CN102560294A - Annealing process for aluminum foil - Google Patents
Annealing process for aluminum foil Download PDFInfo
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- CN102560294A CN102560294A CN201010608004XA CN201010608004A CN102560294A CN 102560294 A CN102560294 A CN 102560294A CN 201010608004X A CN201010608004X A CN 201010608004XA CN 201010608004 A CN201010608004 A CN 201010608004A CN 102560294 A CN102560294 A CN 102560294A
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Abstract
The invention relates to an annealing process for single/double zero foil, in particular to an annealing process for single/double zero foil of over 700 millimeters. In the technical scheme, the annealing process for aluminum foil comprises the following steps of: heating at a speed of 2 to 12 DEG C/hour; keeping the temperature of between 180 and 210 DEG C for 50 to 140 hours; and cooling at a speed of 0.5 to 12 DEG C/hour. The annealing process has the advantages that: pressure stress is eliminated by controlling the heating speed and adjusting heat-insulating temperature and heat-insulating time to reduce the probability of bulging; and the annealing time is shortened on the premise of reducing the bulging to ensure the tensile strength of the aluminum foil. According to the annealing process, by controlling the cooling speed of different sections, the bulging is controlled due to the low-speed cooling of a high-temperature section, and the production efficiency is improved due to the high-speed cooling of a low-temperature section.
Description
Technical field
The present invention relates to the annealing technology of single/two zero paper tinsels, specially refer to the annealing technology of the above list of 700mm/two zero paper tinsels.
Background technology
Aluminium foil, especially single double-zero aluminum foil is widely used in the wrapping material of food, beverage, cigarette, medicine, family daily necessity etc.Particularly aluminium foil and plastics and paper compound after, combine the thermally sealed property of the intensity of the shielding of aluminium foil and paper, plastics together, further improved as the necessary shielding properties of wrapping material steam, air, ultraviolet ray and bacterium etc.Therefore, the aluminium foil general requirement of these purposes possesses following performance: 1. the surface that has cleaning, light; 2. has certain tensile strength, to improve aluminium foil and plastics and paper composite efficiency.
In industrial production, just rolling intact aluminium foil surface more or less all has ROLLING OIL, but aluminium foil strip is oily, is unfavorable for follow-up compound of aluminium foil, and aluminium foil if band is oily, will pollute the article of contracting for fixed output quotas as wrapping material simultaneously.The main purpose of the finished products of aluminium foil is for eliminating the ROLLING OIL of aluminium foil.Because in the aluminum foil finished products process, also have the change of aluminium foil mechanical property, temperature is high more; Annealing time is long more; The mechanical property of aluminum foil finished product is low more, and therefore, the selection of annealing temperature and annealing time influences very big to the removal of ROLLING OIL and the final mechanical property of finished product.In annealing process,, on the one hand, can influence the tensile strength of aluminium foil if annealing time is oversize or temperature is too high; Reduce aluminium foil and plastics and paper composite efficiency, on the other hand, the aluminium foil internal-external temperature difference is excessive, and the outside surface aluminium foil expands with heat and contract with cold inhomogeneous; Add the influence of ROLLING OIL evaporable, cause aluminium foil surface the heat drum to occur, the heat drum is also named barring, perhaps has been drum; Perhaps be thick stick, the aluminium that has played hot drum twists in the follow-up recombination process, can not be open and flat preferably; Influenced with plastics and paper compoundly, therefore, generally all will play the aluminium volume of heat drum and pull down.The thickness of heat drum can surpass 30mm when serious, causes comprehensive scrap rate more than 1%, and more serious is the degradation that can cause the aluminium volume, and is a lot of to the benefit influence of Aluminum Foil Factory.If temperature rise rate is too slow, annealing time increases, and on the one hand, reduces production efficiency, has increased energy consumption, on the other hand, too slow temperature rise rate, the temperature difference of aluminium foil inside and outside can not eliminating offsets having little significance of heat extraction drum.Therefore it is crucial controlling annealing time, is to control the height of temperature and the speed of the cooling that heats up well and will control the key of annealing time well.The patent No. discloses a kind of anneal cargo jack preventing method for double-zero aluminum foil finished product for the CN200810234535.X document; The heating-cooling time to shortening in the lehre is played certain effect, but is to use the aluminium volume after this method annealing that the heat drum is still arranged, and has increased the cost of investment and the running cost of drying room; Total annealing time of annealing does not simultaneously reduce; Also have certain increasing, therefore, this method does not obtain general popularization.
