CN106119615A - A kind of new energy resource power battery shell aluminium alloy strips and preparation method thereof - Google Patents
A kind of new energy resource power battery shell aluminium alloy strips and preparation method thereof Download PDFInfo
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- CN106119615A CN106119615A CN201610678023.7A CN201610678023A CN106119615A CN 106119615 A CN106119615 A CN 106119615A CN 201610678023 A CN201610678023 A CN 201610678023A CN 106119615 A CN106119615 A CN 106119615A
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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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Abstract
The invention belongs to the preparation field of aluminium alloy strips, be specifically related to a kind of new energy resource power battery shell aluminium alloy strips and preparation method thereof.The constituent of this aluminium alloy strips is: Si 0.1 ~ 0.4wt%, Fe 0.4 ~ 0.7wt%, Cu 0.06 ~ 0.14wt%, Mn 1.0 ~ 1.2wt%, Mg ＜ 0.05wt%, Ti 0.01 ~ 0.03wt%, surplus is Al.The present invention carries out optimizing components to aluminium alloy strips on the basis of 3003 alloys, and by homogenization heat treatment, hot rolling technology, annealing process and the reasonable distribution of cold-rolling process, make this aluminium alloy strips can meet good deep drawability, good laser welding can be realized again, the preparation method being a kind of not only economy but also easily promoting with cover plate.
Description
Technical field
The invention belongs to the preparation field of aluminium alloy strips, be specifically related to a kind of new energy resource power battery shell aluminum alloy strip
Material and preparation method thereof.
Background technology
The punching process deflection of new energy resource power battery shell is big, punching passage is many, production process is complicated, comprehensive to material
Particularly deep drawability, laser weldability can propose very high request, not require nothing more than material and there is little thickness deviation, good
Surface quality, also need to have simultaneously the low and excellent laser weldability of good plasticity, little yield tensile ratio, earing rate with
Ensure the safety during battery is under arms.At present this material also cannot fully meet product requirement, exist deep drawability poor,
The defects such as earing rate is high, laser weldability difference.
The present invention carries out optimizing components on the basis of 3003 alloys, and by homogenization heat treatment, hot rolling technology, annealing
Technique and the reasonable distribution of cold-rolling process so that this aluminium alloy strips can meet good deep drawability, again can be real with cover plate
The best laser welding, the preparation method being a kind of not only economy but also easily promoting.
Summary of the invention
Present invention aims to the deficiencies in the prior art, it is provided that a kind of new energy resource power battery shell aluminum alloy strip
Material and preparation method thereof.Aluminium alloy strips obtained by the present invention can meet good deep drawability, can realize with cover plate again
Good laser welding, the preparation method being a kind of not only economy but also easily promoting.
For realizing the purpose of the present invention, adopt the following technical scheme that
A kind of new energy resource power battery shell aluminium alloy strips, its constituent is: Si 0.1 ~ 0.4wt%, Fe 0.4 ~
0.7wt%, Cu 0.06 ~ 0.14wt%, Mn 1.0 ~ 1.2wt%, Mg ＜ 0.05wt%, Ti 0.01 ~ 0.03wt%, surplus is Al.
A kind of method preparing new energy resource power battery shell aluminium alloy strips as above, concretely comprises the following steps:
(1) pressing the composition of aluminium alloy strips, degasification is later half is continuously cast into for aluminium alloy stock is smelting, refine, online slagging-off
Aluminium alloy flat bloom；
(2) slab ingot is behind sawing, milling face, is heated to 580 ~ 600 DEG C and is incubated 4 ~ 10 hours, carrying out homogenization heat treatment；
(3) then come out of the stove hot rolling, hot rolled thickness 2.0 ~ 8.0mm, hot rolling finishing temperature 280 ~ 360 DEG C；
(4) hot rolled plate is rolled to certain thickness on cold-rolling mill, the finished product cold processing ratio of reserved 15% ~ 40%；
(5) cold-strip being placed on annealing furnace and carries out intermediate annealing, annealing temperature 360 ~ 400 DEG C, temperature retention time is according to volume weight
Fixed；
(6) continue at cold rolling mill to finished product thickness；
(7) material that will process through step (6) is cleaned, aligning, trimming, make electrokinetic cell shell aluminium alloy strips.
