Ultrahigh-temperature sintering furnace heating assembly and ultrahigh-temperature sintering furnace device
The dual high-temperature system in sintering furnaces addresses the temperature limitations of conventional furnaces by superimposing heating principles, achieving ultra-high temperatures above 3600°C to improve material purity and crystallinity.
Patent Information
- Application Number
- CN202323310177.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-05
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-05
AI Technical Summary
Existing sintering furnaces are limited by insufficient heating temperatures, primarily reaching up to 3000°C, which hinders ultra-high temperature sintering and results in low material purity and crystallinity.
A dual high-temperature system comprising a bottom heating component with a heater and a top heating component with an electron beam, ion beam, or laser emitting device is employed, allowing for superposition of heating principles to achieve temperatures above 3600°C.
The dual heating system effectively increases sintering temperatures, enhancing material purity and crystallinity by transforming amorphous structures into stable crystalline forms, breaking the temperature limits of conventional furnaces.
Smart Images
Figure CN222165719U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ultra-high temperature heating equipment, in particular to an ultra-high temperature sintering furnace heating component and an ultra-high temperature sintering furnace device. Background Art
[0002] At present, the heating sintering furnaces on the market are mainly heated by resistive heaters, mainly by external heating, that is, the furnace body is first heated to the sintering temperature, and then the heat is transferred to the heated material by heat conduction and radiation, and the heat is transferred to the inside of the material, causing the vibration of the object's phonons and the temperature to rise. This method has a long heating time, and the upper limit of its heating temperature is limited by the temperature that the heater itself can reach. At present, the materials with the highest heating temperature are graphite heaters and tungsten metal heaters, which can reach 3000℃, which is also the limit temperature of the heating temperature of the existing high-temperature sintering furnace. Another patent CN203550534 U mentions the use of microwave assisted heating to assist the heater in heating, but the microwave heating temperature is limited, and it can only be heated within a low temperature range of several hundred degrees Celsius. It is not very helpful in terms of temperature increase, and can only increase the heating speed in the low temperature section. However, many materials are currently limited by insufficient heating temperature, especially the inability to achieve continuous and stable heating within the temperature range of 3600-4000℃, and the purity of the sintered materials is not high, making it difficult to improve the quality.
[0003] Therefore, the above technology has the problem that the heating temperature of the sintering furnace is insufficient and cannot meet the requirement of ultra-high temperature sintering of materials. Utility Model Content
[0004] The technical problem to be solved by the utility model is that the heating temperature of the existing sintering furnace is insufficient and cannot meet the needs of ultra-high temperature sintering, resulting in insufficient purity and crystallinity of the material.
[0005] In order to solve the above technical problems, the technical solution of the utility model is to provide an ultra-high temperature sintering furnace heating component, which adopts a heating mode of superimposed dual high-temperature systems, including a bottom heating component and a top heating component, which are arranged relatively to each other, and the bottom heating component includes a heater, and the top heating component includes an emitting device, which is an electron beam emitting device, an ion beam emitting device and / or a laser emitting device.
[0006] Optionally, the bottom heating component further includes a heating groove, which is arranged at the bottom and around the heater, and the top heating component further includes a generator, which is connected to the emission device.
[0007] An ultra-high temperature sintering furnace device includes the above-mentioned ultra-high temperature sintering furnace heating component and a sintering furnace body, wherein the sintering furnace body includes a top outer wall and a bottom outer wall, the bottom heating component is arranged inside the bottom outer wall of the sintering furnace body, and the emitting device of the top heating component is arranged in the top outer wall of the sintering furnace body.
[0008] By adopting the above technical solution, an emission device and a heater are set in the sintering furnace, and the object is heated by using two heating physical principles, which effectively realizes the superposition of temperature, increases the sintering temperature, and thus improves the purity and crystallinity of the heated object.
[0009] Optionally, a thermal insulation layer is provided between the outside of the heating tank of the bottom heating assembly and the bottom outer wall.
[0010] Optionally, the emitting device of the top heating assembly is arranged on the top wall of the top outer wall, and the emitting device is opposite to the heating groove, and the generator of the top heating assembly is arranged outside the top outer wall.
[0011] Optionally, a water cooling pipe is provided between the emitting device of the top heating assembly and the top outer wall, the water cooling pipe is externally connected to a water cooling device, and an infrared optical temperature meter is provided on the side wall of the top outer wall.
[0012] Optionally, it also includes a circulating water cooling component and a vacuum component, wherein the circulating water cooling component is connected to the top outer wall and the bottom outer wall of the sintering furnace body, and the vacuum component is connected to the bottom outer wall of the sintering furnace body.
