CN219736668U - Pressure calibration device for synthetic die of diamond composite sheet of hexahedral press - Google Patents
Pressure calibration device for synthetic die of diamond composite sheet of hexahedral press Download PDFInfo
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- CN219736668U CN219736668U CN202320690557.7U CN202320690557U CN219736668U CN 219736668 U CN219736668 U CN 219736668U CN 202320690557 U CN202320690557 U CN 202320690557U CN 219736668 U CN219736668 U CN 219736668U
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- diamond
- copper foil
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 69
- 239000010432 diamond Substances 0.000 title claims abstract description 69
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 78
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 78
- 239000000843 powder Substances 0.000 claims abstract description 15
- 239000000956 alloy Substances 0.000 claims abstract description 7
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 59
- 239000011889 copper foil Substances 0.000 claims description 39
- 230000005540 biological transmission Effects 0.000 claims description 21
- 239000000126 substance Substances 0.000 claims description 19
- 150000003839 salts Chemical class 0.000 claims description 17
- 239000000919 ceramic Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 229910052903 pyrophyllite Inorganic materials 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Carbon And Carbon Compounds (AREA)
Abstract
The utility model discloses a pressure calibration device for a synthesis die of a diamond compact of a hexahedral press, and relates to the field of diamond compact production, wherein the device comprises a diamond compact synthesis die and a plurality of top hammers, and a plurality of top hammers are encircled to form a synthesis cavity; the diamond compact synthesis die is positioned in the synthesis cavity, and comprises an inner synthesis die and an outer synthesis die which surrounds the outer side of the inner synthesis die, wherein the inner synthesis die comprises a layer of hard alloy matrix and a layer of diamond micro powder; the diamond powder end of the inner synthetic die is provided with a pressure calibration circuit insulated from the inner synthetic die, the pressure calibration circuit penetrates through the outer synthetic die to be connected with a top hammer in the horizontal direction, and the top hammer connected with the pressure calibration circuit is connected with an external resistance measurement circuit. The utility model can truly mark the actual synthesis pressure of the diamond layer during high-pressure synthesis of the diamond composite sheet.
Description
Technical Field
The utility model relates to the field of diamond compact production, in particular to a pressure calibration device for a synthetic die of a diamond compact of a hexahedral top press.
Background
At present, the domestic diamond compact production equipment is a hexahedral top press, diamond powder and a hard alloy matrix are assembled into a synthetic die through various sealing, pressure transmission and heating parts, the synthetic die is placed in a synthetic cavity formed by six hard alloy top hammers of the hexahedral top press, the six directions are pressurized simultaneously, and high current is introduced into the heating parts for heating, so that the high-temperature ultrahigh-pressure synthetic diamond compact is produced. In the ultra-high pressure synthesis process, a general pressure sensor cannot measure the actual pressure inside the synthesis die, so a common method for measuring the pressure inside the synthesis die is to indirectly obtain the actual pressure inside the synthesis die by measuring the phase change of some substances at a specific high pressure point and accompanied with the abrupt change of resistance, thereby establishing the corresponding relation between the oil pressure of the hexahedral press and the pressure inside the synthesis die.
In the existing pressure calibration technology of the hexahedral press, the pressure calibration substances are all placed in the middle of the synthesis die, and other pressure transmission parts are used for replacing the inner synthesis die part of the high-temperature and ultrahigh-pressure synthesis die of the diamond composite sheet, so that the actual pressure of the diamond powder end during the synthesis of the diamond composite sheet cannot be truly reflected.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a pressure calibration device for a synthesis die of a diamond compact of a hexahedral press, which can solve the problem that the actual pressure of a diamond powder end during the synthesis of the diamond compact cannot be truly reflected in the pressure calibration technology of the hexahedral press.
The pressure calibration device for the diamond composite sheet synthesis die of the hexahedral top press comprises a diamond composite sheet synthesis die and a plurality of top hammers, wherein a synthesis cavity is formed by surrounding the top hammers; the diamond compact synthesis die is positioned in the synthesis cavity and comprises an inner synthesis die and an outer synthesis die which surrounds the outer side of the inner synthesis die, and the inner synthesis die comprises a layer of hard alloy matrix and a layer of diamond micro powder; the diamond powder end of the inner synthetic die is provided with a pressure calibration circuit insulated from the inner synthetic die, the pressure calibration circuit penetrates through the outer synthetic die to be connected with a top hammer in the horizontal direction, and the top hammer connected with the pressure calibration circuit is connected with an external resistance measurement circuit.
