CN107263953A - A kind of electric automobile lightweight bottom plate - Google Patents
A kind of electric automobile lightweight bottom plate Download PDFInfo
- Publication number
- CN107263953A CN107263953A CN201710464895.8A CN201710464895A CN107263953A CN 107263953 A CN107263953 A CN 107263953A CN 201710464895 A CN201710464895 A CN 201710464895A CN 107263953 A CN107263953 A CN 107263953A
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- high tensile
- metal thin
- foamed aluminium
- electric automobile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/046—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- 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
- C22C1/08—Alloys with open or closed pores
-
- 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
- C22C1/08—Alloys with open or closed pores
- C22C1/083—Foaming process in molten metal other than by powder metallurgy
- C22C1/086—Gas foaming process
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/04—Inorganic
- B32B2266/045—Metal
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a kind of electric automobile lightweight bottom plate, the bottom plate is 5 layers of composite construction, it is fixed together using rivet, high tensile metal thin plate, foamed aluminium board, high tensile metal thin plate, foamed aluminium board and high tensile metal thin plate are followed successively by from the bottom to top, in the bottom plate surrounding using vertical metallic framework around reinforcing, make bottom plate integration, realize that intensity does not subtract, car body weight mitigates significantly.Structure design of the present invention is simple; take multi-layered foamed aluminium to replace the vehicle floor technology of superimposion with multilaminar high strength sheet metal, it is to avoid platform floor collision deformation, be conducive to protecting passenger safety; prevent battery pack to be knocked deformation blast on fire, and can effectively absorb the energy produced during collision；Change conventional foam aluminium formula simultaneously, make it have more preferable energy-absorbing effect, increase it and use scope.
Description
Technical field
The present invention relates to technical field of automobile accessories, and in particular to a kind of electric automobile lightweight bottom plate.
Background technology
Modern high technology is continued to develop so that electromagnetic interference caused by electromagnetic wave and electromagnetic compatibility problem be increasingly tight
Weight, not only interferes and damages to electronic instrument, equipment, influence its normal work, serious to restrict China's electronic product and set
Standby international competitiveness, and pollute the environment, endanger human health；Other electromagnetic wave leakage also pacify by entail dangers to national information
The safety of complete and military vital strategic secrets.Substantial dash forward is had been achieved with especially as the electromagnetic pulse weapon of new concept weapon
It is broken, electronic equipment, power system etc. can directly be hit, cause the temporary transient failure of information system etc. or permanent damage
Bad and powerful electromagnetic pulse can also be damaged to human body, make one neurological disorders, behavior out of control etc..Therefore, we will and
When take electromagnetic protection measure, prevent the generation of electromagnetic interference and electromagnetic compatibility problem.
Foamed aluminium material is a kind of novel environment friendly electromagnetic shielding material risen in the last few years, and it has special cellular
Structure, is a kind of density ratio water also small metal material, with good resistance to compression and impact strength, and shield effectiveness is high,
The shielding needs of preferable sensitive instrument and equipment can be met, secret leakage are prevented, reduction is to the injury of human body and to other electricity
The interference of sub- instrument.In addition, because its have recyclable, environmentally friendly concurrently the characteristics of, adapted to the development of current social, more at home and abroad
Industrial circle and high-tech sector are widely applied.
Direction of the absorbing material towards " thin, light, wide, strong " is developed, and research shows, fine and close absorbing material is through porous
Its absorbing property is significantly improved after change, at the same can lightening material significantly density.However, at present to porous absorbing material
Research report it is more rare, the analysis of its wave-absorbing mechanism is also at the elementary step.Porous foam metal material is a kind of new
Porous light metal material, the performance such as people's system research its damping, shock resistance, sound absorption damping, electromagnetic wave shielding,
Therefore also it has been widely used on electric automobile.Existing vehicle is conducted oneself with dignity to mitigate, and takes skeleton structure composite sheet work more
Skill, hits yielding.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of crumple energy-absorbing effect good, the good electric automobile of security
Lightweight bottom plate.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of electric automobile lightweight bottom plate, the bottom plate is 5 layers of composite construction, is fixed together using rivet, by it is lower extremely
On be followed successively by high tensile metal thin plate, foamed aluminium board, high tensile metal thin plate, foamed aluminium board and high tensile metal thin plate, in the bottom plate
Surrounding, around reinforcing, is made bottom plate integration, realizes that intensity does not subtract, car body weight mitigates significantly using vertical metallic framework.
