CN104451284B - The H48 aluminium alloy strips of pop can cover 5182 and its production method - Google Patents
The H48 aluminium alloy strips of pop can cover 5182 and its production method Download PDFInfo
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- CN104451284B CN104451284B CN201410706293.5A CN201410706293A CN104451284B CN 104451284 B CN104451284 B CN 104451284B CN 201410706293 A CN201410706293 A CN 201410706293A CN 104451284 B CN104451284 B CN 104451284B
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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
- 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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Abstract
The invention discloses a kind of H48 aluminium alloy strips of pop can cover 5182, in units of percentage by weight, chemical composition contains：Si 0.15%, Fe 0.30%, Cu 0.10%, Mn 0.30~0.40%, Mg 4.30~4.80%, Cr 0.08%, Zn 0.25%, Ti 0.01~0.03%, surplus is Al.The production method of the aluminium alloy strips, its processing step includes：1. ingot casting；2. ingot mill surface；3. ingot casting is heated；4. slab hot-rolling；5. cold rolling cogging；6. finished product is cold rolling, stretch-bending straightening, cleaning, coating, cutting, packaging, produces；In ingot casting cold-rolled process, stretch-bending straightening cleaning twice and intermediate annealing process are carried out respectively.The present invention is by the process study to pop can cover 5182-H48 aluminium alloy strips, with reference to the characteristics of home equipment, has successfully produced pop can cover of the thickness for 0.22 millimeter of 5182 alloy, has filled up the blank that home equipment produces such product.
Description
Technical field：
The present invention relates to a kind of pop can cover 5182-H48 aluminium alloy strips, more particularly to a kind of pop can cover
The production method of 5182-H48 aluminium alloy strips.
Background technology：
Aluminum easy open can has the advantages that body is light, anti-corrosion, heat conductivity is good, tasteless, nontoxic, printing effect is good, decoration is attractive in appearance,
The visual experience of elegance is brought to consumer.Aluminum easy open can compares other covers, not only superior in performance, and making also can machinery
Change, on a large scale, and cost is low, pollution-free, goes back recoverable.Therefore, global pop can consumption 80~nineties of 20th century
Sharply increase, there is absolute predominance status in world beverage packaging market.Market, consumption figure 2,400,000 are wherein wanted based on North America
Ton/year ,/year of pre-capita consumption 480；Japanese pre-capita consumption is 220/year；European pre-capita consumption is 220/year；China is per capita
Consumption is only 20/year.Gap is exactly opportunity, with the rapid raising of internal people's living standard, and pop can consumption will be in
Existing explosive growth, it is contemplated that be always maintained at the factors such as 15% average growth rate per annum in recent years, the five-year consumption figure is up to 1,000,000
Ton, with good market prospects.
5182-H48 aluminium alloy strips are as pop can cover material, with quality requirement in detail below：1. thickness is permitted
Perhaps deviation：±0.002㎜ ；2. width tolerance：-0+0.4 ㎜ ；3. flatness requirements：Band expansion is placed in platform
On, in the range of whole width or any 2m length, the maximal clearance value between web planarity and platform is not more than 2 ㎜, and
Wave in any 1m width or length range is no more than 2；4. mechanical property requirements：370~420MPa of tensile strength, bends
Take 330~360MPa of intensity, elongation percentage >=5%；5. coating performance：Must by boiling test, cooking test, acid resistance test,
Adhesive force is tested, 11 ± 1 grams/m, outer 5 ± 1 grams/m in coating thickness, and the milli gram/m of waxing amount 70 ± 20/
Face；6. appearance requirement：Strip surface answers uniformity, cleaning, is not allow for burn into through stomata, viscous wound, metal and non-
Metal press-in, pine tree shape decorative pattern, the quality that being not allow for serious cut, greasy dirt, oil mark, roll marks etc. influences client to use lack
Fall into；Strip edge should be trimmed, and burr is not more than 0.2 millimeter；1.5 millimeters/2000 millimeters of band linearity, staggered floor is not more than 1 ㎜,
Turriform is not more than 2.5 ㎜.
