CN109097645A - A kind of power battery for hybrid electric vehicle group pallet aluminium alloy strips and preparation method thereof - Google Patents
A kind of power battery for hybrid electric vehicle group pallet aluminium alloy strips and preparation method thereof Download PDFInfo
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- CN109097645A CN109097645A CN201811256391.8A CN201811256391A CN109097645A CN 109097645 A CN109097645 A CN 109097645A CN 201811256391 A CN201811256391 A CN 201811256391A CN 109097645 A CN109097645 A CN 109097645A
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- aluminium alloy
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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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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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
- 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
- C22F1/047—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 magnesium as the next major constituent
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- Crystallography & Structural Chemistry (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a kind of power battery for hybrid electric vehicle group pallet aluminium alloy strips and preparation method thereof.The mass percent of the chemical component of aluminium alloy strips are as follows: Si is not more than 0.10%, Fe is 0.20%-0.30%, and Cu is not more than 0.05%, Mn 0.20%-0.30%, Mg is 2.60%-3.00%, Cr is not more than 0.05%, Ti 0.01%-0.03% no more than 0.30%, Zn, Na is not more than 0.0004%, other impurities are individually not more than 0.05%, add up to and are not more than 0.15%, remaining surplus is Al.The present invention is under the premise of optimized alloy ingredient, taking homogenizing cast ingot, it is cold-rolled to finished product thickness and takes air-cushion type continuous annealing furnace production technology, obtain that moderate strength, elongation percentage are good to take offence a kind of production method of battery pack tray aluminum alloy base material suitable for subsequent stamping forming hybrid vehicle.
Description
Technical field
The present invention relates to aluminum alloy base material technical fields, and in particular to a kind of power battery for hybrid electric vehicle group pallet use
Aluminium alloy strips and preparation method thereof.
Background technique
Automobile power cell group is generally made of power battery module, structural system, electrical system etc..Battery pack tray is made
For the important component of structural system, the work of support, resistance to mechanical impact, mechanical oscillation and environmental protection (water proof and dust proof) is played
With.
Power battery pack pallet is welded after a degree of deep-draw molding and is used, and this requires aluminum alloy materials with good
Good deep drawability (moderate strength extends) and welding performance.5754 aluminium alloys have moderate strength, good corrosion resistance,
The features such as weldability and forming easy to process is the excellent material for being used as power battery pack pallet.
For 5754 aluminium alloys with deep-draw forming requirements, traditional process route is: hot rolling-cold rolling-cleaning-finished product
Packaging is aligned-is cut in box annealing-, using conventional ingredient, common heating furnace technique, batch annealing, material yield strength
In 120Mpa or more, elongation percentage 18~22%, yield strength is higher, and elongation percentage is relatively low, influences subsequent punch forming, improves annealing
The defects of temperature, surface easily occurs whitening, organize, consistency of performance is poor.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of power battery for hybrid electric vehicle group pallet aluminum alloy strips
Material and preparation method thereof.
In order to achieve the above objectives, the invention provides the following technical scheme:
The present invention provides a kind of power battery for hybrid electric vehicle group pallet aluminium alloy strips, the quality of chemical component
Percentage are as follows: Si is not more than 0.10%, Fe 0.20%-0.30%, and Cu is not more than 0.05%, Mn 0.20%-0.30%, Mg
It is not more than 0.05%, Ti 0.01%-0.03% no more than 0.30%, Zn for 2.60%-3.00%, Cr, Na is not more than
0.0004%, other impurities are individually not more than 0.05%, add up to and are not more than 0.15%, remaining surplus is Al.
The present invention also provides a kind of preparation methods of power battery for hybrid electric vehicle group pallet aluminium alloy strips, including
Following process flow: (1) ingredient；(2) founding；(3) ingot casting hot continuous rolling homogenization, hot rolling；(4) cold rolling；(5) air-cushion type is continuously moved back
Stove annealing；(6) it cleans, align；(7) it cuts, pack；Wherein, in (1) burden process, by mass percentage are as follows: Si
It is not more than 0.05%, Mn 0.20%-0.30%, Mg 2.60%- no more than 0.10%, Fe 0.20%-0.30%, Cu
3.00%, Cr are not more than 0.05%, Ti 0.01%-0.03% no more than 0.30%, Zn, and Na is not more than 0.0004%, other
Impurity is individually not more than 0.05%, adds up to and is not more than 0.15%, remaining surplus is that Al carries out ingredient.
