CN104018021A - Method for preparing closed-cell aluminum foam - Google Patents
Method for preparing closed-cell aluminum foam Download PDFInfo
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- CN104018021A CN104018021A CN201410263686.3A CN201410263686A CN104018021A CN 104018021 A CN104018021 A CN 104018021A CN 201410263686 A CN201410263686 A CN 201410263686A CN 104018021 A CN104018021 A CN 104018021A
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- aluminum foam
- barium carbonate
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Abstract
The invention discloses a method for preparing closed-cell aluminum foam and belongs to the technical field of preparation of aluminum foam. The method comprises the following steps: adding calcium and barium carbonate particles after aluminum or an aluminum alloy is molten, uniformly stirring, preserving the temperature, foaming, and finally rapidly cooling to obtain the closed-cell aluminum foam. A foaming agent for preparing the closed-cell aluminum foam is barium carbonate, and the closed-cell aluminum foam comprises the following components in percentage by weight: 3-7 percent of calcium, 3-9 percent of barium carbonate and the balance of aluminum or aluminum alloy, and the granularity of the barium carbonate is 600-1000 meshes. The stirring time is 30minutes at a speed of 1000-3000 revolutions per minute at the temperature of 800 DEG C at the stirring stage, the operating time of the steps of preserving the temperature and foaming is 45 minutes at the temperature of 1500 DEG C, and a water cooling mode is adopted at the cooling stage.
Description
Technical field
The invention belongs to and prepare Study on Foamed Aluminum Technology field, a kind of method of making closed-cell aluminum foam is specifically provided.
Background technology
Foamed aluminium is a kind of novel light porous functional material of distributing in aluminum or aluminum alloy matrix a large amount of connections or non-intercommunicating pore hole, integrate multiple premium properties, as specific surface area is large, specific rigidity is high, and impact energy absorb rate is high, porosity is high, fire-proof and explosion-proof performance is good, and damping characteristics is good, sound insulation sound absorption, electromagnetic shielding, good thermal diffusivity etc.All there is huge market potential and economic worth in aerospace, telecommunications, communications and transportation, nuclear power, medical science, environmental protection, metallurgy, machinery, building, electrochemistry and field of petrochemical industry.
The method of preparing closed-cell aluminum foam is both at home and abroad a lot, and wherein adopting the foaming of whipping agent method is important one.But because foaming agent decomposition temperature is general all lower than the fusing point of aluminum or aluminum alloy, so cause that the foaming effect of whipping agent is bad and foaming efficiency is not high.
Summary of the invention
The shortcoming that the present invention is difficult to mate with whipping agent heat decomposition temperature in order to solve aluminum or aluminum alloy fusing point, spy provides a kind of method of making closed-cell aluminum foam.
The present invention is achieved in that a kind of method of making closed-cell aluminum foam, it is characterized in that: after aluminum or aluminum alloy fusing, add calcium and barium carbonate particle to stir, then thermal insulation foaming, the last cooling closed-cell aluminum foam that obtains fast.
The present invention using heat decomposition temperature far away higher than the barium carbonate of aluminum or aluminum alloy fusing point as whipping agent, make the making of closed-cell aluminum foam become simple, foaming efficiency is high, foaming effect is good, pore texture is even, is applicable to continuous large-scale production.
Embodiment
Embodiment one: a kind of method of making closed-cell aluminum foam, the process of described method is: add calcium and barium carbonate particle to stir after aluminum or aluminum alloy fusing, then thermal insulation foaming, the last cooling closed-cell aluminum foam that obtains fast.
Embodiment two: this embodiment is the further illustrating of method of a kind of described in embodiment one being made to closed-cell aluminum foam, the whipping agent of preparing closed-cell aluminum foam adopts barium carbonate, each component ratio is: calcium is 3wt.%-7wt.%, barium carbonate is 3wt.%-9wt.%, surplus is aluminum or aluminum alloy, and the granularity of barium carbonate is 600-1000 order.
Embodiment three: this embodiment is the further illustrating of method of a kind of described in embodiment one being made to closed-cell aluminum foam, at 800 DEG C, stir 30min with 1000rpm-3000rpm, thermal insulation foaming 45min at 1500 DEG C, adopts that water-cooling pattern is cooling obtains the closed-cell aluminum foam that mean pore size 5-7mm, relative density are 80%.
Claims (3)
1. a method of making closed-cell aluminum foam, is characterized in that: after aluminum or aluminum alloy fusing, add calcium and barium carbonate particle to stir, then thermal insulation foaming, the last cooling closed-cell aluminum foam that obtains fast.
2. a kind of method of making closed-cell aluminum foam as claimed in claim 1, it is characterized in that the whipping agent of preparing closed-cell aluminum foam adopts barium carbonate, each component ratio is: calcium is 3wt.%-7wt.%, barium carbonate is 3wt.%-9wt.%, surplus is aluminum or aluminum alloy, and the granularity of barium carbonate is 600-1000 order.
