CN101109050A - Method for continuously manufacturing stephanoporate aluminum product with gas direct blowing and blowing and device thereof - Google Patents
Method for continuously manufacturing stephanoporate aluminum product with gas direct blowing and blowing and device thereof Download PDFInfo
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- CN101109050A CN101109050A CNA2007101211777A CN200710121177A CN101109050A CN 101109050 A CN101109050 A CN 101109050A CN A2007101211777 A CNA2007101211777 A CN A2007101211777A CN 200710121177 A CN200710121177 A CN 200710121177A CN 101109050 A CN101109050 A CN 101109050A
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Abstract
The invention relates to a continuous preparation method for a porous aluminum material by utilizing gas direct injection foaming and a device, which belongs to the porous metal material preparation technology field. By taking the aluminum and the alloy, metal Ca and Al2O3 as the raw material, the invention firstly prepares a tackifying melt with tackifying granulation, and then the tackifying melt is shifted to a foaming trough and the tackifying melt is directly injected with gas to make it form liquid state or semi-solid state foamed aluminum; the foam trough is continuously supplemented with the tackifying melt with tackifying granulation and the finished foamed aluminum is promptly guided out, thus the invention is capable of continuously preparing the porous aluminum material. By adopting the gas direct injection foaming continuously preparation technique, the prepared porous material has the advantages of the low density, big void, high productivity, mass production, low production cost as well as broad development prospect.
Description
Technical field
The present invention relates to the continuous preparation method of a kind of porous aluminum or aluminium alloy material, particularly a kind of method and device of taking semicontinuous casting technology and rotary blowing foaming to prepare stephanoporate aluminum product.
Background technology
At present, the preparation method of porous metal mainly contains: add whipping agent foam melt method, seepage flow casting, powder metallurgic method, physics or chemical deposition etc.The relative merits of the whole bag of tricks are as shown in the table.
Main preparation technology's method relative merits contrast of porous aluminum
| Processing method | Advantage | Shortcoming |
| The seepage flow casting | Even pore distribution, the porosity height | Product size and shape are subjected to process technology limit, complex process |
| Powder metallurgic method | The porosity setting range is wide, porous nickel | The cost height, mechanical property is low |
| Electricity/vapour deposition process | The hole connectedness is got well and is evenly distributed, and porosity is big | Products thickness is limited, the cost height |
| Directional solidification method | The void distribution rule | Complex process, the cost height |
| Add the whipping agent method | Technology is simple, and cost is lower | Foaming process is wayward |
From above preparation method, what might realize large-scale industrial production is castmethod and powder metallurgic method.But the complex process of powder metallurgy process, production cost height, and the mechanical property of goods is on the low side, has limited it in industrial application.In method for casting production, the seepage flow casting technique is fairly simple, but shape of products and size are restricted; It is wayward to add whipping agent rule foaming process, is difficult to obtain the goods of uniform texture; Though the void distribution rule of directional solidification method preparation, complex process, technology are restive, with high costs.Above method also has a common drawback, is not suitable for the large-scale industrialization continuous production.
How to seek that a kind of preparation technology is simple, controlled, processing ease, with low cost, the stephanoporate aluminum product preparation technology that is fit to large-scale industrial production, then be the direction of casting scientific worker effort always.
Summary of the invention
The objective of the invention is to propose a kind of processing method of utilizing gas direct injection foaming to prepare stephanoporate aluminum product continuously, the production principle of this method utilization continuous casting, can realize the continuous or semicontinuous production of porous aluminum sheet material, not only casting technique and equipment are simple, cost is low, and is suitable for large-scale industrial production.
Another object of the present invention provides the employed specific equipment of a kind of above-mentioned processing method.