As can be seen here, for summary, cover material 5182-H48 aluminium alloy strips should have " high-performance, dimensional accuracy height, plate
Shape glacing flatness is small, any surface finish " etc. require, among these, the high-performance for how obtaining band is the key in production technology.
The content of the invention：
The technical problems to be solved by the invention are：A kind of high performance pop can cover 5182-H48 aluminum alloy strips are provided
Material and its production method.
The present invention is the technical solution adopted for solving the technical problem；
A kind of pop can cover 5182-H48 aluminium alloy strips, in units of percentage by weight, chemical composition contains：Si
0.15%, Fe 0.30%, Cu 0.10%, Mn 0.30~0.40%, Mg 4.30~4.80%, Cr 0.08%, Zn 0.25%, Ti
0.01~0.03%, surplus is Al.
The production method of pop can cover 5182-H48 aluminium alloy strips recited above, its concrete technology step is as follows：
1. ingot casting：By the chemical composition dispensing of following percentage by weight：Si 0.15%, Fe 0.30%, Cu 0.10%, Mn
0.1~0.15%, Mg 4.30~4.80%, Cr 0.08%, Zn 0.25%, Ti 0.01~0.03%, surplus is Al；
2. ingot mill surface：By aluminium alloy cast ingot milling face, one side milling face amount >=15mm, ingot casting both sides thickness difference≤3mm,
The requirement of milling surface roughness is 0.05~0.15mm；
3. ingot casting is heated：Aluminium alloy cast ingot behind milling face is heated to 540~560 DEG C, insulation is come out of the stove after 8~10 hours,
Tapping temperature is maintained at 500~520 DEG C；
4. slab hot-rolling：By the aluminium alloy cast ingot after coming out of the stove by the rolling of 15~25 times, it is 4~6mm's to be rolled to thickness
In blank material, course of hot rolling, the temperature of homogenization heating is remained between 465~485 DEG C, and hot rolling finishing temperature is not less than
340℃ ；
5. cold rolling cogging：It is rolled into by 4~6mm in 0.30~0.35mm, the operation of rolling and carries out stretch-bending straightening twice respectively
Cleaning and intermediate annealing, intermediate anneal temperature are maintained at 390 DEG C；
6. finished product is cold rolling：By 0.30~0.35mm again through the rolling of 2~4 times, 0.22mm is rolled into, it is stretch-bending straightening, clear
Wash, coating, cutting, packaging, produce.
In ingot casting cold-rolled process, when being rolled within the scope of 3.0~3.50mm and 1.0~1.50mm two, enter respectively
Row stretch-bending straightening cleaning twice and intermediate annealing process.
In the present invention, the influence of the determination and chemical composition of each chemical composition to band mechanical property：
①Mg：Mainly with solid solution condition and β (Mg2A13Or Mg5A18) two kinds of forms presence of phase, wherein β (Mg2A13) be mutually
Complicated face-centered cubic metastable phase, changes as Mg5A18The thermodynamic tendency of stable phase, Mg reaches in 450 degree of eutectic temperature
Limit solid solubility 17.4%, now, Mg, Al intermetallic compound are that β phases and αsolidsolution constitute eutectic structure, as temperature drops
Low, αsolidsolution progressively separates out β phase particles, and the decomposition rate of α supersaturated solid solutions is extremely slow, and usual 5 line aluminium alloy is partly cast repeatedly
Larger Mg super saturated solid solution degree will be retained in ingot, this is thermodynamically and unstable, through reheating or room temperature storage can
Spontaneous precipitation β phases, thus the ageing strengthening effect of alloy is low.The intensity of 5182 alloys is improved with the increase of Mg contents, modeling
Property then decrease, therefore Mg contents control below 5.5%, optimum range is 4.30~4.80%.