In some embodiments, the outer synthetic die comprises a pressure transmission structure and a heat conduction pressure transmission component, the pressure transmission structure comprises pyrophyllite pressure transmission medium, the pyrophyllite pressure transmission medium is of a cube structure with a cylindrical hole in the middle, and the heat conduction pressure transmission component is embedded in the cylindrical hole.
In some embodiments, the top end and the bottom end of the heat-conducting pressure-transferring component are both provided with electric-conducting components, and the heat-conducting pressure-transferring component surrounds the inner synthetic die.
In some embodiments, the conductive component includes a metal conductive sheet, a salt sheet is disposed on a side of the metal conductive sheet, which is close to the inner synthesis mold, the salt sheet is connected to the inner synthesis mold, and a conductive steel ring is disposed on a side of the metal conductive sheet, which is far away from the inner synthesis mold.
In some embodiments, the heat-conducting pressure-transmitting component comprises a salt pipe, the salt pipe is connected with the inner synthesis die, a heating carbon pipe is arranged on the outer side of the salt pipe, and the heating carbon pipe is connected with the pyrophyllite pressure-transmitting medium.
In some embodiments, the pressure calibration circuit includes a pressure calibration circuit element and three conductive structures connecting the pressure calibration circuit element to the three rams in the horizontal direction.
In some embodiments, the pressure calibration circuit element includes an electrical insulating sheet, the electrical insulating sheet is in a circular structure, and a first copper foil, a second copper foil and a third copper foil are disposed on the electrical insulating sheet, wherein the second copper foil and the third copper foil are respectively disposed at two ends of a diameter of the electrical insulating sheet, the first copper foil is disposed on the electrical insulating sheet perpendicular to the diameter, a first pressure calibration substance is disposed between a top end of the first copper foil and a top end of the second copper foil, and a second pressure calibration substance is disposed between a top end of the first copper foil and a top end of the third copper foil.
In some embodiments, the electrically insulating sheet has the same diameter as the inner composite mold.
In some embodiments, the conductive structure comprises a ceramic tube and a copper wire penetrating inside the ceramic tube, both ends of the copper wire being exposed out of the ceramic tube.
In some embodiments, one end of the conductive structure is connected to the copper foil and the other end is in contact with a horizontal top hammer through an outer synthetic die.
Compared with the prior art, the utility model has the advantages that:
1. the standard pressure substance is arranged at the diamond powder end of the inner synthesis die, and the standard pressure circuit and the lead-out wires do not change the structure of the diamond composite sheet synthesis die, so that the actual synthesis pressure of the diamond layer can be truly marked when the diamond composite sheet is synthesized under high pressure.
2. The pressure calibration circuit is arranged on the insulating material in advance to form a modular pressure calibration circuit element, so that the pressure calibration circuit element is convenient to assemble in the diamond compact synthetic die.
3. The pressure calibration circuit and the signal lead-out wire adopt a split design, so that the drilling and the assembly on the outer synthetic die are facilitated, and meanwhile, the wire is prevented from being sheared in the compression process at the juncture of the inner synthetic die and the outer synthetic die.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a device for calibrating the pressure of a composite die of a diamond compact of a cubic press according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a pressure calibration circuit element of a pressure calibration device for a diamond compact synthesis die of a cubic press according to an embodiment of the present utility model;
FIG. 3 is a top view of a structure of a device for calibrating the pressure of a synthetic die of a diamond compact of a cubic press according to an embodiment of the present utility model;
in the figure: 1-top hammer; 2-a conductive steel ring; 3-pyrophyllite pressure medium; 4-metal conductive sheets; 5-salt flakes; 6-heating the carbon tube; 7-salt tube; 8-a hard alloy matrix; 9-diamond micropowder; 10-internal synthesis mould; 11-a pressure calibration circuit element; 12-ceramic tube; 13-copper wire; 14-an electrically insulating sheet; 151-a first copper foil; 152-a second copper foil; 153-a third copper foil; 16-a first pressure-marking substance; 17-a second pressure-marking substance.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the utility model provides a pressure calibration device for a synthesis die of a diamond compact of a hexahedral press, which can solve the problem that the actual pressure of a diamond powder end during the synthesis of the diamond compact cannot be truly reflected in the existing pressure calibration technology of the hexahedral press.
