CN100360249C - Short process production technology of ultrathin aluminium foil - Google Patents
Short process production technology of ultrathin aluminium foil Download PDFInfo
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- CN100360249C CN100360249C CNB2006100180438A CN200610018043A CN100360249C CN 100360249 C CN100360249 C CN 100360249C CN B2006100180438 A CNB2006100180438 A CN B2006100180438A CN 200610018043 A CN200610018043 A CN 200610018043A CN 100360249 C CN100360249 C CN 100360249C
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- aluminum foil
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 230000008569 process Effects 0.000 title claims abstract description 13
- 239000005030 aluminium foil Substances 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 44
- 238000005096 rolling process Methods 0.000 claims abstract description 28
- 239000011888 foil Substances 0.000 claims abstract description 26
- 238000005266 casting Methods 0.000 claims abstract description 16
- 238000000137 annealing Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000003723 Smelting Methods 0.000 claims abstract description 5
- 230000002427 irreversible effect Effects 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000005097 cold rolling Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007872 degassing Methods 0.000 claims description 4
- 239000006025 fining agent Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 abstract description 5
- 241001417490 Sillaginidae Species 0.000 abstract 1
- 238000005338 heat storage Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 10
- 229910000838 Al alloy Inorganic materials 0.000 description 6
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- -1 assorted Substances 0.000 description 1
- 239000012611 container material Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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Abstract
The present invention discloses a short process manufacturing technology of an ultrathin aluminum foil, which comprises the following technology steps: firstly, smelting, a large capacity heat storage type smelting furnace smelts primary aluminum into aluminum liquid, and the aluminum liquid enters a casting rolling mill via a flow channel; secondly, rough rolling, the aluminum liquid smelted in the first step is inducted to the casting rolling mill and rolled into blank; thirdly, middle rolling, rolling the slab blank again by using a cold roller set, and annealing the slab blank for two times so as to cause the sizes of grains to be even, and the grains become into 0.3mm aluminum foil rough materials after cold roll; fourthly, foil rolling, rolling the 0.3mm aluminum foil rough materials into aluminum foil finished products by using a four-roller irreversible foil roller set. The manufacturing technology of an ultrathin aluminum foil in the present invention has the advantages of short process, low operation cost and small production investment scale; the quality of the produced ultrathin aluminum foil reaches international advanced level; compared with the manufacturing technology using a hot rolling method, in blank production, the present invention lowers 2/3 of investment cost and more than a half of running cost.
Description
Technical field
The present invention relates to the production technology of aluminium foil, especially relate to the productive technology of short flow of ultra-thin aluminum foil.
Background technology
The finished product aluminium foil has purposes widely, requires constant product quality, and material structure is even, and the sale price of market is also very considerable.The traditional processing technology of aluminium foil is to utilize " hot rolling method " at present: at first casting the bulk billet after the primary aluminum melting, again billet is evenly heated the back hot rolling cogging and make blank; And then pass through roughing, finish rolling to finished product.Whole process flow is long, need large-scale smelting-casting equipment machine row, scale of investment big (needs more than 10 hundred million to billions of RMB do not wait), need very big production site, billet need mill face earlier, again after more than the post bake to 500 ℃, just can enter rolling process, because will be through milling operation in early stage such as face, so lumber recovery only has about 80%, and is lower.Also have a kind of " rolling casting " of producing aluminium foil, the aluminium liquid that is about to melting is injected into and rolls in the casting machine, and directly continuous casting and rolling becomes blank, enters rolling process then.This mode technological process is short, do not need very big production site, only need a casting unit, blank does not need the face that mills and post bake can enter rolling process, lumber recovery can reach more than 85%, but the end product quality of producing is poor, there is anisotropy in the inherent tissue of material, can not be used as the processing of aluminum container material.
Summary of the invention
The object of the present invention is to provide the productive technology of short flow of the high ultra-thin aluminum foil of a kind of end product quality.