Further, in ingot casting hot continuous rolling Homogenization Treatments, ingot casting Homogenization Treatments in pushing type heating furnace, uniformly
490~530 ± 5 DEG C/6h of change system makes to obtain the equally distributed tissue of compound.
Further, in hot-rolled finished product process, 480~500 DEG C of hot rolling roughing start rolling temperature, finish rolling finishing temperature 280
DEG C or more, 6.0 or less mm of finish to gauge thickness.
Further, in cold rolling, it is cold-rolled to 3.5mm finished product thickness.
Further, in air-cushion type continuous annealing furnace annealing, 400 DEG C~500 DEG C of annealing temperature, the time is kept for 10 minutes
Below.
The beneficial effects of the present invention are: the present invention on the basis of 5754 aluminium alloy, by optimized alloy composition proportion,
Ingot homogenization heat treatment, is cold-rolled to finished product thickness, takes heating rate fast, is heated evenly, the air-cushion type of high production efficiency connects
Continuous anneal.After annealing, moderate strength, high-elongation can get, the good substrate of structure property consistency meets following process
Forming requirements.
Specific embodiment
The invention will be further described for knot specific embodiment below, so that those skilled in the art can preferably manage
The solution present invention can be simultaneously practiced, but illustrated embodiment is not as a limitation of the invention.
Embodiment one
A kind of power battery for hybrid electric vehicle group pallet aluminium alloy strips of the present invention, the quality percentage of chemical component
Than are as follows: Si is not more than 0.10%, Fe 0.20%-0.30%, and Cu is not more than 0.05%, Mn 0.20%-0.30%, and Mg is
2.60%-3.00%, Cr are not more than 0.05%, Ti 0.01%-0.03% no more than 0.30%, Zn, and Na is not more than
0.0004%, other impurities are individually not more than 0.05%, add up to and are not more than 0.15%, remaining surplus is Al.
The present invention also provides a kind of preparation methods of power battery for hybrid electric vehicle group pallet aluminium alloy strips, including
Following process flow: (1) ingredient；(2) founding；(3) ingot casting hot continuous rolling homogenization, hot rolling；(4) cold rolling；(5) air-cushion type is continuously moved back
Stove annealing；(6) it cleans, align；(7) it cuts, pack.Wherein, in (1) burden process, by mass percentage are as follows: Si
It is not more than 0.05%, Mn 0.20%-0.30%, Mg 2.60%- no more than 0.10%, Fe 0.20%-0.30%, Cu
3.00%, Cr are not more than 0.05%, Ti 0.01%-0.03% no more than 0.30%, Zn, and Na is not more than 0.0004%, other
Impurity is individually not more than 0.05%, adds up to and is not more than 0.15%, remaining surplus is that Al carries out ingredient.
In ingot casting hot continuous rolling Homogenization Treatments, ingot casting Homogenization Treatments in pushing type heating furnace, Homogenization Treatment 490
~530 ± 5 DEG C/6h, make to obtain the equally distributed tissue of compound.
In hot-rolled finished product process, 480~500 DEG C of hot rolling roughing start rolling temperature, 280 DEG C of finish rolling finishing temperature or more, eventually
Roll 6.0 or less mm of thickness.
In cold rolling, it is cold-rolled to 3.5mm finished product thickness.
In air-cushion type continuous annealing furnace annealing, using air-cushion type continuous annealing furnace annealing, heating rate is fast, production efficiency
Height, structure property uniformity is good, and 400 DEG C~500 DEG C of annealing temperature, time holding 10 minutes or less.
Embodiment two
A kind of power battery for hybrid electric vehicle group pallet aluminium alloy strips of the present invention, the quality percentage of chemical component
Than are as follows: Si 0.10%, Fe 0.24%, Cu 0.05%, Mn 0.26%, Mg 2.79%, Cr 0.30%, Zn are
0.05%, Ti 0.15%, Na 0.0004%, other impurities 0.13%, remaining surplus are Al.
