CN111961995B - Heat treatment method of aluminum foil finished product roll - Google Patents
Heat treatment method of aluminum foil finished product roll Download PDFInfo
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- CN111961995B CN111961995B CN202010746172.9A CN202010746172A CN111961995B CN 111961995 B CN111961995 B CN 111961995B CN 202010746172 A CN202010746172 A CN 202010746172A CN 111961995 B CN111961995 B CN 111961995B
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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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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- Crystallography & Structural Chemistry (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The invention discloses a heat treatment method of an aluminum foil finished product roll. Heating the finished aluminum foil coil in an annealing furnace, heating to 200 ℃ after 10-20 h, and preserving heat for 5-20 h; continuously heating, heating to 240 ℃ after 5-10 h, and keeping the temperature for 10-50 h; then, pressing and loosening the furnace door of the annealing furnace, and half opening the furnace door for 1-2 hours; then, opening the furnace door for 1-2 hours, and discharging and cooling; and packaging the obtained product after cooling. By adopting the technical scheme of the invention to carry out heat treatment on the finished aluminum foil coil, the technical problem of yellowing of the appearance of the annealed single-furnace high-capacity aluminum foil coil can be effectively solved, and the loss of a large amount of products caused by the yellowing can be reduced.
Description
The technical field is as follows:
the invention belongs to the technical field of refractory material heat treatment, and particularly relates to a heat treatment method of an aluminum foil finished product roll.
Secondly, background art:
the final procedure of the aluminum foil production is finished product annealing, and the finished product of the aluminum foil for the cable is delivered in a soft state under the general condition. With the increasingly fierce competition of external markets, companies have made great efforts to improve production efficiency and save energy and reduce consumption in order to meet market demands, and equipment is greatly improved. The capacity and the heat preservation design of the finished product furnace are greatly improved. Greatly improves the aspects of energy saving, consumption reduction and environmental protection. According to the existing traditional product production process, the novel annealing furnace is used for production, more than 60% of products are subjected to heat treatment, the material roll is seriously yellow, the appearance of finished products is unqualified, the product quality is greatly influenced by the failure of shipment, and the product stability is not ensured. In view of the situation, technicians related to internal organizations of companies carefully summarize defect occurrence rules, and adopt a method of adjusting equipment and process treatment methods to improve the defect occurrence rules.
In the existing heat treatment process of the aluminum foil finished product roll, the capacity of a used finished product annealing furnace is doubled to 40-50 tons, a furnace body heating system and a thermal cycle are different from those of the previous furnace body structure, after the cut material roll is subjected to annealing treatment, the outer surface of the material roll is seriously yellowed, the yellowing condition does not extend to the interior of a roll layer, and the appearance of an upper material roll of an annealing material rack is seriously yellowed. Based on the yellowing, the researchers in this field have conducted related tests (for example, by adjusting the negative pressure control of the furnace, improving the smoke exhaust system of the furnace, increasing the heat circulation air control, and requiring the split material roll to reduce the tension and increase the porosity of the material roll), but the yellowing is not improved.
Thirdly, the invention content:
the technical problem to be solved by the invention is as follows: in order to overcome the defects of the heat treatment process of the finished aluminum foil roll in the prior art (namely the phenomenon of serious yellowing of the exterior of the roll after heat treatment, unqualified finished product appearance and failure in shipment), the invention provides a novel heat treatment method of the finished aluminum foil roll. By adopting the technical scheme of the invention, the phenomenon that the outer part of the aluminum foil roll is seriously yellowed can be completely solved.
In order to solve the problems, the invention adopts the technical scheme that:
the invention provides a heat treatment method of an aluminum foil finished product roll, which comprises the following steps:
a. placing the finished aluminum foil coil in an annealing furnace, heating to 200 ℃ after 10-20 hours, and preserving heat for 5-20 hours under the temperature condition;
b. after the first heat preservation is finished, continuously heating, heating to 240 ℃ after 5-10 h, and preserving heat for 10-50 h under the temperature condition;
c. after the second heat preservation is finished, pressing and loosening the furnace door of the annealing furnace, and half opening the furnace door for 1-2 hours; then, opening the furnace door for 1-2 hours, and discharging and cooling;
d. and packaging the obtained product after cooling.
According to the heat treatment method of the aluminum foil finished product roll, in the step a, the temperature rise time is 15-20 hours, and the heat preservation time is 5-10 hours.
According to the heat treatment method of the finished aluminum foil roll, the heat preservation time in the step b is 40-50 h.
According to the heat treatment method of the finished aluminum foil roll, the product is cooled to room temperature +/-3 ℃ in the step d.
