Cubic boron nitride large single crystal synthesis device
By adopting a multi-stage stirring and forming mechanism in the cubic boron nitride large single crystal synthesis device, the problem of uneven raw materials is solved, and efficient and uniform stirring and forming of cubic boron nitride is achieved, which improves the thermal stability and application of the material. Effect.
Patent Information
- Application Number
- CN202420725376.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The existing cubic boron nitride large single crystal synthesis device causes uneven raw materials during the mixing process, affecting the thermal stability and application effect of the crystal.
A cubic boron nitride large single crystal synthesis device is designed, using a multi-stage stirring mechanism and forming mechanism. Through the cooperation of the stirring rod and the bristle column, uniform stirring of raw materials and cleaning of the filter plate are achieved, and then hydraulic cylinders and high-temperature furnaces are used. Perform extrusion molding of materials.
The uniform dispersion and optimal form of raw materials are achieved, the filter plate is blocked, and the thermal stability and application effect of cubic boron nitride are improved.
Smart Images
Figure CN222455300U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cubic boron nitride synthesis, and more specifically, to a cubic boron nitride large single crystal synthesis device. Background Art
[0002] Cubic boron nitride is a typical III-V compound crystal material. Like diamond, it belongs to the superhard material category. It has a hardness second only to diamond and chemical and thermal stability superior to diamond. It is used as a superabrasive to make grinding wheels, oilstones, cutting tools, etc. It has been widely used in modern mechanical processing, especially in the field of precision machining synthesis. In precision and ultra-precision machining at high speed, cubic boron nitride single crystals synthesized from large cubic boron nitride single crystals are required.
[0003] In the prior art, the method for producing synthetic industrial sieve-graded cubic boron nitride single crystals is to use hexagonal boron nitride as a raw material, and transform it into fine-grained single crystal micropowder through a high temperature and high pressure process with the participation of a catalyst material. Since the large single crystal synthesis device of cubic boron nitride in the prior art only uses a motor to drive a stirring rod to mix the cubic boron nitride and the fine-grained single crystal micropowder, the fine-grained single crystal micropowder remaining at the bottom of the box is unevenly mixed with the cubic boron nitride, so that it has no complete crystal surface during subsequent hot pressing molding, and the thermal stability is poor, thereby affecting the application effect of cubic boron nitride. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a large cubic boron nitride single crystal synthesis device to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A large cubic boron nitride single crystal synthesis device comprises a synthesis box, a partition frame is arranged inside the synthesis box, a molding mechanism is arranged at the bottom of the partition frame, and a stirring mechanism is arranged inside the synthesis box;
[0007] The stirring mechanism includes a chassis arranged on one side of the synthesis box, a motor is arranged inside the chassis, an output end of the motor is coaxially connected to a rotating rod, one end of the rotating rod is rotatably connected to the inner wall of the synthesis box, a movable sleeve is arranged on the rotating rod, a plurality of first stirring rods are arranged on the surface of the movable sleeve, a second stirring rod is arranged at one end of each of the plurality of first stirring rods, the cross-section of the second stirring rod is arranged to be L-shaped, and a plurality of bristle columns are arranged on the surface of the second stirring rod.
[0008] By adopting the above technical solution: in order to fully stir the raw materials, thereby ensuring that the materials are evenly dispersed and achieve the best form, and effectively prevent the filter plate from being blocked during the working process.
[0009] As a further description of the above technical solution: a slide groove is provided inside the partition frame, a slider is provided inside the slide groove, and a filter plate is provided on one side of the slider.
[0010] By adopting the above technical solution: it is convenient to disassemble and clean the filter plate.
[0011] As a further description of the above technical solution: the forming mechanism includes a hydraulic cylinder arranged at the bottom of the partition frame, a lower pressure plate is arranged at the bottom of the hydraulic cylinder, a heat insulation layer is arranged on the surface of the lower pressure plate, a radian plate is arranged inside the synthesis box, a fixing groove is opened on the surface of the radian plate, a forming seat is arranged inside the fixing groove, and a placement groove is opened inside the forming seat.
