CN102389750B - Ultra-high pressure device based on hinged-type hexahedral press - Google Patents
Ultra-high pressure device based on hinged-type hexahedral press Download PDFInfo
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- CN102389750B CN102389750B CN 201110293668 CN201110293668A CN102389750B CN 102389750 B CN102389750 B CN 102389750B CN 201110293668 CN201110293668 CN 201110293668 CN 201110293668 A CN201110293668 A CN 201110293668A CN 102389750 B CN102389750 B CN 102389750B
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Abstract
The invention discloses an ultra-high pressure device based on a hinged-type hexahedral press and belongs to the technical field of ultra-hard material synthesis equipment. The ultra-high pressure device structurally comprises six press anvils (1) which are synchronously driven by a hexahedral press, a cubic synthesis block (3) and pressurization anvils (5) arranged between press anvil faces (2) and the plane of the synthesis block (3). The invention is characterized in that the ltra-high pressure device further comprises a cubic support frame (4) which is formed by assembly of four pressurization anvil holders (6), each pressurization anvil holder (6) is formed by three columns which are perpendicular to one another, and the pressurization anvils (5) can pass through the six planes of the cubic support frame (4) and move in the axial direction of the pressurization anvils (5) to apply a pressure to the synthesis block (3) or relieve the pressure of the synthesis block (3). The invention has the biggest advantage as follows: the six pressurization anvils (5) can be assembled on the cubic support frame (4) very easily and can be used directly without needing setting-up or alignment; the installation and set-up are rapid and accurate; and the time is saved.
Description
Technical field
The invention belongs to the technical field of film ultra-hard material synthesizer, the device of the quiet high pressure of generation that particularly uses in a kind of hinge type hexahedron hydraulic press.
Background technology:
High temperature and high pressure environment is to carry out artificial necessary condition of synthesizing superhard materials such as making diamond, cubic boron nitride (cBN) and the research of relevant high-pressure science.The large quiet high-pressure installation of cavity is the capital equipment that produces high temperature and high pressure environment.In the polyhedron high-pressure installation, hinge type hexahedron press device has hexahedron and presses the chamber, compact conformation, and processing and installation are relatively simple, and cost is also relatively cheap.This equipment has been widely used in China superhard material Industry at present, is the main production equipments that China becomes the superhard material great industry nation.Along with the progress of industrial technology level, the design of hexahedron press and level made in one piece significantly improve, and the hexahedron press is constantly to the maximization future development.The continuous large-scale preparation that turns to high-grade superhard material and goods thereof of press provides technical guarantee.Yet the technology of using in existing equipment can obtain maximum pressure is about 7Gpa.This technology can not satisfy the needs of high-pressure science, geoscience and material science development.The Synchrotron Radiation Technology that development in recent years is got up is for high-pressure science research provides a brand-new technology platform.Utilize at present the high pressure technique of the structure of matter and character under the Synchrotron Radiation Study high pressure mainly take the diamond anvil cell technology as main.This technology can obtain the above pressure of 100GPa.But the shortcoming of this technology is: sample chamber is less, in the micron number magnitude.Situ high pressure experimental technique or the blank out of large cavity.
In the polyhedron high-pressure installation of high-pressure chamber greater than 10GPa, mainly contain the DIA cubic apparatus, based on the hexahedron press device of top, two sides framework, based on the secondary six of top, two sides framework-large quiet high-pressure installation of cavity of octahedron.In cubic apparatus, adopt carbide alloy (WC) pressure anvil or diamond, cubic boron nitride sintered body as pressing anvil, the cavity maximum pressure can reach 15Gpa.In six-octahedra device, adopt tungsten carbide (WC) to press the anvil material as the octahedra supercharging in the second level, chamber pressure can be up to 30Gpa.Because chamber pressure is higher, this technique device has been widely used in the world high-caliber quiet High-Voltage Experimentation chamber.Compare with hinge type hexahedron press technology, DIA cubic apparatus, based on the hexahedron press device of top, two sides framework need to be converted to axial compressive force the pressure of six direction, complex structure, the shortcomings such as the pressure conversion efficiency is low, and price is very expensive, and maintenance cost is high.
In recent years, professor He Duanwei grow up based on six of hinge beam type hexahedron press-octahedra quiet high-pressure installation (seeing Chinese patent ZL200710048839.2), chamber pressure can be up to 20Gpa.In this technology, they have adopted equally to be similar to based on the two-stage supercharging in slide block type six-octahedron in the framework of top, two sides and have pressed the anvil material, namely adopt two-stage supercharging to form the octahedra chamber of pressing and produce quiet high pressure.Based on the super-pressure experimental technique of hinge type hexahedron press exploitation, synthetic cavity pressure can be up to 30GPa (seeing Chinese patent CN101912749A).Although these technology can obtain higher high-pressure chamber pressure, there is the technological deficiency of aspects such as pressing anvil installation, debugging, replacing.