Technical scheme of the present invention is as follows:
A kind of method of utilizing gas direct injection foaming to prepare stephanoporate aluminum product continuously, this method is carried out as follows: it is characterized in that:
1), under this melting state, adds the metal Ca of 1～3wt% and the Al of 4～20wt%. with the aluminum or aluminum alloy heat fused
2O
3Particle stirs, and makes to contain tackify particulate tackifying fusant;
2) tackifying fusant is transferred in the foaming groove, makes the temperature of tackifying fusant remain on 700～850 ℃, to the direct blowing gas of tackifying fusant, form liquid or semi-solid foamed aluminium by gas introducing apparatus;
3) the liquid or semi-solid foamed aluminium after the foaming is flow on the travelling belt of transport unit by chute, foamed aluminium is solidified, can obtain stephanoporate aluminum product;
4) in the foaming groove, continuously replenish and contain tackify particulate tackifying fusant, and in time established foam is guided away, can prepare stephanoporate aluminum product continuously.
Preferred version of the present invention is: the flow velocity of described blowing gas is 60～160L/h, and described gas adopts air or nitrogen.In the aluminum or aluminum alloy of fusing, add metal Ca and Al
2O
3Adopt whipping appts to stir during particle.
Another technical characterictic of the present invention is: gas introducing mode can adopt from foaming groove top, foaming trench bottom or foaming groove side bubbling air or nitrogen among the present invention.
The present invention also provides a kind of device of realizing the continuous preparation stephanoporate aluminum product of described method, it is characterized in that: this device is made up of tackifying fusant preparation facilities, gas introducing apparatus, foaming groove and e Foerderanlage, and described tackifying fusant preparation facilities is made up of with being arranged on the whipping appts in the crucible and being arranged on crucible external heated attemperator crucible; Described foaming groove comprises the melt region of intake, and flux foaming district and chute are provided with the refractory materials dividing plate between melt region of intake and flux foaming district, and the bottom is provided with communicating aperture; Described gas introducing apparatus comprises gas inlet pipe and gas jet, and this gas jet is positioned at the foaming district; Described chute is arranged between foaming groove and the e Foerderanlage.
Gas inlet pipe of the present invention inserts in the foaming district from the top of foaming groove, adopts to live with the foaming groove to be connected; Perhaps insert in the foaming district, adopt with the foaming groove and fixedly connected from the side or the bottom surface of foaming groove.
The present invention compared with prior art has the following advantages and the high-lighting effect: 1. adopt air or nitrogen to produce the source as hole, wide material sources and cheap; 2. can realize serialization, large-scale industrial production; Under stable manufacturing condition, the production rate of stephanoporate aluminum product (wide 500-1000mm, thick 10-50mm) can reach 15-90m/h; 3. porous aluminum of Sheng Chaning or porous Al alloy material can come into operation immediately, need not process or few processing; 4. the porosity of porous aluminum goods is 80～96%, and pore dimension has good acoustically effective at 5～25mm; 5. casting technique is simple, low production cost.
Description of drawings
Fig. 1 is principle, the structural representation that utilizes gas direct injection foaming to prepare the stephanoporate aluminum product equipment therefor provided by the invention.(a) discontinuous production equipment therefor and process flow sheet; (b) continuous production equipment therefor and process flow sheet.
Fig. 2 is tackifying fusant preparation facilities and preparation process synoptic diagram.
Fig. 3 is the structural representation of foaming groove.
Fig. 4 is four kinds of mode synoptic diagram introducing gas in tackifying fusant.(a) feed gas from top; (b) feed gas from the bottom; (c), (d) is for feeding gas from the side.
Fig. 5 is the structural representation of transport unit.
Among the figure: 1-Al melt+Al
2O
3The 2-gas introducing apparatus; The 3-groove that foams; The 4-heating and heat-insulating device; The 5-chute; The 6-e Foerderanlage; The 7-foamed aluminium; 8-refractory materials dividing plate; 9-tackifying fusant preparation facilities; The 10-crucible; The 11-whipping appts; 12a-whipping appts motor; 12b-e Foerderanlage motor; 13-tackify particle adding apparatus; 14-melt region of intake; 15-flux foaming district; The 16-live roll; 17-transmits crawler belt; The 18-supporting roll; The 19-stephanoporate aluminum product; The 20-corrector roll.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention, structure and technical process are described further.