The present invention has the advantage that compared with the prior art
1) tensile strength of the aluminium alloy strips obtained by the present invention reaches 120 ~ 170MPa, and yield strength reaches 110 ~
160MPa, earing rate ＜ 4%；Good deep drawability can be met, good laser welding can be realized with cover plate again；
2) present invention band to aluminium alloy on the basis of 3003 alloys carries out optimizing components, and by homogenization heat treatment,
The reasonable distribution of hot rolling technology, annealing process and cold-rolling process, greatly improves the performance of aluminium alloy strips so that it is be suitable for
New energy resource power battery shell, the preparation method being a kind of not only economy but also easily promoting.
Detailed description of the invention
For the openest rather than restriction present invention, below in conjunction with example, the present invention is described in further detail.
Embodiment 1
A kind of new energy resource power battery shell aluminium alloy strips, its constituent is: Si 0.1wt%, Fe 0.7wt%, Cu
0.06wt%, Mn 1.2wt%, Mg 0.04wt%, Ti 0.01wt%, surplus is Al.
A kind of method preparing new energy resource power battery shell aluminium alloy strips as above, concretely comprises the following steps:
(1) pressing the composition of aluminium alloy strips, degasification is later half is continuously cast into for aluminium alloy stock is smelting, refine, online slagging-off
Aluminium alloy flat bloom；
(2) slab ingot is behind sawing, milling face, is heated to 580 DEG C and is incubated 10 hours, carries out homogenization heat treatment；
(3) then come out of the stove hot rolling, hot rolled thickness 2.0mm, hot rolling finishing temperature 360 DEG C；
(4) hot rolled plate is rolled to certain thickness on cold-rolling mill, the finished product cold processing ratio of reserved 15%；
(5) cold-strip being placed on annealing furnace and carries out intermediate annealing, annealing temperature 360 DEG C, depending on temperature retention time is according to volume weight；
(6) continue at cold rolling mill to finished product thickness；
(7) material that will process through step (6) is cleaned, aligning, trimming, make electrokinetic cell shell aluminium alloy strips.
The tensile strength of aluminium alloy strips prepared through the method is 135MPa, and yield strength reaches 125MPa, earing rate
It is 2.5%.
Embodiment 2
A kind of new energy resource power battery shell aluminium alloy strips, its constituent is: Si 0.4wt%, Fe 0.4wt%, Cu
0.14wt%, Mn 1.0wt%, Mg 0.03wt%, Ti 0.03wt%, surplus is Al.
A kind of method preparing new energy resource power battery shell aluminium alloy strips as above, concretely comprises the following steps:
(1) pressing the composition of aluminium alloy strips, degasification is later half is continuously cast into for aluminium alloy stock is smelting, refine, online slagging-off
Slab ingot；
(2) slab ingot is behind sawing, milling face, is heated to 600 DEG C and is incubated 4 hours, carries out homogenization heat treatment；
(3) then come out of the stove hot rolling, hot rolled thickness 8.0mm, hot rolling finishing temperature 280 DEG C；
(4) hot rolled plate is rolled to certain thickness on cold-rolling mill, the finished product cold processing ratio of reserved 25%；
(5) cold-strip being placed on annealing furnace and carries out intermediate annealing, annealing temperature 380 DEG C, depending on temperature retention time is according to volume weight；
(6) continue at cold rolling mill to finished product thickness；
(7) material that will process through step (6) is cleaned, aligning, trimming, make electrokinetic cell shell aluminium alloy strips.
The tensile strength of aluminium alloy strips prepared through the method is 135MPa, and yield strength reaches 128MPa, earing rate
It is 2.0%.
Embodiment 3
A kind of new energy resource power battery shell aluminium alloy strips, its constituent is: Si 0.2wt%, Fe 0.6wt%, Cu
0.08wt%, Mn 1.1wt%, Mg 0.02wt%, Ti 0.02wt%, surplus is Al.