②Mn：Part is solid-solution in matrix, and remaining is with MnAl6The form of phase is present in tissue.Mn can improve alloy
Recrystallization temperature, prevents grain coarsening, and alloy strength is slightly had raising, and especially yield strength effect is become apparent.Therefore Mg
Content optimum range is controlled between 0.30~0.40%.
③Fe：A small amount of Fe is to form the needle-like FeAl insoluble in α matrixes3Phase, weakens matrix, significantly reduces the machinery of alloy
Performance；Potential difference is larger between FeAl3 and α, therefore reduction corrosion stability.Meanwhile, Fe forms insoluble gold with the Mn and Cr in alloy
Compound between category, makes occur hard crisp multi-element compounds in cast sturcture, easily occurs raw edges when cold rolling.Therefore, iron content one
As should control below 0.35%, it is contemplated that the high-performance required by 5182-H48 aluminium alloy strips, iron content control exist
0.30%。
④Si：In the alloy with the Mg of the thicker bone shape of Mg formation2Si phases, its amount increases with the increase of Si amounts, and
Solubility in α is but reduced with the increase of Mg amounts.Mg under high temperature2Solubility very littles of the Si in α, Mg during heat treatment2Si phases
It can not dissolve and still keep original form.At this moment part Mg is by Mg2Si constraints can not play invigoration effect, and Mg2Si it is thick and
Property is crisp, significantly reduces the mechanical performance of alloy.Si can make alloy grain thick, so Si not only less, drop on the contrary by invigoration effect
The low plasticity of alloy.Therefore, draw ring should be limited with the content of Si in 5182 alloy strip steel rolled stocks, be 0.15%.
⑤Cr：It is common addition element in Al-Mg systems alloy.Solubility of the Cr in aluminium be about at 660 DEG C O.8%,
Do not dissolve, mainly exist with compound form substantially during room temperature, hinder the nucleation process of recrystallization, there is certain reinforcing to alloy
Effect.In addition, Cr can also improve alloy ductility and reduction stress corrosion opening cracking maleate sensitivity.But Cr content is usually no more than
0.35%, otherwise, the intermetallics that Cr can be thick with the formation such as other alloying elements or impurity such as Mn, Fe, Ti, reduction
The mechanical property such as forming property and fracture toughness.Cr diffusion velocity is low, and tiny dispersed phase is formed in pressing process,
Nucleus formation can be suppressed and crystal grain is grown up, therefore available Cr controls the microscopic structure of alloy.Cr and Mn is added simultaneously, its effect ratio
Single addition it is big, therefore Cr be 0.08%.
In the present invention, influence of the production technology to 5182-H48 aluminium alloy strips band performances：
1. the influence of hot rolling homogenization heating cycle, open rolling and finishing temperature to band performance：
Course of hot rolling is along with plastic deformation and the dual characteristicses of dynamic recrystallization.Start rolling temperature and finishing temperature are to texture
Influence it is very big, hot-rolled temperature is higher, it is cold rolling after recrystallization texture relatively remain by force more, be conducive to the strong of cubic texture
Change；When hot-rolled temperature is relatively low, stronger deformation texture will be presented in hot rolled plate, subsequently cold rolling to be difficult to proceed.So rationally
Homogenization heating cycle and hot rolling technology system can ensure that whole course of hot rolling is constantly in dynamic recrystallization, it is ensured that it is follow-up
The performance of final finished.The purpose that homogenization heating is carried out to ingot casting is that the atom for making inside ingot is sufficiently vibrated, and is disappeared
Except casting stress, microsegregation and regional segregation are eliminated, good plasticity is provided for hot rolling.The temperature of homogenization heating is 465
Between~485 DEG C, optimum temperature is 475 DEG C.
Hot rolling finishing temperature influences the residual quantity of cold rolling rear recrystallization texture, and finishing temperature is higher, and cold rolling rear recrystallization is knitted
The residual quantity of structure is more.In view of the restriction of hot rolling speed, road sub-quantity etc., the good control on hot-rolled band surface, through excessive
The production practices of amount, hot rolling finishing temperature is defined as being not less than 340 DEG C.
