Sealing flange for high-temperature sintering

Abstract

The utility model provides a kind of sealing flange for high-temperature sintering, belong to sealing flange technical field, including upper disc and lower disc, the upper disc is located below lower disc, the lateral wall of upper disc is equipped with positioning hole and lower hole, the lateral wall of lower disc is fixedly installed with positioning column, the position of positioning column and positioning hole one-to-one correspondence, the inner wall of upper disc is equipped with condenser pipe and sealing ring, the inner wall of lower disc is fixedly installed with buffer assembly, further include: wrapping component, the wrapping component is located inside lower disc: the utility model has beneficial effect: by being equipped with above-mentioned component, to make two flanges in splicing time will be because heat expansion and cold shrinkage and the deformation that appears and produce leakage problem is relieved, while condenser pipe can quickly neutralize the heat inside upper disc and lower disc, reduce sealing area temperature gradient, prevent because temperature is too high and material performance degradation or sealing failure occurs.

Description

Technical Field

[0001] This utility model relates to the field of sealing flanges, and more specifically, to a sealing flange for high-temperature sintering. Background Technology

[0002] High-temperature sintering is a core process for the preparation of high-end materials such as silicon carbide ceramics and electronic ceramics. Its working conditions are extremely harsh, with long-term operating temperatures reaching 1400-1600℃. It often involves highly corrosive atmospheres such as hydrogen reduction and chlorine corrosion, and requires frequent switching from vacuum to positive pressure. This places extremely high demands on the temperature resistance, corrosion resistance, sealing reliability, and ease of disassembly and assembly of the sealing flange.

[0003] Currently, a type of high-temperature sintering sealing flange on the market seals the flanges by inserting them together. However, it is prone to deformation when subjected to thermal expansion and contraction, leading to a decrease in sealing effect and even leakage. At the same time, ordinary sealing materials are prone to performance degradation in high-temperature environments and cannot maintain good sealing performance for a long time. How to invent a high-temperature sintering sealing flange to improve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0004] To overcome the above deficiencies, this utility model provides a high-temperature sintering sealing flange, which aims to improve the problems of easy deformation when facing thermal expansion and contraction and the degradation of sealing effect due to long-term high temperature.

[0005] This utility model is implemented as follows: This utility model provides a sealing flange for high-temperature sintering, including an upper plate and a lower plate. The upper plate is located below the lower plate. The side wall of the upper plate has positioning holes and a lower hole. Positioning posts are fixedly installed on the side wall of the lower plate, and the positions of the positioning posts correspond one-to-one with the positioning holes. The inner wall of the upper plate is provided with a condenser tube and a sealing ring. The inner wall of the lower plate is fixedly installed with a buffer assembly. The flange also includes: A wrapping assembly located inside the lower plate.

[0006] Preferably, the buffer assembly includes a telescopic rod, which is fixedly connected to the inner wall of the lower plate. A dynamic plate is fixedly installed at one end of the telescopic rod, and the dynamic plate is slidably connected to the inner wall of the lower plate. A second spring is sleeved on the side wall of the telescopic rod.

[0007] Preferably, the two ends of the second spring are fixedly connected to the inner wall of the lower plate and the side wall of the dynamic plate, respectively. The inner wall of the lower plate is provided with a sealing groove, and the sealing groove corresponds to the position of the sealing ring.

[0008] Preferably, the packaging assembly includes a lifting plate, which is slidably connected to the inner wall of the lower plate. The lifting plate is located below the vitality plate. The inner wall of the lower plate has a sliding groove, and the lifting plate is slidably connected to the inner wall of the sliding groove. A lifting column is fixedly installed on the side wall of the lifting plate.

[0009] Preferably, a first spring is fixedly installed at one end of the lifting column. The first spring is located inside the slide groove, and one end of the first spring is fixedly connected to the inner wall of the slide groove. An upper hole is opened on the side wall of the lifting plate, and the positions of the upper hole and the lower hole correspond one-to-one.