3. a kind of method of making closed-cell aluminum foam as claimed in claim 1, is characterized in that at 800 DEG C, stirring 30min with 1000rpm-3000rpm in agitation phases, and thermal insulation foaming 45min at 1500 DEG C, adopts water-cooling pattern at cooling stages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263686.3A CN104018021A (en) | 2014-06-16 | 2014-06-16 | Method for preparing closed-cell aluminum foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263686.3A CN104018021A (en) | 2014-06-16 | 2014-06-16 | Method for preparing closed-cell aluminum foam |
Publications (1)
| Publication Number | Publication Date |
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| CN104018021A true CN104018021A (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410263686.3A Pending CN104018021A (en) | 2014-06-16 | 2014-06-16 | Method for preparing closed-cell aluminum foam |
Country Status (1)
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| CN (1) | CN104018021A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708201A (en) * | 2015-03-13 | 2015-06-17 | 程涛 | Low-energy-consumption welding method for foamed aluminum with super-lager cross section |
| CN105624453A (en) * | 2016-01-18 | 2016-06-01 | 程涛 | Method for preparing blind hole foamed aluminum by adding catalyst |
| CN106670465A (en) * | 2017-01-21 | 2017-05-17 | 杨林 | Preparation method of closed-cell foamed aluminum material |
| CN106670466A (en) * | 2017-01-21 | 2017-05-17 | 杨林 | Preparation method of foamed aluminum |
| CN108149050A (en) * | 2018-02-10 | 2018-06-12 | 谢新昇 | A kind of preparation method of closed-cell foam aluminium alloy |
| CN112746192A (en) * | 2020-12-17 | 2021-05-04 | 北京科技大学 | Foaming agent, preparation method thereof and method for preparing foamed aluminum or aluminum alloy |
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| US4713277A (en) * | 1985-07-19 | 1987-12-15 | Agency Of Industrial Science And Technology | Foamed metal and method of producing same |
| CN101205580A (en) * | 2007-12-07 | 2008-06-25 | 东南大学 | Low-porosity aluminum-magnesium-calcium rear earth based cellular Al alloy foam and preparation thereof |
| CN101208443A (en) * | 2005-04-29 | 2008-06-25 | 美铝公司 | Method for producing foamed aluminum using carbonates |
| CN101473055A (en) * | 2006-07-06 | 2009-07-01 | 洛特斯合金有限公司 | Method for manufacturing porous body |
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2014
- 2014-06-16 CN CN201410263686.3A patent/CN104018021A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4713277A (en) * | 1985-07-19 | 1987-12-15 | Agency Of Industrial Science And Technology | Foamed metal and method of producing same |
| CN101208443A (en) * | 2005-04-29 | 2008-06-25 | 美铝公司 | Method for producing foamed aluminum using carbonates |
| CN101473055A (en) * | 2006-07-06 | 2009-07-01 | 洛特斯合金有限公司 | Method for manufacturing porous body |
| CN101205580A (en) * | 2007-12-07 | 2008-06-25 | 东南大学 | Low-porosity aluminum-magnesium-calcium rear earth based cellular Al alloy foam and preparation thereof |
Non-Patent Citations (3)
| Title |
|---|
| 姚广春等: "《先进材料制备技术》", 31 December 2006, article "熔体直接发泡法制备多孔金属材料技术", pages: 41 * |
| 林汉同: "《日本现代铸造技术》", 30 April 1990, article "泡沫金属的制造性质和用途", pages: 559 * |
| 许庆彦等: "多孔金属的制备工艺方法综述", 《铸造》, vol. 54, no. 9, 30 September 2005 (2005-09-30), pages 841 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708201A (en) * | 2015-03-13 | 2015-06-17 | 程涛 | Low-energy-consumption welding method for foamed aluminum with super-lager cross section |
| CN105624453A (en) * | 2016-01-18 | 2016-06-01 | 程涛 | Method for preparing blind hole foamed aluminum by adding catalyst |
| CN106670465A (en) * | 2017-01-21 | 2017-05-17 | 杨林 | Preparation method of closed-cell foamed aluminum material |
| CN106670466A (en) * | 2017-01-21 | 2017-05-17 | 杨林 | Preparation method of foamed aluminum |
| CN106670465B (en) * | 2017-01-21 | 2018-06-19 | 杨林 | A kind of preparation method of closed-cell aluminum foam |
| CN108149050A (en) * | 2018-02-10 | 2018-06-12 | 谢新昇 | A kind of preparation method of closed-cell foam aluminium alloy |
| CN112746192A (en) * | 2020-12-17 | 2021-05-04 | 北京科技大学 | Foaming agent, preparation method thereof and method for preparing foamed aluminum or aluminum alloy |
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Application publication date: 20140903 |