CN109161736A - A kind of casting-rolling aluminum alloy and its method for manufacturing double-zero aluminum foil - Google Patents
A kind of casting-rolling aluminum alloy and its method for manufacturing double-zero aluminum foil Download PDFInfo
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- CN109161736A CN109161736A CN201811397853.8A CN201811397853A CN109161736A CN 109161736 A CN109161736 A CN 109161736A CN 201811397853 A CN201811397853 A CN 201811397853A CN 109161736 A CN109161736 A CN 109161736A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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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
- 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
- C22F1/043—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 of alloys with silicon as the next major constituent
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Abstract
The invention discloses a kind of casting-rolling aluminum alloy and its methods for manufacturing double-zero aluminum foil, the ingredient and its weight percent of aluminum alloy materials are as follows: Fe 0.5-0.7%, Si 0.3-0.6%, Mn 0.05-0.1%, Cu≤0.1%, Mg≤0.05%, Zn≤0.1%, Ti 0.035-0.05%, surplus Al, wherein, Fe/Si≤1.5, merely through primary annealing before mill product thickness: anneal 8-9h at 500-530 DEG C, the double annealing of double-zero aluminum foil annealing process is prepared with the primary traditional casting and roll process of annealing substitution, greatly shorten the production cycle, add the Mn of 0.05-0.1wt%, Mn is all dissolved into aluminium alloy melt, the elongation percentage of aluminium alloy is improved while solution strengthening.
Description
Technical field
The present invention relates to the sides of double-zero aluminum foil technical field more particularly to a kind of casting-rolling aluminum alloy and its manufacture double-zero aluminum foil
Method.
Background technique
Double-zero aluminum foil refers to that thickness is less than the aluminium foil of 0.01mm, due to its cleaning, good airproof performance, can be recycled, recyclable benefit
With the features such as, be widely applied in fields such as food, beverage, dairy produce, medicine, daily use chemicals, electronic products, casting and roll process production at present is double
Zero aluminium foil needs to carry out when being rolled down to double-zero aluminum foil finished product the twice annealing of high annealing and intermediate annealing, due to annealing time
Heating-up time it is long, soak is long, and the time for being cooled to room temperature is longer, usually since delivery date is tightly needless to say cooled in production
The problem of room temperature just rolls, and aluminium is caused to roll up roll banding appearance.The prior art gropes annealing schedule, and problems faced is annealing time
Long, tensile strength is excessively high after finished products, and elongation percentage is low, be unfavorable for later period double-zero aluminum foil and other materials, as paper, plastics are answered
It closes.
Summary of the invention
The technical problem to be solved by the present invention is the present invention provides a kind of casting-rolling aluminum alloy and its manufactures the side of double-zero aluminum foil
Method, long to solve prior art annealing time, tensile strength is excessively high after finished products, and elongation percentage is low, is unfavorable for later period double zero aluminium
Foil and other materials, such as the compound problem of paper, plastics.
The technical scheme is that a kind of casting-rolling aluminum alloy and its method for manufacturing double-zero aluminum foil, comprising the following steps:
Step 1: the ingredient and its weight percent according to the aluminum alloy materials carry out mixing, melting, melt is obtained；
Step 2: the melt in step 1 is carried out casting, it is rolled into the thick strip with a thickness of 7.0 ± 0.2mm；
Cold rolling is carried out when Step 3: the thick strip in step 2 being cooled to≤60 DEG C, is rolled into the middle plate of 3.5-4.2mm
Band；
Step 4: the tabularium in step 3 is annealed 8-9h at 500-530 DEG C, it then is cooled to room temperature；
Step 5: tabularium obtained in step 4 to be carried out to single zero aluminium foil of secondary cold-rolling to 0.014-0.018mm, roll
Drafts processed is 45-55%；
Step 6: aluminum foil doubled by step 5 single zero, i.e., two layers single zero aluminium foil overlaps, and the aluminium foil after overlapping continues cold
It rolling, roll reduction 45-55% obtains the double-zero aluminum foil of hard state, and with a thickness of 0.006-0.009mm, aluminium foil is bilayer at this time,
