CN115927919A - Household baked aluminum foil with bright double surfaces and manufacturing method thereof - Google Patents
Household baked aluminum foil with bright double surfaces and manufacturing method thereof Download PDFInfo
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- CN115927919A CN115927919A CN202211422565.XA CN202211422565A CN115927919A CN 115927919 A CN115927919 A CN 115927919A CN 202211422565 A CN202211422565 A CN 202211422565A CN 115927919 A CN115927919 A CN 115927919A
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- aluminum foil
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 47
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000011888 foil Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims abstract description 44
- 238000000137 annealing Methods 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 25
- 238000003723 Smelting Methods 0.000 claims abstract description 13
- 238000005097 cold rolling Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000009966 trimming Methods 0.000 claims abstract description 7
- 238000005266 casting Methods 0.000 claims abstract description 6
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000003205 fragrance Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention provides a household baked aluminum foil with bright double surfaces and a manufacturing method thereof. The composite material comprises the following components in percentage by mass: less than or equal to 0.15 percent of Si, 0.30 to 0.45 percent of Fe0.05 to 0.10 percent of Cu0.05 percent of Cu0.01 percent of Mn, less than or equal to 0.01 percent of Mg, less than or equal to 0.035 percent of Zn, less than or equal to 0.05 percent of Ti and the balance of Al. The process flow of the invention comprises the steps of smelting, casting and rolling, cold rolling and intermediate annealing, secondary cold rolling and trimming, rough rolling, finish cutting width, annealing, cutting length and the like, wherein the secondary annealing is arranged between the finish cutting width and the cutting length.
Description
Technical Field
The invention belongs to the technical field of aluminum foil processing, and relates to a household baked aluminum foil with bright double surfaces and a manufacturing method thereof.
Background
The aluminum foil is a soft metal film, has the advantages of moisture resistance, air tightness, shading, corrosion resistance, fragrance conservation, no toxicity, no odor and the like, has elegant silvery luster, and is mainly used for cooking in a kitchen and carrying food. People often use aluminum foil to wrap food materials in daily life, then place the aluminum foil in an oven or a baking oven, and as the packaged articles are sufficiently isolated from outside light, moisture, gas and the like, the temperature can be quickly raised, and the fragrance of the food materials can be kept. Most of the aluminum foil paper has one bright surface and the other gray surface. The aluminum foil for food can be wrapped with food on both sides, and usually it is recommended to wrap with bright surface to enhance the heat conduction effect.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a household baked aluminum foil with available double-sided brightness, which is available, free of front and back sides, strong in plasticity, more uniform in heating and high in heat conduction efficiency.
The purpose of the invention can be realized by the following technical scheme:
the invention provides a household baking aluminum foil with bright double surfaces, which is characterized in that: the composition and mass percentage are as follows: less than or equal to 0.15 percent of Si, 0.30 to 0.45 percent of Fe0.05 to 0.10 percent of Cu0.05 percent of Cu0.01 percent of Mn, less than or equal to 0.01 percent of Mg, less than or equal to 0.035 percent of Zn, less than or equal to 0.05 percent of Ti and the balance of Al.
The invention also provides a manufacturing method of the household baked aluminum foil with bright double surfaces, which comprises the following steps:
(1) Smelting: the raw materials are fully and uniformly stirred during smelting, the smelting temperature is 730-760 ℃, the converter-reversing temperature is 730-760 ℃, and the Fe/Si is required to be not less than 3;
(2) Casting and rolling: the temperature of a casting and rolling production front box is 695-705 ℃, and the thickness of a casting and rolling aluminum coil finished product is 6.8 +/-0.3 mm;
(3) Cold rolling and intermediate annealing: rough rolling the cast and rolled finished coil to 2.0-4.0 mm for intermediate annealing;
(4) Secondary cold rolling and trimming: after intermediate annealing, rolling to 0.4-0.6 mm for trimming, and after longitudinally shearing edges, continuously rolling to the thickness of 0.2-0.3 mm;
(5) Rough rolling: secondary cold rolling and edge cutting are carried out, and then rough rolling is carried out until the thickness is 0.02-0.04 mm;
(6) Finish rolling: performing finish rolling until the thickness of a finished product is 0.009-0.025 mm;
(7) Fine cutting width: finely cutting the edges of the two sides of the aluminum foil to the width of a finished product +/-0.5 mm, and rolling into a large roll;
(8) Annealing: and (4) feeding the mixture into an annealing furnace, raising the temperature of the annealing furnace to 260 ℃, preserving the heat for 72 hours, discharging the mixture out of the furnace, and standing the mixture to the normal temperature.
(9) Cutting length: cutting the raw materials into finished products according to the number of meters in the length direction, and winding the finished products into small rolls.