Referring to fig. 1 and 3, an embodiment of the present utility model provides a pressure calibration device for a diamond compact synthesis die of a hexahedral press, including a diamond compact synthesis die and a plurality of top hammers 1, where the plurality of top hammers 1 are surrounded to form a synthesis cavity; the diamond composite sheet synthesis die is positioned in the synthesis cavity, the diamond composite sheet synthesis die comprises an inner synthesis die 10 and an outer synthesis die surrounding the outer side of the inner synthesis die 10, and the inner synthesis die 10 comprises a layer of hard alloy matrix 8 and a layer of diamond micro powder 9; the diamond powder end of the inner synthetic die 10 is provided with a pressure calibration circuit insulated from the inner synthetic die, the pressure calibration circuit penetrates through the outer synthetic die to be connected with the top hammer 1 in the horizontal direction, and the top hammer 1 connected with the pressure calibration circuit is connected with an external resistance measurement circuit.
Compared with the prior art, the pressure calibration device for the synthesis die of the diamond composite sheet of the hexahedral top press provided by the embodiment of the utility model has the advantages that the pressure calibration circuit is arranged at the diamond micro powder 9 end of the inner synthesis die 10, the structure of the synthesis die of the diamond composite sheet is not changed by the pressure calibration circuit and the lead wire, and the actual synthesis pressure of the diamond layer can be truly calibrated when the diamond composite sheet is synthesized under high pressure.
As an alternative embodiment, referring to fig. 1, the outer synthetic die includes a pressure transmitting structure and a heat conducting pressure transmitting component, the pressure transmitting structure includes a pyrophyllite pressure transmitting medium 3, the pyrophyllite pressure transmitting medium 3 is a cube structure with a cylindrical hole in the middle, the heat conducting pressure transmitting component is embedded in the cylindrical hole, and the cylindrical hole in the middle provides an installation space for the heat conducting pressure transmitting component and the inner synthetic die 10.
As an alternative embodiment, referring to fig. 1, the conductive assemblies are disposed at the top and bottom ends of the heat and pressure conductive assembly, and the heat and pressure conductive assembly surrounds the inner composite mold 10 for heat and pressure transfer to the inner composite mold 10.
As an alternative embodiment, referring to fig. 1, the conductive assembly includes a metal conductive sheet 4, a salt sheet 5 is disposed on a side of the metal conductive sheet 4 close to the inner synthesis die 10, the salt sheet 5 is connected with the inner synthesis die 10, and a conductive steel ring 2 is disposed on a side of the metal conductive sheet 4 far from the inner synthesis die 10.
As an alternative embodiment, referring to fig. 1, the heat conduction and pressure transmission assembly includes a salt pipe 7, the salt pipe 7 is connected with an inner synthesis mold 10, a heating carbon pipe 6 is arranged on the outer side of the salt pipe 7, the heating carbon pipe 6 is connected with a pyrophyllite pressure transmission medium 3, and both the salt sheet 5 and the salt pipe 7 are used as heat conduction and pressure transmission mediums.
As an alternative embodiment, see fig. 1 and 2, the pressure calibration circuit comprises a pressure calibration circuit element 11 and three conductive structures connecting the pressure calibration circuit element 11 to the three rams 1 in the horizontal direction.
