CN107245611B - A kind of automobile foam aluminium plate and its foam process - Google Patents
A kind of automobile foam aluminium plate and its foam process Download PDFInfo
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- CN107245611B CN107245611B CN201710464401.6A CN201710464401A CN107245611B CN 107245611 B CN107245611 B CN 107245611B CN 201710464401 A CN201710464401 A CN 201710464401A CN 107245611 B CN107245611 B CN 107245611B
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- foaming
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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
- 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
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a kind of automobile foam aluminium plates, it is characterised in that is made of the component of following weight percent hundred：Calcium：4~7%, tungsten：0.40~1.0%, titanium：0.05~0.3%, magnesium：0.08~0.4%, lanthanum：0.05~0.25%, iron：0.3 0.5%, zinc：0.15 0.2%, surplus is aluminium and inevitable impurity.Present component is relatively simple, changes conventional foam aluminium formula, increases tungsten lanthanum alloy, can improve foamed aluminium energy absorption ability, while change traditional foam process, improve the foaming effect of foamed aluminium, solves the problems, such as that tradition foaming is uneven.
Description
Technical field
The present invention relates to Study on Foamed Aluminum Technology fields, and in particular to a kind of automobile foam aluminium plate and its foam process.
Background technology
The continuous development of modern high technology so that electromagnetic interference caused by electromagnetic wave and electromagnetic compatibility problem are 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；In addition electromagnetic wave leakage also pacify by entail dangers to national information
The safety of complete and military vital strategic secrets.Substantive dash forward is had been achieved with especially as the electromagnetic pulse weapon of new concept weapon
It is broken, electronic equipment, electric system etc. can directly be hit, cause the temporary failure of information system etc. or permanent damage
Bad and powerful electromagnetic pulse can also damage human body, and it is out of control etc. to make one neurological disorders, behavior.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 environmental-protecting electromagnetic shielding material risen in recent years, it has special cellular knot
Structure is a kind of also small metal material of density ratio water, has good resistance to compression and impact strength, and shield effectiveness is high, energy
Meet the shielding needs of ideal sensitive instrument and equipment, prevent secret leakage, reduce injury to human body and to other electronics
The interference of instrument.In addition, because it has the characteristics of recyclable, environmentally friendly concurrently, the development of current social is adapted to, at home and abroad some works
Industry field and high-tech sector are widely applied.
Absorbing material develops towards the direction of " thin, light, wide, strong ", research shows that, 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 wave-absorbing mechanism is also at the elementary step.Porous foam metal material is a kind of porous
Lightweight metal material, the performances such as people's system research its damping, shock resistance, sound absorption damping, electromagnetic wave shielding, therefore
It has also been widely used on automobile.How to further improve the performance of foamed aluminium and its yield is made to be that the application to be solved
Certainly the problem of.
Invention content
The technical problems to be solved by the invention are to provide that a kind of performance is good, the wide automobile foamed aluminium board of use scope
Material.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of automobile foam aluminium plate, is made of following components in percentage by weight：
Calcium：4~7%
Tungsten：0.40~1.0%
Titanium：0.05~0.3%
Magnesium：0.08~0.4%
Lanthanum：0.05~0.25%
Iron：0.3-0.5%
Zinc：0.15-0.2%
Surplus is aluminium and inevitable impurity.
The preferable weight percent of above-mentioned each component is：
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.
A kind of foam process of automobile foam aluminium plate, step are as follows：
(1) first tungsten is heated to melting, 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, until whole fusings
After continue to stir 10min, aluminium master alloy is made；
(3) tungsten lanthanum alloy and aluminium master alloy are put into smelting furnace together, heating fusing stirs evenly, obtains foaming alloy molten solution；
(4) foaming alloy molten solution is introduced into agitator tank, and agitator tank is stirred, while agitating from stirring
Pot bottom is blown into liquid nitrogen or dry ice, liquid nitrogen or dry ice heat absorption vaporization, forms pressure, is run up from foaming alloy molten solution bottom,
Due to by resistance, forming blistering in the alloy molten solution that foams, while under stirring, blistering is evenly distributed on foaming alloy
In melt；
(5) before treating that temperature starts solidification close to foaming alloy molten solution, the discharge port 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 melt, 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 the above-mentioned foam process of the present 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；
More than 0.7 noise reduction coefficient NRC (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 beneficial effects of the invention are as follows：Present component is relatively simple, changes conventional foam aluminium formula, increases tungsten lanthanum and closes
Gold can improve foamed aluminium energy absorption ability, while change traditional foam process, improve the foaming effect of foamed aluminium, solve
The problem of tradition foaming is uneven.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
Foamed aluminium proportioning such as following table in embodiment 1-5：
The foam process of embodiment 1-5 is as follows：
(1) first tungsten is heated to melting, 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, until whole fusings
After continue to stir 10min, aluminium master alloy is made；
(3) tungsten lanthanum alloy and aluminium master alloy being put into smelting furnace together, heating fusing stirs evenly, obtains foaming alloy molten solution,
Then thickener and foaming agent are added in, is stirred evenly；
The addition of wherein foaming agent accounts for the 0.5% of foaming alloy molten solution weight.
The addition of wherein thickener accounts for the 1% of foaming alloy molten solution weight.
