CN1837399A - Thermal processing method in production process of super-thin aluminium foil by cast-rolling stock - Google Patents
Thermal processing method in production process of super-thin aluminium foil by cast-rolling stock Download PDFInfo
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- CN1837399A CN1837399A CN 200610010825 CN200610010825A CN1837399A CN 1837399 A CN1837399 A CN 1837399A CN 200610010825 CN200610010825 CN 200610010825 CN 200610010825 A CN200610010825 A CN 200610010825A CN 1837399 A CN1837399 A CN 1837399A
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Abstract
This invention relates to a heat treatment process in producing ultrathin aluminum foil with casting blank, which belongs to heat treatment technical sphere. The method includes procedures of homogenizing annealing, intermediate annealing and skin annealing. Homogenizing annealing is carried out after casting blank is rolled for one time,and the operating condition is following: heating-up quickly to 350-400 degrees, insulating for 2-4 hours, cooling the furnace temperature to 180-250 degrees, then tapping and air-cooled; intermediate annealing is carried out, after casting blank having passed homogenizing annealing is rolled,and the operating condition is following: heating-up quickly to 350-400 degrees, insulating for 2-4 hours, cooling the furnace temperature to 180-250 degrees, then tapping and air-cooled; skin annealing is carried out after casting blank having passed intermediate annealing is rolled. The operating condition is following: heating-up quickly to 140-200 degrees, insulating for 10-15 hours, then tapping and air-cooled. The invention, with simple operation, can improve effectively configuration of aluminum foil black and improve quality of finished aluminum foil, and especially adapt to produce 0.005mm aluminum foil.
Description
Technical field:
The present invention relates to a kind ofly produce heat treating method in the process of super-thin aluminium foil, be specially adapted to produce the aluminium foil of 0.005mm thickness, belong to the heat treatment technics field with cast-rolling stock.
Background technology:
As everyone knows, in the aluminium foil processing industry, the difficulty of processing of ultra-thin aluminum foil is big.And adopt the difficulty of processing of cast-rolling stock production ultra-thin aluminum foil bigger, not only require the quality of cast-rolling stock inside that height is arranged, more need in the following process process, carry out rational heat treatment, to reach elimination work hardening blank, improve processing characteristics, guarantee the requirement of ultra-thin aluminum foil quality.
Studies show that in a large number, it is inhomogeneous that inconsistent, the grain-size of cast-rolling stock tissue morphology and compound distribute, be to cause the aluminum foil finished product rate on the low side, pin hole is on the high side, and size is bigger than normal and be difficult to production than the one of the main reasons that approaches aluminium foil (mainly being 0.005mm thickness aluminium foil).And existing homogenizing annealing or evenly reach two kinds of heat treating methods of process annealing still can not to solve the aluminum foil finished product rate on the low side, pin hole is on the high side wait not enough.
By literature search, do not find the open report identical with content of the present invention.
Goal of the invention:
The objective of the invention is to overcome the deficiency of prior art, and a kind of aluminium foil blank tissue morphology that can effectively improve is provided, improve the heat treatment technics that cast-rolling stock is produced process of super-thin aluminium foil that is used for of aluminum foil finished product quality.
Heat treatment technics of the present invention comprises homogenizing annealing, process annealing and three kinds of modes of flash annealing, and is specific as follows:
1, homogenizing annealing
Adopt cold-rolling equipment to carry out once rolling to the cast-rolling stock of 5.5-6.5mm, sotck thinkness after rolling is 2.0-3.5mm, then cast-rolling stock is rolled into annealing furnace, is rapidly heated to 400-550 ℃, be incubated 10-15 hour, it is air-cooled to come out of the stove when cooling off furnace temperature to 180-250 ℃.
2, process annealing
Adopt cold-rolling equipment that the cast-rolling stock after homogenizing annealing is handled is rolled processing, sotck thinkness after rolling is 0.45-0.70mm, then cast-rolling stock is rolled into annealing furnace, is rapidly heated to 350-400 ℃, be incubated 2-4 hour, it is air-cooled to come out of the stove when cooling off furnace temperature to 180-250 ℃.
