WO2023193366A1 - Dispositif de test - Google Patents
Dispositif de test Download PDFInfo
- Publication number
- WO2023193366A1 WO2023193366A1 PCT/CN2022/106552 CN2022106552W WO2023193366A1 WO 2023193366 A1 WO2023193366 A1 WO 2023193366A1 CN 2022106552 W CN2022106552 W CN 2022106552W WO 2023193366 A1 WO2023193366 A1 WO 2023193366A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conductive
- gasket
- heating body
- testing device
- sheet
- Prior art date
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 74
- 239000004020 conductor Substances 0.000 claims abstract description 38
- 238000009413 insulation Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910002804 graphite Inorganic materials 0.000 claims description 13
- 239000010439 graphite Substances 0.000 claims description 13
- 238000004321 preservation Methods 0.000 claims description 10
- 210000003000 inclusion body Anatomy 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 description 9
- 230000009471 action Effects 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 229910052903 pyrophyllite Inorganic materials 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 4
- 229910052582 BN Inorganic materials 0.000 description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 3
- 241000251131 Sphyrna Species 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000005477 sputtering target Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000516 sunscreening agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
Definitions
- the present application relates to the technical field of cavity testing, and in particular to a testing device.
- the heating capacity usually does not exceed 2600K, mainly because it is very challenging to design a cavity with a heating circuit that can withstand large currents and a thermal insulation layer that can effectively improve thermal efficiency. sex.
- the cavity needs to provide ultra-high current (hundreds of amperes) during the heating process, and there is a certain contact resistance between the components involved in conduction in the heating circuit, a large amount of heat will be generated under the action of high current. As a result, the contact position burns through and the upper temperature limit cannot be increased.
- the selection of insulation materials inside the cavity will also affect the upper temperature limit of the cavity to a certain extent. For example, pyrophyllite, which is currently the most widely used, often undergoes phase changes at high temperatures and even melts at extremely high temperatures. These Factors will affect the upper temperature limit of the cavity.
- the purpose of this application is to provide a testing device to overcome the deficiencies in the prior art.
- test device including an assembly, a hollow pressure transmission dielectric block, a first conductor, a second conductor and a temperature measurement component;
- the first conductor and the second conductor are spaced apart and arranged inside the hollow pressure transmitting dielectric block;
- the assembly is disposed between the first conductor and the second conductor;
- the assembly includes a first conductive part, a second conductive part, a heat preservation component and a heating body;
- the first conductive part and the second conductive part are respectively provided at both ends of the heating body, and the heat preservation component is sleeved on the heating body;
- the temperature measuring assembly includes a temperature measuring element and a connecting pipe wrapped around the temperature measuring element.
- the connecting pipe is passed through the assembly, and both ends of the connecting pipe are inserted into the hollow pressure transmission medium respectively. piece;
- Both ends of the temperature measuring element are respectively arranged inside the hollow pressure transmission medium block.
- the first conductive part includes a first conductive pillar, a first support piece and a first conductive piece;
- One end of the first conductive pillar is connected to the heating body, and the other end of the first conductive pillar is connected to the first support sheet.
- the first conductive sheet is stacked on the first support sheet away from the One side of the first conductive pillar.
- the second conductive part includes a second conductive pillar, a second support piece and a second conductive piece;
- One end of the second conductive pillar is connected to the heating body, the other end of the second conductive pillar is connected to the second support sheet, and the second conductive sheet is stacked on the second support sheet away from the One side of the second conductive pillar.
- the insulation component includes an insulation tube, a first gasket and a second gasket, the first gasket and the second gasket being respectively provided at both ends of the insulation tube;
- the insulation tube is set on the heating body, and the first gasket is set on the first conductive column and the first support piece;
- the second gasket is sleeved on the second conductive pillar and the second support piece.
- the orthographic projection of the first conductive sheet in the axial direction of the first support sheet completely covers the first support sheet and the first gasket.
- the orthographic projection of the second conductive sheet in the axial direction of the second support sheet completely covers the second support sheet and the second gasket.
- the first gasket, the second gasket and the insulation tube are coaxially arranged.
- the heating body includes a hollow cylinder and an inclusion body, and the inclusion body is filled inside the hollow cylinder.
- the hollow cylinder is a graphite hollow cylinder.
- the connecting tube is located between the first conductive part and the second conductive part.