The vertical metallic framework is heavy-gauge sheeting or section bar, and thickness is in 10-15mm.
Thickness≤7mm of the foamed aluminium board.
The high tensile metal gauge of sheet is 0.6~2.2mm.
Above-mentioned foamed aluminium board is made up of the component of following weight percent hundred：
Calcium：5.5%
Tungsten：0.65%
Titanium：0.1%
Magnesium：0.15%
Lanthanum：0.15%
Iron：0.25%
Zinc：0.15%
Surplus is aluminium and inevitable impurity.
Above-mentioned foamed aluminium board preparation method is as follows：
(1) tungsten is first heated to fusing, is slow added into lanthanum, it is stirring while adding, continue to stir 10min after adding, then
500 DEG C are cooled to, tungsten lanthanum alloy is made；
(2) aluminium ingot is heated to 550-700 DEG C, adds calcium, titanium, magnesium, iron and zinc, it is stirring while adding, to whole fusings
Continue to stir 10min afterwards, aluminium foundry alloy is made；
(3) tungsten lanthanum alloy and aluminium foundry alloy are put into smelting furnace together, heating fusing stirs, obtains foaming alloy molten solution；
(4) foaming alloy molten solution is incorporated into agitator tank, and agitator tank is stirred, from stirring while stirring
Pot bottom is blown into liquid nitrogen or dry ice, liquid nitrogen or dry ice heat absorption vaporization, forms pressure, from foaming alloy molten solution bottom up operation,
Due to by resistance, foaming is formed in foaming alloy molten solution, while under stirring, foaming is evenly distributed on foaming alloy
In liquation；
(5) before treating that temperature starts solidification close to foaming alloy molten solution, the discharging opening of stirring pot bottom is opened, stirring is completed
Foaming alloy molten solution afterwards is flowed into direct pouring in molding production line and is molded；
(6) foamed aluminium board of cast molding is processed, the foam aluminium plate of suitable automobile needs is made.
Thickener has been additionally added in step (3), it is therefore an objective to increase the viscosity of liquation, the addition of wherein thickener accounts for hair
Steep the 1%-2% of alloy molten solution weight.
Foaming agent has been additionally added in step (3), it is therefore an objective to increase foaming effect, the addition of wherein foaming agent accounts for foaming
The 0.5%-1% of alloy molten solution weight.
It is 70~75% by foam aluminum pore rate made from above-mentioned foam process of the invention, aperture is 2.6~4.2mm,
The foamed aluminium material produced is processed into 10mm heavy-gauge sheetings, after testing, energy-absorbing density：18~25J/cm3；Intensity：≥18Mpa；
Noise reduction coefficient NRC more than 0.7 (regular-type foam aluminium plate noise reduction coefficient 0.6)；Compression performance (during porosity 75%)：Upper surrender
Point 4.55Mpa, lower yield point 3.30Mpa.Breaking load ＞ 1000N, surface can bear 1500N/m2Load.
The beneficial effects of the invention are as follows：Structure design of the present invention is simple, takes multi-layered foamed aluminium and multilaminar high strength metal foil
Plate replaces the vehicle floor technology of superimposion, it is to avoid platform floor collision deformation, is conducive to protecting passenger safety, prevents battery
Group is knocked deformation blast on fire, and can effectively absorb the energy produced during collision；Change conventional foam aluminium formula simultaneously, make
It has more preferable energy-absorbing effect, increases it and uses scope.