3, flash annealing
Adopt cold rolling and middle rolling plant that the self-produced cast-rolling stock after handling through process annealing is rolled processing, sotck thinkness after rolling is 0.020-0.040mm, then cast-rolling stock is rolled into annealing furnace, is rapidly heated to 140-200 ℃, be incubated 10-15 hour, the air cooling of directly coming out of the stove.
The contriver adopts prior art and the technology of the present invention that cast-rolling stock is heat-treated respectively, its result such as following table:
The thermal effectiveness contrast table
| Project | Rolling situation | Rolling minimal thickness | Yield rate % | Pin hole (individual/square |
| mm | Rice) | |||
| There is not any thermal treatment cast-rolling stock | 0.08mm raising speed difficulty during following thickness, broken belt are frequent | 0.03 | 35 | Do not have |
| The cast-rolling stock that homogenizing is handled | Broken belt is frequent during ply rolling | 0.006 | 65 | 4000~10000 |
| The heat treated cast-rolling stock of homogenizing annealing and process annealing | Comparatively smooth during ply rolling | 0.006 | 70 | 500~2500 |
| The cast-rolling stock that homogenizing annealing, process annealing and flash annealing are handled | Very well during ply rolling | 0.006 | 82 | 20~400 |
| 0.005 | 70 | In 4000 |
As seen from the above table, the present invention has easy and simple to handle, can effectively improve aluminium foil blank tissue morphology, improves advantages such as aluminum foil finished product quality.
Embodiment:
The handled cast-rolling stock of embodiment is self-control, and equipment is known conventional equipment.
Embodiment 1:
The heat treatment technics of present embodiment comprises homogenizing annealing, process annealing and three kinds of modes of flash annealing, and is specific as follows:
1, homogenizing annealing
Adopt cold-rolling equipment that cast-rolling stock is purchased in the market of 5.5mm and carry out once rollingly, the sotck thinkness after rolling is 2.0mm, then cast-rolling stock is rolled into annealing furnace, is rapidly heated to 400 ℃, be incubated 10 hours, and it is air-cooled to come out of the stove when cooling off furnace temperature to 180 ℃.
4, process annealing
Adopt cold-rolling equipment that the cast-rolling stock after homogenizing annealing is handled is rolled processing, sotck thinkness after rolling is 0.45mm, then cast-rolling stock is rolled into annealing furnace, is rapidly heated to 350 ℃, be incubated 2 hours, it is air-cooled to come out of the stove during cooling furnace temperature to 180 ℃.
5, flash annealing
Adopt cold rolling and middle rolling plant that the cast-rolling stock after process annealing is handled is rolled processing, the sotck thinkness after rolling is 0.020mm, then cast-rolling stock is rolled into annealing furnace, is rapidly heated to 140 ℃, is incubated 10 hours, the air cooling of directly coming out of the stove.
Make the aluminium foil of 0.005mm thickness with the cast-rolling stock after above-mentioned processing, yield rate reaches 70%, 4000/square metre of pin holes.
Embodiment 2:
The heat treatment technics of present embodiment comprises homogenizing annealing, process annealing and three kinds of modes of flash annealing, and is specific as follows:
1, homogenizing annealing
It is rolling to adopt cold-rolling equipment that the self-control cast-rolling stock of 6mm is carried out once, and the sotck thinkness after rolling is 3mm, then cast-rolling stock is rolled into annealing furnace, is rapidly heated to 480 ℃, be incubated 12 hours, and it is air-cooled to come out of the stove when cooling off furnace temperature to 210 ℃.
2, process annealing
Adopt cold-rolling equipment that the cast-rolling stock after homogenizing annealing is handled is rolled processing, sotck thinkness after rolling is 0.55mm, then cast-rolling stock is rolled into annealing furnace, is rapidly heated to 370 ℃, be incubated 3 hours, it is air-cooled to come out of the stove during cooling furnace temperature to 210 ℃.