Summary of the invention
The technical problem to be solved in the present invention, for having now in the high pressure technique for generation of the deficiency that exists in the large quiet high-pressure installation of cavity, aim to provide a kind of pressure conversion efficient higher, cost is low, high-efficiency low energy consumption, installation and debugging and maintenance work are simpler, for generation of the new device of large-cavity ultrahigh hydrostatic pressure.
Device for generation of quiet high pressure of the present invention is to press in the chamber at the hexahedron of hexahedron press, increases by six superchargings and presses anvil, forms one based on the quiet high-pressure installation of the large cavity of hexahedron of hexahedron press framework.This device comprise by synchronously driven six press of hexahedron press press anvil, six superchargings press anvil, be used for six superchargings of assembling press four of anvils independently supercharging press the synthetic piece of cube of anvil support and in-built synthetic material.Six superchargings are pressed anvil to be placed on four superchargings and are pressed in cube carriage that the anvil bracket assembleds form, and can press the axial direction of anvil (namely to distinguish the direction of six frame faces of vertical cube of carriage in supercharging, also be the direction that the anvil pressurization is pressed in supercharging) move freely, and place the hexahedron press to press in the anvil.In order to guarantee that hexahedron press pressure anvil does not touch supercharging and presses the anvil support, two superchargings press the total length of anvil and the synthetic piece of cube must press greater than supercharging the length of the longest edge of anvil support.In order to guarantee that supercharging presses anvil not to be in contact with one another, the hexahedral surface size that the size of the synthetic piece of cube should press anvil to surround greater than supercharging.In order to obtain higher synthetic cavity pressure, six superchargings press the material of anvils can select a kind of of tungsten carbide, diamond, cubic boron nitride polycrystalline sintered body, perhaps select a kind of in the composite of sintering preparation between them; The assembling supercharging presses the anvil support to adopt hard alloy steel.
Concrete technical scheme of the present invention is as follows:
A kind of ultra-high pressure apparatus based on hinge type hexahedron press, structure have synchronously driven six press of hexahedron press to press the cubical synthetic piece 3 of anvil 1, in-built synthetic material, press the supercharging of placing between the plane of anvil anvil face 2 and synthetic piece 3 to press anvil 5 at press; It is characterized in that, structure also has cube carriage 4, and cube carriage 4 presses anvil supports 6 to assemble by four superchargings, and each supercharging presses anvil support 6 to be made of three orthogonal square columns, and three square columns respectively have a termination to be fixed together; Described supercharging presses anvil 5 to have six, can pass respectively six frame faces of cube carriage 4 and press the axis direction of anvil 5 to move in supercharging, to synthetic piece 3 pressurization or releases.
Anvil 5 is pressed in described supercharging, and the side preferably no longer is the face of cylinder, and the side can be the plane, i.e. it is that square or cross section are the square that lead angle is arranged that the cross section of anvil 5 main bodys is pressed in supercharging, and lead angle can be circular arc, also can be straight line.Each supercharging presses four planar side of anvil 5 to help supercharging to press anvil 5 freely in axial direction mobile in cube carriage 4.
The axial length of two relative supercharging pressure anvils 5 and the length of side sum of the synthetic piece 3 of cube are greater than the outerplanar length of side of cube carriage 4, press anvil 1 not touch cube carriage 4 to guarantee the hexahedron press.
The high-pressure system operation principle of the new device for generation of quiet high pressure of the present invention is massive support principle.Namely support the pressure anvil with the taper plane by a large diameter piston, produce high pressure at the facet of pressing the anvil front end, by transmission medium high pressure is delivered to and produces quiet high pressure in the cavity.At first pressing the anvil sky to advance with supercharging by the hydraulic system driven in synchronism press of hexahedron press presses anvil to contact, press anvil under hydraulic system continues to promote, to continue the extruding supercharging and press anvil, six superchargings press anvil to press in one-level under the promotion of anvil (press pressure anvil) to its cavity compression that surrounds, the synthetic piece of extruding cube, section produces super-pressure within it.Because the hexahedron press presses the size of anvil anvil face to press the total length of anvil and synthetic piece less than two relative superchargings, so the hexahedron press presses anvil can not bump in whole process of advancing.Because supercharging presses anvil to press the anvil stent support by four independent plenums, the surface size of the synthetic piece of cube is pressed the anvil surface length of side greater than supercharging, so supercharging presses anvil mutual collision can not occur in the process of the synthetic piece of whole extruding hexahedron, until the pressure of the synthetic piece of hexahedron reaches predetermined value, carry out pressurize.After testing end, press anvil to be retracted into initial position by the press of hydraulic system driving and can take out supercharging pressure anvil, and then piece is synthesized in taking-up from supercharging pressure anvil.