[0013] Optionally, the circulating water cooling assembly includes a circulating cooling pipeline and a circulating water cooling device, the circulating cooling pipeline is provided with two, respectively connected to the top outer wall and the bottom outer wall, the circulating water cooling device is connected to the circulating cooling pipeline and is arranged outside the sintering furnace body.
[0014] Optionally, the vacuum component includes a vacuum regulating pipeline and a vacuum pump, one end of the vacuum regulating pipeline extends into the bottom outer wall and is located above the bottom heating component, the other end of the vacuum regulating pipeline is connected to the vacuum pump, and a vacuum display detection instrument is also provided on the vacuum regulating pipeline.
[0015] Optionally, a bottom bracket is provided below the bottom outer wall, the top outer wall and the bottom outer wall are detachably connected, and a high-temperature sealing strip is provided at the connection between the two.
[0016] In summary, the utility model has at least one of the following beneficial effects:
[0017] 1. The present invention adopts two physical heating principles, heating by heating element and electron beam heating, to heat the object. Heating by heating element is achieved by intensifying the movement of electrons inside the material, and electron beam heating is achieved by transferring energy to the object through the collision bombardment of high-energy electrons. It creatively realizes the superposition of ultra-high temperatures and can make the sintering temperature reach a higher level.
[0018] 2. The present invention breaks through the limit of the heating temperature of the prior art by increasing the sintering temperature. The heating temperature can stably reach above 3600°C. When heating an object, the impurities of the object are more effectively removed, the internal structure of the heated object is recombined and transformed, and the amorphous structure is transformed into a more stable crystalline structure, thereby improving the purity and crystallinity of the material;
[0019] 3. The overall design of the equipment of the present invention is reasonable. The temperature superposition method is the first of its kind in the current high-temperature heating equipment. The high temperature achieved also breaks the limit of existing heating equipment. The successful manufacture and batch use of the equipment will create greater possibilities for the processing and manufacturing of many existing metal materials, carbon materials, inorganic materials, etc., improve material structure, enhance performance, etc., and will play a revolutionary role in the entire materials industry in the future. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the bottom outer wall structure of the utility model;
[0022] Figure 3 This is a schematic diagram of the top outer wall structure of the utility model;
[0023] In the figure: 1. Sintering furnace body; 11. Top outer wall; 12. Bottom outer wall; 2. Circulating water cooling assembly; 21. Circulating cooling pipeline; 22. Circulating water cooling equipment; 3. Vacuum assembly; 31. Vacuum regulating pipeline; 32. Vacuum pump; 33. Vacuum display detection instrument; 4. Bottom heating assembly; 41. Heating tank; 42. Thermal insulation layer; 43. Heater; 5. Top heating assembly; 51. Transmitter; 52. Generator; 6. Infrared optical thermometer; 7. Bottom bracket; 8. Water cooling pipe. DETAILED DESCRIPTION
[0024] The following is combined with Figure 1-3 The utility model is described in further detail.
[0025] The utility model discloses a heating component for an ultra-high temperature sintering furnace, which adopts a heating mode of superimposed dual high temperature systems. The core of the heating component is divided into a bottom heating component 4 and a top heating component 5, which are arranged relatively to each other. The bottom heating component 4 includes a heater 43 and a heating groove 41, and the heating groove 41 is arranged at the bottom and around the heater 43. The top heating component includes an emitting device 51 and a generator 52. The emitting device 51 is an electron beam emitting device, an ion beam emitting device and / or a laser emitting device, and the generator 52 is connected to the emitting device 51.
[0026] Example
[0027] The utility model also discloses an ultra-high temperature sintering furnace device, referring to Figure 1 , including the above-mentioned ultra-high temperature sintering furnace heating component, and also including a sintering furnace body 1, a circulating water cooling component 2 and a vacuum component 3; the sintering furnace body 1 includes a top outer wall 11 and a bottom outer wall 12, the top outer wall 11 and the bottom outer wall 12 are detachably connected, and a high-temperature sealing strip is provided at the connection between the two, and a bottom heating component 4 and a top heating component 5 are provided on the sintering furnace body 1, the bottom heating component 4 is arranged inside the bottom outer wall 12 of the sintering furnace body 1, and the emitting device of the top heating component 5 is arranged in the top outer wall 11 of the sintering furnace body 1; the circulating water cooling component 2 is connected to the top outer wall 11 and the bottom outer wall 12 of the sintering furnace body 1; the vacuum component 3 is connected to the bottom outer wall 12 of the sintering furnace body 1, and a bottom bracket 7 is provided below the bottom outer wall 12.