3, flash annealing
Adopt cold rolling and middle rolling plant that the self-produced cast-rolling stock after process annealing is handled is rolled processing, the sotck thinkness after rolling is 0.030mm, then cast-rolling stock is rolled into annealing furnace, is rapidly heated to 170 ℃, is incubated 12 hours, the air cooling of directly coming out of the stove.
Make the aluminium foil of 0.005mm thickness with the cast-rolling stock after above-mentioned processing, yield rate reaches 70%, 3800/square metre of pin holes.
Embodiment 3:
The heat treatment technics of present embodiment comprises homogenizing annealing, process annealing and three kinds of modes of flash annealing, and is specific as follows:
1, homogenizing annealing
It is rolling to adopt cold-rolling equipment that the self-control cast-rolling stock of 6.5mm is carried out once, and the sotck thinkness after rolling is 3.5mm, then cast-rolling stock is rolled into annealing furnace, is rapidly heated to 550 ℃, be incubated 15 hours, and it is air-cooled to come out of the stove when cooling off furnace temperature to 250 ℃.
2, process annealing
Adopt cold-rolling equipment that the cast-rolling stock after homogenizing annealing is handled is rolled processing, sotck thinkness after rolling is 0.70mm, then cast-rolling stock is rolled into annealing furnace, is rapidly heated to 400 ℃, be incubated 4 hours, it is air-cooled to come out of the stove during cooling furnace temperature to 250 ℃.
3, flash annealing
Adopt cold rolling and middle rolling plant that the self-produced cast-rolling stock after process annealing is handled is rolled processing, the sotck thinkness after rolling is 0.040mm, then cast-rolling stock is rolled into annealing furnace, is rapidly heated to 200 ℃, is incubated 15 hours, the air cooling of directly coming out of the stove.
Make the aluminium foil of 0.005mm thickness with the cast-rolling stock after above-mentioned processing, yield rate reaches 70%, 3600/square metre of pin holes.
Claims (1)
1, a kind ofly produces heat treating method in the process of super-thin aluminium foil, comprise homogenizing annealing, process annealing operation, it is characterized in that also comprising the flash annealing operation with cast-rolling stock; Wherein:
A. homogenizing annealing is: adopt cold-rolling equipment to carry out once rolling to the cast-rolling stock of 5.5-6.5mm, material thickness after rolling is 2.0-3.5mm, then cast-rolling stock is rolled into annealing furnace, be rapidly heated to 400-550 ℃, be incubated 10-15 hour, it is air-cooled to come out of the stove when cooling off furnace temperature to 180-250 ℃;
B. process annealing is: adopt cold-rolling equipment that the cast-rolling stock after homogenizing annealing is handled is rolled processing, sotck thinkness after rolling is 0.45-0.70mm, then cast-rolling stock is rolled into annealing furnace, be rapidly heated to 350-400 ℃, be incubated 2-4 hour, it is air-cooled to come out of the stove when cooling off furnace temperature to 180-250 ℃;
C. flash annealing is: adopt cold rolling and middle rolling plant that the self-produced cast-rolling stock after handling through process annealing is rolled processing, sotck thinkness after rolling is 0.020-0.040mm, then cast-rolling stock is rolled into annealing furnace, be rapidly heated to 140-200 ℃, be incubated 10-15 hour, the air cooling of directly coming out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100108257A CN100371490C (en) | 2006-04-18 | 2006-04-18 | Thermal processing method in production process of super-thin aluminium foil by cast-rolling stock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100108257A CN100371490C (en) | 2006-04-18 | 2006-04-18 | Thermal processing method in production process of super-thin aluminium foil by cast-rolling stock |
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| Publication Number | Publication Date |
|---|---|
| CN1837399A true CN1837399A (en) | 2006-09-27 |