Fig. 1 represents to adopt the gas direct injection method, and discontinuous (Fig. 1 is the processing method of (Fig. 1 b) preparation stephanoporate aluminum product a) or continuously.Whole device is made up of tackifying fusant preparation facilities 9, gas introducing apparatus 2, foaming groove 3 and e Foerderanlage 6.This method adds the metal Ca of 1～3wt% and the Al of 4～20wt% at first with the aluminum or aluminum alloy heat fused under this melted state
2O
3Particle stirs, and makes to contain tackify particulate tackifying fusant.Can adopt tackifying fusant preparation facilities 9 as shown in Figure 2 during the preparation tackifying fusant.The tackifying fusant for preparing is transferred to the melt region of intake 14 of foaming in the groove 3, makes the temperature of tackifying fusant remain on 700～850 ℃, and make the liquid level in the foaming groove 3 remain certain height.Then, by gas introducing apparatus 2, direct flux foaming district 15 bubbling airs or nitrogen in foaming groove 3, can in flux foaming district 15, produce foam like this, and, form one deck foam on the surface of melt along the cell wall upward movement, solidify the back fully and form stephanoporate aluminum product 19.In order to realize successive production, shown in Fig. 1 b, tackifying fusant 1 is added in the melt region of intake 14 continuously, to guarantee that foaming process carries out continuously.
Fig. 2 is tackifying fusant preparation facilities and preparation process synoptic diagram.In insulation crucible 10, aluminum or aluminum alloy is melted to specified temperature, add Ca and Al then
2O
3Particle, and adopt whipping appts 11 to stir continuously, be dispersed in the molten aluminium with making the tackify uniform particles.At last the tackifying fusant 1 for preparing is transferred in the foaming groove.
Fig. 3 is the structural representation of foaming groove 3.The structure of foaming groove 3 mainly is divided into three parts: the one, and melt region of intake 14 is used for replenishing continuously fresh tackifying fusant 1, guarantees that foaming process carries out continuously; The 2nd, flux foaming district 15 is used to introduce gas and makes flux foaming.Be separated with refractory materials dividing plate 8 in the middle of melt region of intake 14 and the flux foaming district 15, but the bottom communicates.The 3rd, chute 5, the foam that is used for accumulating in top, foaming district guides to transport unit 6.Chute is arranged between foaming groove and the e Foerderanlage.
Fig. 4 is four kinds of modes from gas to the foaming district 15 of foaming groove 3 that introduce.Described gas introducing apparatus 2 comprises gas inlet pipe and gas jet, and this gas jet is positioned at the foaming district; Gas inlet pipe inserts in the foaming district from the top of foaming groove, adopts to live with the foaming groove to be connected; Perhaps insert in the foaming district, adopt with the foaming groove and fixedly connected from the side or the bottom surface of foaming groove.
It is the simplest that mode is introduced in its middle and upper part, can handled easily, relatively be suitable for successive scale operation.
Fig. 5 is the horizontal transmission device 6 of stephanoporate aluminum product.At first, the foamed aluminium structure of semi-solid state (having had certain intensity) is via the chute 5 of foaming groove 3, transfer on the travelling belt 17 of transport unit 6, travelling belt 17 travels forward under the drive of motor 12, the foamed aluminium that drives on it travels forward, solidifying fully of final realization foamy structure, and make it have certain width and thickness.By the continuous supply of foamed aluminium in the foaming groove 3, and the school shape of extrusion roll 20, form successive stephanoporate aluminum product 19, and transfer out through supporting roll 18.
Embodiment 1:
1) raw material: fine aluminium;
2) under the state of fusing, add the metal Ca of 1wt% and the Al of 4wt%.
2O
3Particle stirs; Make and contain tackify particulate tackifying fusant; The temperature of tackifying fusant remains on 700 ℃;
3) to flux foaming district bubbling air, the flow velocity of blowing gas is 60L/h;
4) porosity of the porous aluminum sheet material of Huo Deing is 75%, mean pore size 5mm.