- the embodiments of the present application have the following advantages: by adding a first support piece between the first conductive sheet and the first conductive pillar, and adding a second support sheet between the second conductive sheet and the second conductive pillar, the number of The contact area between the first conductive sheet and the first conductive pillar, and between the second conductive sheet and the second conductive pillar greatly reduces the contact resistance at the interface, thereby reducing the contact resistance between the first conductive sheet and the second conductive sheet.
- the heat generated at the position prevents the first conductive sheet and the second conductive sheet from burning through when the current is greater than 600A, improves the stability of the first conductive sheet and the second conductive sheet, thereby increasing the upper temperature limit of the device.
- Figure 1 shows a schematic structural diagram of a testing device provided by some embodiments of the present application
- Figure 2 shows a cross-sectional view of part A-A in Figure 1;
- Figure 3 shows a schematic structural diagram of a testing device provided by some embodiments of the present application from another perspective
- Figure 4 shows a schematic structural diagram of an assembly in a testing device provided by some embodiments of the present application.
- FIG. 5 shows a cross-sectional view of part B-B in FIG. 4 .
- connection should be understood broadly.
- it can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements.
- connection can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements.
- first and second are used for descriptive purposes only and shall not be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined as “first” and “second” may explicitly or implicitly include one or more of these features. In the description of this application, “plurality” means two or more than two, unless otherwise explicitly and specifically limited.
- some embodiments of the present application provide a testing device, which is mainly used in the study of high temperature and high pressure in centimeter-scale sample cavities.
- the test device includes an assembly 100 , a hollow pressure transmitting dielectric block 200 , a first conductor 300 , a second conductor 400 and a temperature measurement component 500 .
- the temperature measurement component 500 is used to monitor the temperature change of the heating body 140 .
- the first conductor 300 and the second conductor 400 are configured to be connected to an external power source, and current passes through the assembly 100, causing the assembly 100 to generate heat under the action of the current.
- the first conductor 300 and the second conductor 400 are spaced apart inside the hollow pressure transmitting dielectric block 200 .
- the shape of the hollow pressure transmitting medium block 200 can be a central cylinder or a central polygonal prism, which can be specifically set according to the actual situation.
- the shape of the hollow pressure-transmitting medium block 200 is a cubic structure with a central opening, and the hollow pressure-transmitting medium block 200 is made of pyrophyllite, that is, the hollow pressure-transmitting medium block 200 is hollow.
- Pyrophyllite Pyrophyllite is a kind of clay mineral with fine texture and low hardness.
- the newly developed pyrophyllite mine has a reserve capacity of 2 million tons. Among them, the aluminum content reaches 30%-39%, Fe2O3+TI2O ⁇ 0.2%, and it is suitable for artificial synthesis. Blanks (molds) for diamond, ceramics, refractory materials, fiberglass, engraving stones, etc.
- the assembly 100 is disposed between the first conductor 300 and the second conductor 400 . If necessary, it should be noted that the assembly 100 is a conductive structure, and the outer wall of the assembly 100 conflicts with the inner wall of the hollow pressure transmitting dielectric block 200 .
- first conductor 300 and the second conductor 400 respectively conflict with both ends of the assembly 100, and the first conductor 300 and the second conductor 400 can be connected to an external power supply respectively, so that the external power supply A current flows through the assembly 100 through the first conductor 300 and the second conductor 400, and causes the assembly 100 to generate heat under the action of the current.
- the assembly 100 includes a first conductive part 110 , a second conductive part 120 , a heat preservation component 130 and a heating body 140 . It can be understood that the heat preservation component 130 reduces the heat loss of the heating body 140 during the heating process and improves the heat preservation quality of the heating body 140 .
- first conductive part 110 and the second conductive part 120 By arranging the first conductive part 110 and the second conductive part 120 at both ends of the heating body 140, external power can flow through the heating body 140 through the first conductive part 110 and the second conductive part 120, so as to The heating body 140 is caused to generate heat under the action of electric current.
- the heat preservation component 130 is sleeved on the heating body 140, and the heat preservation component 130 reduces the heat loss of the heating body 140, thereby improving the heating efficiency of the heating body 140.
- the heating body 140 has a cylindrical structure made of a material that is resistant to high temperatures and has conductive properties.