Furthermore, pure aluminum ingots (the aluminum content is more than or equal to 99.70 percent) are adopted for smelting in the step (1), and no waste materials are allowed to be added.
Further, in the step (1), refining is carried out for 6h +/-0.5 h/time by a holding furnace, and the hydrogen content of the melt is required to be less than or equal to 0.13ml/100g Al.
Furthermore, in the step (2), the temperature of the filter box is controlled to be 685-725 ℃, and plate type two-stage filtration is adopted, wherein the size of a first-stage filter plate is not less than 40 meshes, and the size of a second-stage filter plate is not less than 60 meshes.
Further, the mass flow is required to be started in the rolling process of the steps (3) and (4), the thickness difference of 0.2-0.3 mm is required to be less than or equal to +/-2%, and the good rate of the whole roll thickness difference is greater than or equal to 97%.
Further, in the step (3), the intermediate annealing process is carried out at a temperature of between 0.8 and 3.0 ℃/min, the temperature is raised to between 520 and 530 ℃, the heat preservation time is 180 to 300min, and the product is discharged and cooled.
Furthermore, a disc cutter driven by a motor is used for longitudinally cutting edges in the step (4), the cutting feed is controlled to be 60-70% of the thickness of the aluminum coil, and the side clearance is controlled to be 8-10% of the thickness of the aluminum coil.
Further, the roughness of the working roll during rough rolling in the step (5) is controlled to be Ra: 0.25-0.35 μm, and the convexity is controlled to be Cr: 0.04-0.05 mm.
Further, the roughness of the work roll in finish rolling in the step (6) is controlled to be Ra: 0.10-0.15 μm, and the convexity is controlled to be Cr: 0.04-0.06 mm.
Further, in the step (8), when the difference between the hearth temperature and the material temperature of the annealing furnace is less than or equal to 5 ℃, slowly raising the temperature to 60 ℃ at the speed of less than or equal to 6 ℃/h, and keeping the temperature for 2-3 h; then heating to 90 ℃ at a heating rate of less than or equal to 5 ℃/h, and preserving the heat for 2-3 h; then heating to 120 ℃ at a heating rate of less than or equal to 5 ℃/h, and preserving the heat for 2-3 h; then the temperature is increased to 260 ℃ at the speed of 8-10 ℃/h, and the temperature is kept for 72h.
Compared with the prior art, the technical scheme provided by the invention has the advantages that the tensile strength of the obtained double-sided bright and available household baked aluminum foil product is not less than 200MPa, the elongation is not less than 2%, the dyne value is not less than 30, the end face of the finished product is neat, the phenomena of obvious burrs, raised edges and wavy edges are avoided, the surface has no defects of adhesive roller marks, pittings, convex dents and bulging, no wrinkling and soft bars are generated, and the requirements of the household aluminum foil are met.
Detailed Description
The invention relates to a household baking aluminum foil with two bright surfaces, which comprises the following components in percentage by mass: less than or equal to 0.15 percent of Si, 0.30 to 0.45 percent of Fei, 0.05 to 0.10 percent of Cu0, less than or equal to 0.01 percent of Mn, less than or equal to 0.01 percent of Mg, less than or equal to 0.035 percent of Zn, less than or equal to 0.05 percent of Ti, and the balance of Al.
According to the component control, the final finished product of the household baked aluminum foil is further obtained, and the manufacturing method of the household baked aluminum foil with double-sided brightness and availability, provided by the invention, needs to be adopted, and comprises the following steps:
(1) Smelting: the raw materials are fully and uniformly stirred during smelting, the smelting temperature is 730-760 ℃, the converter-reversing temperature is 730-760 ℃, and the Fe/Si is required to be not less than 3;
(2) Casting and rolling: the temperature of a front box for cast-rolling production is 695 to 705 ℃, and the thickness of a cast-rolling aluminum coil finished product is 6.8 +/-0.3 mm;
(3) Cold rolling and intermediate annealing: rough rolling the cast and rolled finished coil to 2.0-4.0 mm for intermediate annealing;
(4) Secondary cold rolling and trimming: after intermediate annealing, rolling to 0.4-0.6 mm for trimming, and continuously rolling to the thickness of 0.2-0.3 mm after longitudinally shearing the edges;
(5) Rough rolling: secondary cold rolling and edge cutting are carried out, and then rough rolling is carried out until the thickness is 0.02-0.04 mm;
(6) Finish rolling: performing finish rolling until the thickness of a finished product is 0.009-0.025 mm;
(7) Fine cutting width: finely cutting the edges of the two sides of the aluminum foil to the width of a finished product +/-0.5 mm, and rolling into a large roll;
(8) Annealing: sending into an annealing furnace, keeping the temperature of the annealing furnace at 260 ℃ for 72 hours, discharging and standing to normal temperature.