Summary of the invention
Technical problem to be solved by this invention provides a kind of annealing process that rouses, strengthens aluminium foil tensile strength through controlled temperature and time with minimizing aluminium foil annealing heat.
For addressing the above problem, the technical scheme that the present invention taked is:
A kind of aluminium foil annealing process comprises intensification, insulation, cooling three phases; In the temperature rise period, temperature rise rate is 2 ℃-12 ℃/hour, and at holding stage, holding temperature is 180 ℃-210 ℃; Soaking time is 50 hours-140 hours, and at temperature-fall period, rate of temperature fall is 0.5 ℃-12 ℃/hour.
Preferably, in the temperature rise period, temperature rise rate is 2 ℃-5 ℃/hour, and at holding stage, holding temperature is 180 ℃-190 ℃, and soaking time is 50 hours-140 hours, and at temperature-fall period, rate of temperature fall is 0.5 ℃-4 ℃/hour.
Preferably, in the temperature rise period, temperature rise rate is 5 ℃-9 ℃/hour, and at holding stage, holding temperature is 190 ℃-200 ℃, and soaking time is 50 hours-140 hours, and at temperature-fall period, rate of temperature fall is 4 ℃-8 ℃/hour.
Preferably, in the temperature rise period, temperature rise rate is 9 ℃-12 ℃/hour, and at holding stage, holding temperature is 200 ℃-210 ℃, and soaking time is 50 hours-140 hours, and at temperature-fall period, rate of temperature fall is 8 ℃-12 ℃/hour.
Preferably, with the rate of temperature fall of temperature when the temperature of holding temperature is reduced to 150 ℃ be 0.5 ℃-6 ℃ hours, be 3 ℃-12 ℃/hour with the rate of temperature fall of temperature when 150 ℃ are reduced to room temperature.
The invention has the beneficial effects as follows: through speed adjustment holding temperature and the soaking time that control heats up, eliminate stress, thereby reduce the probability that causes the heat drum, under the prerequisite that reduces the heat drum, shortened annealing time, thereby guaranteed the tensile strength of aluminium foil.The present invention is also through the rate of temperature fall of the present invention through the different sections of control, and the generation of hot drum has been controlled in the cooling at a slow speed of high temperature section on the one hand, and on the other hand, low-temperature zone is faster lowered the temperature and improved production efficiency.
Embodiment
Among the following embodiment, the thickness of the aluminium foil of being got is 0.01mm-0.09mm and 0.001mm-0.009mm.
Embodiment 1
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 2 ℃/hour, and at holding stage, holding temperature is 180 ℃, and soaking time is 140 hours, and at temperature-fall period, rate of temperature fall is 0.5 ℃/hour.
Embodiment 2
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 3 ℃/hour, and at holding stage, holding temperature is 183 ℃, and soaking time is 130 hours, and at temperature-fall period, rate of temperature fall is 1 ℃/hour.
Embodiment 3
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 4 ℃/hour, and at holding stage, holding temperature is 186 ℃, and soaking time is 120 hours, and at temperature-fall period, rate of temperature fall is 2 ℃/hour.
Embodiment 4
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 5 ℃/hour, and at holding stage, holding temperature is 189 ℃, and soaking time is 110 hours, and at temperature-fall period, rate of temperature fall is 3 ℃/hour.