The hexahedron press of a kind of new device for generation of super-pressure of the present invention and existing DIA swaging machine, top, two sides framework and based on secondary six-octahedron greatly on the quiet ultra-high pressure apparatus of cavity, the hexahedron press ultra-high pressure apparatus etc. compare, major advantage is as follows:
1, device of the present invention can produce the approximately high-temperature and high-pressure conditions of 50GPa, 3000K, and overall performance is superior.
2, quiet high-pressure installation of the present invention has fast aspect installation and debugging, advantage rapidly.Use in the hexahedron press of the different anvil face sizes of pressing applicable to press.A large amount of installations, replacing, debugging pressure anvil time have been saved.
3, quiet high-pressure installation of the present invention has been save the technology that axial pressure is converted to the pressurization of six directions fully, directly realizes superelevation pressure in cavity.From the mechanics angle: do not have pressure loss, improved the conversion efficiency of pressure; From operation angle: reduced the transmittance process of energy, saved the energy; From safeguarding angle: reduced the error rate of equipment, improved the operation stability of equipment, increased the service life of equipment, reduced maintenance personal's workload.
4, quiet high-pressure installation of the present invention can cooperate the technology such as synchrotron radiation light, neutron scattering light, Raman spectrum, infrared spectrum, carries out the research of situ high pressure physical property.
Description of drawings
Fig. 1 is the quiet high-pressure installation schematic diagram of the hexahedron of background technology;
Fig. 2 is the ultra-high pressure apparatus floor map based on hinge type hexahedron press of the present invention;
Fig. 3 is that anvil 5 rigging position schematic diagrames are pressed in of the present invention cube of carriage 4 and supercharging;
To be the present invention press the structure chart of cube carriage 4 that anvil supports 6 are assembled into by four superchargings to Fig. 4;
Fig. 5 is that anvil support 6 shape schematic diagrames are pressed in a supercharging of the present invention;
Fig. 6 is that anvil 5 shape schematic diagrames are pressed in supercharging of the present invention.
The specific embodiment
New device for generation of quiet high pressure of the present invention is based on the quiet high-pressure installation of the large cavity of hexahedron of the hexahedron press framework (its structure as shown in Figure 1) of hinge type framework.
Ultra-high pressure apparatus floor map based on hinge type hexahedron press of the present invention as shown in Figure 2.In Fig. 1,2,1 is press pressure anvil, is to press anvil by the hydraulically powered carbide alloy of hexahedron press, has six; 2 anvil faces for press pressure anvil; 3 for synthetic piece, is cubic shaped, in-built synthetic material; 5 is supercharging pressure anvil, and the shape of a kind of supercharging pressure anvil 5 of the present invention can be referring to Fig. 6, and it is the square (lead angle also can be circular arc) that the straight line lead angle is arranged that anvil 5 its cross sections are pressed in the supercharging that Fig. 6 provides; 6 are that supercharging presses the anvil support, and each supercharging presses anvil support 6 to be made of three orthogonal square columns, and three square columns respectively have a termination to be fixed together, and are unexpected misfortunes in three square columns, and the length of more rectangular post equals length and the wide sum of short square column; 4 is a cube carriage, be by four independently supercharging press the framework of the regular cube shape that anvil support 6 assembles; Cube carriage 4 and supercharging press the concrete shape of anvil support 6 can be respectively referring to Fig. 4 and Fig. 5.
Press anvil 1 (also claiming top hammer) after touching supercharging pressure anvil 5 and relating to the synthetic piece 3 of hexahedron, can continue synthetic piece 3 is exerted pressure in order to make six press, supercharging presses the proportion of anvil 5 anvil face sizes and 3 one faces of synthetic piece 1～0.2, and ratio is 0.7 preferably.Supercharging presses anvil support 6 materials can be hard alloy steel, an integral body that is comprised of three orthogonal rectangular posts.Supercharging presses anvil 5 to compare with traditional pressure anvil, changes into mutually perpendicular four planar side of adjacent plane by original circular arc side.Planar side helps supercharging to press anvil 5 freely to move at axial direction in cube carriage 4.Cube carriage 4 like this and side are that the supercharging on plane presses the great advantage of the structure that anvil 5 matches to be: six superchargings are pressed anvils 5 can be assembled to very simply by supercharging and are pressed on cube carriage 4 of anvil support 6 assemblings, and do not need to debug centering and just can directly use, saved a large amount of installations, debug time.