(9) Cutting length: cutting the raw materials into finished products according to the number of meters in the length direction, and winding the finished products into small rolls.
Pure aluminum ingots (the aluminum content is more than or equal to 99.70 percent) are adopted for smelting in the step (1), and no waste materials are allowed to be added. Refining in a holding furnace for 6h +/-0.5 h/time, wherein the hydrogen content of the melt is required to be less than or equal to 0.13ml/100g Al.
In the step (2), the temperature of the filter box is controlled to be 685-725 ℃, plate type double-stage filtration is adopted, and the first-stage filter plate is not smaller than 40 meshes and the second-stage filter plate is not smaller than 60 meshes.
In the rolling processes of the steps (3) and (4), the mass flow is required to be started, the thickness difference of 0.2-0.3 mm is required to be less than or equal to +/-2%, and the good rate of the thickness difference of the whole coil is greater than or equal to 97%.
In the step (3), the intermediate annealing process is carried out at the temperature of between 0.8 and 3.0 ℃/min and the temperature is raised to between 520 and 530 ℃, the heat preservation time is between 180 and 300min, and the product is discharged and cooled.
In the step (4), a disc cutter driven by a motor is adopted for longitudinally cutting edges, the cutting feed amount is controlled to be 60-70% of the thickness of the aluminum coil, and the side clearance is controlled to be 8-10% of the thickness of the aluminum coil.
And (5) controlling the roughness of the working roll in rough rolling to Ra: 0.25-0.35 μm, and the convexity is controlled to be Cr: 0.04-0.05 mm.
And (6) controlling the roughness of the working roll in the finish rolling in the step (6) to be Ra: 0.10-0.15 μm, and the convexity is controlled to be Cr: 0.04-0.06 mm.
In the step (8), when the difference between the hearth temperature and the material temperature of the annealing furnace is less than or equal to 5 ℃, slowly raising the temperature to 60 ℃ at the speed of less than or equal to 6 ℃/h, and preserving the temperature for 2-3 h; then heating to 90 ℃ at a heating rate of less than or equal to 5 ℃/h, and preserving the heat for 2-3 h; then heating to 120 ℃ at a heating rate of less than or equal to 5 ℃/h, and preserving the heat for 2-3 h; then the temperature is increased to 260 ℃ at the speed of 8-10 ℃/h, and the temperature is kept for 72h.
Claims (10)
1. A double-sided bright usable household baking aluminum foil is characterized in that: the composite material comprises the following components in percentage by mass: less than or equal to 0.15 percent of Si, 0.30 to 0.45 percent of Fe0.05 to 0.10 percent of Cu0.05 percent of Cu0.01 percent of Mn, less than or equal to 0.01 percent of Mg, less than or equal to 0.035 percent of Zn, less than or equal to 0.05 percent of Ti and the balance of Al.
2. A manufacturing method of a household baked aluminum foil with bright two sides and usable performance is characterized by comprising the following steps:
(1) Smelting: the raw materials are fully and uniformly stirred during smelting, the smelting temperature is 730-760 ℃, the converter-reversing temperature is 730-760 ℃, and the Fe/Si is required to be not less than 3;
(2) Casting and rolling: the temperature of a front box for cast-rolling production is 695 to 705 ℃, and the thickness of a cast-rolling aluminum coil finished product is 6.8 +/-0.3 mm;
(3) Cold rolling and intermediate annealing: rough rolling the cast and rolled finished coil to 2.0-4.0 mm for intermediate annealing;
(4) Secondary cold rolling and trimming: after intermediate annealing, rolling to 0.4-0.6 mm for trimming, and after longitudinally shearing edges, continuously rolling to the thickness of 0.2-0.3 mm;
(5) Rough rolling: secondary cold rolling and edge cutting are carried out, and then rough rolling is carried out until the thickness is 0.02-0.04 mm;
(6) Finish rolling: performing finish rolling until the thickness of a finished product is 0.009-0.025 mm;
(7) Fine cutting width: finely cutting the edges of the two sides of the aluminum foil to the width of a finished product +/-0.5 mm, and rolling into a large roll;
(8) Annealing: and (4) feeding the mixture into an annealing furnace, keeping the temperature of the annealing furnace at 260 ℃ for 72 hours, discharging the mixture out of the furnace and standing the mixture to normal temperature.
(9) Cutting length: cutting the raw materials into finished products according to the number of meters in the length direction, and winding the finished products into small rolls.
3. The method for manufacturing a double-sided bright and usable household baked aluminum foil according to claim 2, wherein pure aluminum ingots (aluminum content is more than or equal to 99.70%) are used for smelting in the step (1), no waste materials are allowed to be added, and the step (1) is carried out for refining in a heat-preserving furnace for 6h +/-0.5 h/time, and the hydrogen content of the melt is required to be less than or equal to 0.13 ml/100g.
