CN203972863U - A kind of sectional mould for discharge plasma sintering - Google Patents
A kind of sectional mould for discharge plasma sintering Download PDFInfo
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- CN203972863U CN203972863U CN201420366126.6U CN201420366126U CN203972863U CN 203972863 U CN203972863 U CN 203972863U CN 201420366126 U CN201420366126 U CN 201420366126U CN 203972863 U CN203972863 U CN 203972863U
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- die sleeve
- interior die
- muff
- discharge plasma
- casing
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Abstract
The utility model discloses a kind of sectional mould for discharge plasma sintering, comprising: pressure head, interior die sleeve, outer die casing, muff; Described outer die casing and interior die sleeve are torus, and outer die casing gapless is socketed in the outer wall of interior die sleeve; Described interior die sleeve is formed by least two internal mold grip assembly seamless connectivities; Described internal mold grip assembly is separate, can split and replace; The space that the inwall of described interior die sleeve surrounds forms inside cavity; Described pressure head is divided into seaming chuck and push-down head, is pressed into described inside cavity respectively from the two ends of interior die sleeve; Between described seaming chuck and push-down head and described inner membrance chamber, formed cavity is sintering zone; Described muff is wrapped in the outside of described outer die casing, and described muff and outer die casing offer thermometer hole at same position.The technical scheme that the utility model provides can avoid making because of bonding phenomenon mould to damage even whole generation of scrapping, and has reduced the preparation cost of discharge plasma sintering process, has improved production efficiency.
Description
Technical field
A kind of mould for discharging plasma sintering equipment of the utility model.
Background technology
Discharge plasma sintering utilizes pulse energy, discharge pulse pressure and a joule thermogenetic TRANSIENT HIGH TEMPERATURE field to realize the sintering of sample because have that heating rate is fast, sintering time is short, density is high, uniform crystal particles and institutional framework is controlled and the plurality of advantages such as energy-conserving and environment-protective, efficient low energy.Discharge plasma sintering has become the novel advanced person's who prepares metal, pottery, composite and nano bulk material, amorphous block material, functionally gradient material (FGM) etc. Fast Sintering technology.
Discharge plasma sintering process is that material powder is packed into and in mould, utilizes upper and lower stamping and powered electrode that pulse current and sintering pressure are put on to sintered powder to carry out sintering, and therefore, discharge plasma sintering must be used in conjunction with special-purpose mould.Conventional mould is comprised of die sleeve and upper and lower pressure head, and sintered powder packs in the die cavity of die sleeve, and in utilization, push-down head is exerted pressure and carried out discharge plasma sintering powder.Because sintering temperature and the pressure of discharge plasma sintering are conventionally larger, formula sintered article easily occurs boning with the contact-making surface of mould intracavity wall and pressure head and the demoulding is difficult, serious bonding, even small size, the damage that also can cause mould even integral body is scrapped, the use cost that this has increased mould undoubtedly, has reduced production efficiency.
Utility model content
Technical problem underlying to be solved in the utility model is to provide a kind of mould for discharging plasma sintering equipment, can avoid making because of bonding phenomenon mould to damage even whole generation of scrapping, the preparation cost that has reduced discharge plasma sintering process, has improved production efficiency.
In order to solve above-mentioned technical problem, the utility model provides a kind of sectional mould for discharge plasma sintering, it is characterized in that comprising: pressure head, interior die sleeve, outer die casing, muff;
Described outer die casing and interior die sleeve are torus, and outer die casing gapless is socketed in the outer wall of interior die sleeve; Described interior die sleeve is formed by least two internal mold grip assembly seamless connectivities; Described internal mold grip assembly is separate, can split and replace; The space that the inwall of described interior die sleeve surrounds forms inside cavity;
Described pressure head is divided into seaming chuck and push-down head, is pressed into described inside cavity respectively from the two ends of interior die sleeve; Between described seaming chuck and push-down head and described inside cavity, formed cavity is sintering zone;
Described muff is wrapped in the outside of described outer die casing, and described muff and outer die casing offer thermometer hole at same position.
In a preferred embodiment: the material of described pressure head, interior die sleeve, outer die casing is graphite.
In a preferred embodiment: the material of described insulation muff is alumina-silicate ceramic fibre.
In a preferred embodiment: the shape of described internal mold grip assembly, size are all identical.
Compared to prior art, the technical scheme that the utility model provides possesses following beneficial effect:
1. interior die sleeve is formed by least two internal mold grip assembly seamless connectivities, and internal mold grip assembly is independent of one another, and can dismantle.Like this when carrying out the demoulding, without by external force, only need be by internal mold grip assembly and seaming chuck, push-down head dismounting is separated can take out sample.Greatly simplified knockout course, prevented because of the external force demoulding and mold damage.