| CN100371490C CN100371490C (en) | 2008-02-27 |
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| CNB2006100108257A Expired - Fee Related CN100371490C (en) | 2006-04-18 | 2006-04-18 | Thermal processing method in production process of super-thin aluminium foil by cast-rolling stock |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403080B (en) * | 2008-11-21 | 2010-06-02 | 北京工业大学 | Thermal treatment process for erbium-containing aluminum-magnesium-manganese wrought aluminium alloy |
| CN102284483A (en) * | 2011-07-29 | 2011-12-21 | 江苏中基复合材料有限公司 | Production process for rolling light gauge aluminum foil |
| CN102978546A (en) * | 2012-12-25 | 2013-03-20 | 云南铝业股份有限公司 | Thermal treatment method for cast-rolling 1235 wide-amplitude double-zero aluminum foil blank by electrolytic aluminum liquid |
| CN103785800A (en) * | 2014-01-14 | 2014-05-14 | 洛阳万基铝加工有限公司 | Production method for double-zero aluminum foil |
| CN108300911A (en) * | 2018-01-29 | 2018-07-20 | 安徽美信铝业有限公司 | A kind of 8111 alloy aluminium foil production method of cast-rolling stock system |
| CN113106363A (en) * | 2021-04-14 | 2021-07-13 | 内蒙古联晟新能源材料有限公司 | Homogenizing annealing process for improving white oil spots on surface of double-zero aluminum foil blank |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1121506C (en) * | 2001-09-06 | 2003-09-17 | 北京南辰秀普金属材料研究所 | Production process of aluminium foil for high-voltage anode of electrolytic capacitor |
-
2006
- 2006-04-18 CN CNB2006100108257A patent/CN100371490C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403080B (en) * | 2008-11-21 | 2010-06-02 | 北京工业大学 | Thermal treatment process for erbium-containing aluminum-magnesium-manganese wrought aluminium alloy |
| CN102284483A (en) * | 2011-07-29 | 2011-12-21 | 江苏中基复合材料有限公司 | Production process for rolling light gauge aluminum foil |
| CN102284483B (en) * | 2011-07-29 | 2012-11-21 | 江苏中基复合材料有限公司 | Production process for rolling light gauge aluminum foil |
| CN102978546A (en) * | 2012-12-25 | 2013-03-20 | 云南铝业股份有限公司 | Thermal treatment method for cast-rolling 1235 wide-amplitude double-zero aluminum foil blank by electrolytic aluminum liquid |
| CN103785800A (en) * | 2014-01-14 | 2014-05-14 | 洛阳万基铝加工有限公司 | Production method for double-zero aluminum foil |
| CN103785800B (en) * | 2014-01-14 | 2016-03-30 | 洛阳万基铝加工有限公司 | A kind of production method of double-zero aluminum foil |
| CN108300911A (en) * | 2018-01-29 | 2018-07-20 | 安徽美信铝业有限公司 | A kind of 8111 alloy aluminium foil production method of cast-rolling stock system |
| CN113106363A (en) * | 2021-04-14 | 2021-07-13 | 内蒙古联晟新能源材料有限公司 | Homogenizing annealing process for improving white oil spots on surface of double-zero aluminum foil blank |
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| Publication number | Publication date |
|---|---|
| CN100371490C (en) | 2008-02-27 |
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| C14 | Grant of patent or utility model | ||
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Owner name: YUNNAN HAOXIN ALUMINUM FOIL CO., LTD. Free format text: FORMER OWNER: YUNNAN XINMEILU ALUMINUM FOIL CO., LTD. Effective date: 20100831 |
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Effective date of registration: 20100831 Address after: 650216 Jinma temple, Guandu District, Yunnan, Kunming Patentee after: Yunnan Haoxin Aluminum Foil Co., Ltd. Address before: 650216 Jinma temple, Guandu District, Yunnan, Kunming Patentee before: Yunnan Xinmeilu Aluminum Foil Co., Ltd. |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Sanxin aluminium foil Co., Ltd. Assignor: Yunnan Haoxin Aluminum Foil Co., Ltd. Contract record no.: 2011530000085 Denomination of invention: Thermal processing method in production process of super-thin aluminium foil by cast-rolling stock Granted publication date: 20080227 License type: Exclusive License Open date: 20060927 Record date: 20111011 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20140418 |