Brief description of the drawings
Fig. 1 is that structure of the present invention shows sectional view.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
As shown in figure 1, a kind of electric automobile lightweight bottom plate, the bottom plate is 5 layers of composite construction, it is fixed on using rivet 1
Together, high tensile metal thin plate 2, foamed aluminium board 3, high tensile metal thin plate 2, foamed aluminium board 3 and high tensile metal are followed successively by from the bottom to top
Thin plate 2, in bottom plate surrounding using vertical metallic framework 4 around reinforcing, makes bottom plate integration, realizes that intensity does not subtract, car body weight
Mitigate significantly.Vertical metallic framework 4 is heavy-gauge sheeting or section bar, and thickness is in 12mm, and the thickness 5mm of foamed aluminium board 3, high tensile metal is thin
The thickness of plate 2 is 1.2mm.
Above-mentioned foamed aluminium board is made up of the component of following weight percent hundred：
Calcium：5.5%
Tungsten：0.65%
Titanium：0.1%
Magnesium：0.15%
Lanthanum：0.15%
Iron：0.25%
Zinc：0.15%
Surplus is aluminium and inevitable impurity.
Above-mentioned foamed aluminium board preparation method is as follows：
(1) tungsten is first heated to fusing, is slow added into lanthanum, it is stirring while adding, continue to stir 10min after adding, then
500 DEG C are cooled to, tungsten lanthanum alloy is made；
(2) aluminium ingot is heated to 550-700 DEG C, adds calcium, titanium, magnesium, iron and zinc, it is stirring while adding, to whole fusings
Continue to stir 10min afterwards, aluminium foundry alloy is made；
(3) tungsten lanthanum alloy and aluminium foundry alloy are put into smelting furnace together, heating fusing stirs, obtains foaming alloy molten solution；
(4) foaming alloy molten solution is incorporated into agitator tank, and agitator tank is stirred, from stirring while stirring
Pot bottom is blown into liquid nitrogen or dry ice, liquid nitrogen or dry ice heat absorption vaporization, forms pressure, from foaming alloy molten solution bottom up operation,
Due to by resistance, foaming is formed in foaming alloy molten solution, while under stirring, foaming is evenly distributed on foaming alloy
In liquation；
(5) before treating that temperature starts solidification close to foaming alloy molten solution, the discharging opening of stirring pot bottom is opened, stirring is completed
Foaming alloy molten solution afterwards is flowed into direct pouring in molding production line and is molded；
(6) foamed aluminium board of cast molding is processed, the foam aluminium plate of suitable automobile needs is made.
Thickener has been additionally added in step (3), it is therefore an objective to increase the viscosity of liquation, the addition of wherein thickener accounts for hair
Steep the 1%-2% of alloy molten solution weight.
Foaming agent has been additionally added in step (3), it is therefore an objective to increase foaming effect, the addition of wherein foaming agent accounts for foaming
The 0.5%-1% of alloy molten solution weight.
It is 70~75% by foam aluminum pore rate made from above-mentioned foam process of the invention, aperture is 2.6~4.2mm,
The foamed aluminium material produced is processed into 10mm heavy-gauge sheetings, after testing, energy-absorbing density：18~25J/cm3；Intensity：≥18Mpa；
Noise reduction coefficient NRC more than 0.7 (regular-type foam aluminium plate noise reduction coefficient 0.6)；Compression performance (during porosity 75%)：Upper surrender
Point 4.55Mpa, lower yield point 3.30Mpa.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. a kind of electric automobile lightweight bottom plate, it is characterised in that the bottom plate is 5 layers of composite construction, and one is fixed on using rivet
Rise, high tensile metal thin plate, foamed aluminium board, high tensile metal thin plate, foamed aluminium board and high tensile metal thin plate are followed successively by from the bottom to top,
The bottom plate surrounding, around reinforcing, makes bottom plate integration using vertical metallic framework.
2. a kind of electric automobile lightweight bottom plate according to claim 1, it is characterised in that the vertical metallic framework is
Heavy-gauge sheeting or section bar, thickness is in 10-15mm.
