolling total reduction >=10%, then carries out finished products, temperature 150-300 DEG C, prepares finished product; Or cold rolling through 10-70% of the coiled material after hot rolling, then carry out intermediate annealing, intermediate anneal temperature is 300-500 DEG C, temperature retention time is 30s-4h, is then cold rolled to finished product thickness, and cold rolling reduction ratio is 10 ~ 80%, eventually pass the finished products of 150-300 DEG C, prepare finished product.
4. preparation method according to claim 3, it is characterised in that: the Roughness Surface on Control of the finished product obtained by step 3) is within Ra0.3 ��m.
CN201610081532.1A 2016-02-05 2016-02-05 A kind of moderate strength anodic oxidation aluminium alloy strips and preparation method thereof CN105624483B (en)

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106086532A (en) * 2016-06-20 2016-11-09 中铝瑞闽股份有限公司 A kind of capacitor case aluminium alloy strips and preparation method thereof
CN106350714A (en) * 2016-08-27 2017-01-25 河南明泰铝业股份有限公司 High-end anodic oxidation aluminum strip for 3C (computer, communication and consumer electronic) industry and production method of high-end anodic oxidation aluminum strip
CN106521373A (en) * 2016-12-22 2017-03-22 新疆众和股份有限公司 Surface control process for aluminum alloy used for anodizing
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
CN106591645A (en) * 2016-11-30 2017-04-26 中铝瑞闽股份有限公司 Aluminum alloy strip for food packaging special-shaped can and preparation method of aluminum alloy strip
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
CN106637002A (en) * 2016-12-22 2017-05-10 新疆众和股份有限公司 Surface control process of soft-state aluminum alloy for anode oxidation
CN106694548A (en) * 2016-12-22 2017-05-24 新疆众和股份有限公司 Hot rolling process for aluminum alloy for anodic oxidation
CN106694547A (en) * 2016-12-22 2017-05-24 新疆众和股份有限公司 Hot rolling process of hard aluminum alloy for anodic oxidation
CN106756666A (en) * 2016-12-22 2017-05-31 新疆众和股份有限公司 A kind of anodic oxidation granule surface contral technique of hard state aluminium alloy
CN106834979A (en) * 2016-12-22 2017-06-13 新疆众和股份有限公司 A kind of anodic oxidation hot rolling technology of soft state aluminium alloy
CN106987788A (en) * 2017-03-07 2017-07-28 新疆众和股份有限公司 It is a kind of that the hot-working method that 1090 minute surface woollens are provided is rolled for specular aluminium
CN107130146A (en) * 2017-06-07 2017-09-05 中铝瑞闽股份有限公司 A kind of capacitor case aluminium alloy strips and preparation method thereof
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
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
CN107794470A (en) * 2017-11-18 2018-03-13 中铝瑞闽股份有限公司 5 without heterochromatic defect after a kind of anodization be the cold rolling process of aluminium plate
CN107881372A (en) * 2017-11-10 2018-04-06 安徽华中天力铝业有限公司 A kind of 8150 alloy foils and its production technology
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
CN108277403A (en) * 2018-01-31 2018-07-13 中铝瑞闽股份有限公司 A kind of mirror-like anodized aluminum alloy calendering plate and preparation method thereof

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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

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JPH05271836A (en) * 1992-03-30 1993-10-19 Furukawa Alum Co Ltd Aluminum alloy material excellent in strength and ductility and its production
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
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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106086532A (en) * 2016-06-20 2016-11-09 中铝瑞闽股份有限公司 A kind of capacitor case aluminium alloy strips and preparation method thereof
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
CN106350714A (en) * 2016-08-27 2017-01-25 河南明泰铝业股份有限公司 High-end anodic oxidation aluminum strip for 3C (computer, communication and consumer electronic) industry and production method of high-end anodic oxidation aluminum strip
CN106591645A (en) * 2016-11-30 2017-04-26 中铝瑞闽股份有限公司 Aluminum alloy strip for food packaging special-shaped can and preparation method of aluminum alloy strip
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
CN106756666A (en) * 2016-12-22 2017-05-31 新疆众和股份有限公司 A kind of anodic oxidation granule surface contral technique of hard state aluminium alloy
CN106694547A (en) * 2016-12-22 2017-05-24 新疆众和股份有限公司 Hot rolling process of hard aluminum alloy for anodic oxidation
CN106694548A (en) * 2016-12-22 2017-05-24 新疆众和股份有限公司 Hot rolling process for aluminum alloy for anodic oxidation
CN106834979A (en) * 2016-12-22 2017-06-13 新疆众和股份有限公司 A kind of anodic oxidation hot rolling technology of soft state aluminium alloy
CN106756666B (en) * 2016-12-22 2018-10-30 新疆众和股份有限公司 A kind of granule surface contral technique of the hard state aluminium alloy of anodic oxidation
CN106637002A (en) * 2016-12-22 2017-05-10 新疆众和股份有限公司 Surface control process of soft-state aluminum alloy for anode oxidation
CN106521373A (en) * 2016-12-22 2017-03-22 新疆众和股份有限公司 Surface control process for aluminum alloy used for anodizing
CN106834979B (en) * 2016-12-22 2019-03-26 新疆众和股份有限公司 A kind of hot rolling technology of the soft state aluminium alloy of anodic oxidation
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
CN106987788B (en) * 2017-03-07 2019-03-26 新疆众和股份有限公司 It is a kind of to provide the hot-working method of 1090 mirror surface woollens for specular aluminium rolling
CN106987788A (en) * 2017-03-07 2017-07-28 新疆众和股份有限公司 It is a kind of that the hot-working method that 1090 minute surface woollens are provided is rolled for specular aluminium
CN107130146A (en) * 2017-06-07 2017-09-05 中铝瑞闽股份有限公司 A kind of capacitor case aluminium alloy strips and preparation method thereof
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
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
CN107881372A (en) * 2017-11-10 2018-04-06 安徽华中天力铝业有限公司 A kind of 8150 alloy foils and its production technology
CN107794470A (en) * 2017-11-18 2018-03-13 中铝瑞闽股份有限公司 5 without heterochromatic defect after a kind of anodization be the cold rolling process of aluminium plate
CN107794470B (en) * 2017-11-18 2019-04-05 中铝瑞闽股份有限公司 After a kind of anodization without heterochromatic defect 5 be aluminium plate cold rolling process
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
CN108277403A (en) * 2018-01-31 2018-07-13 中铝瑞闽股份有限公司 A kind of mirror-like anodized aluminum alloy calendering plate and preparation method thereof
CN108277403B (en) * 2018-01-31 2019-09-17 中铝瑞闽股份有限公司 A kind of mirror-like anodized aluminum alloy calendering plate and preparation method thereof

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