A kind of method preparing new energy resource power battery shell aluminium alloy strips as above, concretely comprises the following steps:
(1) pressing the composition of aluminium alloy strips, degasification is later half is continuously cast into for aluminium alloy stock is smelting, refine, online slagging-off
Aluminium alloy flat bloom；
(2) slab ingot is behind sawing, milling face, is incubated 8 hours at 590 DEG C, carries out homogenization heat treatment；
(3) then come out of the stove hot rolling, hot rolled thickness 5.0mm, hot rolling finishing temperature 320 DEG C；
(4) hot rolled plate is rolled to certain thickness on cold-rolling mill, the finished product cold processing ratio of reserved 40%；
(5) cold-strip being placed on annealing furnace and carries out intermediate annealing, annealing temperature 400 DEG C, depending on temperature retention time is according to volume weight；
(6) continue at cold rolling mill to finished product thickness；
(7) material that will process through step (6) is cleaned, aligning, trimming, make electrokinetic cell shell aluminium alloy strips.
The tensile strength of aluminium alloy strips prepared through the method is 160MPa, and yield strength reaches 140MPa, earing rate
It is 1.5%.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modify, all should belong to the covering scope of the present invention.
Claims (2)
1. a new energy resource power battery shell aluminium alloy strips, it is characterised in that: its constituent is: Si 0.1 ~ 0.4wt%,
Fe 0.4 ~ 0.7wt%, Cu 0.06 ~ 0.14wt%, Mn 1.0 ~ 1.2wt%, Mg ＜ 0.05wt%, Ti 0.01 ~ 0.03wt%, surplus
For Al.
2. the method preparing new energy resource power battery shell aluminium alloy strips as claimed in claim 1, it is characterised in that:
Concretely comprise the following steps:
(1) pressing the composition of aluminium alloy strips, degasification is later half is continuously cast into for aluminium alloy stock is smelting, refine, online slagging-off
Aluminium alloy flat bloom；
(2) slab ingot is behind sawing, milling face, is heated to 580 ~ 600 DEG C and is incubated 4 ~ 10 hours, carrying out homogenization heat treatment；
(3) then come out of the stove hot rolling, hot rolled thickness 2.0 ~ 8.0mm, hot rolling finishing temperature 280 ~ 360 DEG C；
(4) hot rolled plate is rolled to certain thickness on cold-rolling mill, the finished product cold processing ratio of reserved 15% ~ 40%；
(5) cold-strip being placed on annealing furnace and carries out intermediate annealing, annealing temperature 360 ~ 400 DEG C, temperature retention time is according to volume weight
Fixed；
(6) continue at cold rolling mill to finished product thickness；
(7) material that will process through step (6) is cleaned, aligning, trimming, make electrokinetic cell shell aluminium alloy strips.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106591645A (en) * | 2016-11-30 | 2017-04-26 | 中铝瑞闽股份有限公司 | Aluminum alloy strip for food packaging special-shaped can and preparation method of aluminum alloy strip |
| CN106636775A (en) * | 2016-12-20 | 2017-05-10 | 中铝瑞闽股份有限公司 | Aluminum alloy strip used for powder battery shell and preparation method of aluminum alloy strip |
| CN106893906A (en) * | 2017-01-20 | 2017-06-27 | 中铝瑞闽股份有限公司 | A kind of 202 type easy open cover aluminium alloy strips and preparation method thereof |
| CN107130146A (en) * | 2017-06-07 | 2017-09-05 | 中铝瑞闽股份有限公司 | A kind of capacitor case aluminium alloy strips and preparation method thereof |
| CN107604212A (en) * | 2017-09-12 | 2018-01-19 | 中铝瑞闽股份有限公司 | Integrated battery cover board aluminium alloy strips and preparation method thereof |
