CN103614587A - Cell-shaped foam titanium of spherical hole structure - Google Patents
Cell-shaped foam titanium of spherical hole structure Download PDFInfo
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- CN103614587A CN103614587A CN201310643386.3A CN201310643386A CN103614587A CN 103614587 A CN103614587 A CN 103614587A CN 201310643386 A CN201310643386 A CN 201310643386A CN 103614587 A CN103614587 A CN 103614587A
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Abstract
The invention relates to novel cell-shaped foam titanium. The novel cell-shaped foam titanium is characterized in that holes of a product are spherical, the spherical holes are uniformly distributed, and the sizes of the holes are millimeter levels; the holes are regular spherical structures and are uniformly distributed, and thus the product has the good isotropy property; a preparation technology is regulated according to the need, so that the closed spherical hole structure is obtained, and the spherical hole structure of an opening is also obtained; the product is superior to the foamed aluminum at aspects such as the operating temperature and strength, the closed hole product is suitable for a high-property light metal structure, and the opening hole product is suitable for the high-property voice absorbing structure.
Description
Technical field:
The present invention relates to POROUS TITANIUM, relate in particular to a kind of born of the same parents' shape titanium foam of spherical void structure.
Background technology:
The quality of titanium is light, density is little, and specific tenacity is high, good biocompatibility, and in the earth's crust, there is abundant content.POROUS TITANIUM is that it has a large amount of internal voids and less apparent density with respect to the notable feature of fine and close titanium material, and specific surface area is large, energy absorption is good, higher than mechanical property, so POROUS TITANIUM is widely used in the industries such as aerospace, petrochemical complex, metallurgical machinery, biotechnology, nuclear power, electrochemistry, medicine, environmental protection.
Because the mechanical property of metal titanium is outstanding, volume density is little, chemical stability is high, resistance to corrosion is strong, so titanium foam has many potential purposes, as the structured material as aspects such as aerospace equipment and submarine members.In addition, the fusing point of metal titanium is far above metallic aluminium, so the use temperature of titanium foam can substantially exceed foamed aluminium.With respect to foamed aluminium, titanium foam alloy demonstrates its unique application prospect in some fields, such as having more high temperature resistant than foamed aluminium at aerospace field and intensity is higher and the advantage of the aspect such as weldability.
Existing titanium foam is by there being the techniques such as fiber sintering method, melt casting method, compression-expansion method, foam impregnation method, self propagating high temperature synthesis method, powder sintering to prepare, they or mesh products, although or be born of the same parents' shape goods, but its pore shape is difficult to rule and even, and pore dimension dispersity is larger.The present invention's employing born of the same parents' shape titanium foam that the processing method of research is made is voluntarily the well-regulated spherical void structure of tool, the distribution of sizes of these spherical voids is also quite concentrated, have than the more superior structure of other titanium foam goods and performance, be expected to obtain more effectively and more crucial application.
The spherical void born of the same parents shape titanium foam goods that propose for this patent, adopt and the similar process of preparing of embodiment, also can obtain the foams of other metal species with this structure, the metal species wherein adapting to is as aluminium and aluminium alloy, copper alloy, iron alloy etc.
Reference:
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[15]Meneghini?R?M，Meyer?C，Buckley?C?A，et?al.Mechanical?stability?of?novel?highly?porous?metal?acetabular?components?in?revision?total?hip?arthroplasty.Journal?of?Arthroplasty,2010，25(3)：337-341.
[16]Nugroho?A?W，Leadbeater?G，Davies?I?J.Processing?of?a?porous?titanium?alloy?from?elemental?powders?using?a?solid?state?isothermal?foaming?technique.Journal?of?Materials?Science-Materials?in?Medicine，2010，21(12)：3103-3107.
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Summary of the invention:
The object of the present invention is to provide a kind of novel born of the same parents' shape titanium foam (Fig. 1).It is characterized in that: the hole (Fig. 2) spherical in shape of this porous article, these spherical voids are evenly distributed, and pore dimension is grade.Regulate as required preparation technology, goods hole can be closing structure, between hole, is mutually isolated; Also can be hatch frame, between hole, be interconnected.Because hole is regular globosity, and be evenly distributed, so this product has good isotropic nature.Because the fusing point of metal titanium is far above metallic aluminium, that titanium alloy has is more high temperature resistant than aluminium alloy, intensity is higher and the advantage of the aspect such as weldability, therefore titanium foam is expected the occasion replacement foamed aluminium higher in use temperature, desired strength is larger, as special light-weight metal structure.In addition, due to the well-regulated spherical void structure of born of the same parents' shape titanium foam tool of the present invention, and the distribution of sizes of these spherical voids is also quite concentrated, therefore have than the more superior structure of other titanium foam goods and performance, be expected to obtain more effectively and more crucial application.