As an alternative embodiment, referring to fig. 2, the pressure calibration circuit element 11 includes an electrical insulating sheet 14, the electrical insulating sheet 14 has a circular structure, and a first copper foil 151, a second copper foil 152 and a third copper foil 153 are disposed on the electrical insulating sheet 14, wherein the second copper foil 152 and the third copper foil 153 are disposed at two ends of a diameter of the electrical insulating sheet 14, respectively, the first copper foil 151 is disposed on the electrical insulating sheet 14 perpendicular to the diameter, a first pressure-calibrating substance 16 is disposed between a top end of the first copper foil 151 and a top end of the second copper foil 152, a second pressure-calibrating substance 17 is disposed between a top end of the first copper foil 151 and a top end of the third copper foil 153, wherein a thickness of the copper foil conductor is 0.01-1mm, a width is 1-5mm, a thallium-selecting material of the first pressure-calibrating substance 16 and the second pressure-calibrating substance 17 is one or several kinds of bismuth, barium, and the first pressure-calibrating substance 16 and the second pressure-calibrating substance 17 have a wire-like structure with a diameter of 0.01-1mm or a sheet-like structure with a thickness of 0.01-1mm and a width of 1-5 mm.
As an alternative embodiment, referring to fig. 2, the diameter of the electrically insulating sheet 14 is the same as that of the inner composite mold 10, the thickness of the electrically insulating sheet 14 is 0.01-0.1mm, and the material of the electrically insulating sheet 14 may be mica sheet or polytetrafluoroethylene film.
As an alternative embodiment, referring to fig. 1 and 3, the conductive structure includes a ceramic tube 12 and a copper wire 13 penetrating inside the ceramic tube 12, both ends of the copper wire 13 are exposed out of the ceramic tube 12, and the diameter of the copper wire 13 is 0.01-1mm.
As an alternative embodiment, referring to fig. 2 and 3, one end of the conductive structure is connected to the copper foil 15, and the other end is contacted with the top hammer 1 in the horizontal direction through the outer synthetic mold.
The embodiment of the utility model provides a pressure calibration device for a synthetic die of a diamond compact of a hexahedral press, which comprises the following specific implementation processes:
before the pressure calibration test starts, the electric insulating sheet 14, the copper foil 15, the first pressure calibration substance 16 and the second pressure calibration substance 17 are preassembled according to the structure of the pressure calibration circuit element 11 shown in fig. 2, then the copper wire 13 is passed through the ceramic tube 12 on the outer synthetic die, both ends of the copper wire 13 are exposed out of the ceramic tube 12, the pressure calibration circuit element 11 is installed in the outer synthetic die, at this time, one end of the copper wire 13 is connected with the copper foil 15, and the other end is exposed out of the outer synthetic die, so that the pressure calibration circuit element can be contacted with the top hammer 1 when the pressurizing operation is performed, thereby leading out a pressure calibration signal to the top hammer 1, and the top hammer 1 connected with the copper wire 13 is also connected with a resistance measuring instrument, and the circuit connection of the resistance measuring instrument is shown in fig. 3. The inner composite mold 10 is filled with diamond micropowder 9 and cemented carbide substrate 8, taking care that the diamond micropowder layer is adjacent to the pressure calibration circuit. After the device is assembled, a pressure calibration test is started, the pressure calibration substance can generate phase change at a specific high-pressure point and accompanies abrupt change of resistance, and the actual pressure inside the synthetic die is indirectly obtained through an externally connected resistance measuring instrument. The standard pressure substance of the device is arranged at the diamond powder end of the inner synthesis die 10, and the standard pressure circuit and the lead-out wires do not change the structure of the diamond composite sheet synthesis die, so that the actual synthesis pressure of the diamond layer can be truly marked when the diamond composite sheet is synthesized at high pressure.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present utility model, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a six roof press diamond compact synthetic die pressure calibration device which characterized in that includes:
a plurality of top hammers (1), wherein a plurality of top hammers (1) are surrounded to form a synthesis cavity;
the diamond composite sheet synthesis die is positioned in the synthesis cavity and comprises an inner synthesis die (10) and an outer synthesis die which surrounds the outer side of the inner synthesis die (10), wherein the inner synthesis die (10) comprises a layer of hard alloy matrix (8) and a layer of diamond micro powder (9);
the diamond powder end of the inner synthetic die (10) is provided with a pressure calibration circuit insulated from the inner synthetic die, the pressure calibration circuit penetrates through the outer synthetic die to be connected with a top hammer (1) on the horizontal direction, and the top hammer (1) connected with the pressure calibration circuit is connected with an external resistance measurement circuit.