[0012] By adopting the above technical solution: in order to facilitate the extrusion shaping of raw materials, the work efficiency is improved.
[0013] As a further description of the above technical solution: the surface of the forming seat is provided with inner bricks, a high-temperature furnace is provided on one side of the inner bricks, one side of the high-temperature furnace is electrically connected to a controller, an insulation board is provided at the bottom of the high-temperature furnace, a discharge plate is slidably connected to the inside of the insulation board, a handle is provided on one side of the discharge plate, an inclined plate is provided at the bottom of the insulation board, universal wheels are provided at the four corners of the bottom of the synthesis box, two feed pipes are provided on the top of the synthesis box, and one side of the two feed pipes is provided with an electromagnetic valve.
[0014] By adopting the above technical solution: it is convenient to load and unload materials, and the operation is convenient, fast, time-saving and labor-saving.
[0015] Technical effects and advantages of the utility model:
[0016] 1. By setting a stirring mechanism, compared with the prior art, the motor inside the chassis is used to drive the rotating rod to rotate, so that the movable sleeve drives the first stirring rod and the second stirring rod to rotate. The first stirring rod can stir and mix the raw materials inside the synthesis box. At the same time, during the rotation of the second stirring rod, the bristle column on the surface will scrape the raw materials accumulated on the surface of the filter plate, thereby ensuring that the materials are evenly dispersed during the stirring process to achieve the best form, and effectively preventing the filter plate from being blocked during the working process. After long-term use, the filter plate can also be removed for cleaning;
[0017] 2. By setting up a forming mechanism, compared with the prior art, the evenly stirred raw materials fall onto the surface of the radian plate through the filter plate. The radian plate has a certain inclination angle, so that it falls into the inside of the forming seat. At the same time, the high-temperature furnace is started by the controller to heat the internal brickwork, and then the hydraulic cylinder is started to drive the lower pressure plate to move downward, pressurize at a uniform speed and enter the placement groove to extrude the raw materials. After the pressurization is completed, the pressure is reduced at a uniform speed. High temperature and high pressure are beneficial to the stability and density of the material shape. The time and temperature are controlled by the controller, so that the operation is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0019] Figure 2 This is a schematic diagram of the stirring mechanism structure of the utility model.
[0020] Figure 3 This is a schematic diagram of the partition frame structure of the utility model.
[0021] Figure 4 It is a schematic diagram of the molding mechanism structure of the utility model.
[0022] Figure 5 It is a schematic diagram of the overall cross-sectional structure of the utility model.
[0023] The accompanying drawings are marked as follows: 1. synthesis box; 2. partition frame; 3. chassis; 4. rotating rod; 5. movable sleeve; 6. first stirring rod; 7. second stirring rod; 8. brush column; 9. slider; 10. filter plate; 11. hydraulic cylinder; 12. lower pressure plate; 13. radian plate; 14. forming seat; 15. placement groove; 16. inner brickwork; 17. high temperature furnace; 18. controller; 19. insulation board; 20. unloading plate; 21. tilting plate; 22. universal wheel; 23. feed pipe; 24. solenoid valve. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] The embodiments of this application disclose Figure 1-5 A cubic boron nitride large single crystal synthesis device is shown, comprising a synthesis box 1, a partition frame 2 is arranged inside the synthesis box 1, a molding mechanism is arranged at the bottom of the partition frame 2, and a stirring mechanism is arranged inside the synthesis box 1;