2. intermediate anneal temperature：
The mechanical property for accurately controlling band for rear process is laid the groundwork, while further generating recrystallization texture, at this moment
The total recrystallization texture quantity of band is enough and before this and the rolling texture that is subsequently formed reaches certain relation, influence band is final
Performance.So, intermediate anneal temperature is determined at 390 DEG C.
The present invention is by the process study to pop can cover 5182-H48 aluminium alloy strips, with reference to patentee
The characteristics of being home equipment entirely of use, has successfully produced pop can cover of the thickness for 0.22 millimeter of 5182 alloy, has filled up
Home equipment produces the blank of such product.
Embodiment：
Embodiment 1：A kind of pop can cover 5182-H48 aluminium alloy strips, in units of percentage by weight, chemical composition
Contain：Si 0.15%, Fe 0.30%, Cu 0.10%, Mn 0.30%, Mg 4.30%, Cr 0.08%, Zn 0.25%, Ti
0.01%, surplus is Al.
The production method of pop can cover 5182-H48 aluminium alloy strips recited above, its concrete technology step is as follows：
1. ingot casting：By the chemical composition dispensing of following percentage by weight：Si 0.15%, Fe 0.30%, Cu 0.10%, Mn
0.30~0.40%, Mg 4.30~4.80%, Cr 0.08%, Zn 0.25%, Ti 0.01~0.03%, surplus is Al；
2. ingot mill surface：By aluminium alloy cast ingot milling face, one side milling face amount >=15mm, ingot casting both sides thickness difference≤3mm,
The requirement of milling surface roughness is 0.05~0.15mm；
3. ingot casting is heated：Aluminium alloy cast ingot behind milling face is heated to 540~560 DEG C, insulation is come out of the stove after 8~10 hours,
Tapping temperature is maintained at 500~520 DEG C；
4. slab hot-rolling：By the aluminium alloy cast ingot after coming out of the stove by the rolling of 15~25 times, it is 4~6mm's to be rolled to thickness
In blank material, course of hot rolling, the temperature of homogenization heating is remained between 465~485 DEG C, and hot rolling finishing temperature is not less than
340℃ ；
5. cold rolling cogging：It is rolled into by 4~6mm in 0.30~0.35mm, the operation of rolling and carries out stretch-bending straightening twice respectively
Cleaning and intermediate annealing, intermediate anneal temperature are maintained at 390 DEG C；
6. finished product is cold rolling：By 0.30~0.35mm again through the rolling of 2~4 times, 0.22mm is rolled into, it is stretch-bending straightening, clear
Wash, coating, cutting, packaging, produce.
In ingot casting cold-rolled process, when being rolled within the scope of 3.0~3.50mm and 1.0~1.50mm two, enter respectively
Row stretch-bending straightening cleaning twice and intermediate annealing process.
Embodiment 2：The production method of the present embodiment is identical with embodiment 1, and something in common is not repeated, and difference exists
In：A kind of pop can cover 5182-H48 aluminium alloy strips, in units of percentage by weight, chemical composition contains：Si 0.15%,
Fe 0.30%, Cu 0.10%, Mn 0.40%, Mg 4.80%, Cr 0.08%, Zn 0.25%, Ti 0.03%, surplus is Al.
Embodiment 3：The production method of the present embodiment is identical with embodiment 1, and something in common is not repeated, and difference exists
In：A kind of pop can cover 5182-H48 aluminium alloy strips, in units of percentage by weight, chemical composition contains：Si 0.15%,
Fe 0.30%, Cu 0.10%, Mn0.35%, Mg 4.60%, Cr 0.08%, Zn 0.25%, Ti 0.02%, surplus is Al.
Embodiment 4：The production method of the present embodiment is identical with embodiment 1, and something in common is not repeated, and difference exists
In：A kind of pop can cover 5182-H48 aluminium alloy strips, in units of percentage by weight, chemical composition contains：Si 0.15%,
Fe 0.30%, Cu 0.10%, Mn 0.32%, Mg 4.40%, Cr 0.08%, Zn 0.25%, Ti 0.02%, surplus is Al.