For achieving the above object, the present invention can take following technical proposals:
The productive technology of short flow of ultra-thin aluminum foil of the present invention is characterized in that: it carries out according to following processing step:
The first step, melting:
With big capacity heat accumulating type smelting furnace primary aluminum is changed into aluminium liquid, enter casting and rolling machine by chute, in aluminium liquid flow process, the online interpolation of fining agent Al-Ti-B forms continuously thinning effect uniformly; Graphite rotator forms and removes effect continuously uniformly in 730-735 ℃ of online degasification down, slagging-off;
Second step, roughing:
Aluminium liquid after the first step melting is introduced the casting and rolling machine casting become blank; In this process, the cold in-water temperature of roll body inner chamber is controlled at 20-23 ℃, leaving water temperature is controlled at 28-32 ℃, the aluminum melt static pressure is controlled at 0.004-0.005Mpa between roll gap, { 100} face rate＞95%, crystallite dimension≤5 μ m roll out the slab of 6.5-7.5mm to guarantee the crystallization direction of material;
The 3rd step, intermediate rolling:
Above-mentioned slab is carried out once more rolling with cold rolling unit, during to thickness 4.5mm, it is sent in the annealing furnace, be heated to 360 ℃, insulation after 2 hours, continued to be heated to 580 ℃, insulation 18 hours, carry out homogenizing annealing, make even grain size, the directionality unanimity; Continue in cold-rolling mill, to be cold-rolled to 0.60mm then, once more it sent in the annealing furnace, be heated to 460 ℃, the insulation 5 hours after, be cooled to 400 ℃, the insulation 7 hours, carry out intermediate annealing; Continuing to be rolled into thickness then is that 0.3mm is as aluminium foil stock;
The 4th step, paper tinsel roll:
With the irreversible foil mill group of four rollers the aluminium foil stock of above-mentioned 0.3mm is rolled into aluminum foil finished product.
The invention has the advantages that in the melting operation, aspect Melt Modification, adopted online interpolation fining agent and online degasification, slagging-off, guarantee no gas enclosure in the melt, assorted, slag situation; In the roughing operation, can produce coil diameter is the slab volume of 1900mm, and maximum volume-weight can reach 9000kg, constant product quality, production efficiency height; In the intermediate rolling operation, adopt the rolling continuous production processes, and a homogenizing annealing and an intermediate annealing have been increased, the uniformity and the directionality of material grains size have been guaranteed, thereby satisfied the demand of aluminum foil rolling, can produce aluminium alloy plate, the strip product of multiple model, thickness and precision can reach 0.05 ± 0.002mm, 0.10 ± 0.005mm, 0.5 ± 0.015mm, 2.0 ± 0.02mm; Wide precision can reach ± 1% bandwidth; Plate shape precision (glacing flatness)≤251; Product precision, performance etc. can reach the requirement of GB/T3880-1997 " aluminium and aluminum alloy rolled sheet material " and U.S. ASTM.B209 " aluminium and aluminum alloy plate materials " and Japanese JISH400 standards such as " aluminium and aluminium alloy plate and bars " fully; After the 4th step, paper tinsel rolled, the finished product aluminum foil thickness that rolls out can arrive 0.006 ± 0.0003mm, 0.010 ± 0.005mm, 0.1 ± 0.003mm, 0.2 ± 0.001mm; Wide precision reaches ± 0.1% bandwidth; Plate shape precision≤151; Product precision, pinhole number, adhesion, mechanical property etc. are better than the requirement of GB/T3198-2003 " aluminium and alloy foil " and relevant criterion such as the U.S. and Japan; Especially the ultra-thin aluminum foil of Sheng Chaning, its thickness and precision can reach 0.006 ± 0.0003mm, 0.005 ± 0.0004mm, 0.004 ± 0.0002mm, and thickness and precision have exceeded outside national standard and beautiful, day relevant criterion.
Because the technological process of production of ultra-thin aluminum foil of the present invention is short, operating cost is low, production scale of investment little (nearly hundred million yuan to several hundred million yuans approximately), do not need very big production site (only quite hot rolling method production site about 1/3rd), and the 0.006mm that produces, 0.005mm, ultra-thin aluminum foil quality that 0.004mm is thick can reach international most advanced level, compare with common use import milling train, hot rolling production process, producing reduction cost of investment 2/3rds on the blank, operating cost reduces by more than 50.