Embodiment 2:
1) raw material: aluminium alloy Al-7wt%Si;
2) under the state of fusing, add the metal Ca of 1wt% and the Al of 20wt%.
2O
3Particle; The employing whipping appts stirs; Make and contain tackify particulate tackifying fusant; The temperature of tackifying fusant remains on 850 ℃;
3) feed nitrogen to the flux foaming district, the flow velocity of blowing gas is 160L/h;
4) porosity of the porous alloy aluminium of Huo Deing is 92%, mean pore size 25mm.
Embodiment 3:
1) raw material: aluminium alloy Al-7wt%Si;
2) under the state of fusing, add the metal Ca of 3wt% and the Al of 8wt%.
2O
3Particle; The employing whipping appts stirs; Make and contain tackify particulate tackifying fusant; The temperature of tackifying fusant remains on 750 ℃;
3) to flux foaming district bubbling air, the flow velocity of blowing gas is 80L/h;
4) the stephanoporate aluminum product plate of Huo Deing
Porosity is 80%, mean pore size 14mm.
Embodiment 4:
1) raw material: fine aluminium;
2) under the state of fusing, add the metal Ca of 2wt% and the Al of 10wt%.
2O
3Particle; Stir, make and contain tackify particulate tackifying fusant; The temperature of tackifying fusant remains on 820 ℃;
3) feed nitrogen to the flux foaming district, the flow velocity of blowing gas is 100L/h;
4) the stephanoporate aluminum product porosity of Huo Deing is 85%, mean pore size 18mm.
Embodiment 5:
1) raw material: aluminium alloy Al-7wt%Si;
2) under the state of fusing, add the metal Ca of 1wt% and the Al of 15wt%.
2O
3Particle; The employing whipping appts stirs, and makes to contain tackify particulate tackifying fusant; The temperature of tackifying fusant remains on 850 ℃;
3) to flux foaming district bubbling air, the flow velocity of blowing gas is 120L/h;
4) the porous aluminum sheet material porosity of Huo Deing is 90%, mean pore size 20mm.
Claims (6)
1. method of utilizing gas direct injection foaming to prepare stephanoporate aluminum product continuously, these method case following steps are carried out: it is characterized in that:
1), under this melting state, adds the metal Ca of 1～3wt% and the Al of 4～20wt%. with the aluminum or aluminum alloy heat fused
2O
3Particle stirs, and makes to contain tackify particulate tackifying fusant;
2) tackifying fusant is transferred in the foaming groove, makes the temperature of tackifying fusant remain on 700～850 ℃, to the direct blowing gas of tackifying fusant, form liquid or semi-solid foamed aluminium by gas introducing apparatus;
3) the liquid or semi-solid foamed aluminium after the foaming is flow on the travelling belt of transport unit by chute, foamed aluminium is solidified, can obtain stephanoporate aluminum product;
4) in the foaming groove, continuously replenish and contain tackify particulate tackifying fusant, and in time established foam is guided away, can prepare stephanoporate aluminum product continuously.
2. according to the described method of utilizing gas direct injection foaming to prepare stephanoporate aluminum product continuously of claim 1, it is characterized in that: the flow velocity of described blowing gas is 60～160L/h, and described gas adopts air or nitrogen.
3. according to claim 1 or the 2 described methods of utilizing gas direct injection foaming to prepare stephanoporate aluminum product continuously, it is characterized in that: gas is introduced mode and is adopted respectively from foaming groove top, foaming trench bottom or foaming groove side bubbling air or nitrogen.
4. according to the described method of utilizing gas direct injection foaming to prepare stephanoporate aluminum product continuously of claim 1, it is characterized in that: in the aluminum or aluminum alloy of fusing, add metal Ca and Al
2O
3Adopt whipping appts to stir during particle.