[0010] Preferably, a sealing ring is fixedly installed on the side wall of the upper plate, and a condenser tube is fixedly installed on the inner wall of the upper plate.

[0011] The beneficial effects of this utility model are: 1. This equipment contacts the dynamic plate through the upper plate and sealing ring. The upper plate moves continuously, applying pressure to the dynamic plate, which compresses the telescopic rod and the second spring, ensuring that the dynamic plate is always in close contact with the sealing ring and the dynamic plate. This effectively buffers the deformation caused by thermal expansion and contraction. When the temperature rises and causes the upper and lower plates to expand, the dynamic plate slides under the action of the telescopic rod and the second spring, absorbing the excessive expansion force and preventing the seal from failing due to excessive expansion.

[0012] During the above process, as the upper plate exerts pressure, the lifting plate and lifting column rise synchronously. This causes the lifting column to compress the first spring while simultaneously rising along the slide groove, ensuring a tight fit between the lifting plate and the active plate. In this way, when faced with thermal expansion and contraction, the lifting plate always remains in contact with the upper plate, effectively preventing leakage caused by gaps. In addition, the condenser lowers the temperature of the upper plate and neutralizes the heat inside the upper and lower plates through the upper and lower holes, reducing the temperature gradient in the sealing area, effectively controlling the temperature of the sealing area, extending the service life of the sealing material, and ensuring the reliability of the seal. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the main view structure of a sealing flange for high-temperature sintering provided by an embodiment of this utility model; Figure 2 This is a front-view structural cross-sectional diagram of a sealing flange for high-temperature sintering provided by an embodiment of this utility model; Figure 3 This is a side-view structural cross-sectional diagram of a sealing flange for high-temperature sintering provided by an embodiment of this utility model; Figure 4 This is a schematic diagram of the lower plate structure of a sealing flange for high-temperature sintering provided by an embodiment of the present invention; Figure 5 This is a schematic diagram of the upper plate structure of a sealing flange for high-temperature sintering provided by an embodiment of the present invention; Figure 6 This is a schematic diagram of a high-temperature sintering sealing flange wrapping assembly provided by an embodiment of the present invention; Figure 7 This is a schematic diagram of a high-temperature sintering sealing flange buffer assembly provided by an embodiment of the present invention.

[0015] In the diagram: 1. Upper plate; 2. Positioning hole; 3. Condenser pipe; 4. Sealing ring; 5. Lower hole; 6. Positioning post; 7. Lower plate; 8. Wrapping assembly; 801. Lifting plate; 802. Upper hole; 803. Lifting post; 804. Slide groove; 805. First spring; 9. Buffer assembly; 901. Telescopic rod; 902. Second spring; 903. Vibration plate; 904. Sealing groove. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example, refer to Figures 1-7 A high-temperature sintering sealing flange includes an upper plate 1 and a lower plate 7. The upper plate 1 is located below the lower plate 7. The side wall of the upper plate 1 has positioning holes 2 and lower holes 5. Positioning posts 6 are fixedly installed on the side wall of the lower plate 7, and the positions of the positioning posts 6 and positioning holes 2 correspond one-to-one. The inner wall of the upper plate 1 is provided with condenser pipes 3 and sealing rings 4. The inner wall of the lower plate 7 is fixedly installed with a buffer assembly 9. The flange also includes: Package component 8 is located inside the lower plate 7.

[0018] Furthermore, the buffer assembly 9 includes a telescopic rod 901, which is fixedly connected to the inner wall of the lower plate 7. A dynamic plate 903 is fixedly installed at one end of the telescopic rod 901, and the dynamic plate 903 is slidably connected to the inner wall of the lower plate 7. A second spring 902 is sleeved on the side wall of the telescopic rod 901, and the two ends of the second spring 902 are fixedly connected to the inner wall of the lower plate 7 and the side wall of the dynamic plate 903, respectively. A sealing groove 904 is opened on the inner wall of the lower plate 7, and the sealing groove 904 corresponds to the position of the sealing ring 4. A sealing ring 4 is fixedly installed on the side wall of the upper plate 1, and a condenser pipe 3 is fixedly installed on the inner wall of the upper plate 1.