Embodiment 5
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 6 ℃/hour, and at holding stage, holding temperature is 192 ℃, and soaking time is 100 hours, and at temperature-fall period, rate of temperature fall is 4 ℃/hour.
Embodiment 6
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 7 ℃/hour, and at holding stage, holding temperature is 195 ℃, and soaking time is 90 hours, and at temperature-fall period, rate of temperature fall is 5 ℃/hour.
Embodiment 7
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 8 ℃/hour, and at holding stage, holding temperature is 198 ℃, and soaking time is 90 hours, and at temperature-fall period, rate of temperature fall is 6 ℃/hour.
Embodiment 8
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 9 ℃/hour, and at holding stage, holding temperature is 201 ℃, and soaking time is 70 hours, and at temperature-fall period, rate of temperature fall is 7 ℃/hour.
Embodiment 9
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 10 ℃/hour, and at holding stage, holding temperature is 204 ℃, and soaking time is 60 hours, and at temperature-fall period, rate of temperature fall is 8 ℃/hour.
Embodiment 10
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 11 ℃/hour, and at holding stage, holding temperature is 207 ℃, and soaking time is 50 hours, and at temperature-fall period, rate of temperature fall is 9 ℃/hour.
Embodiment 11
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 12 ℃/hour, and at holding stage, holding temperature is 210 ℃, and soaking time is 65 hours, and at temperature-fall period, rate of temperature fall is 10 ℃/hour.
Embodiment 12
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 3 ℃/hour, and at holding stage, holding temperature is 210 ℃, and soaking time is 100 hours, and at temperature-fall period, rate of temperature fall is 11 ℃/hour.
Embodiment 13
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 5 ℃/hour, and at holding stage, holding temperature is 201 ℃, and soaking time is 80 hours, and at temperature-fall period, rate of temperature fall is 12 ℃/hour.
Embodiment 14
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 10 ℃/hour, and at holding stage, holding temperature is 192 ℃, and soaking time is 120 hours, and at temperature-fall period, rate of temperature fall is 2 ℃/hour.
Embodiment 15
A kind of aluminium foil annealing process comprises intensification, insulation, and the cooling three phases, in the temperature rise period, temperature rise rate is 12 ℃/hour, and at holding stage, holding temperature is 189 ℃, and soaking time is 60 hours, and at temperature-fall period, rate of temperature fall is 6 ℃/hour.
Claims (5)
1. an aluminium foil annealing process comprises intensification, insulation; The cooling three phases, it is characterized in that: in the temperature rise period, temperature rise rate is 2 ℃-12 ℃/hour; At holding stage, holding temperature is 180 ℃-210 ℃, and soaking time is 50 hours-140 hours; At temperature-fall period, rate of temperature fall is 0.5 ℃-12 ℃/hour.
2. a kind of aluminium foil annealing process according to claim 1 is characterized in that: in the temperature rise period, temperature rise rate is 2 ℃-5 ℃/hour; At holding stage, holding temperature is 180 ℃-190 ℃, and soaking time is 50 hours-140 hours; At temperature-fall period, rate of temperature fall is 0.5 ℃-4 ℃/hour.
3. a kind of aluminium foil annealing process according to claim 1 is characterized in that: in the temperature rise period, temperature rise rate is 5 ℃-9 ℃/hour; At holding stage, holding temperature is 190 ℃-200 ℃, and soaking time is 50 hours-140 hours; At temperature-fall period, rate of temperature fall is 4 ℃-8 ℃/hour.
4. a kind of aluminium foil annealing process according to claim 1 is characterized in that: in the temperature rise period, temperature rise rate is 9 ℃-12 ℃/hour; At holding stage, holding temperature is 200 ℃-210 ℃, and soaking time is 50 hours-140 hours; At temperature-fall period, rate of temperature fall is 8 ℃-12 ℃/hour.