5. realize the device of the continuous preparation stephanoporate aluminum product of method according to claim 1 for one kind, it is characterized in that: this device is made up of tackifying fusant preparation facilities (9), gas introducing apparatus (2), foaming groove (3) and e Foerderanlage (6), and described tackifying fusant preparation facilities is by crucible (10) and be arranged on the interior whipping appts (11) of crucible and be arranged on crucible external heated attemperator and form; Described foaming groove (3) comprises melt region of intake (14), and flux foaming district (15) and chute (5) are provided with refractory materials dividing plate (8) between melt region of intake and flux foaming district, and the bottom is provided with communicating aperture; Described gas introducing apparatus comprises gas inlet pipe and gas jet, and this gas jet is positioned at the foaming district; Described chute is arranged between foaming groove and the e Foerderanlage.
6. according to the device of the described continuous preparation stephanoporate aluminum product of claim 5, it is characterized in that: described gas inlet pipe inserts in the foaming district from the top of foaming groove, adopts to live with the foaming groove to be connected; Perhaps insert in the foaming district, adopt with the foaming groove and fixedly connected from the side or the bottom surface of foaming groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101211777A CN101109050A (en) | 2007-08-31 | 2007-08-31 | Method for continuously manufacturing stephanoporate aluminum product with gas direct blowing and blowing and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101211777A CN101109050A (en) | 2007-08-31 | 2007-08-31 | Method for continuously manufacturing stephanoporate aluminum product with gas direct blowing and blowing and device thereof |
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Cited By (17)
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|---|---|---|---|---|
| CN101818278A (en) * | 2010-05-14 | 2010-09-01 | 大连海事大学 | Device and method for preparing porous foam metal by metal melt inflation process |
| CN102962413A (en) * | 2012-11-29 | 2013-03-13 | 中南大学 | Continuous casting system capable of obtaining closed-cell foam aluminum with uniform bubble bodies |
| CN103966474A (en) * | 2014-05-30 | 2014-08-06 | 芜湖长启炉业有限公司 | Automatic blowing system for foamed molten aluminum |
| CN104120295A (en) * | 2014-07-03 | 2014-10-29 | 昆明理工大学 | Foamed aluminum semi continuous vacuum foaming device and method |
| CN104561635A (en) * | 2014-11-17 | 2015-04-29 | 界首市一鸣新材料科技有限公司 | Foamed aluminum production process combining melt-foaming method and bottom blowing method |
| CN105886822A (en) * | 2016-06-17 | 2016-08-24 | 山东理工大学 | Water-cooling double-roller vertical continuous forming method of foamed aluminum plate |
| CN106180610A (en) * | 2016-08-30 | 2016-12-07 | 燕山大学 | A kind of foam metal sandwich material produces equipment and production method thereof |
| CN107190169A (en) * | 2017-07-17 | 2017-09-22 | 浙江聚彩精密设备有限公司 | A kind of Stirring aluminium liquid foaming mechanisms |
| CN108866370A (en) * | 2018-07-12 | 2018-11-23 | 刘少标 | A kind of air blowing preparation method of foamed aluminium |
| CN109536766A (en) * | 2018-12-11 | 2019-03-29 | 东北大学 | A kind of semi solid slurry based on air blast prepares the method and device of foamed aluminium |
| CN109811172A (en) * | 2019-03-04 | 2019-05-28 | 东北大学 | Two kinds of particles coordinate system based on different wetting for foamed aluminium method and device |
| CN110257660A (en) * | 2019-07-12 | 2019-09-20 | 东北大学 | A kind of device and method producing small pore diameter foamed aluminium |
| CN110317966A (en) * | 2019-08-05 | 2019-10-11 | 王淑芳 | A kind of foam aluminium alloy high-efficiency stirring seal foaming device |