The invention has the following positive beneficial effects:
1. by adopting the technical scheme of the invention to carry out heat treatment on the finished aluminum foil coil, the technical problem of yellowing of the appearance of the annealed single-furnace high-capacity aluminum foil coil can be effectively solved, and the loss of a large amount of products caused by the yellowing can be reduced.
2. By adopting the technical scheme of the invention, the aluminum foil finished product coil is subjected to heat treatment, the time of the low-temperature treatment section is prolonged, the total time is not changed, the performance requirement is met, and meanwhile, a large amount of energy consumption is saved.
3. By adopting the heat treatment method, the cut material roll achieves various performance indexes of the product required in the past after heat treatment, and simultaneously, the quality defect that the cut material roll is yellow in appearance is thoroughly solved.
4. After the aluminum foil finished product is subjected to heat treatment, the product state reaches an O state, the tensile strength reaches 70-80 Mpa, the elongation rate reaches more than 6 percent of main mechanical performance indexes, and the standard of internal control requirements is met.
5. The material roll after heat treatment is subjected to unreeling test aluminum foil adhesion characteristic test, the adhesion degree reaches the internal control standard of less than or equal to 0.5m, and the material roll meets the use requirements of customers.
6. The material roll after heat treatment in the technical scheme of the invention is subjected to destructive brushing performance test once every 200 meters, and the test result reaches the standard requirement of A level.
In conclusion, the invention has obvious economic benefit and social benefit.
Fourthly, explanation of the attached drawings:
FIG. 1 is one of the pictures of the product obtained after the prior art heat treatment of a finished roll of aluminum foil;
FIG. 2 is a second drawing of a product obtained by heat-treating a finished roll of aluminum foil according to the prior art;
FIG. 3 is a third picture of a product obtained after heat treatment of a finished roll of aluminum foil according to the prior art;
FIG. 4 is one of the pictures of the product obtained after the heat treatment of the finished roll of aluminum foil by the method of the present invention;
FIG. 5 is a second picture of the product obtained after the heat treatment of the finished roll of aluminum foil according to the present invention.
The fifth embodiment is as follows:
the invention is further illustrated by the following examples, which do not limit the scope of the invention.
Example 1:
the invention relates to a heat treatment method of an aluminum foil finished product roll, which comprises the following detailed steps:
a. placing the finished aluminum foil coil in an annealing furnace, heating to 200 ℃ after 15h, and preserving heat for 5h under the temperature condition;
b. continuing heating after the first heat preservation is finished, heating to 240 ℃ after 5h, and preserving heat for 40h under the temperature condition;
c. after the second heat preservation is finished, pressing and loosening the furnace door of the annealing furnace, and half opening the furnace door for 1 h; then opening the furnace door for 2h, discharging and cooling;
d. cooling to room temperature + -3 deg.C, and packaging.
The finished product obtained in this example was subjected to performance testing, and the test results are detailed in table 1.
Table 1 results of the performance tests on the finished product obtained in example 1
Example 2:
the invention relates to a heat treatment method of an aluminum foil finished product roll, which comprises the following detailed steps:
a. placing the finished aluminum foil coil in an annealing furnace, heating to 200 ℃ after 18h, and preserving heat for 8h under the temperature condition;
b. continuing heating after the first heat preservation is finished, heating to 240 ℃ after 8h, and preserving heat for 43h under the temperature condition;
c. after the second heat preservation is finished, pressing and loosening the furnace door of the annealing furnace, and half opening the furnace door for 2 h; then opening the furnace door for 1h, discharging and cooling;
d. cooling to room temperature + -3 deg.C, and packaging.
The finished product obtained in this example was subjected to performance testing, and the test results are detailed in table 2.
Table 2 results of the performance test on the finished product obtained in example 2
Example 3:
the invention relates to a heat treatment method of an aluminum foil finished product roll, which comprises the following detailed steps:
a. placing the finished aluminum foil coil in an annealing furnace, heating to 200 ℃ after 20 hours, and preserving heat for 10 hours under the temperature condition;
b. continuing heating after the first heat preservation is finished, heating to 240 ℃ after 10h, and preserving heat for 50h under the temperature condition;
c. after the second heat preservation is finished, pressing and loosening the furnace door of the annealing furnace, and half opening the furnace door for 1 h; then opening the furnace door for 2h, discharging and cooling;
d. cooling to room temperature + -3 deg.C, and packaging.
The finished product obtained in this example was subjected to a performance test, and the test results are detailed in table 3.
