High-temperature sintering dust-free acid-resistant graphite boat preparation integrated equipment

The graphite boat is driven to rotate by a rotating rod and a bevel gear mechanism. Combined with a vacuum environment and an electromagnet sealing structure, the problems of low heating efficiency and uneven heating in high-temperature sintering devices are solved, and uniform heating of the graphite boat and protection of material purity are achieved.

CN224202205UActive Publication Date: 2026-05-05WUXI DINGQIAO NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI DINGQIAO NEW ENERGY TECH CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The existing high-temperature sintering equipment has low heating efficiency, resulting in uneven heating of the graphite boat, especially the part closer to the heating source is heated first, while the part farther away from the heating source absorbs less heat.

Method used

The graphite boat is held in place by a rotating rod and a bevel gear mechanism, and is driven to rotate by a motor, so that the top and bottom surfaces are heated simultaneously. Combined with a vacuum environment and an electromagnet sealing structure, the heating uniformity and sealing performance are ensured.

Benefits of technology

It improves heating efficiency, prevents uneven heating, ensures uniform heating of the graphite boat and the purity of the material, and reduces the impact of external air on heating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides high-temperature sintering dust-free acid-resistant graphite boat preparation integrated equipment, and relates to the technical field of graphite boat preparation, the high-temperature sintering dust-free acid-resistant graphite boat preparation integrated equipment comprises a shell, a fixed frame is fixedly mounted on the inner wall of the shell, and a plurality of first rotating shafts and second rotating shafts which are uniformly distributed are rotationally mounted on the two sides in the fixed frame through bearings respectively; when the graphite boat clamping device is used, a worker enables one end of a graphite boat to be attached to an elastic pad on a rotating plate, then a grip is rotated, the grip drives a second threaded rod to rotate, the second threaded rod moves along a second threaded hole, then a clamping plate is driven to move till an elastic pad on the clamping plate is attached to the other side of the graphite boat, and at the moment, the graphite boat is clamped; during heating, a worker starts the motor, the output end of the motor drives the rotating rod to rotate, then the first bevel gear is driven to rotate, and the graphite boat is driven to rotate through the second bevel gear, so that the heating time of the top surface and the bottom surface of the graphite boat is equal, and the heating efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of graphite boat preparation technology, and in particular to an integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats. Background Technology

[0002] Graphite boats are typically boat-shaped or trough-shaped, with a certain depth and width to accommodate the material to be processed. They are generally constructed from spliced ​​graphite sheets, with a relatively simple structure, but their design must consider ease of material placement and removal, as well as stability and strength at high temperatures. Graphite boats are generally made of high-purity graphite materials, typically with a purity of over 99%, to reduce contamination of the processed materials by impurities. During the preparation of graphite boats, they usually need to be cleaned in a cleaning unit, and then immersed in a modified solution prepared in a solution preparation unit to modify the surface of the graphite boat. Next, they are dried in a drying unit to allow the coating to initially solidify. Finally, in a high-temperature sintering unit, under the action of high temperature and a specific atmosphere, the coating on the surface of the graphite boat further reacts to form a TiC / TiO2 coating, thereby achieving dust-free and acid-resistant properties.

[0003] In existing technologies, the heating methods commonly used in some traditional high-temperature sintering devices, such as resistance wire heating and silicon molybdenum rod heating, typically provide heat from the periphery or bottom of the furnace. Heat is transferred to the graphite boat through radiation and convection. This causes the parts of the graphite boat closer to the heating source (such as the bottom) to heat up first and absorb relatively more heat, while the parts farther from the heating source heat up relatively late and absorb less heat, resulting in lower heating efficiency. Utility Model Content

[0004] This utility model mainly provides an integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats, which facilitates improved heating efficiency and prevents uneven heating.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats, comprising: a shell, a fixed frame fixedly installed on the inner wall of the shell, multiple evenly distributed first and second rotating shafts rotatably installed on both sides of the fixed frame via bearings, one end of the first rotating shaft passing through the fixed frame and fixedly installed with a second bevel gear, one end of the first rotating shaft fixedly installed with a rotating plate, one end of the second rotating shaft fixedly installed with a rotating frame, a second threaded hole penetrating through the outer wall of the rotating frame, a second threaded rod threadedly connected inside the second threaded hole, a handle fixedly installed on one end of the second threaded rod, a clamping plate fixedly installed on one end of the second threaded rod, elastic pads fixedly installed on the side of the clamping plate opposite to the rotating plate, a rotating rod rotatably installed inside the shell, multiple evenly distributed first bevel gears fixedly installed on the outer wall of the rotating rod, the multiple first bevel gears meshing with the multiple second bevel gears respectively, a motor fixedly installed on the outer wall of the shell, and the output end of the motor fixedly connected to one end of the rotating rod.