The specific embodiment
The productive technology of short flow of ultra-thin aluminum foil of the present invention, it carries out according to following processing step:
The first step, melting:
With big capacity heat accumulating type smelting furnace primary aluminum is changed into aluminium liquid, enter casting and rolling machine by chute, in aluminium liquid flow process, the online interpolation of fining agent Al-Ti-B forms continuously thinning effect uniformly; Graphite rotator forms and removes effect continuously uniformly in 730-735 ℃ of online degasification down, slagging-off;
Second step, roughing:
Aluminium liquid after the first step melting is introduced the casting and rolling machine casting become blank; In this process, the cold in-water temperature of roll body inner chamber is controlled at 20-23 ℃, leaving water temperature is controlled at 28-32 ℃, the aluminum melt static pressure is controlled at 0.004-0.005Mpa between roll gap, { 100} face rate＞95%, crystallite dimension≤5 μ m roll out the slab of 6.5-7.5mm to guarantee the crystallization direction of material;
The 3rd step, intermediate rolling:
Above-mentioned slab is carried out once more rolling with cold rolling unit, during to thickness 4.5mm, it is sent in the annealing furnace, be heated to 360 ℃, insulation after 2 hours, continued to be heated to 580 ℃, insulation 18 hours, carry out homogenizing annealing, make even grain size, the directionality unanimity; Continue in cold-rolling mill, to be cold-rolled to 0.60mm then, once more it sent in the annealing furnace, be heated to 460 ℃, the insulation 5 hours after, be cooled to 400 ℃, the insulation 7 hours, carry out intermediate annealing; Continuing to be rolled into thickness then is that 0.3mm is as aluminium foil stock;
The 4th step, paper tinsel roll:
With the irreversible foil mill group of four rollers the aluminium foil stock of above-mentioned 0.3mm is rolled into 0.006mm, 0.005mm, ultra-thin aluminum foil finished product that 0.004mm is thick.
Claims (1)
1, a kind of productive technology of short flow of ultra-thin aluminum foil is characterized in that: it carries out according to following processing step:
The first step, melting:
With big capacity heat accumulating type smelting furnace primary aluminum is changed into aluminium liquid, enter casting and rolling machine by chute, in aluminium liquid flow process, the online interpolation of fining agent Al-Ti-B forms continuously thinning effect uniformly; Graphite rotator forms and removes effect continuously uniformly in 730-735 ℃ of online degasification down, slagging-off;
Second step, roughing:
Aluminium liquid after the first step melting is introduced the casting and rolling machine casting become blank; In this process, the cold in-water temperature of roll body inner chamber is controlled at 20-23 ℃, leaving water temperature is controlled at 28-32 ℃, the aluminum melt static pressure is controlled at 0.004-0.005Mpa between roll gap, { 100} face rate＞95%, crystallite dimension≤5 μ m roll out the slab of 6.5-7.5mm to guarantee the crystallization direction of material;
The 3rd step, intermediate rolling:
Above-mentioned slab is carried out once more rolling with cold rolling unit, during to thickness 4.5mm, it is sent in the annealing furnace, be heated to 360 ℃, insulation after 2 hours, continued to be heated to 580 ℃, insulation 18 hours, carry out homogenizing annealing, make even grain size, the directionality unanimity; Continue in cold-rolling mill, to be cold-rolled to 0.60mm then, once more it sent in the annealing furnace, be heated to 460 ℃, the insulation 5 hours after, be cooled to 400 ℃, the insulation 7 hours, carry out intermediate annealing; Continuing to be rolled into thickness then is that 0.3mm is as aluminium foil stock;
The 4th step, paper tinsel roll:
With the irreversible foil mill group of four rollers the aluminium foil stock of above-mentioned 0.3mm is rolled into aluminum foil finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100180438A CN100360249C (en) | 2006-06-30 | 2006-06-30 | Short process production technology of ultrathin aluminium foil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100180438A CN100360249C (en) | 2006-06-30 | 2006-06-30 | Short process production technology of ultrathin aluminium foil |
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| CN1868624A CN1868624A (en) | 2006-11-29 |
| CN100360249C true CN100360249C (en) | 2008-01-09 |