2. The apparatus for calibrating the synthesis die pressure of a diamond compact of a cubic press as set forth in claim 1, wherein: the outer synthetic die comprises a pressure transmission structure and a heat conduction pressure transmission assembly, the pressure transmission structure comprises pyrophyllite pressure transmission media (3), the pyrophyllite pressure transmission media (3) are cube structures with cylindrical holes in the middle, and the heat conduction pressure transmission assembly is embedded into the cylindrical holes.
3. The apparatus for calibrating the die pressure of a diamond compact of a cubic press as set forth in claim 2, wherein: the top and bottom of heat conduction pressure transmission subassembly all are equipped with electrically conductive subassembly, just heat conduction pressure transmission subassembly will interior synthetic mould (10) surrounds.
4. A cubic press diamond compact synthesis die pressure calibration apparatus as claimed in claim 3, wherein: the conductive assembly comprises a metal conductive sheet (4), a salt sheet (5) is arranged on one side, close to the inner synthesis die (10), of the metal conductive sheet (4), the salt sheet (5) is connected with the inner synthesis die (10), and a conductive steel ring (2) is arranged on one side, far away from the inner synthesis die (10), of the metal conductive sheet (4).
5. The device for calibrating the synthesis die pressure of the diamond compact of the hexahedral press according to claim 4, wherein: the heat conduction pressure transmission assembly comprises a salt pipe (7), the salt pipe (7) is connected with the inner synthesis die (10), a heating carbon pipe (6) is arranged on the outer side of the salt pipe (7), and the heating carbon pipe (6) is connected with the pyrophyllite pressure transmission medium (3).
6. The device for calibrating the synthesis die pressure of the diamond compact of the hexahedral press according to claim 5, wherein: the pressure calibration circuit comprises a pressure calibration circuit element (11) and three conducting structures, wherein the conducting structures are used for connecting the pressure calibration circuit element (11) with the three top hammers (1) in the horizontal direction.
7. The apparatus for calibrating the die pressure of a diamond compact of a cubic press as set forth in claim 6, wherein: the pressure calibration circuit element (11) comprises an electric insulating sheet (14), the electric insulating sheet (14) is of a round structure, a first copper foil (151), a second copper foil (152) and a third copper foil (153) are arranged on the electric insulating sheet (14), the second copper foil (152) and the third copper foil (153) are respectively located at two ends of one diameter of the electric insulating sheet (14), the first copper foil (151) is perpendicular to the diameter, the electric insulating sheet (14) is provided with a first pressure calibration substance (16) between the top end of the first copper foil (151) and the top end of the second copper foil (152), and a second pressure calibration substance (17) is arranged between the top end of the first copper foil (151) and the top end of the third copper foil (153).
8. The apparatus for calibrating the die pressure of a diamond compact of a cubic press as set forth in claim 7, wherein: the diameter of the electrically insulating sheet (14) is the same as the diameter of the inner composite mould (10).
9. The apparatus for calibrating the die pressure of a diamond compact of a cubic press as set forth in claim 8, wherein: the conductive structure comprises a ceramic tube (12) and a copper wire (13) penetrating through the ceramic tube (12), wherein both ends of the copper wire (13) are exposed out of the ceramic tube (12).
10. The apparatus for calibrating the die pressure of a diamond compact of a cubic press as set forth in claim 9, wherein: one end of the conductive structure is connected with the copper foil (15), and the other end of the conductive structure passes through the outer synthetic die to be in contact with the top hammer (1) in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320690557.7U CN219736668U (en) | 2023-03-31 | 2023-03-31 | Pressure calibration device for synthetic die of diamond composite sheet of hexahedral press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320690557.7U CN219736668U (en) | 2023-03-31 | 2023-03-31 | Pressure calibration device for synthetic die of diamond composite sheet of hexahedral press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219736668U true CN219736668U (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320690557.7U Active CN219736668U (en) | 2023-03-31 | 2023-03-31 | Pressure calibration device for synthetic die of diamond composite sheet of hexahedral press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219736668U (en) |
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2023
- 2023-03-31 CN CN202320690557.7U patent/CN219736668U/en active Active
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