[0026] The stirring mechanism includes a chassis 3 arranged on one side of the synthesis box 1, a motor is arranged inside the chassis 3, the output end of the motor is coaxially connected with a rotating rod 4, one end of the rotating rod 4 is rotatably connected to the inner wall of the synthesis box 1, a movable sleeve 5 is arranged on the rotating rod 4, a plurality of first stirring rods 6 are arranged on the surface of the movable sleeve 5, a second stirring rod 7 is arranged at one end of the plurality of first stirring rods 6, a cross section of the second stirring rod 7 is arranged in an L shape, a plurality of bristle columns 8 are arranged on the surface of the second stirring rod 7, a slide groove is opened inside the partition frame 2, a slider 9 is arranged inside the slide groove, a filter plate 10 is arranged on one side of the slider 9, the motor inside the chassis 3 is started, the rotating rod 4 is driven to rotate, and the rotating rod 4 drives the movable sleeve 5 to rotate, so that the movable sleeve 5 drives the first stirring rod 6 and the second stirring rod 7 to rotate. The first stirring rod 6 can stir and mix the raw materials inside the synthesis box 1. At the same time, during the rotation of the second stirring rod 7, the brush column 8 on the surface will scrape the raw materials accumulated on the surface of the filter plate 10, thereby ensuring that the materials are evenly dispersed during the stirring process to achieve the best form, and effectively preventing the filter plate 10 from being blocked during the working process. After long-term use, the box door can be opened to pull the filter plate 10 outward, so that the slider 9 moves inside the slide groove to play a limiting role, so that the filter plate 10 can be removed for cleaning.
[0027] Reference Figure 3-4 As shown, the forming mechanism includes a hydraulic cylinder 11 arranged at the bottom of the partition frame 2, a lower pressure plate 12 is arranged at the bottom of the hydraulic cylinder 11, a heat insulation layer is arranged on the surface of the lower pressure plate 12, a camber plate 13 is arranged inside the synthesis box 1, a fixing groove is provided on the surface of the camber plate 13, a forming seat 14 is arranged inside the fixing groove, a placement groove 15 is provided inside the forming seat 14, an inner brick 16 is arranged on the surface of the forming seat 14, a high-temperature furnace 17 is arranged on one side of the inner brick 16, a controller 18 is electrically connected to one side of the high-temperature furnace 17, and the high-temperature furnace The bottom of 17 is provided with a heat insulation plate 19, and the evenly stirred raw materials fall onto the surface of the radian plate 13 through the filter plate 10. The radian plate 13 has a certain inclination angle, so that it falls into the inside of the forming seat 14. At the same time, the high-temperature furnace 17 is started by the controller 18 to heat the inner brickwork 16, and then the hydraulic cylinder 11 is started to drive the lower pressure plate 12 to move downward, pressurize at a uniform speed and enter the placement groove 15, so as to squeeze the raw materials. After the pressurization is completed, the pressure is reduced at a uniform speed. High temperature and high pressure are conducive to the stability and density of the material shape.
[0028] Reference Figure 4-5As shown, the inside of the heat insulation plate 19 is slidably connected with a discharge plate 20, a handle is provided on one side of the discharge plate 20, an inclined plate 21 is provided at the bottom of the heat insulation plate 19, and universal wheels 22 are provided at the four corners of the bottom of the synthesis box 1. Two feeding pipes 23 are provided on the top of the synthesis box 1, and solenoid valves 24 are provided on one side of the two feeding pipes 23. The two solenoid valves 24 are opened to allow a certain proportion of cubic boron nitride and single crystal raw materials to enter the synthesis box 1 from the two feeding pipes 23 respectively, so that the feeding is convenient. The discharge plate 20 is pulled outward by holding the handle, so that the extruded raw materials fall into the inclined plate 21, and the obtained high-temperature and high-pressure synthetic products are collected by the staff.