2. internal mold Analysis of Nested Design becomes to be formed by least two internal mold grip assembly seamless connectivities, and the shape of internal mold grip assembly, big or small identical.So can produce as standard component, there is bonding and while damaging, only need this internal mold grip assembly dismounting and change in internal mold grip assembly and sample therein, and remaining internal mold grip assembly can continue use.Improve the service life of mould, reduced the use cost of mould.
3. the muff of going out to have wrapped up of outer die casing, effectively prevents that the heat in sintering process scatters and disappears in a large number, and the temperature in mould is uniformly distributed, and is conducive to improve sintering quality, and the design of thermometer hole can guarantee the accuracy that mold temperature is measured.
Accompanying drawing explanation
Fig. 1 is the structure explosive view of the utility model preferred embodiment;
Fig. 2 is the schematic perspective view of the utility model preferred embodiment;
Fig. 3 is the top view of the utility model preferred embodiment.
The specific embodiment
Below in conjunction with the accompanying drawings and embodiments the utility model is described further.
With reference to figure 1-3, a kind of sectional mould for discharge plasma sintering, comprising: pressure head 1, interior die sleeve 2, outer die casing 3, muff 4;
Described outer die casing 3 is torus with interior die sleeve 2, and outer die casing 3 gaplesss are socketed in the outer wall of interior die sleeve 2; Described interior die sleeve 2 is formed by least two internal mold grip assembly 21 seamless connectivities; Described internal mold grip assembly 21 is separate, can split and replace; The space that the inwall of described internal mold grip assembly 21 surrounds forms inside cavity;
Described pressure head 1 is divided into seaming chuck 11 and push-down head 12, is pressed into described inside cavity respectively from the two ends of interior die sleeve 2; Between described seaming chuck and push-down head, formed cavity is sintering zone 6;
Described muff 4 is wrapped in the outside of described outer die casing 3, and described muff 4 offers thermometer hole 5 with outer die casing 3 at same position.
In the present embodiment, the material of described pressure head 1, interior die sleeve 2, outer die casing 3 is graphite.The material of described muff 4 is alumina-silicate ceramic fibre.
In the present embodiment: the quantity of described internal mold grip assembly is preferably 4, and the shape of described internal mold grip assembly, size are all identical.
A kind of sectional mould for discharge plasma sintering that the present embodiment provides, its course of work is as follows:
With muff 4, wrap outer die casing 3, and guarantee both insulation hole 5 aligned in position, by die sleeve 2 in 4 internal mold grip assembly 21 mix proportions and embed in outer die casing 3, push-down head 12 is first pressed in inside cavity from interior die sleeve 2 bottoms, then powder stock is put into sintering zone 6 from interior die sleeve 3 upper ends, seaming chuck 11 is pressed into from interior die sleeve 3 upper ends again, it should be noted before packing powder stock into, the outer wall of sintering zone 6 need apply boron nitride or pad graphite paper so that powder stock and mould separate.After above-mentioned steps is ready to, mould is placed in discharging plasma sintering equipment, adjust die location to guarantee that thermometer hole 5 aligns with the peep hole of device temperature measuring instrument, guarantee the good contact of pressure head 1 and agglomerating plant powered electrode simultaneously, select subsequently suitable sintering parameter to carry out discharge plasma sintering; Sintering completes and mold temperature is dropped to after room temperature, takes out unitary mould from equipment, first that outer die casing 3 is separated with unitary mould with muff 4, then splits successively 4 internal mold grip assemblies 21 and pressure head 1, can take out sintered sample.Thereby greatly simplified knockout course, prevented because of the external force demoulding and mold damage.In addition, interior die sleeve 2 is designed to be formed by least two internal mold grip assembly 21 seamless connectivities, and the shape of internal mold grip assembly 21, big or small identical.So can produce as standard component, when an internal mold grip assembly 21 damages with sample generation bonding therein, only need these internal mold grip assembly 21 dismounting and change, remaining internal mold grip assembly 21 can continue use.Improve the service life of mould, reduced the use cost of mould.
The above, it is only utility model preferred embodiment, not the technical scope of utility model is imposed any restrictions, therefore any trickle modification that every foundation technical spirit of the present utility model is done above example, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. for a sectional mould for discharge plasma sintering, it is characterized in that comprising: pressure head, interior die sleeve, outer die casing, muff;
Described outer die casing and interior die sleeve are torus, and outer die casing gapless is socketed in the outer wall of interior die sleeve; Described interior die sleeve is formed by least two internal mold grip assembly seamless connectivities; Described internal mold grip assembly is separate, can split and replace; The space that the inwall of described interior die sleeve surrounds forms inside cavity;
Described pressure head is divided into seaming chuck and push-down head, is pressed into described inside cavity respectively from the two ends of interior die sleeve; Between described seaming chuck and push-down head and described inside cavity, formed cavity is sintering zone;
Described muff is wrapped in the outside of described outer die casing, and described muff and outer die casing offer thermometer hole at same position.