[0028] In a further embodiment, referring to Figure 2 The heating groove 41 of the bottom heating component 4 is located in the bottom outer wall 12, and a thermal insulation layer 42 is provided between the heating groove 41 and the bottom outer wall 12, and the heater 43 is externally connected to a power supply; in this embodiment, the heater uses graphite, and the graphite heater is arranged around and at the bottom of the heating groove 41, and the heating power is 10kW. The thermal insulation layer 42 is thermal insulation graphite felt. In other embodiments, the heater and the thermal insulation material are not limited to these two types, and any heater that can be sintered and heated and any material that can be kept warm at high temperature can be used; the size of the heating groove 41 is 15 cm in diameter and 5 cm in height, that is, ×5cm, the thermal insulation layer 42 is in the shape of a ring with a height of 5cm, an inner diameter of 15cm and an outer diameter of 40cm, and the bottom outer wall 12 has a diameter of 40cm, a height of 10cm and a wall thickness of 5cm.
[0029] In a further embodiment, referring to Figure 1 and Figure 3, the transmitting device 51 is arranged on the top wall of the top outer wall 11, and the transmitting device is opposite to the heating groove 41, the generator 52 is arranged outside the top outer wall 11, and is connected to the transmitting device, an infrared optical thermometer 6 is provided on the side wall of the top outer wall 11 for detecting the internal temperature of the sintering furnace body 1, and a water cooling pipe 8 is provided between the transmitting device and the top outer wall 11, and the water cooling pipe 8 is connected to an external water cooling device (not shown in the figure); in this embodiment, the top outer wall 11 has a height of 40 cm, a diameter of 40 cm, and a wall thickness of 5 cm, the transmitting device has a diameter of 15 cm, a height of 20 cm, and a power of the generator 52 is 12 kW. The transmitting device is connected to a water cooling pipe 8 with a diameter of 5 mm to cool it down to prevent damage caused by excessive temperature. The water cooling pipe 8 is connected to an external water cooling device, and the infrared optical thermometer 6 is obliquely inserted into the middle part of the side wall of the top outer wall 11 at an angle of 45°, and the temperature detection range is 0-4000°C.
[0030] In a further embodiment, referring to Figure 1 The circulating water cooling assembly 2 includes a circulating cooling pipeline 21 and a circulating water cooling device 22. The circulating cooling pipeline 21 is provided with two, which are respectively connected to the top outer wall 11 and the bottom outer wall 12. The circulating water cooling device 22 is connected to the circulating cooling pipeline 21 and is arranged outside the sintering furnace body 1 for circulating cooling of non-heating parts.
[0031] In a further embodiment, referring to Figure 1 The vacuum component 3 includes a vacuum regulating pipeline 31 and a vacuum pump 32. One end of the vacuum regulating pipeline 31 extends into the bottom outer wall 12 and is located above the bottom heating component 4. The other end of the vacuum regulating pipeline 31 is connected to the vacuum pump 32. A vacuum display detection instrument 33 is also provided on the vacuum regulating pipeline 31.
[0032] The working principle of the utility model is as follows: when the top heating component 5 uses an electron beam emitting device, it uses electrons moving at high speed under the action of an electric field to bombard the surface of an object to heat it, wherein the electrons emitted by the generator 52 are accelerated to a very high speed under the action of an accelerating electric field, and are focused by an electromagnetic lens so that the electron beam is directed toward the heated object in a certain direction, while the heating temperature of a single electron beam is limited, and the object is heated by causing the movement of phonons of the heated object to increase its temperature through the movement of high-energy electrons; at the same time, the heater 43 converts electrical energy into thermal energy, and heats the object mainly through heat conduction and heat radiation, and heating by the heater 43 alone cannot make the temperature of the heated object exceed that of the heater 43 itself, while the mode of phonon movement of the object induced by the electrons of the electron beam may not be affected by the heating mode of the heater phonons on the heated object, and the superposition of the two heating energies can be achieved, thereby achieving a superposition increase in the temperature of the heated object;
[0033] The heating principle of the top heating component 5 when using an ion beam emission device is to generate a large amount of Ar gas plasma through inductive coupling technology or a high-voltage and high-frequency generator, and then use the high-speed movement of the plasma to bombard the surface of the object, transfer energy to the object, and cause continuous high-speed thermal motion between the molecules and atoms inside the object, thereby increasing the temperature of the object. Since the plasma state Ar may damage the material during the process, it is necessary to control the corresponding parameters and energy, and at the same time cooperate with the physical high-temperature heating device that heats the bottom of the object to achieve the superposition of the two energies.