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| CNB2006100180438A Expired - Fee Related CN100360249C (en) | 2006-06-30 | 2006-06-30 | Short process production technology of ultrathin aluminium foil |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457941C (en) * | 2006-12-30 | 2009-02-04 | 云南铝业股份有限公司 | Production method of 5754 aluminum alloy blank using cast rolling machine |
| CN102247983A (en) * | 2011-06-29 | 2011-11-23 | 宁夏东方钽业股份有限公司 | Manufacturing method of metal foil strip and deformed wire rod |
| CN108160738A (en) * | 2017-12-22 | 2018-06-15 | 江苏鼎胜新能源材料股份有限公司 | A kind of preparation method of high-elongation medicinal aluminum foil |
| CN108995343A (en) * | 2018-07-11 | 2018-12-14 | 桐城市万方纸塑包装有限公司 | A kind of manufacturing method of the composite evacuated bag of eight banding of aluminium foil |
| CN110125182B (en) * | 2019-06-04 | 2020-11-10 | 安徽百盛源包装材料有限公司 | Production process of composite aluminum foil |
| CN110218912A (en) * | 2019-06-25 | 2019-09-10 | 江苏大亚铝业有限公司 | Lithium battery 12 μm of two-sided light high performance A1235 alloy aluminium foils and its preparation process |
| CN111589862A (en) * | 2020-04-13 | 2020-08-28 | 江苏中基复合材料有限公司 | Aluminum foil for cryogenic heat-insulating paper and preparation method thereof |
| CN111589864A (en) * | 2020-05-29 | 2020-08-28 | 王清伟 | Post-treatment finish machining process for manufacturing aluminum foil |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0693397A (en) * | 1992-09-14 | 1994-04-05 | Furukawa Alum Co Ltd | Production of aluminum foil excellent in strength and foil rollability |
| CN1141958A (en) * | 1994-06-17 | 1997-02-05 | 古河电气工业株式会社 | Method for production of aluminium alloy plate with good characteristics of shaping and thermo hardening |
| CN2364055Y (en) * | 1998-12-09 | 2000-02-16 | 北京同心旅科贸有限公司 | Graphite rotor shaft for purifying device |
| CN1254624A (en) * | 1998-11-20 | 2000-05-31 | 西北铝加工厂 | Method and technique for producing aluminium foils by direct casting and rolling of electrolytic aluminium liquid |
| CN1278306A (en) * | 1997-10-31 | 2000-12-27 | 阿尔肯国际有限公司 | Process for prodcing base foils of aluminium alloys |
| JP2002173748A (en) * | 2000-12-04 | 2002-06-21 | Mitsubishi Alum Co Ltd | Method for producing high purity aluminum foil |
| CN1491288A (en) * | 2001-02-13 | 2004-04-21 | Production of aluminum alloy foils having high strength and good rollability | |
| CN1661122A (en) * | 2004-02-25 | 2005-08-31 | 三菱铝株式会社 | Aluminous materials having excellent ductility and mfg. method for same |
-
2006
- 2006-06-30 CN CNB2006100180438A patent/CN100360249C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0693397A (en) * | 1992-09-14 | 1994-04-05 | Furukawa Alum Co Ltd | Production of aluminum foil excellent in strength and foil rollability |
| CN1141958A (en) * | 1994-06-17 | 1997-02-05 | 古河电气工业株式会社 | Method for production of aluminium alloy plate with good characteristics of shaping and thermo hardening |
| CN1278306A (en) * | 1997-10-31 | 2000-12-27 | 阿尔肯国际有限公司 | Process for prodcing base foils of aluminium alloys |
| CN1254624A (en) * | 1998-11-20 | 2000-05-31 | 西北铝加工厂 | Method and technique for producing aluminium foils by direct casting and rolling of electrolytic aluminium liquid |
| CN2364055Y (en) * | 1998-12-09 | 2000-02-16 | 北京同心旅科贸有限公司 | Graphite rotor shaft for purifying device |
| JP2002173748A (en) * | 2000-12-04 | 2002-06-21 | Mitsubishi Alum Co Ltd | Method for producing high purity aluminum foil |
| CN1491288A (en) * | 2001-02-13 | 2004-04-21 | Production of aluminum alloy foils having high strength and good rollability | |
| CN1661122A (en) * | 2004-02-25 | 2005-08-31 | 三菱铝株式会社 | Aluminous materials having excellent ductility and mfg. method for same |
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| CN1868624A (en) | 2006-11-29 |
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Effective date of registration: 20110817 Address after: 450051 No. 10, Qinling Mountains Road, Zhengzhou, Henan Co-patentee after: Zhengzhou Sheng Sheng aluminium foil Co., Ltd. Patentee after: Zhengzhou Aulminium Industry Co., Ltd. Address before: 450051 No. 10, Qinling Mountains Road, Zhengzhou, Henan Patentee before: Zhengzhou Aulminium Industry Co., Ltd. |
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Address after: 450051 No. 10, Qinling Mountains Road, Zhengzhou, Henan Co-patentee after: Zhengzhou Shenli aluminium foil Co., Ltd. Patentee after: Zhengzhou Aulminium Industry Co., Ltd. Address before: 450051 No. 10, Qinling Mountains Road, Zhengzhou, Henan Co-patentee before: Zhengzhou Sheng Sheng aluminium foil Co., Ltd. Patentee before: Zhengzhou Aulminium Industry Co., Ltd. |
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