[0019] It should be noted that: when the installation begins, the lower plate 7 is gradually inserted into the upper plate 1, and at the same time, the positioning pin 6 installed on the lower plate 7 is also gradually inserted into the positioning hole 2 of the upper plate 1. This is to ensure that the upper plate 1 and the lower plate 7 are accurately aligned, and to prevent air holes and misalignment of bolts due to loosening.

[0020] As the lower plate 7 is continuously inserted into the upper plate 1, the sealing ring 4 installed on the upper plate 1 first contacts the dynamic plate 903. With the continued insertion of the upper plate 1, the sealing ring 4 and the upper plate 1 continuously compress the dynamic plate 903, causing the dynamic plate 903 to slide along the inner wall of the lower plate 7 while compressing the second spring 902 and the telescopic rod 901. At this time, because the second spring 902 is always in a compressed state, it provides continuous elastic force to the dynamic plate 903, ensuring that the dynamic plate 903 fits tightly against the sealing ring 4 and the upper plate 1, thus ensuring the reliability of the seal and effectively buffering deformation caused by thermal expansion and contraction. Simultaneously, when the dynamic plate 903 slides to a specific position, the sealing ring 4 precisely embeds into the sealing groove 904, always wrapping and cooperating with the dynamic plate 903, further enhancing the sealing effect. When the temperature rises, causing the upper plate 1 and lower plate 7 to expand, the dynamic plate 903 slides under the action of the telescopic rod 901 and the second spring 902, absorbing excessive expansion force and preventing seal failure due to excessive expansion.

[0021] Reference Figures 3-7 Furthermore, the wrapping component 8 includes a lifting plate 801, which is slidably connected to the inner wall of the lower plate 7. The lifting plate 801 is located below the vitality plate 903. The inner wall of the lower plate 7 is provided with a sliding groove 804. The lifting plate 801 is slidably connected to the inner wall of the sliding groove 804. A lifting column 803 is fixedly installed on the side wall of the lifting plate 801. A first spring 805 is fixedly installed at one end of the lifting column 803. The first spring 805 is located inside the sliding groove 804. One end of the first spring 805 is fixedly connected to the inner wall of the sliding groove 804. An upper hole 802 is provided on the side wall of the lifting plate 801. The positions of the upper hole 802 and the lower hole 5 correspond one-to-one.

[0022] It should be noted that: simultaneously, as the upper plate 1 and lower plate 7 further connect, the upper plate 1 compresses the lifting plate 801 in the enclosure component 8. Since the lifting plate 801 is slidably connected to the inner wall of the lower plate 7, and a lifting column 803 is fixedly installed on the side wall of the lifting plate 801, with a first spring 805 fixedly installed at one end of the lifting column 803, when the lifting plate 801 is compressed, the lifting column 803 will slide upwards along the slide groove 804, simultaneously compressing the first spring 805. As the lifting plate 801 rises, the lifting plate 80... 1. Gradually, the upper plate 903 and the lower plate 902 are tightly fitted together. The telescopic rod 901 and the second spring 902 continuously absorb the deformation force caused by thermal expansion and contraction, so that the upper plate 903 and the sealing ring 4 are in close contact, effectively preventing gas leakage and further increasing the sealing effect. During the fitting process, the upper hole 802 and the lower hole 5 are precisely aligned, allowing the gas inside the upper plate 1 and the lower plate 7 to flow smoothly, thereby balancing the pressure difference between the two plates. This pressure balancing mechanism can effectively avoid the sealing failure problem caused by uneven pressure and ensure the stability of the seal.