[0006] Preferably, two fixing plates are symmetrically installed on the outer wall of the shell, and a door is hinged between the two fixing plates. The door is used to prevent the external environment from affecting the interior of the shell.

[0007] Preferably, an L-shaped frame is fixedly installed on the outer wall of the housing. A first threaded hole is opened through the outer wall of the L-shaped frame. A first threaded rod is threadedly connected inside the first threaded hole. A handle is fixedly installed at one end of the first threaded rod. An L-shaped plate is movably connected to the end of the first threaded rod away from the handle. A limit rod is fixedly installed on the outer wall of the L-shaped plate. One end of the limit rod is slidably inserted into the L-shaped frame. When the handle is rotated, the handle drives the first threaded rod to rotate, thereby causing the L-shaped plate to move.

[0008] Preferably, a sealing groove is provided on the outer wall of the housing, and a sealing ring is fixedly installed on the inner wall of the sealing groove. When the insert ring enters the sealing groove and fits with the sealing ring, the sealing performance can be improved.

[0009] Preferably, a limiting groove is formed on the outer wall of the door, an electromagnet is fixedly installed on the inner wall of the limiting groove, and multiple evenly distributed springs are fixedly installed on the outer wall of the electromagnet. One end of each spring is fixedly installed with a retaining ring. When the operator starts the electromagnet, the iron retaining ring is attracted and enters the limiting groove, and the spring is compressed.

[0010] Preferably, an electromagnetic heater is fixedly installed on the top surface inside the housing, and a temperature sensor is fixedly installed on the side wall inside the housing. The temperature sensor is used to observe the internal temperature of the housing and prevent the temperature from becoming too high.

[0011] Preferably, a vacuum pump is fixedly installed on the outer wall of the shell, and the input end of the vacuum pump enters the shell to ensure that the inside of the shell is a vacuum environment during heating, protecting the graphite boat and materials from oxidation, thereby ensuring the purity and performance of the materials.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, during use, the operator places one end of the graphite boat against the elastic pad on the rotating plate, then rotates the handle. The handle drives the second threaded rod to rotate, and the second threaded rod moves along the second threaded hole, thereby driving the clamping plate to move until the elastic pad on the clamping plate is against the other side of the graphite boat. At this time, the graphite boat is clamped. When heating, the operator starts the motor. The output end of the motor drives the rotating rod to rotate, which in turn drives the first bevel gear to rotate, thereby driving the graphite boat to rotate through the second bevel gear. In this way, the top and bottom surfaces of the graphite boat are heated for the same amount of time, thus improving the heating efficiency.

[0014] 2. In this utility model, when the fixing is finished, the operator activates the electromagnet, the iron insert ring is attracted into the limiting groove, the spring is compressed, then the box door is closed, the handle is turned, the handle drives the first threaded rod to rotate, which in turn drives the L-shaped plate to move. The inner wall of the L-shaped plate fits against the outer wall of the box door, fixing the box door. Finally, the spring force of the electromagnet is turned off, pushing the insert ring into the sealing groove and fitting against the sealing ring, which improves the sealing performance and prevents outside air from entering the shell and affecting heating. Attached Figure Description

[0015] Figure 1 This utility model presents an overall three-dimensional view of an integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats;

[0016] Figure 2 This utility model provides a three-dimensional view of the internal structure of the shell of an integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats;

[0017] Figure 3 A three-dimensional view of the fixed frame of an integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats is provided for this utility model.

[0018] Figure 4 for Figure 2 Enlarged view of point A.