[0034] The top heating component 5 uses the laser heating principle. A laser generator generates high-energy laser (single photon 24eV). The laser is irradiated on the surface of the heated object. The material absorbs the photon energy to increase the temperature. The more it absorbs, the higher the energy. This makes up for the temperature limit of energy transfer during simple resistance heating. As the heating time increases, the temperature continues to rise to achieve ultra-high temperature superposition.
[0035] When the utility model is in use, the object to be sintered is placed in the heating groove 41, and then the top outer wall 11 and the bottom outer wall 12 are connected, the vacuum pump 32 is turned on, the inside of the sintering furnace body 1 is evacuated, and then the bottom heating component 4 and the top heating component 5 are turned on at the same time to heat the object, and the infrared optical thermometer 6 is used for detection, the heating temperature of the top heating component 5 is adjusted according to the displayed temperature, and the circulating water cooling component 2 is used to circulate and cool the non-heating parts, and finally the object is heated to the required temperature. The utility model adopts two physical heating principles to heat the object, effectively realizes the superposition of temperature, breaks through the limit of the heating temperature of the prior art, and the heating temperature can stably reach above 3600°C, thereby improving the purity and crystallinity of the heated object. In addition, the overall equipment design of the utility model is reasonable, and the manufacturing technology of each component is mature and easy to implement.
[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A heating component for an ultra-high temperature sintering furnace, characterized in that: A heating mode of superimposed dual high-temperature systems is adopted, comprising a bottom heating component (4) and a top heating component (5), which are arranged opposite to each other, wherein the bottom heating component (4) comprises a heater (43), and the top heating component comprises an emitting device (51), and the emitting device (51) is an electron beam emitting device, an ion beam emitting device and / or a laser emitting device; The bottom heating component (4) further comprises a heating groove (41), wherein the heating groove (41) is arranged at the bottom and around the heater (43), and the top heating component (5) further comprises a generator (52), wherein the generator (52) is connected to the emission device (51).
2. An ultra-high temperature sintering furnace device, characterized in that: It comprises the ultra-high temperature sintering furnace heating component as described in claim 1, and also comprises a sintering furnace body (1), wherein the sintering furnace body (1) comprises a top outer wall (11) and a bottom outer wall (12), the bottom heating component (4) is arranged inside the bottom outer wall (12) of the sintering furnace body (1), and the emitting device (51) of the top heating component (5) is arranged in the top outer wall (11) of the sintering furnace body (1).
3. The ultra-high temperature sintering furnace device according to claim 2, characterized in that: A heat-insulating layer (42) is provided between the outside of the heating groove (41) of the bottom heating assembly (4) and the bottom outer wall (12).
4. The ultra-high temperature sintering furnace device according to claim 2, characterized in that: The emitting device (51) of the top heating component (5) is arranged on the top wall of the top outer wall (11), and the emitting device (51) is opposite to the heating groove (41), and the generator (52) of the top heating component (5) is arranged outside the top outer wall (11).
5. The ultra-high temperature sintering furnace device according to claim 2, characterized in that: A water cooling pipe (8) is provided between the emitting device (51) of the top heating component (5) and the top outer wall (11); the water cooling pipe (8) is connected to an external water cooling device; and an infrared optical temperature measuring device (6) is provided on the side wall of the top outer wall (11).
6. The ultra-high temperature sintering furnace device according to claim 2, characterized in that: It also includes a circulating water cooling component (2) and a vacuum component (3), wherein the circulating water cooling component (2) is connected to the top outer wall (11) and the bottom outer wall (12) of the sintering furnace body (1), and the vacuum component (3) is connected to the bottom outer wall (12) of the sintering furnace body (1).
7. The ultra-high temperature sintering furnace device according to claim 6, characterized in that: The circulating water cooling assembly (2) comprises a circulating cooling pipeline (21) and a circulating water cooling device (22); the circulating cooling pipeline (21) is provided with two, respectively connected to the top outer wall (11) and the bottom outer wall (12); the circulating water cooling device (22) is connected to the circulating cooling pipeline (21) and is arranged outside the sintering furnace body (1).
8. The ultra-high temperature sintering furnace device according to claim 6, characterized in that: The vacuum assembly (3) comprises a vacuum regulating pipeline (31) and a vacuum pump (32); one end of the vacuum regulating pipeline (31) extends into the bottom outer wall (12) and is located above the bottom heating assembly (4); the other end of the vacuum regulating pipeline (31) is connected to the vacuum pump (32); and a vacuum display detection instrument (33) is also provided on the vacuum regulating pipeline (31).
9. The ultra-high temperature sintering furnace device according to claim 2, characterized in that: A bottom bracket (7) is provided below the bottom outer wall (12), and the top outer wall (11) is detachably connected to the bottom outer wall (12), and A high-temperature sealing strip is provided at the connection between the two.