2. a kind of sectional mould for discharge plasma sintering according to claim 1, is characterized in that: the material of described pressure head, interior die sleeve, outer die casing is graphite.
3. a kind of sectional mould for discharge plasma sintering according to claim 1, is characterized in that: the material of described insulation muff is alumina-silicate ceramic fibre.
4. a kind of sectional mould for discharge plasma sintering according to claim 1, is characterized in that: the shape of described internal mold grip assembly, size are all identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366126.6U CN203972863U (en) | 2014-07-03 | 2014-07-03 | A kind of sectional mould for discharge plasma sintering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366126.6U CN203972863U (en) | 2014-07-03 | 2014-07-03 | A kind of sectional mould for discharge plasma sintering |
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| CN203972863U true CN203972863U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420366126.6U Expired - Fee Related CN203972863U (en) | 2014-07-03 | 2014-07-03 | A kind of sectional mould for discharge plasma sintering |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526817A (en) * | 2015-11-09 | 2016-04-27 | 上海卫星装备研究所 | Sintering device and method capable of quantitatively controlling porosity parameters of capillary wick |
| CN107716925A (en) * | 2017-09-27 | 2018-02-23 | 西北工业大学 | A kind of super-pressure anti-slip mould for discharge plasma sintering |
| CN107716926A (en) * | 2017-09-27 | 2018-02-23 | 西北工业大学 | A kind of school temperature mould for discharge plasma sintering |
| CN108748620A (en) * | 2018-05-04 | 2018-11-06 | 中国科学院上海硅酸盐研究所 | A kind of resistance sintering mold |
| CN109158595A (en) * | 2018-08-16 | 2019-01-08 | 东莞华晶粉末冶金有限公司 | A kind of method of compression moulding portable mold and products thereof compression moulding |
| CN109465449A (en) * | 2019-01-07 | 2019-03-15 | 哈尔滨工业大学 | A kind of beneficial friction Fast Sintering forming method of larger ratio of height to diameter hard alloy cutter |
| CN109663911A (en) * | 2019-01-07 | 2019-04-23 | 哈尔滨工业大学 | A kind of hard alloy 3-edge surgical knife tool thermal sintering integrated mould and preparation method |
| CN110756799A (en) * | 2019-11-29 | 2020-02-07 | 安徽工业大学 | Foamed aluminum foaming precursor mould pressing preparation facilities |
| WO2022042467A1 (en) * | 2020-08-31 | 2022-03-03 | 深圳大学 | Preparation method for amorphous micro-nano structure, and hot-press forming device |
-
2014
- 2014-07-03 CN CN201420366126.6U patent/CN203972863U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526817A (en) * | 2015-11-09 | 2016-04-27 | 上海卫星装备研究所 | Sintering device and method capable of quantitatively controlling porosity parameters of capillary wick |
| CN107716925B (en) * | 2017-09-27 | 2019-07-05 | 西北工业大学 | A kind of super-pressure anti-slip mold for discharge plasma sintering |
| CN107716925A (en) * | 2017-09-27 | 2018-02-23 | 西北工业大学 | A kind of super-pressure anti-slip mould for discharge plasma sintering |
| CN107716926A (en) * | 2017-09-27 | 2018-02-23 | 西北工业大学 | A kind of school temperature mould for discharge plasma sintering |
| CN107716926B (en) * | 2017-09-27 | 2019-07-05 | 西北工业大学 | A kind of school temperature mold for discharge plasma sintering |
| CN108748620A (en) * | 2018-05-04 | 2018-11-06 | 中国科学院上海硅酸盐研究所 | A kind of resistance sintering mold |
| CN109158595A (en) * | 2018-08-16 | 2019-01-08 | 东莞华晶粉末冶金有限公司 | A kind of method of compression moulding portable mold and products thereof compression moulding |
| CN109663911A (en) * | 2019-01-07 | 2019-04-23 | 哈尔滨工业大学 | A kind of hard alloy 3-edge surgical knife tool thermal sintering integrated mould and preparation method |
| CN109465449A (en) * | 2019-01-07 | 2019-03-15 | 哈尔滨工业大学 | A kind of beneficial friction Fast Sintering forming method of larger ratio of height to diameter hard alloy cutter |
| CN109465449B (en) * | 2019-01-07 | 2020-06-09 | 哈尔滨工业大学 | Beneficial friction rapid sintering forming method for hard alloy cutter with large height-diameter ratio |
| CN109663911B (en) * | 2019-01-07 | 2020-10-02 | 哈尔滨工业大学 | Cemented carbide three-edge tool sintering and forming integrated die and preparation method |
| CN110756799A (en) * | 2019-11-29 | 2020-02-07 | 安徽工业大学 | Foamed aluminum foaming precursor mould pressing preparation facilities |
| WO2022042467A1 (en) * | 2020-08-31 | 2022-03-03 | 深圳大学 | Preparation method for amorphous micro-nano structure, and hot-press forming device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20180703 |