Accompanying drawing explanation:
The optical photograph of Fig. 1 titanium foam goods of the present invention, has shown born of the same parents' shape vesicular structure with spherical void.
The optical photograph of Fig. 2 titanium foam pore appearance of the present invention, has shown regular spherical void structure.
Embodiment:
Embodiment: adopt special pyrolytic decomposition spheroidal particle pore-forming material to make prefabrication type in mould: while preparing opening spherical void born of the same parents shape porous insert, directly that spheroidal particle pore-forming material accumulation body is hot-forming in mould; While preparing closed spherical void born of the same parents shape porous insert, first spheroidal particle pore-forming material is evenly mixed with the appropriate titanium alloy particle of suitable granularity, then mixed-stacking body is hot-forming in mould; Hot pressing temperature is controlled at below the decomposition temperature of pore-forming material, and the bonding strength of prefabrication type inside is by hot pressing temperature and hot pressing time dual regulation.Then utilize the specific equipment of designed, designed, by prefabrication type quick seepage flow melts of titanium alloy in mould, under the condition of coordinating mutually in pore-forming material decomposition rate and alloy melt setting rate, just can obtain the spherical void born of the same parents shape titanium foam goods of expection.In preparation process, the adjusting of the temperature of mould plays a part crucial.The spherical void born of the same parents shape titanium foam goods example of Fig. 1 for making by this method, Fig. 2 is the pore appearance of corresponding porous insert.
Claims (1)
1. born of the same parents' shape titanium foam, is characterized in that: the hole of this porous article is spherical in shape, and hole can be closed, can be also opening, and pore dimension is in millimetre-sized level; Goods have good isotropic nature, be expected the harsher occasion replacement foamed aluminiums of condition such as higher in use temperature, desired strength is larger, wherein closed hole goods are as high performance light-weight metal structure, and open pores goods are as high performance acoustic absorption structure.
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| CN201310643386.3A CN103614587A (en) | 2013-12-05 | 2013-12-05 | Cell-shaped foam titanium of spherical hole structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108963269A (en) * | 2018-06-26 | 2018-12-07 | 江苏华富储能新技术股份有限公司 | A kind of preparation method of process for positive slab lattice of lead-acid accumulator |
| CN112548099A (en) * | 2020-06-05 | 2021-03-26 | 华南理工大学 | Method for preparing near-spherical pore porous alloy by using ammonium bicarbonate as pore-forming agent |
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| JP2010163636A (en) * | 2009-01-13 | 2010-07-29 | Mitsubishi Materials Corp | Porous titanium sheet small in contact resistance and method for producing the porous titanium sheet |
| JP2011041640A (en) * | 2009-08-20 | 2011-03-03 | Inoac Corp | Bone regeneration medical material |
| CN102876908A (en) * | 2012-09-28 | 2013-01-16 | 重庆大学 | Method for improving density of foam titanium |
| CN103131883A (en) * | 2013-03-04 | 2013-06-05 | 重庆大学 | Preparation method of titanium foam used for cortical bone |
| CN103205592A (en) * | 2013-04-12 | 2013-07-17 | 重庆大学 | Preparation method of titanium foams for cancellous bone |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010163636A (en) * | 2009-01-13 | 2010-07-29 | Mitsubishi Materials Corp | Porous titanium sheet small in contact resistance and method for producing the porous titanium sheet |
| JP2011041640A (en) * | 2009-08-20 | 2011-03-03 | Inoac Corp | Bone regeneration medical material |
| CN102876908A (en) * | 2012-09-28 | 2013-01-16 | 重庆大学 | Method for improving density of foam titanium |
| CN103131883A (en) * | 2013-03-04 | 2013-06-05 | 重庆大学 | Preparation method of titanium foam used for cortical bone |
| CN103205592A (en) * | 2013-04-12 | 2013-07-17 | 重庆大学 | Preparation method of titanium foams for cancellous bone |
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| 牛文娟等: "《泡沫钛及其合金制备方法研究进展》", 《粉末冶金技术》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963269A (en) * | 2018-06-26 | 2018-12-07 | 江苏华富储能新技术股份有限公司 | A kind of preparation method of process for positive slab lattice of lead-acid accumulator |
| CN112548099A (en) * | 2020-06-05 | 2021-03-26 | 华南理工大学 | Method for preparing near-spherical pore porous alloy by using ammonium bicarbonate as pore-forming agent |
| CN112548099B (en) * | 2020-06-05 | 2022-03-29 | 华南理工大学 | Method for preparing near-spherical pore porous alloy by using ammonium bicarbonate as pore-forming agent |
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Application publication date: 20140305 |