Then it is divided into single layer using cutting machine, and width is cut to the specification of needs；
Step 7: the double-zero aluminum foil finished product after the cutting in step 6 is annealed, annealing temperature is 220-240 DEG C；
Wherein, the ingredient and its weight percent of the aluminum alloy materials are as follows: Fe 0.5-0.7%, Si 0.3-0.6%,
Mn 0.05-0.1%, Cu≤0.1%, Mg≤0.05%, Zn≤0.1%, Ti 0.035-0.05%, surplus Al, wherein Fe/
Si≤1.5。
The maxima solubility of manganese in the melt is 1.82%.Alloy strength is continuously increased with solubility increase, and manganese content is
When 0.8%, elongation percentage reaches maximum value, and manganese of the invention is all dissolved into solution strengthening is carried out in melt, i.e. raising aluminium alloy is strong
Elongation percentage is also improved while spending, manganese can prevent the recrystallization process of aluminium alloy, improve recrystallization temperature, and can significantly refine
Recrystal grain.The refinement of recrystal grain, mainly passes through MnAl6Compound disperses particle has grown up resistance to recrystal grain
Hinder effect.The twice annealing of traditional double-zero aluminum foil annealing process high temperature annealing and intermediate annealing, intermediate annealing therein are also named
Recrystallization annealing, annealing temperature are 350-500 DEG C, and the addition of Mn improves the recrystallization annealing temperature of aluminium alloy, so that aluminium alloy
Recrystallization process is completed during primary annealing；MnAl6Another effect be can dissolved impurity iron, reduce impurity iron to double
Zero aluminium foil causes formation of crack, in turn results in the risk of the disconnected band of aluminium foil in the operation of rolling.
Preferably, the drafts in step 5 is 45-50%；Roll reduction should not be too large, to guarantee the operation of rolling
Stability.
Preferably, the drafts in step 6 is 45-50%, and roll reduction should not be too large, to guarantee the operation of rolling
Stability.
The beneficial effects of the present invention are: implementation through the invention, replaces traditional casting and roll process preparation double zero with primary annealing
The double annealing of annealing process for aluminum foil, greatly shortens the production cycle, adds the Mn of 0.05-0.1wt%, and Mn is all dissolved into
In aluminium alloy melt, solution strengthening while, improves the elongation percentage of aluminium alloy.
Specific embodiment
The present invention is described further below with reference to specific embodiment:
Embodiment 1:
A kind of casting-rolling aluminum alloy and its method for manufacturing double-zero aluminum foil, comprising the following steps:
Step 1: the ingredient and its weight percent according to the aluminum alloy materials carry out mixing, melting, melt is obtained；
Step 2: the melt in step 1 is carried out casting, it is rolled into the thick strip with a thickness of 7.0 ± 0.2mm；
Cold rolling is carried out when Step 3: the thick strip in step 2 being cooled to≤60 DEG C, is rolled into the tabularium of 4.0mm；
Step 4: the tabularium in step 3 is annealed 8h at 530 DEG C, it then is cooled to room temperature；
Step 5: tabularium obtained in step 4 to be carried out to single zero aluminium foil of secondary cold-rolling to 0.016mm, rolling distribution
Are as follows:
4.0mm-2.0mm-1.1mm-0.55mm-0.28mm-0.14mm-0.06mm-0.03mm-0.0 16mm, rolling pressure
Amount is [(upper one rolling thickness-downstream roll thickness)/upper rolling thickness] * 100%, roll reduction 45-55%；
Step 6: aluminum foil doubled by step 5 single zero, i.e., two layers single zero aluminium foil overlaps, and the aluminium foil after overlapping continues cold
It rolls, roll reduction 50% obtains the double-zero aluminum foil of hard state, and with a thickness of 0.008mm, aluminium foil is bilayer at this time, then uses
Cutting machine is divided into single layer, and width is cut to the specification of needs；
Step 7: the double-zero aluminum foil finished product after the cutting in step 6 is annealed, annealing temperature is 240 DEG C；Annealing time
According to after cutting double-zero aluminum foil width and coil diameter depending on, to guarantee the oil removing performance of double-zero aluminum foil and opening a book performance, double zero aluminium
Foil width is wider, coil diameter is bigger, and the finished products time is longer, and in order to avoid aluminium curly hair is viscous, the finished products time is also unsuitable too long.