Claims (2)
1. a kind of production method of pop can cover 5182-H48 aluminium alloy strips, its concrete technology step is as follows：
1. ingot casting：By the chemical composition dispensing of following percentage by weight：Si 0.15%, Fe 0.30%, Cu 0.10%, Mn 0.30
~0.40%, Mg 4.30~4.80%, Cr 0.08%, Zn 0.25%, Ti 0.01~0.03%, surplus is Al；
2. ingot mill surface：By aluminium alloy cast ingot milling face, one side milling face amount >=15mm, ingot casting both sides thickness difference≤3mm, milling face
Roughness requirements are 0.05~0.15mm；
3. ingot casting is heated：Aluminium alloy cast ingot behind milling face is heated to 540~560 DEG C, insulation is come out of the stove after 8~10 hours, is come out of the stove
Temperature is maintained at 500~520 DEG C；
4. slab hot-rolling：Rolling by the aluminium alloy cast ingot after coming out of the stove Jing Guo 15~25 passages, is rolled to the hair that thickness is 4~6mm
In blank, course of hot rolling, the temperature of homogenization heating is remained between 465~485 DEG C, and hot rolling finishing temperature is not less than
340℃ ；
5. cold rolling cogging：It is rolled into by 4~6mm in 0.30~0.35mm, the operation of rolling and carries out stretch-bending straightening cleaning twice respectively
And intermediate annealing, intermediate anneal temperature is maintained at 390 DEG C；
6. finished product is cold rolling：By 0.30~0.35mm again through the rolling of 2~4 times, 0.22mm, stretch-bending straightening, cleaning, painting are rolled into
Layer, cutting, packaging, are produced.
2. the production method of pop can cover 5182-H48 aluminium alloy strips according to claim 1, it is characterised in that：
In ingot casting cold-rolled process, when being rolled within the scope of 3.0~3.50mm and 1.0~1.50mm two, stretch bending twice is carried out respectively
Aligning cleaning and intermediate annealing process.
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568086A (en) * | 2015-12-31 | 2016-05-11 | 中铝西南铝冷连轧板带有限公司 | 5182 alloy strip for thin tank cover and production method of 5182 alloy strip |
| CN105506415A (en) * | 2015-12-31 | 2016-04-20 | 中铝西南铝冷连轧板带有限公司 | 5182 aluminum alloy strip and production method thereof |
| CN105803275A (en) * | 2016-03-17 | 2016-07-27 | 中铝科学技术研究院有限公司 | Aluminum alloy sheet material for thin ring-pull can cover and preparation method |
| CN105755333B (en) * | 2016-03-17 | 2017-09-05 | 中铝科学技术研究院有限公司 | A kind of preparation method of the slim cover aluminum alloy plate materials of pop can |
| CN106834825B (en) * | 2016-11-16 | 2018-08-31 | 广西南南铝加工有限公司 | 5182 aluminium alloys |
| CN108385044A (en) * | 2018-03-06 | 2018-08-10 | 东北大学 | A kind of preparation method of 5182 aluminum alloy plate materials of body of a motor car |
| JP2018199866A (en) * | 2018-08-24 | 2018-12-20 | 株式会社神戸製鋼所 | Aluminum alloy sheet for resin coated can body |
| CN112828034A (en) * | 2020-12-30 | 2021-05-25 | 西南铝业（集团）有限责任公司 | Production method of aluminum-magnesium-silicon alloy strip |
| CN114875254A (en) * | 2022-03-26 | 2022-08-09 | 河南中孚高精铝材有限公司 | Production method of coiled material for aluminum alloy R0PP bottle cap |
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| US3490955A (en) * | 1967-01-23 | 1970-01-20 | Olin Mathieson | Aluminum base alloys and process for obtaining same |
| JP2004183045A (en) * | 2002-12-03 | 2004-07-02 | Furukawa Sky Kk | Aluminum alloy sheet for coated tab, and its production method |
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