| CN107739924A (en) * | 2017-11-14 | 2018-02-27 | 中铝东南材料院（福建）科技有限公司 | A kind of new-energy automobile vacuum booster shell aluminium alloy strips and preparation method |
| CN108559878A (en) * | 2018-03-08 | 2018-09-21 | 常州常发制冷科技有限公司 | Battery case aluminum alloy strip and preparation method thereof |
| CN110453110A (en) * | 2019-09-03 | 2019-11-15 | 南通恒金复合材料有限公司 | A kind of housing of power cell aluminium alloy strips and preparation method thereof |
| CN111041283A (en) * | 2019-12-19 | 2020-04-21 | 广西南南铝加工有限公司 | Production method of 3003 aluminum alloy wafer for deep-drawing expansion type electric cooker liner |
| CN114669964A (en) * | 2022-03-28 | 2022-06-28 | 中铝瑞闽股份有限公司 | Short-process production method of new energy power battery shell cover plate strip |
| CN114990388A (en) * | 2022-04-27 | 2022-09-02 | 浙江桐昆新材料研究院有限公司 | Aluminum shell for new energy battery discontinuous die and manufacturing method thereof |
| CN115386702A (en) * | 2022-07-07 | 2022-11-25 | 浙江桐昆新材料研究院有限公司 | Material for new energy battery aluminum shell suitable for continuous die stamping and manufacturing method thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106591645B (en) * | 2016-11-30 | 2018-04-27 | 中铝瑞闽股份有限公司 | A kind of packaging for foodstuff irregular shaped can aluminium alloy strips and preparation method thereof |
| CN106591645A (en) * | 2016-11-30 | 2017-04-26 | 中铝瑞闽股份有限公司 | Aluminum alloy strip for food packaging special-shaped can and preparation method of aluminum alloy strip |
| CN106636775A (en) * | 2016-12-20 | 2017-05-10 | 中铝瑞闽股份有限公司 | Aluminum alloy strip used for powder battery shell and preparation method of aluminum alloy strip |
| CN106893906A (en) * | 2017-01-20 | 2017-06-27 | 中铝瑞闽股份有限公司 | A kind of 202 type easy open cover aluminium alloy strips and preparation method thereof |
| CN107130146A (en) * | 2017-06-07 | 2017-09-05 | 中铝瑞闽股份有限公司 | A kind of capacitor case aluminium alloy strips and preparation method thereof |
| CN107604212A (en) * | 2017-09-12 | 2018-01-19 | 中铝瑞闽股份有限公司 | Integrated battery cover board aluminium alloy strips and preparation method thereof |
| CN107739924B (en) * | 2017-11-14 | 2019-07-12 | 中铝东南材料院（福建）科技有限公司 | A kind of new-energy automobile vacuum booster shell aluminium alloy strips and preparation method |
| CN107739924A (en) * | 2017-11-14 | 2018-02-27 | 中铝东南材料院（福建）科技有限公司 | A kind of new-energy automobile vacuum booster shell aluminium alloy strips and preparation method |
| CN108559878A (en) * | 2018-03-08 | 2018-09-21 | 常州常发制冷科技有限公司 | Battery case aluminum alloy strip and preparation method thereof |
| CN110453110A (en) * | 2019-09-03 | 2019-11-15 | 南通恒金复合材料有限公司 | A kind of housing of power cell aluminium alloy strips and preparation method thereof |
| CN114752821A (en) * | 2019-09-03 | 2022-07-15 | 南通恒金复合材料有限公司 | Aluminum alloy strip for power battery shell and preparation method thereof |
| CN111041283A (en) * | 2019-12-19 | 2020-04-21 | 广西南南铝加工有限公司 | Production method of 3003 aluminum alloy wafer for deep-drawing expansion type electric cooker liner |
| CN111041283B (en) * | 2019-12-19 | 2021-09-07 | 广西南南铝加工有限公司 | Production method of 3003 aluminum alloy wafer for deep-drawing expansion type electric cooker liner |
| CN114669964A (en) * | 2022-03-28 | 2022-06-28 | 中铝瑞闽股份有限公司 | Short-process production method of new energy power battery shell cover plate strip |
| CN114990388A (en) * | 2022-04-27 | 2022-09-02 | 浙江桐昆新材料研究院有限公司 | Aluminum shell for new energy battery discontinuous die and manufacturing method thereof |
| CN115386702A (en) * | 2022-07-07 | 2022-11-25 | 浙江桐昆新材料研究院有限公司 | Material for new energy battery aluminum shell suitable for continuous die stamping and manufacturing method thereof |
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