Wherein, the ingredient and its weight percent of the aluminum alloy materials are as follows: Fe 0.7%, Si 0.6%, Mn0.05%,
Cu≤0.1%, Mg≤0.05%, Zn≤0.1%, Ti 0.04%, surplus Al.
After finished products, the mechanical property of double-zero aluminum foil is 91MPa, and elongation percentage 2.6%, adhesion property and brush water remove oiliness
It can be qualified.
Embodiment 2:
A kind of casting-rolling aluminum alloy and its method for manufacturing double-zero aluminum foil, comprising the following steps:
Step 1: the ingredient and its weight percent according to the aluminum alloy materials carry out mixing, melting, melt is obtained；
Step 2: the melt in step 1 is carried out casting, it is rolled into the thick strip with a thickness of 7.0 ± 0.2mm；
Cold rolling is carried out when Step 3: the thick strip in step 2 being cooled to≤60 DEG C, is rolled into the tabularium of 3.8mm；
Step 4: the tabularium in step 3 is annealed 9h at 500 DEG C, it then is cooled to room temperature；
Step 5: tabularium obtained in step 4 to be carried out to single zero aluminium foil of secondary cold-rolling to 0.018mm, rolling distribution
Are as follows:
3.8mm-2.0mm-1.1mm-0.55mm-0.28mm-0.14mm-0.06mm-0.034mm-0. 018mm, rolling pressure
Lower amount is [(upper one rolling thickness-downstream roll thickness)/upper rolling thickness] * 100%, roll reduction 45-55%；
Step 6: aluminum foil doubled by step 5 single zero, i.e., two layers single zero aluminium foil overlaps, and the aluminium foil after overlapping continues cold
It rolls, roll reduction 50% obtains the double-zero aluminum foil of hard state, and with a thickness of 0.009mm, aluminium foil is bilayer at this time, then uses
Cutting machine is divided into single layer, and width is cut to the specification of needs；
Step 7: the double-zero aluminum foil finished product after the cutting in step 6 is annealed, annealing temperature is 230 DEG C；
Wherein, the ingredient and its weight percent of the aluminum alloy materials are as follows: Fe 0.6%, Si 0.55%,
Mn0.08%, Cu≤0.1%, Mg≤0.05%, Zn≤0.1%, Ti 0.035%, surplus Al.
After finished products, the mechanical property of double-zero aluminum foil is 89MPa, and elongation percentage 2.8%, adhesion property and brush water remove oiliness
It can be qualified.
Embodiment 3:
A kind of casting-rolling aluminum alloy and its method for manufacturing double-zero aluminum foil, comprising the following steps:
Step 1: the ingredient and its weight percent according to the aluminum alloy materials carry out mixing, melting, melt is obtained；
Step 2: the melt in step 1 is carried out casting, it is rolled into the thick strip with a thickness of 7.0 ± 0.2mm；
Cold rolling is carried out when Step 3: the thick strip in step 2 being cooled to≤60 DEG C, is rolled into the tabularium of 4.2mm；
Step 4: the tabularium in step 3 is annealed 8h at 530 DEG C, it then is cooled to room temperature；
Step 5: tabularium obtained in step 4 to be carried out to single zero aluminium foil of secondary cold-rolling to 0.016mm, rolling distribution
Are as follows:
4.2mm-2.1mm-1.1mm-0.55mm-0.26mm-0.12mm-0.055mm-0.026mm-0 .012mm, rolling pressure
Lower amount is [(upper one rolling thickness-downstream roll thickness)/upper rolling thickness] * 100%, roll reduction 45-55%；
Step 6: aluminum foil doubled by step 5 single zero, i.e., two layers single zero aluminium foil overlaps, and the aluminium foil after overlapping continues cold
It rolls, roll reduction 50% obtains the double-zero aluminum foil of hard state, and with a thickness of 0.006mm, aluminium foil is bilayer at this time, then uses
Cutting machine is divided into single layer, and width is cut to the specification of needs；
Step 7: the double-zero aluminum foil finished product after the cutting in step 6 is annealed, annealing temperature is 220 DEG C；Annealing time
According to after cutting double-zero aluminum foil width and coil diameter depending on, to guarantee the oil removing performance of double-zero aluminum foil and opening a book performance, double zero aluminium
Foil width is wider, coil diameter is bigger, and the finished products time is longer, and in order to avoid aluminium curly hair is viscous, the finished products time is also unsuitable too long.