[0019] Legend: 1. Housing; 2. Vacuum pump; 3. Motor; 4. Fixing plate; 5. Door; 6. L-shaped frame; 7. First threaded hole; 8. First threaded rod; 9. L-shaped plate; 10. Handle; 11. Limiting rod; 12. Electromagnetic heater; 13. Temperature sensor; 14. Rotating rod; 15. First bevel gear; 16. Fixing frame; 17. First rotating shaft; 18. Second bevel gear; 19. Rotating plate; 20. Elastic pad; 21. Second rotating shaft; 22. Rotating frame; 23. Second threaded hole; 24. Second threaded rod; 25. Handle; 26. Clamping plate; 27. Sealing groove; 28. Sealing ring; 29. ​​Limiting groove; 30. Electromagnet; 31. Spring; 32. Insert ring. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Please see Figures 1-4 This utility model provides a technical solution: an integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats, comprising: a shell 1, a fixed frame 16 fixedly installed on the inner wall of the shell 1, and multiple evenly distributed first rotating shafts 17 and second rotating shafts 21 rotatably mounted on both sides of the fixed frame 16 via bearings, one end of the first rotating shaft 17 passing through the fixed frame 16 and fixedly installed with a second bevel gear 18, one end of the first rotating shaft 17 fixedly installed with a rotating plate 19, and one end of the second rotating shaft 21 fixedly installed with a rotating frame 22, the outer wall of the rotating frame 22 having a second threaded hole 23 through it. A second threaded rod 24 is internally threaded through the threaded hole 23. A handle 25 is fixedly installed at one end of the second threaded rod 24, and a clamping plate 26 is fixedly installed at the other end of the second threaded rod 24. Elastic pads 20 are fixedly installed on the side of the clamping plate 26 opposite to the rotating plate 19. A rotating rod 14 is rotatably installed inside the housing 1. Multiple evenly distributed first bevel gears 15 are fixedly installed on the outer wall of the rotating rod 14. The multiple first bevel gears 15 are respectively meshed with multiple second bevel gears 18. A motor 3 is fixedly installed on the outer wall of the housing 1. The output end of the motor 3 is fixedly connected to one end of the rotating rod 14.

[0023] like Figure 1 As shown, two fixing plates 4 are symmetrically installed on the outer wall of the shell 1, and a door 5 is hinged between the two fixing plates 4. The door 5 is used to prevent the external environment from affecting the interior of the shell 1.

[0024] like Figure 1 As shown, an L-shaped frame 6 is fixedly installed on the outer wall of the housing 1. A first threaded hole 7 is opened through the outer wall of the L-shaped frame 6. A first threaded rod 8 is threadedly connected inside the first threaded hole 7. A handle 10 is fixedly installed at one end of the first threaded rod 8. An L-shaped plate 9 is movably connected to the end of the first threaded rod 8 away from the handle 10. A limit rod 11 is fixedly installed on the outer wall of the L-shaped plate 9. One end of the limit rod 11 is slidably inserted into the L-shaped frame 6. When the handle 10 is rotated, the handle 10 drives the first threaded rod 8 to rotate, thereby causing the L-shaped plate 9 to move.

[0025] like Figure 4 As shown, a sealing groove 27 is provided on the outer wall of the housing 1, and a sealing ring 28 is fixedly installed on the inner wall of the sealing groove 27. When the insert ring 32 enters the sealing groove 27 and fits with the sealing ring 28, the sealing performance can be improved.

[0026] like Figure 4 As shown, a limiting groove 29 is provided on the outer wall of the box door 5. An electromagnet 30 is fixedly installed on the inner wall of the limiting groove 29. Multiple evenly distributed springs 31 are fixedly installed on the outer wall of the electromagnet 30. A retaining ring 32 is fixedly installed at one end of each spring 31. When the operator starts the electromagnet 30, the iron retaining ring 32 is attracted and enters the limiting groove 29, and the spring 31 is compressed.

[0027] like Figure 2 As shown, an electromagnetic heater 12 is fixedly installed on the top surface inside the housing 1, and a temperature sensor 13 is fixedly installed on the side wall inside the housing 1. The temperature sensor 13 is used to observe the internal temperature of the housing 1 and prevent the temperature from getting too high.

[0028] like Figure 1 As shown, a vacuum pump 2 is fixedly installed on the outer wall of the shell 1. The input end of the vacuum pump 2 enters the shell 1 to ensure that the inside of the shell 1 is a vacuum environment during heating, protecting the graphite boat and materials from oxidation, thereby ensuring the purity and performance of the materials.