| CN113005322A (en) * | 2021-04-01 | 2021-06-22 | 吉林大学 | Device for preparing gradient foamed aluminum by air blowing method and preparation method thereof |
| CN113649569A (en) * | 2021-08-23 | 2021-11-16 | 昆山晶微新材料研究院有限公司 | Preparation method and device of porous metal material |
| CN114381629A (en) * | 2021-12-13 | 2022-04-22 | 天津忠旺铝业有限公司 | Closed-cell foamed aluminum preparation device and preparation method |
| CN115572872A (en) * | 2022-10-21 | 2023-01-06 | 天津高通新材料有限公司 | Open-cell aluminum-based plating layer, components of foaming aluminum precursor used in open-cell aluminum-based plating layer and preparation method of foaming aluminum precursor |
-
2007
- 2007-08-31 CN CNA2007101211777A patent/CN101109050A/en active Pending
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| CN101818278A (en) * | 2010-05-14 | 2010-09-01 | 大连海事大学 | Device and method for preparing porous foam metal by metal melt inflation process |
| CN102962413A (en) * | 2012-11-29 | 2013-03-13 | 中南大学 | Continuous casting system capable of obtaining closed-cell foam aluminum with uniform bubble bodies |
| CN103966474A (en) * | 2014-05-30 | 2014-08-06 | 芜湖长启炉业有限公司 | Automatic blowing system for foamed molten aluminum |
| CN104120295A (en) * | 2014-07-03 | 2014-10-29 | 昆明理工大学 | Foamed aluminum semi continuous vacuum foaming device and method |
| CN104120295B (en) * | 2014-07-03 | 2016-01-20 | 昆明理工大学 | A kind of semicontinuous vacuum foam apparatus and method of foamed aluminium |
| CN104561635A (en) * | 2014-11-17 | 2015-04-29 | 界首市一鸣新材料科技有限公司 | Foamed aluminum production process combining melt-foaming method and bottom blowing method |
| CN105886822A (en) * | 2016-06-17 | 2016-08-24 | 山东理工大学 | Water-cooling double-roller vertical continuous forming method of foamed aluminum plate |
| CN106180610A (en) * | 2016-08-30 | 2016-12-07 | 燕山大学 | A kind of foam metal sandwich material produces equipment and production method thereof |
| CN107190169B (en) * | 2017-07-17 | 2019-01-25 | 徐州一宁铝业科技有限公司 | A kind of Stirring molten aluminum foaming mechanisms |
| CN107190169A (en) * | 2017-07-17 | 2017-09-22 | 浙江聚彩精密设备有限公司 | A kind of Stirring aluminium liquid foaming mechanisms |
| CN108866370A (en) * | 2018-07-12 | 2018-11-23 | 刘少标 | A kind of air blowing preparation method of foamed aluminium |
| CN109536766A (en) * | 2018-12-11 | 2019-03-29 | 东北大学 | A kind of semi solid slurry based on air blast prepares the method and device of foamed aluminium |
| CN109811172A (en) * | 2019-03-04 | 2019-05-28 | 东北大学 | Two kinds of particles coordinate system based on different wetting for foamed aluminium method and device |
| CN109811172B (en) * | 2019-03-04 | 2020-07-14 | 东北大学 | Method and device for preparing foamed aluminum based on cooperation of two particles with different wettabilities |
| CN110257660A (en) * | 2019-07-12 | 2019-09-20 | 东北大学 | A kind of device and method producing small pore diameter foamed aluminium |
| CN110317966A (en) * | 2019-08-05 | 2019-10-11 | 王淑芳 | A kind of foam aluminium alloy high-efficiency stirring seal foaming device |
| CN110317966B (en) * | 2019-08-05 | 2021-09-24 | 王淑芳 | High-efficient stirring of foam aluminum alloy seals foaming device |
| CN113005322A (en) * | 2021-04-01 | 2021-06-22 | 吉林大学 | Device for preparing gradient foamed aluminum by air blowing method and preparation method thereof |
| CN113649569A (en) * | 2021-08-23 | 2021-11-16 | 昆山晶微新材料研究院有限公司 | Preparation method and device of porous metal material |
| CN114381629A (en) * | 2021-12-13 | 2022-04-22 | 天津忠旺铝业有限公司 | Closed-cell foamed aluminum preparation device and preparation method |
| CN115572872A (en) * | 2022-10-21 | 2023-01-06 | 天津高通新材料有限公司 | Open-cell aluminum-based plating layer, components of foaming aluminum precursor used in open-cell aluminum-based plating layer and preparation method of foaming aluminum precursor |
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