Table 3 results of the performance test on the finished product obtained in example 3
Example 4:
the invention relates to a heat treatment method of an aluminum foil finished product roll, which comprises the following detailed steps:
a. placing the finished aluminum foil coil in an annealing furnace, heating to 200 ℃ after 13h, and preserving heat for 12h under the temperature condition;
b. continuing heating after the first heat preservation is finished, heating to 240 ℃ after 6h, and preserving heat for 36h under the temperature condition;
c. after the second heat preservation is finished, pressing and loosening the furnace door of the annealing furnace, and half opening the furnace door for 1.5 h; then opening the furnace door for 1.5h, discharging and cooling;
d. cooling to room temperature + -3 deg.C, and packaging.
The finished product obtained in this example was subjected to performance testing, and the test results are detailed in table 4.
Table 4 results of the performance test on the finished product obtained in example 4
Example 5:
the invention relates to a heat treatment method of an aluminum foil finished product roll, which comprises the following detailed steps:
a. placing the finished aluminum foil coil in an annealing furnace, heating to 200 ℃ after 10 hours, and keeping the temperature for 15 hours under the temperature condition;
b. continuing to heat up after the first heat preservation is finished, heating up to 240 ℃ after 10 hours, and preserving heat for 30 hours under the temperature condition;
c. after the second heat preservation is finished, pressing and loosening the furnace door of the annealing furnace, and half opening the furnace door for 1 h; then opening the furnace door for 2h, discharging and cooling;
d. cooling to room temperature + -3 deg.C, and packaging.
The finished product obtained in this example was subjected to performance testing, and the test results are detailed in table 5.
Table 5 results of performance tests on the finished product obtained in example 5
Claims (2)
1. A heat treatment method for finished rolls of aluminum foil is characterized by comprising the following steps:
a. placing the finished aluminum foil coil in an annealing furnace, heating to 200 ℃ after 15-20 h, and preserving heat for 5-10 h under the temperature condition;
b. after the first heat preservation is finished, continuously heating, heating to 240 ℃ after 5-10 h, and preserving heat for 40-50 h under the temperature condition;
c. after the second heat preservation is finished, pressing and loosening the furnace door of the annealing furnace, and half opening the furnace door for 1-2 hours; then, opening the furnace door for 1-2 hours, and discharging and cooling;
d. and packaging the obtained product after cooling.
2. The method of claim 1, wherein the step of heat treating the finished roll of aluminum foil comprises: and d, cooling the product to room temperature +/-3 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010746172.9A CN111961995B (en) | 2020-07-29 | 2020-07-29 | Heat treatment method of aluminum foil finished product roll |
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| CN202010746172.9A CN111961995B (en) | 2020-07-29 | 2020-07-29 | Heat treatment method of aluminum foil finished product roll |
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| CN111961995B true CN111961995B (en) | 2021-11-26 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429634A (en) * | 2008-12-12 | 2009-05-13 | 江苏常铝铝业股份有限公司 | Annealing method of cast-rolling aluminum foil used for air conditioner radiation fin |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040023810A1 (en) * | 2002-07-26 | 2004-02-05 | Alex Ignatiev | Superconductor material on a tape substrate |
| CN102181756B (en) * | 2011-04-22 | 2013-04-03 | 邱镇来 | Obstruction and explosion suppression material aluminum foil of oil tank for gas station |
| CN102441568B (en) * | 2011-10-20 | 2013-08-14 | 山东鲁丰铝箔股份有限公司 | Production method for one-side bright cold-formed medicinal aluminum foil |
| JP5840923B2 (en) * | 2011-11-07 | 2016-01-06 | 昭和電工パッケージング株式会社 | Battery exterior body, method for producing battery exterior body, and lithium secondary battery |
| CN102899594B (en) * | 2012-11-17 | 2014-07-30 | 镇江鼎胜铝业股份有限公司 | Manufacturing method of aluminum foil used for 1060 alloy cable |
| CN106521372B (en) * | 2016-11-23 | 2018-05-04 | 洛阳万基铝加工有限公司 | A kind of finished product annealing process of double-zero aluminum foil |
| CN107012371B (en) * | 2017-04-26 | 2018-08-31 | 洛阳龙鼎铝业有限公司 | A kind of preparation method of architectural decoration aluminium strip |
| CN108118270B (en) * | 2017-12-07 | 2020-02-18 | 广西百色兴和铝业有限公司 | Preparation method of novel antibacterial edible aluminum foil |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429634A (en) * | 2008-12-12 | 2009-05-13 | 江苏常铝铝业股份有限公司 | Annealing method of cast-rolling aluminum foil used for air conditioner radiation fin |
Non-Patent Citations (2)
| Title |
|---|
| 5t铝箔退火炉炉温均匀性的改进;李朝迅等;《轻合金加工技术》;19970220(第02期);15-18 * |
| 小议双零铝箔的退火工艺改进及其轧制工艺控制;鄢如天;《今日科苑》;20070923(第18期);170 * |
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