[0023] During the high-temperature sintering process, the temperature inside the upper plate 1 and the lower plate 7 rises rapidly. At this time, the condenser tube 3 quickly absorbs and carries away the heat inside the upper plate 1 through the circulating coolant, thereby reducing the temperature of the upper plate 1. As the temperature of the gas inside the upper plate 1 decreases, the cold gas naturally falls and enters the lower plate 7 through the lower hole 5 and the upper hole 802 inside the upper plate 1, interacting with the hot gas at this end of the lower plate 7. At the same time, the gas at the other end of the lower plate 7 rises continuously as the internal temperature of the lower plate 7 increases. At this time, the hot gas gradually rises and rises into the upper plate 1 through the upper hole 802 and the lower hole 5, interacting with the cold gas in the upper plate 1. Through gas circulation and interaction, the heat inside the upper plate 1 and the lower plate 7 is neutralized, reducing the temperature gradient in the sealing area. This not only effectively controls the temperature of the sealing area but also prevents material performance degradation or sealing failure due to excessive temperature, and extends the service life of the sealing material.

[0024] When the high-temperature sintering process ends and the temperature gradually decreases, the upper plate 1 and the lower plate 7 begin to contract. At this time, the first spring 805, which has stored elastic potential energy due to previous compression, will release energy and push the lifting column 803 to slide along the slide groove 804, thereby driving the lifting plate 801 to move. During the movement, the lifting plate 801 still maintains a certain degree of contact with the dynamic plate 903, continuing to maintain the sealing state. At the same time, the telescopic rod 901 and the second spring 902 will also play a buffering role during the contraction process, avoiding the upper plate 1 and the lower plate 7 from generating large stress due to excessive contraction, and ensuring the integrity of the entire sealing structure.

[0025] It should be noted that the specific model and specifications need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sealing flange for high-temperature sintering, comprising an upper plate (1) and a lower plate (7), wherein the upper plate (1) is located below the lower plate (7), the side wall of the upper plate (1) is provided with a positioning hole (2) and a lower hole (5), and a positioning post (6) is fixedly installed on the side wall of the lower plate (7), wherein the positioning post (6) corresponds one-to-one with the positioning hole (2), and the inner wall of the upper plate (1) is provided with a condenser tube (3) and a sealing ring (4), characterized in that, The inner wall of the lower plate (7) is fixedly installed with a buffer assembly (9), which also includes: Package assembly (8) is located inside the lower plate (7).

2. The sealing flange for high-temperature sintering according to claim 1, characterized in that, The buffer assembly (9) includes a telescopic rod (901), which is fixedly connected to the inner wall of the lower plate (7). A dynamic plate (903) is fixedly installed at one end of the telescopic rod (901), and the dynamic plate (903) is slidably connected to the inner wall of the lower plate (7). A second spring (902) is sleeved on the side wall of the telescopic rod (901).

3. A sealing flange for high-temperature sintering according to claim 2, characterized in that, The two ends of the second spring (902) are fixedly connected to the inner wall of the lower plate (7) and the side wall of the dynamic plate (903), respectively. The inner wall of the lower plate (7) is provided with a sealing groove (904), and the sealing groove (904) corresponds to the position of the sealing ring (4).

4. A sealing flange for high-temperature sintering according to claim 1, characterized in that, The package assembly (8) includes a lifting plate (801), which is slidably connected to the inner wall of the lower plate (7). The lifting plate (801) is located below the vitality plate (903). The inner wall of the lower plate (7) is provided with a sliding groove (804), and the lifting plate (801) is slidably connected to the inner wall of the sliding groove (804). A lifting column (803) is fixedly installed on the side wall of the lifting plate (801).

5. A sealing flange for high-temperature sintering according to claim 4, characterized in that, A first spring (805) is fixedly installed at one end of the lifting column (803). The first spring (805) is located inside the slide groove (804). One end of the first spring (805) is fixedly connected to the inner wall of the slide groove (804). An upper hole (802) is opened on the side wall of the lifting plate (801). The positions of the upper hole (802) and the lower hole (5) correspond one-to-one.

6. A sealing flange for high-temperature sintering according to claim 1, characterized in that, A sealing ring (4) is fixedly installed on the side wall of the upper plate (1), and a condenser pipe (3) is fixedly installed on the inner wall of the upper plate (1).

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