The present invention also provides a kind of preparation methods of power battery for hybrid electric vehicle group pallet aluminium alloy strips, including
Following process flow: (1) ingredient；(2) founding；(3) ingot casting hot continuous rolling homogenization, hot rolling；(4) cold rolling；(5) air-cushion type is continuously moved back
Stove annealing；(6) it cleans, align；(7) it cuts, pack.Wherein, in (1) burden process, by mass percentage are as follows::
Si is 0.10%, Fe 0.24%, Cu 0.05%, Mn 0.26%, Mg 2.79%, Cr 0.30%, Zn 0.05%,
Ti is 0.15%, Na 0.0004%, and other impurities 0.13%, remaining surplus is that Al carries out ingredient.
In ingot casting hot continuous rolling Homogenization Treatments, ingot casting Homogenization Treatments in pushing type heating furnace, Homogenization Treatment 499
± 5 DEG C/6h, make to obtain the equally distributed tissue of compound.
In hot-rolled finished product process, 495 DEG C of hot rolling roughing start rolling temperature, 280 DEG C of finish rolling finishing temperature or more, finish to gauge thickness
5.5mm。
In cold rolling, it is cold-rolled to 3.5mm finished product thickness.
In air-cushion type continuous annealing furnace annealing, using air-cushion type continuous annealing furnace annealing, heating rate is fast, production efficiency
Height, structure property uniformity is good, and 400 DEG C~500 DEG C of annealing temperature, time holding 10 minutes or less.
5754 aluminium alloy strips produced through above-mentioned technique, up to 23~28%, punch forming is imitated for moderate strength, elongation percentage
Fruit is good.
The object of the present invention is to provide a kind of suitable for 5754 aluminium alloys of power battery for hybrid electric vehicle group pallet
Technique production method.The tensile strength for taking 5754 aluminium alloy produced by the invention is 200~230Mpa, yield strength 100
~120Mpa, elongation percentage 23~28%, HB:52~65, process punch forming requirement after satisfaction.
The present invention is cold-rolled to finished product thickness and takes air-cushion type under the premise of optimized alloy ingredient, homogenizing cast ingot
Continuous annealing furnace obtains a kind of moderate strength, high-elongation, the power battery for hybrid electric vehicle group pallet aluminium of good moldability
A kind of production method of alloy strip steel rolled stock.
The present invention is on the basis of original 5754 aluminium alloy, and by optimized alloy composition proportion, ingot homogenization is heat-treated,
It is cold-rolled to finished product thickness, takes heating rate fast, is heated evenly, the air-cushion type continuous annealing furnace annealing of high production efficiency.Annealing
Afterwards, moderate strength, high-elongation be can get, the good substrate of structure property consistency meets following process forming requirements.
The present invention obtained it is a kind of by optimization ingredient and take special Homogenization Treatment, with the production of continuous annealing
Technique, obtains that moderate strength, elongation percentage are good to be suitable for subsequent stamping forming hybrid vehicle and take offence battery pack support
Disk aluminum alloy base material.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (6)
1. a kind of power battery for hybrid electric vehicle group pallet aluminium alloy strips, it is characterised in that: the quality of its chemical component
Percentage are as follows: Si is not more than 0.10%, Fe 0.20%-0.30%, and Cu is not more than 0.05%, Mn 0.20%-0.30%, Mg
It is not more than 0.05%, Ti 0.01%-0.03% no more than 0.30%, Zn for 2.60%-3.00%, Cr, Na is not more than
0.0004%, other impurities are individually not more than 0.05%, add up to and are not more than 0.15%, remaining surplus is Al.
2. a kind of preparation method of power battery for hybrid electric vehicle group pallet aluminium alloy strips, it is characterised in that: including with
Lower process flow: (1) ingredient；(2) founding；(3) ingot casting hot continuous rolling homogenization, hot rolling；(4) cold rolling；(5) air-cushion type continuous annealing
Furnace annealing；(6) it cleans, align；(7) it cuts, pack；Wherein, in (1) burden process, by mass percentage are as follows: Si is not
It is not more than 0.05%, Mn 0.20%-0.30%, Mg 2.60%- greater than 0.10%, Fe 0.20%-0.30%, Cu
3.00%, Cr are not more than 0.05%, Ti 0.01%-0.03% no more than 0.30%, Zn, and Na is not more than 0.0004%, other
Impurity is individually not more than 0.05%, adds up to and is not more than 0.15%, remaining surplus is that Al carries out ingredient.