Wherein, the ingredient and its weight percent of the aluminum alloy materials are as follows: Fe 0.5%, Si 0.35%, Mn0.1%,
Cu≤0.1%, Mg≤0.05%, Zn≤0.1%, Ti 0.05%, surplus Al.
After finished products, the mechanical property of double-zero aluminum foil is 86MPa, and elongation percentage 3.0%, adhesion property and brush water remove oiliness
It can be qualified.
Claims (3)
1. a kind of casting-rolling aluminum alloy and its method for manufacturing double-zero aluminum foil, which comprises the following steps:
Step 1: the ingredient and its weight percent according to the aluminum alloy materials carry out mixing, melting, melt is obtained；
Step 2: the melt in step 1 is carried out casting, it is rolled into the thick strip with a thickness of 7.0 ± 0.2mm；
Cold rolling is carried out when Step 3: the thick strip in step 2 being cooled to≤60 DEG C, is rolled into the tabularium of 3.5-4.2mm；
Step 4: the tabularium in step 3 is annealed 8-9h at 500-530 DEG C, it then is cooled to room temperature；
Step 5: tabularium obtained in step 4 to be carried out to single zero aluminium foil of secondary cold-rolling to 0.014-0.018mm, rolling pressure
Lower amount is 45-55%；
Step 6: aluminum foil doubled by step 5 single zero, i.e., two layers single zero aluminium foil overlaps, and the aluminium foil after overlapping continues cold rolling, rolls
Drafts processed is 45-55%, obtains the double-zero aluminum foil of hard state, and with a thickness of 0.006-0.009mm, aluminium foil is bilayer at this time, then
It is divided into single layer using cutting machine, and width is cut to the specification of needs；
Step 7: the double-zero aluminum foil finished product after the cutting in step 6 is annealed, annealing temperature is 220-240 DEG C；
Wherein, the ingredient and its weight percent of the aluminum alloy materials are as follows: Fe 0.5-0.7%, Si 0.3-0.6%, Mn
0.05-0.1%, Cu≤0.1%, Mg≤0.05%, Zn≤0.1%, Ti 0.035-0.05%, surplus Al, wherein Fe/Si≤
1.5。
2. a kind of casting-rolling aluminum alloy according to claim 1 and its method for manufacturing double-zero aluminum foil, it is characterised in that: step
Drafts in five is 45-50%.
3. a kind of casting-rolling aluminum alloy according to claim 1 and its method for manufacturing double-zero aluminum foil, it is characterised in that: step
Drafts in six is 45-50%.
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| CN201811397853.8A CN109161736A (en) | 2018-11-22 | 2018-11-22 | A kind of casting-rolling aluminum alloy and its method for manufacturing double-zero aluminum foil |
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| CN201811397853.8A CN109161736A (en) | 2018-11-22 | 2018-11-22 | A kind of casting-rolling aluminum alloy and its method for manufacturing double-zero aluminum foil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254322A (en) * | 2020-03-25 | 2020-06-09 | 江苏鼎胜新能源材料股份有限公司 | Preparation method of aluminum foil material for thinning double-sided photocell tab |
| CN112143942A (en) * | 2020-09-30 | 2020-12-29 | 江苏鼎胜新能源材料股份有限公司 | Aluminum foil for aluminum candle box and manufacturing method thereof |
| CN114411017A (en) * | 2022-01-24 | 2022-04-29 | 华北铝业新材料科技有限公司 | Aluminum foil for 1200 lithium battery and preparation method thereof |
| CN114540726A (en) * | 2022-01-27 | 2022-05-27 | 晟通科技集团有限公司 | Preparation process of aluminum-titanium foil and aluminum-titanium foil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111254322A (en) * | 2020-03-25 | 2020-06-09 | 江苏鼎胜新能源材料股份有限公司 | Preparation method of aluminum foil material for thinning double-sided photocell tab |
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| CN114411017A (en) * | 2022-01-24 | 2022-04-29 | 华北铝业新材料科技有限公司 | Aluminum foil for 1200 lithium battery and preparation method thereof |
| CN114540726A (en) * | 2022-01-27 | 2022-05-27 | 晟通科技集团有限公司 | Preparation process of aluminum-titanium foil and aluminum-titanium foil |
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