- the temperature measuring assembly 500 includes a temperature measuring element 510 and a connecting tube 520 wrapped around the temperature measuring element 510, and the connecting tube 520 passes through the assembly 100. It can be understood that the connecting tube 520 passes through the assembly body 100, and the two ends of the connecting tube 520 are located outside the assembly body 100 respectively. At the same time, insert both ends of the connecting pipe 520 into the hollow pressure transmitting medium block 200 respectively.
- mounting holes are provided on opposite sides of the inner wall of the hollow pressure transmitting medium block 200, so that both ends of the connecting pipe 520 are respectively disposed in the mounting holes.
- the two ends of the temperature measuring element 510 are respectively arranged inside the hollow pressure transmission medium block. Specifically, one end of the temperature-sensing element passes through one side of the hollow pressure-transmitting medium block 200 and is attached to the outer wall of one side of the hollow pressure-transmitting medium block 200. The other end of the temperature-sensing element passes through the other side of the hollow pressure-transmitting medium block 200. And it is attached to the outer wall of the other side of the hollow pressure transmitting medium block 200, and the two ends of the temperature sensing element are connected to the multi-channel recorder through the hammer head, and the temperature change of the temperature measuring element 510 is recorded, so as to realize the heating body 140°C temperature calibration.
- the connecting pipe 520 is a ceramic pipe to improve the high temperature resistance of the connecting pipe 520 and improve the stability of the connecting rod under high temperature conditions.
- ceramics have many advantages such as excellent insulation, corrosion resistance, high temperature resistance, high hardness, low density and radiation resistance. With the rise of high-tech industry, various new special ceramics have also achieved great development, and ceramics have become increasingly outstanding. structural and functional materials. They have higher temperature resistance, mechanical properties, special electrical properties and excellent chemical resistance than traditional ceramics.
- the temperature measuring element 510 wrapped in a ceramic tube can be used to calibrate the temperature of the cavity inside the heating body 140 .
- the temperature measuring element 510 is a thermocouple.
- Thermocouple is a commonly used temperature measuring element 510 in temperature measuring instruments. It directly measures temperature, converts the temperature signal into a thermoelectromotive force signal, and converts it into the temperature of the measured medium through an electrical instrument (secondary instrument).
- the heating body 140 includes a hollow cylinder 141 and an inclusion 142, and the inclusion 142 is filled in the hollow cylinder 141. inside, and the sample is wrapped by the inclusion 142.
- the inclusion 142 is hexagonal boron nitride.
- Hexagonal boron nitride is a white crystal with a melting point of nearly 3000°C. It is resistant to high temperatures, has extremely stable chemical properties, is resistant to strong acid corrosion, and has high electrical insulation properties.
- the sample is wrapped in the inclusion body 142, and the sample is prevented from being contaminated by the heating body 140 through the inclusion body 142, thereby improving the stability of the sample within the inclusion body 142.
- the hollow cylinder 141 is a graphite hollow cylinder 141 made of graphite.
- the electrical conductivity of graphite is one hundred times higher than that of ordinary non-metallic minerals. Thermal conductivity exceeds that of steel, iron, lead and other metal materials.
- the melting point of graphite is 3850 ⁇ 50°C. Even after ultra-high temperature arc burning, the weight loss is very small and the thermal expansion coefficient is also very small.
- the strength of graphite increases as the temperature increases. At 2000°C, the strength of graphite doubles.
- the first conductive part 110 includes a first conductive pillar 111 , a first support piece 112 and a first conductive piece 113 .
- One end of the first conductive pillar 111 is connected to the heating body 140 , and the first conductive pillar 111 and the heating body 140 can be connected by bonding or integral molding.
- the other end of the first conductive pillar 111 is connected to the first support piece 112, and may also be connected by bonding or integral molding. It should be noted that the axis of the first support piece 112 is coaxially arranged with the first conductive column 111, the diameter of the first support piece 112 is larger than the diameter of the first conductive column 111, and the diameter of the first support piece 112 is smaller than the heating diameter. Body 140 in diameter.
- the first conductive sheet 113 is stacked on the side of the first support sheet 112 away from the first conductive pillar 111 . It should be noted that the axis of the first conductive sheet 113 coincides with the axis of the first conductive pillar 111 , and the diameter of the first conductive sheet 113 is larger than the diameter of the heating body 140 . It can be understood that the orthographic projection of the first conductive sheet 113 along the axial direction of the heating body 140 completely covers the heating body 140 .
