CN103128898B - Vacuum foamed material preparation method - Google Patents
Vacuum foamed material preparation method Download PDFInfo
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- CN103128898B CN103128898B CN201310065085.7A CN201310065085A CN103128898B CN 103128898 B CN103128898 B CN 103128898B CN 201310065085 A CN201310065085 A CN 201310065085A CN 103128898 B CN103128898 B CN 103128898B
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- foamed material
- supporter
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- mould
- vacuum
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a vacuum foamed material preparation method, which comprises the following steps: A) selecting a material with melting point higher than the casting temperature of a foamed material matrix to prepare a hollow support body, wherein the burr is distributed at the external surface of the support body, performing vacuum-pumping in the support body; B) dumping the support body in a die, uniformly shaking for freely stacking the support body in the die, after the internal space of the die is full of the support bodies, using a screen mesh to block a die opening; C) casting the foamed material matrix in the die, and opening the die to obtain the vacuum foamed material. The vacuum foamed material preparation method can accurately control the hole size, shape and wall thickness of the foamed material. The foamed material has the advantages of difficult deformation and convenient processing.
Description
Technical field
The present invention relates to a kind of preparation method of vacuum foam material.
Background technology
Foamed material is a kind of porous material, has the advantages such as low-density, energy-absorbing, sound-absorbing, structural damping performance, high specific stiffness.Foamed material can be divided into metal foaming material, foam glass and polymeric foamed material three major types haply.Up to the present, prepare foamed material method and be divided into solid metallic sintering process, liquid metal solidification method, sedimentation three major types according to the state in preparation process.Liquid metal solidification method is divided into again Melt Direct Foaming, Gas Injection Method, flux foaming agent method etc.; Solid metallic sintering process is divided into powder metallurgic method, the powder slurry method of forming, sintering and dissolution process, micro-sintering process; Metaliding is divided into electrodeposition process, gas evaporation sedimentation, sputter deposited method.Above method all cannot realize hole, the accurate control of wall thickness dimension and the vacuum state of foam hole to foamed material.Although investment casting and simplex method can basic controlling apertures, but still can not realize the control of wall thickness and vacuum hole, and its program is also more loaded down with trivial details.
Summary of the invention
The object of the present invention is to provide wall thickness between a kind of empty size, shape and the foamed material hole that can precisely control foamed material, the preparation method of the on-deformable vacuum foam material that is suitable for metal or polymeric foamed material of matrix material.
The object of the present invention is achieved like this: a kind of preparation method of vacuum foam material, carries out in accordance with the following steps:
The preparation of A, supporter: select fusing point to prepare hollow support body higher than the material of foamed material matrix material cast temperature, the outer surface of described supporter is distributed with flash, will vacuumize in supporter;
B, supporter is poured in mould, concussion shakes up, and makes supporter free stacking in mould, piles with mould inside space, blocks mould mouth with screen cloth;
C, to the foamed material matrix material of casting in mould, die sinking obtains vacuum foam material.
Adopt technique scheme, the size of supporter can be controlled the bore hole size of foamed material, shape.Wall thickness between the length control foamed material hole of the flash on supporter, the foam hole state that is evacuated, like this, it being heat-treated or when cold treatment, can not producing and expand with heat and contract with cold, makes its distortion thereby can not produce stress to matrix material.Once-forming of the present invention, easy to process.
In technique scheme: described supporter is spherical shape or capsule shape or regular polygon shape.In technique scheme: described foamed material is metal foaming material or polymeric foamed material.
In technique scheme: described foamed material matrix material is aluminium or bisphenol A type epoxy resin.
In technique scheme: the material of described supporter is copper or iron and steel or aluminium.
Beneficial effect: the preparation method of vacuum foam material provided by the invention can control the bore hole size of foamed material, shape, wall thickness accurately.Foamed material is not yielding, easy to process.
Brief description of the drawings
Fig. 1 is the structural representation of the supporter of the embodiment of the present invention 1;
Fig. 2 is the schematic diagram that embodiments of the invention 1 are prepared vacuum foam material.
In figure, each label represents respectively: 1 supporter, 1a flash, 2 foamed material matrixes, 3 moulds, 4 steam vents, 5 screen clothes.