[0029] The usage and working principle of this device are as follows: During use, the operator places one end of the graphite boat against the elastic pad 20 on the rotating plate 19, and then rotates the handle 25. The handle 25 drives the second threaded rod 24 to rotate, and the second threaded rod 24 moves along the second threaded hole 23, thereby driving the clamping plate 26 to move until the elastic pad 20 on the clamping plate 26 is against the other side of the graphite boat. At this time, the graphite boat is clamped. When heating, the operator starts the motor 3. The output end of the motor 3 drives the rotating rod 14 to rotate, which in turn drives the first bevel gear 15 to rotate, thereby driving the graphite boat to rotate through the second bevel gear 18. In this way, the top and bottom surfaces of the graphite boat are heated for the same amount of time, which improves the heating efficiency. When the fixing process is complete, the operator activates electromagnet 30, causing the iron insert ring 32 to be attracted into the limiting groove 29, compressing the spring 31. Then, the door 5 is closed, and the handle 10 is turned. The handle 10 drives the first threaded rod 8 to rotate, which in turn moves the L-shaped plate 9. The inner wall of the L-shaped plate 9 fits against the outer wall of the door 5, fixing the door 5 in place. Finally, the force of the spring 31 pushes the insert ring 32 into the sealing groove 27, where it fits against the sealing ring 28, improving the seal and preventing outside air from entering the housing 1 and affecting heating. At this time, the operator starts the vacuum pump 2, which draws the air out of the housing 1. Finally, the electromagnetic heater 12 is activated to begin heating.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats, characterized in that, include: The housing (1) has a fixed frame (16) fixedly installed on its inner wall. Multiple evenly distributed first rotating shafts (17) and second rotating shafts (21) are rotatably installed on both sides of the fixed frame (16) through bearings. One end of the first rotating shaft (17) passes through the fixed frame (16) and is fixedly installed with a second bevel gear (18). One end of the first rotating shaft (17) is fixedly installed with a rotating plate (19). One end of the second rotating shaft (21) is fixedly installed with a rotating frame (22). The outer wall of the rotating frame (22) is provided with a second threaded hole (23). The second threaded hole (23) is threadedly connected with a second threaded rod (24). A handle (25) is fixedly installed at one end of the second threaded rod (24), and a clamping plate (26) is fixedly installed at one end of the second threaded rod (24). An elastic pad (20) is fixedly installed on the side of the clamping plate (26) opposite to the rotating plate (19). A rotating rod (14) is rotatably installed inside the housing (1). A plurality of evenly distributed first bevel gears (15) are fixedly installed on the outer wall of the rotating rod (14). The plurality of first bevel gears (15) are respectively meshed with a plurality of second bevel gears (18). A motor (3) is fixedly installed on the outer wall of the housing (1). The output end of the motor (3) is fixedly connected to one end of the rotating rod (14).

2. The integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats according to claim 1, characterized in that: Two fixing plates (4) are symmetrically installed on the outer wall of the shell (1), and a door (5) is hinged between the two fixing plates (4).

3. The integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats according to claim 1, characterized in that: An L-shaped frame (6) is fixedly installed on the outer wall of the housing (1). A first threaded hole (7) is opened through the outer wall of the L-shaped frame (6). A first threaded rod (8) is threadedly connected inside the first threaded hole (7). A handle (10) is fixedly installed at one end of the first threaded rod (8). An L-shaped plate (9) is movably connected at the end of the first threaded rod (8) away from the handle (10). A limit rod (11) is fixedly installed on the outer wall of the L-shaped plate (9). One end of the limit rod (11) is slidably inserted into the L-shaped frame (6).

4. The integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats according to claim 1, characterized in that: The outer wall of the housing (1) is provided with a sealing groove (27), and a sealing ring (28) is fixedly installed on the inner wall of the sealing groove (27).

5. The integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats according to claim 2, characterized in that: The outer wall of the door (5) has a limiting groove (29), an electromagnet (30) is fixedly installed on the inner wall of the limiting groove (29), and a plurality of evenly distributed springs (31) are fixedly installed on the outer wall of the electromagnet (30), with a retaining ring (32) fixedly installed at one end of each spring (31).

6. The integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats according to claim 1, characterized in that: An electromagnetic heater (12) is fixedly installed on the top surface inside the housing (1), and a temperature sensor (13) is fixedly installed on the side wall inside the housing (1).

7. The integrated equipment for preparing high-temperature sintering dust-free acid-resistant graphite boats according to claim 1, characterized in that: A vacuum pump (2) is fixedly installed on the outer wall of the housing (1), and the input end of the vacuum pump (2) enters the housing (1).