[0029] Working principle of the utility model: when the utility model is used, first open the two solenoid valves 24 to allow a certain proportion of cubic boron nitride and single crystal raw materials to enter the synthesis box 1 from the two feeding pipes 23 respectively, and then start the motor inside the chassis 3 to drive the rotating rod 4 to rotate, and the rotating rod 4 drives the movable sleeve 5 to rotate, so that the movable sleeve 5 drives the first stirring rod 6 and the second stirring rod 7 to rotate, and the first stirring rod 6 can stir and mix the raw materials inside the synthesis box 1, and at the same time, during the rotation of the second stirring rod 7, the brush column 8 on the surface will scrape the raw materials accumulated on the surface of the filter plate 10, and then ensure that the materials are evenly dispersed during the stirring process to achieve the best shape, and effectively prevent the filter plate 10 from being blocked during the working process. After long-term use, the box door can be opened to pull the filter plate 10 outward, so that the slider 9 moves inside the slide groove to play a limiting role, so that the filter plate 10 can be removed for cleaning;
[0030] Then the evenly stirred raw materials pass through the filter plate 10 and fall onto the surface of the radian plate 13. The radian plate 13 has a certain inclination angle, so that it falls into the molding seat 14. At the same time, the high-temperature furnace 17 is started by the controller 18 to heat the inner brickwork 16. Then the hydraulic cylinder 11 is started to drive the lower pressure plate 12 to move downward, pressurize at a uniform speed and enter the placement groove 15 to extrude the raw materials. After the pressurization is completed, the pressure is reduced at a uniform speed. High temperature and high pressure are beneficial to the stability and density of the material shape. By controlling the time and temperature, the material can be prevented from being over-sintered or unstable in shape. Then, the handle is held and the unloading plate 20 is pulled outward, so that the extruded raw materials fall into the inclined plate 21, and the obtained high-temperature and high-pressure composite is collected by the staff.
[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A large cubic boron nitride single crystal synthesis device, comprising a synthesis box (1), characterized in that: A partition frame (2) is arranged inside the synthesis box (1), a molding mechanism is arranged at the bottom of the partition frame (2), and a stirring mechanism is arranged inside the synthesis box (1); The stirring mechanism comprises a chassis (3) arranged on one side of a synthesis box (1), a motor being arranged inside the chassis (3), an output end of the motor being coaxially connected to a rotating rod (4), one end of the rotating rod (4) being rotatably connected to an inner wall of the synthesis box (1), a movable sleeve (5) being arranged on the upper sleeve of the rotating rod (4), a plurality of first stirring rods (6) being arranged on the surface of the movable sleeve (5), a second stirring rod (7) being arranged at one end of each of the plurality of first stirring rods (6), a cross section of the second stirring rod (7) being arranged in an L shape, and a plurality of bristle columns (8) being arranged on the surface of the second stirring rod (7).
2. A large cubic boron nitride single crystal synthesis device according to claim 1, characterized in that: A slide groove is provided inside the partition frame (2), a slider (9) is provided inside the slide groove, and a filter plate (10) is provided on one side of the slider (9).
3. The device for synthesizing a large cubic boron nitride single crystal according to claim 1, characterized in that: The forming mechanism comprises a hydraulic cylinder (11) arranged at the bottom of the partition frame (2), a lower pressure plate (12) is arranged at the bottom of the hydraulic cylinder (11), and a heat insulation layer is arranged on the surface of the lower pressure plate (12).
4. The device for synthesizing a large cubic boron nitride single crystal according to claim 1, characterized in that: The synthesis box (1) is provided with a camber plate (13) inside, a fixing groove is provided on the surface of the camber plate (13), a forming seat (14) is provided inside the fixing groove, and a placement groove (15) is provided inside the forming seat (14).
5. The device for synthesizing a large cubic boron nitride single crystal according to claim 4, characterized in that: The surface of the forming seat (14) is provided with inner bricks (16), a high-temperature furnace (17) is provided on one side of the inner bricks (16), a controller (18) is electrically connected to one side of the high-temperature furnace (17), and a heat insulation board (19) is provided at the bottom of the high-temperature furnace (17).
6. The device for synthesizing a large cubic boron nitride single crystal according to claim 5, characterized in that: A discharge plate (20) is slidably connected to the interior of the heat insulation plate (19), a handle is provided on one side of the discharge plate (20), and an inclined plate (21) is provided at the bottom of the heat insulation plate (19).