- the first support sheet 112 is a graphite sheet.
- the first support sheet 112 is a graphite sheet.
- the gap between the first conductive pillar 111 and the first conductive sheet 113 is reduced.
- the contact resistance between the first conductive pillar 111 and the first conductive sheet 113 is reduced, thereby preventing the first conductive sheet 113 from burning through when the current is greater than 600A, and improving the first conductive sheet 113 Tablet 113 stability.
- the contact area between the first conductive sheet 113 and the first support sheet 112 is not only increased, but also greatly reduced.
- the contact resistance at the contact interface between the first conductive sheet 113 and the first support sheet 112 is reduced, thereby eliminating the heat generated at the contact position between the first conductive pillar 111 and the first conductive sheet 113, and improving the performance of the first conductive sheet 113. Stability during power-on.
- the second conductive part 120 includes a second conductive pillar 121 , a second support piece 122 and a second conductive piece 123 .
- One end of the second conductive pillar 121 is connected to the heating body 140 , and the second conductive pillar 121 and the heating body 140 can be connected by bonding or integral molding.
- the other end of the second conductive pillar 121 is connected to the second support piece 122, and may also be connected by bonding or integral molding. It should be noted that the axis of the second support piece 122 is coaxially arranged with the second conductive column 121, the diameter of the second support piece 122 is larger than the diameter of the second conductive column 121, and the diameter of the second support piece 122 is smaller than the heating diameter. Body 140 in diameter.
- the second conductive sheet 123 is stacked on the side of the second support sheet 122 away from the second conductive pillar 121 . It should be noted that the axis of the second conductive sheet 123 coincides with the axis of the second conductive pillar 121 , and the diameter of the second conductive sheet 123 is larger than the diameter of the heating body 140 . It can be understood that the orthographic projection of the second conductive sheet 123 along the axial direction of the heating body 140 completely covers the heating body 140 .
- the heating body 140 has a cylindrical structure, and the axis of the first conductive pillar 111, the axis of the heating body 140 and the axis of the second conductive pillar 121 coincide.
- the diameter of the first conductive pillar 111 is equal to the diameter of the second conductive pillar 121 , and the diameter of the first conductive pillar 111 is smaller than the diameter of the heating body 140 .
- the second support sheet 122 is a graphite sheet.
- the gap between the second conductive pillar 121 and the second conductive sheet 123 is reduced.
- the contact resistance between the second conductive pillar 121 and the second conductive sheet 123 is reduced, thereby preventing the second conductive sheet 123 from burning through when the current is greater than 600A, and improving the second conductive Tablet 123 stability.
- the contact area between the second conductive sheet 123 and the second support sheet 122 is not only increased, but also greatly reduced.
- the contact resistance at the contact interface between the second conductive sheet 123 and the second support sheet 122 is reduced, thereby eliminating the heat generated at the contact position between the second conductive pillar 121 and the second conductive sheet 123, and improving the performance of the second conductive sheet 123. Stability during power-on.
- the insulation assembly 130 includes an insulation tube 131, a first gasket 132 and a second gasket 133.
- the first gasket 132 and the second gasket 133 are respectively provided. at both ends of the insulation tube 131.
- the outer diameters of the first gasket 132 and the second gasket 133 are equal to the outer diameter of the thermal insulation tube 131 , and the first gasket 132 , the second gasket 133 and the thermal insulation tube 131 are coaxially arranged.
- the insulation tube 131 is sleeved on the heating body 140 . It can be understood that the inner wall of the insulation tube 131 conflicts with the outer wall of the heating body 140 . Specifically, the length of the thermal insulation tube 131 along its axial direction is not less than the length of the heating body 140 along its axial direction, so that the thermal insulation tube 131 is completely wrapped around the circumference of the heating body 140 to improve the thermal insulation of the heating body 140 by the thermal insulation tube 131 . quality.
- first gasket 132 is sleeved on the first conductive pillar 111 and the first support piece 112 to form a cylindrical structure. It should be noted that the first gasket 132 , the first conductive pillar 111 and the first support piece 112 are coaxially arranged, and the sum of the height of the first conductive pillar 111 and the thickness of the first support piece 112 is equal to the thickness of the first gasket 132 .