5. according to the described a kind of annealing process of arbitrary claim in the claim 1 to 4; It is characterized in that: with the rate of temperature fall of temperature when the temperature of holding temperature is reduced to 150 ℃ be 0.5 ℃-6 ℃ hours, be 3 ℃-12 ℃/hour with the rate of temperature fall of temperature when 150 ℃ are reduced to room temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010608004.XA CN102560294B (en) | 2010-12-28 | 2010-12-28 | Annealing process for aluminum foil |
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| CN201010608004.XA CN102560294B (en) | 2010-12-28 | 2010-12-28 | Annealing process for aluminum foil |
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| CN102560294B CN102560294B (en) | 2014-03-12 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561671A (en) * | 2014-12-29 | 2015-04-29 | 镇江鼎胜铝业股份有限公司 | Method for preparing high-elongation medical aluminum foil from cast rolled stock |
| CN106282863A (en) * | 2016-09-08 | 2017-01-04 | 江苏大亚铝业有限公司 | High-peeling strength food packaging aluminium foil high temperature negative pressure anneal technique |
| CN107058919A (en) * | 2017-03-27 | 2017-08-18 | 江苏大亚铝业有限公司 | The annealing process of milk pack aluminium foil |
| CN107904389A (en) * | 2017-11-20 | 2018-04-13 | 福州大学 | A kind of method for annealing of copper niobium composite wire |
| CN110629136A (en) * | 2019-10-28 | 2019-12-31 | 江苏大亚铝业有限公司 | Annealing furnace equipment and using method thereof |
| CN113151756A (en) * | 2021-04-19 | 2021-07-23 | 广西柳州银海铝业股份有限公司 | Method for eliminating annealing wrinkling defect of cold-rolled aluminum coil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546716A (en) * | 2003-12-02 | 2004-11-17 | 北京科技大学 | Electrolytic capacitor aluminum foil continuous annealing process |
| JP2009170934A (en) * | 2009-04-21 | 2009-07-30 | Showa Denko Kk | Method of manufacturing aluminum foil for electrode of electrolytic capacitor |
-
2010
- 2010-12-28 CN CN201010608004.XA patent/CN102560294B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546716A (en) * | 2003-12-02 | 2004-11-17 | 北京科技大学 | Electrolytic capacitor aluminum foil continuous annealing process |
| JP2009170934A (en) * | 2009-04-21 | 2009-07-30 | Showa Denko Kk | Method of manufacturing aluminum foil for electrode of electrolytic capacitor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561671A (en) * | 2014-12-29 | 2015-04-29 | 镇江鼎胜铝业股份有限公司 | Method for preparing high-elongation medical aluminum foil from cast rolled stock |
| CN106282863A (en) * | 2016-09-08 | 2017-01-04 | 江苏大亚铝业有限公司 | High-peeling strength food packaging aluminium foil high temperature negative pressure anneal technique |
| CN106282863B (en) * | 2016-09-08 | 2018-04-24 | 江苏大亚铝业有限公司 | The food packaging aluminium foil high temperature negative pressure anneal technique of high-peeling strength |
| CN107058919A (en) * | 2017-03-27 | 2017-08-18 | 江苏大亚铝业有限公司 | The annealing process of milk pack aluminium foil |
| CN107904389A (en) * | 2017-11-20 | 2018-04-13 | 福州大学 | A kind of method for annealing of copper niobium composite wire |
| CN110629136A (en) * | 2019-10-28 | 2019-12-31 | 江苏大亚铝业有限公司 | Annealing furnace equipment and using method thereof |
| CN113151756A (en) * | 2021-04-19 | 2021-07-23 | 广西柳州银海铝业股份有限公司 | Method for eliminating annealing wrinkling defect of cold-rolled aluminum coil |
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| CN102560294B (en) | 2014-03-12 |
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Address after: Taoyuan County in Hunan province Changde city 415700 disk town Chuangyuan Industrial Park Patentee after: Suntown Technology Group Corporation Address before: Venus Road 410200 in Hunan province Changsha No. 109 Sheng Tong Industrial Park Development Division Patentee before: Hunan Shengtong Technology Group Co., Ltd. |