Detailed description of the invention
Embodiment 1
1, the preparation of supporter: select copper (1083 DEG C of fusing points) to prepare spherical shape supporter 1 (as shown in Figure 1), the outer surface of described spherical shape supporter 1 is provided with flash 1a, will vacuumize in spherical shape supporter 1;
2, as shown in Figure 2, spherical shape supporter 1 is poured in mould 3, concussion shakes up, and makes spherical shape supporter 1 at the interior free stacking of mould 3, piles with mould 3 inner spaces, blocks mould mouth with screen cloth 5;
3, to the foamed material matrix materials of aluminum of casting in mould 3, obtain foamed material matrix 2, cast temperature 650-700 DEG C, die sinking, heat-treats, and sanding and polishing, after obtain vacuum foam material.
Embodiment 2
1, the preparation of supporter: select iron and steel (fusing point is more than 1500 DEG C) to prepare capsule shape supporter, the outer surface of described capsule shape supporter is provided with flash, will vacuumize in capsule shape supporter;
2, capsule shape supporter is poured in mould, concussion shakes up, and makes capsule shape supporter free stacking in mould, piles with mould inside space, blocks mould mouth with screen cloth;
3, to the foamed material matrix materials of aluminum of casting in mould 3, obtain foamed material matrix, cast temperature 650-700 DEG C, die sinking, heat-treats, and sanding and polishing, after obtain vacuum foam material.
Embodiment 3
1, the preparation of supporter: select aluminium (660 DEG C of fusing points) or magnesium (649 DEG C of fusing points) to prepare positive tetrahedron supporter, the outer surface of described positive tetrahedron supporter is provided with flash, will vacuumize in positive tetrahedron supporter;
2, positive tetrahedron supporter is poured in mould, concussion shakes up, and makes positive tetrahedron supporter free stacking in mould, piles with mould inside space, blocks mould mouth with screen cloth;
3, to the foamed material matrix material bisphenol A type epoxy resin of casting in mould 3, obtain foamed material matrix, 58～93 DEG C of cast temperatures, die sinking, heat-treats, and sanding and polishing, after obtain vacuum foam material.
Claims (5)
1. a preparation method for vacuum foam material, is characterized in that: carry out in accordance with the following steps:
The preparation of A, supporter: select fusing point to prepare hollow support body higher than the material of foamed material matrix material cast temperature, the outer surface of described supporter is distributed with flash, will vacuumize in supporter;
B, supporter is poured in mould, concussion shakes up, and makes supporter free stacking in mould, piles with mould inside space, blocks mould mouth with screen cloth;
C, to the foamed material matrix material of casting in mould, die sinking obtains vacuum foam material.
2. the preparation method of vacuum foam material according to claim 1, is characterized in that: described supporter is spherical shape or capsule shape or regular polygon shape.
3. the preparation method of vacuum foam material according to claim 1, is characterized in that: described foamed material is metal foaming material or polymeric foamed material.
4. the preparation method of vacuum foam material according to claim 3, is characterized in that: described foamed material matrix material is aluminium or bisphenol A type epoxy resin.
5. the preparation method of vacuum foam material according to claim 4, is characterized in that: the material of described supporter is copper or iron and steel or aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065085.7A CN103128898B (en) | 2013-03-01 | 2013-03-01 | Vacuum foamed material preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065085.7A CN103128898B (en) | 2013-03-01 | 2013-03-01 | Vacuum foamed material preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103128898A CN103128898A (en) | 2013-06-05 |
| CN103128898B true CN103128898B (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310065085.7A Expired - Fee Related CN103128898B (en) | 2013-03-01 | 2013-03-01 | Vacuum foamed material preparation method |
Country Status (1)
| Country | Link |
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| CN (1) | CN103128898B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19747645A1 (en) * | 1997-10-29 | 1999-05-06 | Behr Gmbh & Co | Process for producing a foam body and foam body |
| CN100366365C (en) * | 2006-04-17 | 2008-02-06 | 合肥工业大学 | Close-pore foamed metal element with hollow ceramic and method for preparing the same |
| CN100469921C (en) * | 2006-12-15 | 2009-03-18 | 中国科学院长春应用化学研究所 | Prepn process of pore forming agent for porous magnesium alloy and porous aluminium and its pore forming method |
| CN101736176A (en) * | 2010-02-09 | 2010-06-16 | 宋培荣 | Foam metal or non-metal material and making method thereof |
| CN102146532B (en) * | 2011-03-15 | 2013-02-27 | 中国科学院合肥物质科学研究院 | Preparation method of composite spherical porous aluminum |
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2013
- 2013-03-01 CN CN201310065085.7A patent/CN103128898B/en not_active Expired - Fee Related
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| CN103128898A (en) | 2013-06-05 |
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