4. The method for manufacturing a double-sided bright and usable home baking aluminum foil according to claim 2, wherein the temperature of the filter box in the step (2) is controlled to 685-725 ℃, and plate type double stage filtration is adopted, wherein the first stage filtration plate is not smaller than 40 meshes, and the second stage filtration plate is not smaller than 60 meshes.
5. The method for manufacturing a household baked aluminum foil with bright double surfaces as claimed in claim 2, wherein the rolling process of steps (3) and (4) requires opening of mass flow, the thickness difference of 0.2-0.3 mm is not more than ± 2%, and the complete thickness difference of the whole coil is not less than 97%.
6. The method for manufacturing a household baked aluminum foil with bright double surfaces as claimed in claim 2, wherein the intermediate annealing process in step (3) is performed at 0.8 ℃/min to 3.0 ℃/min, the temperature is raised to 520 ℃ to 530 ℃, the holding time is 180 to 300min, and the aluminum foil is taken out of the furnace and cooled.
7. The method for manufacturing a double-sided bright home aluminum foil for baking as claimed in claim 2, wherein the cutting edge is longitudinally sheared using a circular cutter with a motor drive in the step (4), the cutting feed amount is controlled to be 60 to 70% of the thickness of the aluminum coil, and the side gap is controlled to be 8 to 10% of the thickness of the aluminum coil.
8. The method for manufacturing a double-sided bright workable home use baked aluminum foil as set forth in claim 2, wherein the roughness of the work rolls in rough rolling in the step (5) is controlled to be Ra: 0.25-0.35 μm, and the convexity is controlled to be Cr: 0.04-0.05 mm.
9. The method for manufacturing a double-sided bright home-use baked aluminum foil as claimed in claim 2, wherein the roughness of the work rolls in finish rolling in step (6) is controlled to be Ra: 0.10-0.15 μm, and the convexity is controlled to be Cr: 0.04-0.06 mm.
10. The manufacturing method of household baked aluminum foil with bright double sides available according to claim 2, characterized in that in step (8), when the difference between the furnace temperature of the annealing furnace and the material temperature is less than or equal to 5 ℃, the temperature is slowly raised to 60 ℃ at the speed of less than or equal to 6 ℃/h, and the temperature is kept for 2-3 h; then heating to 90 ℃ at a heating rate of less than or equal to 5 ℃/h, and preserving the heat for 2-3 h; then heating to 120 ℃ at a heating rate of less than or equal to 5 ℃/h, and preserving the heat for 2-3 h; then the temperature is increased to 260 ℃ at the speed of 8-10 ℃/h, and the temperature is kept for 72h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211422565.XA CN115927919A (en) | 2022-11-14 | 2022-11-14 | Household baked aluminum foil with bright double surfaces and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211422565.XA CN115927919A (en) | 2022-11-14 | 2022-11-14 | Household baked aluminum foil with bright double surfaces and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN115927919A true CN115927919A (en) | 2023-04-07 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844152A (en) * | 2010-03-29 | 2010-09-29 | 华北铝业有限公司 | Production process of ultrathin double-face optical aluminum foil |
| CN109811283A (en) * | 2019-03-27 | 2019-05-28 | 江苏大亚铝业有限公司 | The annealing process of double-zero aluminum foil prevention surface hot drum |
| CN114345936A (en) * | 2021-12-23 | 2022-04-15 | 江苏鼎胜新能源材料股份有限公司 | Production process of high-toughness medicinal high-ductility aluminum foil |
| CN114525432A (en) * | 2022-01-08 | 2022-05-24 | 浙江佑丰新材料股份有限公司 | High-strength and high-extension aluminum foil for new energy battery and manufacturing method thereof |
-
2022
- 2022-11-14 CN CN202211422565.XA patent/CN115927919A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844152A (en) * | 2010-03-29 | 2010-09-29 | 华北铝业有限公司 | Production process of ultrathin double-face optical aluminum foil |
| CN109811283A (en) * | 2019-03-27 | 2019-05-28 | 江苏大亚铝业有限公司 | The annealing process of double-zero aluminum foil prevention surface hot drum |
| CN114345936A (en) * | 2021-12-23 | 2022-04-15 | 江苏鼎胜新能源材料股份有限公司 | Production process of high-toughness medicinal high-ductility aluminum foil |
| CN114525432A (en) * | 2022-01-08 | 2022-05-24 | 浙江佑丰新材料股份有限公司 | High-strength and high-extension aluminum foil for new energy battery and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 谢水生、刘静安等: "《简明铝合金加工手册》", 31 December 2012, 冶金工业出版社, pages: 606 - 608 * |
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