- the second gasket 133 is sleeved on the second conductive pillar 121 and the second support piece 122 to form a cylindrical structure. It should be noted that the second gasket 133, the second conductive pillar 121 and the second support piece 122 are coaxially arranged. The sum of the height of the second conductive pillar 121 and the thickness of the second support piece 122 is equal to the thickness of the second gasket 133 .
- the insulation tube 131 is a zirconium dioxide tube.
- zirconium dioxide is the main oxide of zirconium. It is usually a white, odorless and tasteless crystal, and is insoluble in water, hydrochloric acid and dilute sulfuric acid. It is chemically inactive and has high melting point, high resistivity, high refractive index and low thermal expansion coefficient, making it an important high temperature resistant material, ceramic insulation material and ceramic sunscreen agent.
- first gasket 132 and the second gasket 133 are respectively zirconium dioxide gaskets made of zirconium dioxide.
- the orthographic projection of the first conductive sheet in the axial direction of the first support sheet completely covers the first support sheet and the first gasket.
- the orthographic projection of the second conductive sheet in the axial direction of the second support sheet completely covers the second support sheet and the second gasket.
- the side of the first conductive sheet 113 close to the heating body 140 is connected to the first support sheet 112 and the first gasket 132 respectively. conflict.
- the first conductive sheet 113 may be connected to the first supporting sheet 112 by bonding or integral molding.
- the side of the second conductive piece 123 close to the heating body 140 conflicts with the second support piece 122 and the second gasket 133 respectively.
- the second conductive sheet 123 can also be connected to the second supporting sheet 122 by bonding or integral molding.
- both the first conductive sheet 113 and the second conductive sheet 123 are molybdenum sheets.
- the density of the molybdenum sheet is basically close to the theoretical density of molybdenum. Therefore, it has high strength, uniform internal structure and excellent high-temperature creep resistance, and is therefore known as It is widely used in the production of reflective screens and covers in sapphire crystal growth furnaces, reflective screens, heating belts, connectors in vacuum furnaces, sputtering targets for plasma coating, high-temperature resistant boats and other products.
- the connecting tube 520 is located between the first conductive part 110 and the second conductive part 120 .
- the axis of the connecting pipe 520 intersects the axis of the heating body 140 , and the axis of the connecting pipe 520 is perpendicular to the axis of the heating body 140 .
- the heating body 140 is formed by filling the detection sample into the hollow cylinder 141 through the inclusion body 142 .
- the first conductor 300 and the second conductor 400 are connected to the external power supply respectively, so that the external current flows through the heating body 140, so that the temperature of the heating body 140 gradually increases under the action of the current.
- By wrapping the heat preservation component 130 in the heating The circumferential direction of the body 140 greatly improves the heating efficiency of the heating body 140 under the action of electric current.
- the temperature in the cavity of the heating body 140 is calibrated through the temperature measuring element 510.
- the sample is wrapped in the hollow cylinder 141 through the inclusion 142 made of hexagonal boron nitride to prevent the sample from being absorbed by the hollow cylinder made of graphite.
- the body 141 is contaminated and the stability of the sample in the inclusion body 142 is improved.
- the device By placing the device into a press, six hammer heads pressurize the six sides of the pyrophyllite assembly block. When the preset pressure is reached, the hammer heads that are in conflict with the first conductor 300 and the second conductor 400 are energized and heat the cavity of the heating body 140. At the same time, the hammer heads that are in conflict with both ends of the temperature measuring element 510 are The head is connected to a multi-channel recorder and records the temperature of the thermocouple to achieve temperature calibration of the cavity of the heating body 140 and determine whether the sample is melted based on the sudden change in the resistance of the press circuit. Through this device, the upper temperature limit of the high-temperature cavity can reach 4000K, far exceeding the 2600K of most similar cavities currently.