3. the preparation method of power battery for hybrid electric vehicle group pallet aluminium alloy strips according to claim 2,
It is characterized in that: in ingot casting hot continuous rolling Homogenization Treatments, ingot casting Homogenization Treatments in pushing type heating furnace, Homogenization Treatment
490~530 ± 5 DEG C/6h, make to obtain the equally distributed tissue of compound.
4. the preparation method of power battery for hybrid electric vehicle group pallet aluminium alloy strips according to claim 3,
It is characterized in that: in hot-rolled finished product process, 480~500 DEG C of hot rolling roughing start rolling temperature, 280 DEG C of finish rolling finishing temperature or more, eventually
Roll 6.0 or less mm of thickness.
5. the preparation method of power battery for hybrid electric vehicle group pallet aluminium alloy strips according to claim 4,
It is characterized in that: in cold rolling, being cold-rolled to 3.5mm finished product thickness.
6. the preparation method of power battery for hybrid electric vehicle group pallet aluminium alloy strips according to claim 5,
It is characterized in that: in air-cushion type continuous annealing furnace annealing, 400 DEG C~500 DEG C of annealing temperature, time holding 10 minutes or less.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811256391.8A CN109097645A (en) | 2018-10-26 | 2018-10-26 | A kind of power battery for hybrid electric vehicle group pallet aluminium alloy strips and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811256391.8A CN109097645A (en) | 2018-10-26 | 2018-10-26 | A kind of power battery for hybrid electric vehicle group pallet aluminium alloy strips and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102536A (en) * | 2019-05-14 | 2019-08-09 | 浙江天台九川新材料股份有限公司 | A kind of processing method of automobile stainless steel chiller assembly |
| CN111334690A (en) * | 2020-03-23 | 2020-06-26 | 福建省闽发铝业股份有限公司 | New energy automobile battery tray high-strength aluminum alloy section and preparation method thereof |
| CN113597477A (en) * | 2019-03-19 | 2021-11-02 | 新布里萨什肯联铝业 | Battery box bottom part for electric vehicle |
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| CN103014454A (en) * | 2012-12-27 | 2013-04-03 | 亚洲铝业（中国）有限公司 | Production method of 5052-H34 aluminum alloy plate strip |
| CN103014453A (en) * | 2012-12-27 | 2013-04-03 | 亚洲铝业（中国）有限公司 | Production method of 5754-H24 aluminum alloy plate strip |
| CN108130461A (en) * | 2017-12-22 | 2018-06-08 | 中铝西南铝冷连轧板带有限公司 | A kind of coachbuilt body column plaque 5754 aluminum alloy base materials and its production method |
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2018
- 2018-10-26 CN CN201811256391.8A patent/CN109097645A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014454A (en) * | 2012-12-27 | 2013-04-03 | 亚洲铝业（中国）有限公司 | Production method of 5052-H34 aluminum alloy plate strip |
| CN103014453A (en) * | 2012-12-27 | 2013-04-03 | 亚洲铝业（中国）有限公司 | Production method of 5754-H24 aluminum alloy plate strip |
| CN108130461A (en) * | 2017-12-22 | 2018-06-08 | 中铝西南铝冷连轧板带有限公司 | A kind of coachbuilt body column plaque 5754 aluminum alloy base materials and its production method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113597477A (en) * | 2019-03-19 | 2021-11-02 | 新布里萨什肯联铝业 | Battery box bottom part for electric vehicle |
| CN110102536A (en) * | 2019-05-14 | 2019-08-09 | 浙江天台九川新材料股份有限公司 | A kind of processing method of automobile stainless steel chiller assembly |
| CN111334690A (en) * | 2020-03-23 | 2020-06-26 | 福建省闽发铝业股份有限公司 | New energy automobile battery tray high-strength aluminum alloy section and preparation method thereof |
| CN111334690B (en) * | 2020-03-23 | 2021-07-02 | 福建省闽发铝业股份有限公司 | New energy automobile battery tray high-strength aluminum alloy section and preparation method thereof |
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Application publication date: 20181228 |
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