(4) foaming alloy molten solution is introduced into agitator tank, and agitator tank is stirred, while agitating from stirring
Pot bottom is blown into liquid nitrogen or dry ice, liquid nitrogen or dry ice heat absorption vaporization, forms pressure, is run up from foaming alloy molten solution bottom,
Due to by resistance, forming blistering in the alloy molten solution that foams, while under stirring, blistering is evenly distributed on foaming alloy
In melt；
(5) before treating that temperature starts solidification close to foaming alloy molten solution, the discharge port 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.
The basic principles, main features and the advantages of the invention have 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 above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, 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 (3)
1. a kind of automobile foam aluminium plate, it is characterised in that be made of following components in percentage by weight：
Calcium：4~7%, tungsten：0.40~1.0%, titanium：0.05~0.3%, magnesium：0.08~0.4%, lanthanum：0.05~0.25%,
Iron：0.3-0.5%, zinc：0.15-0.2%, surplus are aluminium and inevitable impurity；
The foam process of above-mentioned foam aluminium plate is as follows：
(1) first tungsten is heated to melting, is slow added into lanthanum, it is stirring while adding, continue to stir 10min after adding, then cool down
To 500 DEG C, 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, until all fusing is subsequent
Continuous stirring 10min, is made aluminium master alloy；
(3) tungsten lanthanum alloy and aluminium master alloy are put into smelting furnace together, heating fusing stirs evenly, obtains foaming alloy molten solution；
(4) foaming alloy molten solution is introduced into agitator tank, and agitator tank is stirred, while agitating from agitator tank bottom
Portion is blown into liquid nitrogen or dry ice, liquid nitrogen or dry ice heat absorption vaporization, forms pressure, is run up from foaming alloy molten solution bottom, due to
By resistance, blistering is formed in the alloy molten solution that foams, while under stirring, blistering is evenly distributed on foaming alloy molten solution
In；
(5) before treating that temperature starts solidification close to foaming alloy molten solution, the discharge port of stirring pot bottom is opened, after the completion of stirring
Foaming alloy molten solution 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.
2. a kind of automobile foam aluminium plate according to claim 1, it is characterised in that：It has been additionally added in step (3)
Thickener, it is therefore an objective to increase the viscosity of melt, the addition of wherein thickener accounts for the 1%-2% of foaming alloy molten solution weight.
3. a kind of automobile foam aluminium plate according to claim 1, it is characterised in that：It has been additionally added in step (3)
Foaming agent, it is therefore an objective to increase foaming effect, the addition of wherein foaming agent accounts for the 0.5%-1% of foaming alloy molten solution weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464401.6A CN107245611B (en) | 2017-06-19 | 2017-06-19 | A kind of automobile foam aluminium plate and its foam process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464401.6A CN107245611B (en) | 2017-06-19 | 2017-06-19 | A kind of automobile foam aluminium plate and its foam process |
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| Publication Number | Publication Date |
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| CN107245611A CN107245611A (en) | 2017-10-13 |
| CN107245611B true CN107245611B (en) | 2018-06-19 |
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| CN201710464401.6A Active CN107245611B (en) | 2017-06-19 | 2017-06-19 | A kind of automobile foam aluminium plate and its foam process |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330415B (en) * | 2018-01-26 | 2020-04-03 | 安徽省一鸣新材料科技有限公司 | Foamed aluminum for shielding gamma rays and preparation method thereof |
| CN109022880B (en) * | 2018-10-09 | 2019-11-26 | 唐小琴 | A kind of foamed aluminium Quick foaming device |
| CN109055829A (en) * | 2018-10-09 | 2018-12-21 | 合肥斯姆雷品牌管理有限公司 | A kind of continuous foamed technique of foamed aluminium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1876862A (en) * | 2006-07-05 | 2006-12-13 | 东南大学 | Method for preparing foamed aluminium alloy product by secondary foaming |
| CN101182608A (en) * | 2007-12-12 | 2008-05-21 | 昆明理工大学 | Preparation method of small pore diameter foamed aluminium |
| CN103320637A (en) * | 2012-03-21 | 2013-09-25 | 北京科技大学 | Light high-strength closed-cell foam aluminium alloy and preparation method thereof |
| CN106222470A (en) * | 2016-09-14 | 2016-12-14 | 郑州峰泰纳米材料有限公司 | A kind of preparation method of foam aluminium alloy |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2871642B1 (en) * | 2013-11-06 | 2019-08-28 | Airbus Defence and Space GmbH | Solar cell interconnector and manufacturing method thereof |
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- 2017-06-19 CN CN201710464401.6A patent/CN107245611B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1876862A (en) * | 2006-07-05 | 2006-12-13 | 东南大学 | Method for preparing foamed aluminium alloy product by secondary foaming |
| CN101182608A (en) * | 2007-12-12 | 2008-05-21 | 昆明理工大学 | Preparation method of small pore diameter foamed aluminium |
| CN103320637A (en) * | 2012-03-21 | 2013-09-25 | 北京科技大学 | Light high-strength closed-cell foam aluminium alloy and preparation method thereof |
| CN106222470A (en) * | 2016-09-14 | 2016-12-14 | 郑州峰泰纳米材料有限公司 | A kind of preparation method of foam aluminium alloy |
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| CN107245611A (en) | 2017-10-13 |
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