3. a kind of electric automobile lightweight bottom plate according to claim 1, it is characterised in that the thickness of the foamed aluminium board
≤7mm。
4. a kind of electric automobile lightweight bottom plate according to claim 1, it is characterised in that the high tensile metal thin plate
Thickness is 0.6~2.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464895.8A CN107263953B (en) | 2017-06-19 | 2017-06-19 | A kind of electric car lightweight bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464895.8A CN107263953B (en) | 2017-06-19 | 2017-06-19 | A kind of electric car lightweight bottom plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107263953A true CN107263953A (en) | 2017-10-20 |
| CN107263953B CN107263953B (en) | 2019-08-30 |
Family
ID=60067950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710464895.8A Active CN107263953B (en) | 2017-06-19 | 2017-06-19 | A kind of electric car lightweight bottom plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107263953B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128104A (en) * | 2018-08-09 | 2019-01-04 | 云南科威液态金属谷研发有限公司 | A kind of preparation facilities of low melting point foam metal, method and low melting point foam metal |
| CN111186185A (en) * | 2020-01-14 | 2020-05-22 | 同济大学 | Compression-resistant energy-absorbing foamed aluminum laminated composite board |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2726982Y (en) * | 2004-08-11 | 2005-09-21 | 东北大学 | Foamed aluminium wagon floor |
| WO2012087203A1 (en) * | 2010-12-21 | 2012-06-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Panel structure and production method |
| CN203111318U (en) * | 2013-01-17 | 2013-08-07 | 上海萃智科技发展有限公司 | Passenger car skin structure |
| CN103818050A (en) * | 2014-03-13 | 2014-05-28 | 沈阳和世泰通用钛业有限公司 | Light-metal sandwich composite structure and manufacturing method thereof |
| CN104589715A (en) * | 2014-12-08 | 2015-05-06 | 张旭 | Foamed-aluminium composite straw sandwich board and preparation method thereof |
| CN104608435A (en) * | 2014-12-22 | 2015-05-13 | 界首市一鸣新材料科技有限公司 | A foamed aluminum steel beam with high holding power |
| CN104627110A (en) * | 2015-02-28 | 2015-05-20 | 界首市一鸣新材料科技有限公司 | Method for explosion prevention of oil tank truck by using foamed aluminum |
| CN204370330U (en) * | 2014-12-22 | 2015-06-03 | 森特士兴集团股份有限公司 | A kind of compound sound barrier plate and sound barrier thereof |
-
2017
- 2017-06-19 CN CN201710464895.8A patent/CN107263953B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2726982Y (en) * | 2004-08-11 | 2005-09-21 | 东北大学 | Foamed aluminium wagon floor |
| WO2012087203A1 (en) * | 2010-12-21 | 2012-06-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Panel structure and production method |
| CN203111318U (en) * | 2013-01-17 | 2013-08-07 | 上海萃智科技发展有限公司 | Passenger car skin structure |
| CN103818050A (en) * | 2014-03-13 | 2014-05-28 | 沈阳和世泰通用钛业有限公司 | Light-metal sandwich composite structure and manufacturing method thereof |
| CN104589715A (en) * | 2014-12-08 | 2015-05-06 | 张旭 | Foamed-aluminium composite straw sandwich board and preparation method thereof |
| CN104608435A (en) * | 2014-12-22 | 2015-05-13 | 界首市一鸣新材料科技有限公司 | A foamed aluminum steel beam with high holding power |
| CN204370330U (en) * | 2014-12-22 | 2015-06-03 | 森特士兴集团股份有限公司 | A kind of compound sound barrier plate and sound barrier thereof |
| CN104627110A (en) * | 2015-02-28 | 2015-05-20 | 界首市一鸣新材料科技有限公司 | Method for explosion prevention of oil tank truck by using foamed aluminum |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128104A (en) * | 2018-08-09 | 2019-01-04 | 云南科威液态金属谷研发有限公司 | A kind of preparation facilities of low melting point foam metal, method and low melting point foam metal |
| CN109128104B (en) * | 2018-08-09 | 2021-09-07 | 云南科威液态金属谷研发有限公司 | Preparation device and method of low-melting-point foam metal and low-melting-point foam metal |
| CN111186185A (en) * | 2020-01-14 | 2020-05-22 | 同济大学 | Compression-resistant energy-absorbing foamed aluminum laminated composite board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107263953B (en) | 2019-08-30 |
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