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- General Physics & Mathematics (AREA)
- Resistance Heating (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
L'invention concerne un dispositif de test, se rapportant au domaine technique des tests de cavité. Le dispositif de test comprend un corps d'ensemble (100), un bloc de milieu de transmission de pression creux (200), un premier conducteur électrique (300), un second conducteur électrique (400) et un ensemble de mesure de température (500). Le premier conducteur électrique (300) et le second conducteur électrique (400) sont disposés sur le côté interne du bloc de milieu de transmission de pression creux (200) à des intervalles. Le corps d'ensemble (100) est disposé entre le premier conducteur électrique (300) et le second conducteur électrique (400). Le corps d'ensemble (100) comprend une première partie conductrice (110), une seconde partie conductrice (120), un ensemble d'isolation thermique (130) et un corps chauffant (140). La première partie conductrice (110) et la seconde partie conductrice (120) sont respectivement agencées aux deux extrémités du corps chauffant (140), et l'ensemble d'isolation thermique (130) est emmanché sur le corps chauffant (140). L'ensemble de mesure de température (500) comprend un élément de mesure de température (510) et un tuyau de raccordement (520) enveloppant l'élément de mesure de température (510), et le tuyau de raccordement (520) traverse le corps d'assemblage (100). En augmentant la surface de contact entre les feuilles conductrices (113, 123) et les colonnes conductrices (111, 121), la résistance de contact à l'interface est réduite, de manière à atténuer la chaleur générée par les colonnes conductrices (111, 121) et les feuilles conductrices (113, 123) à la position de contact, et à empêcher les feuilles conductrices d'être brûlées à un courant supérieur à 600 A, améliorant ainsi la limite supérieure de température du dispositif.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN202220782321.1U CN216449047U (zh) | 2022-04-07 | 2022-04-07 | 一种测试装置 |
CN202220782321.1 | 2022-04-07 |
Publications (1)
Publication Number | Publication Date |
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WO2023193366A1 true WO2023193366A1 (fr) | 2023-10-12 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2022/106552 WO2023193366A1 (fr) | 2022-04-07 | 2022-07-19 | Dispositif de test |
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CN216449047U (zh) * | 2022-04-07 | 2022-05-06 | 南方科技大学 | 一种测试装置 |
CN216972742U (zh) * | 2022-04-07 | 2022-07-15 | 南方科技大学 | 一种晶体制备装置 |
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JP2005001934A (ja) * | 2003-06-11 | 2005-01-06 | Daiichi Kiden:Kk | サファイア単結晶引上成長装置 |
CN202594788U (zh) * | 2012-05-14 | 2012-12-12 | 河南飞孟金刚石工业有限公司 | 一种超硬材料合成用加热装置 |
CN202594786U (zh) * | 2012-05-14 | 2012-12-12 | 河南飞孟金刚石工业有限公司 | 一种合成立方氮化硼的加热装置 |
CN205262628U (zh) * | 2015-12-24 | 2016-05-25 | 河南四方达超硬材料股份有限公司 | 六面顶压机合成腔内径向温度测量装置 |
CN106116567A (zh) * | 2016-06-22 | 2016-11-16 | 刘和来 | 高密度纳米钛酸钡陶瓷的制备方法 |
CN111025055A (zh) * | 2019-12-04 | 2020-04-17 | 四川大学 | 一种用于高应力、大变形环境的导电介质、组装件及其应用 |
CN216449047U (zh) * | 2022-04-07 | 2022-05-06 | 南方科技大学 | 一种测试装置 |
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2022
- 2022-04-07 CN CN202220782321.1U patent/CN216449047U/zh active Active
- 2022-07-19 WO PCT/CN2022/106552 patent/WO2023193366A1/fr unknown
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CN2210708Y (zh) * | 1995-03-10 | 1995-10-25 | 北京晶鑫磊非金属材料有限责任公司 | 合成超硬材料用超高压高温室 |
JP2005001934A (ja) * | 2003-06-11 | 2005-01-06 | Daiichi Kiden:Kk | サファイア単結晶引上成長装置 |
CN202594788U (zh) * | 2012-05-14 | 2012-12-12 | 河南飞孟金刚石工业有限公司 | 一种超硬材料合成用加热装置 |
CN202594786U (zh) * | 2012-05-14 | 2012-12-12 | 河南飞孟金刚石工业有限公司 | 一种合成立方氮化硼的加热装置 |
CN205262628U (zh) * | 2015-12-24 | 2016-05-25 | 河南四方达超硬材料股份有限公司 | 六面顶压机合成腔内径向温度测量装置 |
CN106116567A (zh) * | 2016-06-22 | 2016-11-16 | 刘和来 | 高密度纳米钛酸钡陶瓷的制备方法 |
CN111025055A (zh) * | 2019-12-04 | 2020-04-17 | 四川大学 | 一种用于高应力、大变形环境的导电介质、组装件及其应用 |
CN216449047U (zh) * | 2022-04-07 | 2022-05-06 | 南方科技大学 | 一种测试装置 |
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