1. press anvil 1 (top hammer) material selection WC such as hexahedral press, when anvil face was of a size of 23.5*23.5mm, supercharging pressed the bottom surface size dimension of anvil 5 to select 14.5*14.5mm.Supercharging presses the little surperficial size dimension of anvil 5 in 1～4mm range, can obtain size and the pressure of different high pressure synthetic cavities.When anvil 3 little surperficial length of side 3mm was pressed in supercharging, high-pressure chamber pressure can reach 23GPa;
At this moment, supercharging presses anvil support 6 to select alloy steel material, and the cross section of three square columns is selected 4.5*4.5mm, and two short square column length are selected 14.5mm, and the long square column length of another root is 19mm.
2. such as pressure anvil 1 (top hammer) the material selection WC of hexahedron press, when anvil face was of a size of 35*35mm, supercharging pressed the bottom surface size dimension of anvil 5 to select 23.5*23.5mm, and the little surperficial size dimension of supercharging pressure anvil 5 can be in 1～6mm range.When supercharging pressed the anvil 5 little surperficial length of sides to be 4mm, high-pressure chamber pressure can reach 25GPa;
At this moment, supercharging presses anvil support 6 to select alloy steel material, and the cross section of three square columns is selected 7.5*7.5mm, and two short square column length are selected 23.5mm, and the long square column length of another root is 31mm.
3. press anvil 5 if adopt diamond sinter to do supercharging, can obtain higher chamber pressure.
Claims (3)
1. ultra-high pressure apparatus based on hinge type hexahedron press, structure comprise that synchronously driven six press of hexahedron press press the cubical synthetic piece (3) of anvil (1), in-built synthetic material, press six superchargings pressure anvils (5) placing between the plane of anvil anvil face (2) and synthetic piece (3) at press; It is characterized in that, structure also comprises a cube carriage (4), cube carriage (4) presses anvil supports (6) to assemble by four superchargings, and each supercharging presses anvil support (6) to be made of three orthogonal square columns, and three square columns respectively have a termination to be fixed together; Six supercharging pressure anvils (5) can pass respectively six frame faces of a cube carriage (4) and press the axis direction of anvil (5) to move in supercharging, to synthetic piece (3) pressurization or release; Anvil (5) is pressed in described supercharging, is a kind of of tungsten carbide, diamond, cubic boron nitride polycrystalline sintered body, or a kind of in the composite of sintering preparation between them.
2. the ultra-high pressure apparatus based on hinge type hexahedron press according to claim 1 is characterized in that, anvil (5) is pressed in described supercharging, and the side is the plane, and it is that square or cross section are the square that lead angle is arranged that the cross section of anvil (5) main body is pressed in supercharging.
3. the ultra-high pressure apparatus based on hinge type hexahedron press according to claim 1 and 2, it is characterized in that, two relative superchargings press the axial length of anvil (5) and cube to synthesize the length of side sum of piece (3) greater than the outerplanar length of side of a cube carriage (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110293668 CN102389750B (en) | 2011-10-04 | 2011-10-04 | Ultra-high pressure device based on hinged-type hexahedral press |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110293668 CN102389750B (en) | 2011-10-04 | 2011-10-04 | Ultra-high pressure device based on hinged-type hexahedral press |
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| CN102389750A CN102389750A (en) | 2012-03-28 |
| CN102389750B true CN102389750B (en) | 2013-10-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB201205743D0 (en) * | 2012-03-30 | 2012-05-16 | Element Six Ltd | Pressure cartridge |
| CN103446946B (en) * | 2013-08-15 | 2015-07-08 | 四川大学 | Secondary anvil and secondary pressurizing unit of octahedral pressure cavity static high-pressure device |
| CN107215897B (en) * | 2017-06-14 | 2019-05-07 | 吉林大学 | A kind of preparation method of black transparent amorphous niobium pentaoxide |
| CN114984858B (en) * | 2022-06-29 | 2023-06-27 | 中国工程物理研究院核物理与化学研究所 | High-temperature high-pressure device of hexahedral top press |
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| IE74960B1 (en) * | 1995-01-05 | 1997-08-13 | Sii Megadiamond Inc | Synthetic gasket materials for use in high-pressure presses |
| CN100441282C (en) * | 2006-12-25 | 2008-12-10 | 张甜 | Super high pressure mould of six top surfaced diamond synthesis pressure equipment |
| CN101804313B (en) * | 2010-04-09 | 2012-12-19 | 四川大学 | Anvil-pre-sealing edge high pressure device |
| CN101912749B (en) * | 2010-08-13 | 2013-01-09 | 吉林大学 | Device for generating large-cavity ultrahigh hydrostatic pressure |
| CN102188935B (en) * | 2011-04-13 | 2013-05-29 | 四川大学 | Novel large-cavity high-pressure device |
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