Silicon carbide valve plate sintering furnace

Abstract

The utility model relates to the technical field of sintering furnaces, in particular to a silicon carbide valve plate sintering furnace which comprises a sintering furnace body, an inner container is arranged in the sintering furnace body, a plurality of heating rods are arranged on the three side faces of the inner container, a positioning clamping groove is formed in the bottom side in the inner container, a positioning clamping block is connected to the inner wall of the positioning clamping groove in a clamped mode, and the inner wall of the positioning clamping block is provided with a clamping groove. The top side of the positioning clamping block is fixedly connected with a storage plate, and the middle of the top side of the storage plate is fixedly connected with a mounting frame. The silicon carbide valve block placing device has the advantages that through the matched arrangement of the heating rods, the positioning clamping grooves, the positioning clamping blocks, the object placing plates, the mounting frames, the fixing insertion holes, the positioning grooves, the positioning plates, the isolation plates, the isolation plate fixing structures, the air holes and the limiting structures, a plurality of silicon carbide valve blocks can be vertically and independently placed, and the situation that the silicon carbide valve blocks are stacked is avoided; therefore, the silicon carbide valve plates are uniformly heated, and the qualified rate of sintered finished products is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering furnaces, in particular to a sintering furnace for silicon carbide valve sheets. Background Art

[0002] The valve plate is a device used to control the flow of fluid. The working principle is to adjust the opening and closing degree of the fluid channel by the opening and closing state of the valve plate. Silicon carbide is a compound material with the characteristics of high strength, high hardness, high wear resistance, high corrosion resistance, high temperature performance and excellent thermal conductivity. In addition, silicon carbide has good chemical stability and will not melt or deform at extreme temperatures. Therefore, it can still maintain its strength and hardness under high temperature and high pressure environments. Therefore, most valve plates are made of silicon carbide. Silicon carbide valve plates are widely used in chemical, petroleum, electric power, metallurgy, pharmaceutical and other industries, especially in wear-resistant, high temperature, high pressure, strong corrosive media and clean media. Sintering furnace refers to a special equipment that makes the powder compact obtain the required physical, mechanical properties and microstructure through sintering. Sintering furnace is needed in the process of processing silicon carbide valve plates.

[0003] In the prior art, in the process of producing silicon carbide valve plates through a sintering furnace, the silicon carbide valve plates are generally placed inside the sintering furnace by stacking them. This processing method can easily lead to the heating gas not circulating inside the sintering furnace, uneven heating between the valve plates, and uneven heating inside and outside of a single valve plate, which in turn leads to a low qualified rate of sintered products. Therefore, a silicon carbide valve plate sintering furnace is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the present invention is to provide a silicon carbide valve plate sintering furnace to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a silicon carbide valve sheet sintering furnace, including a sintering furnace body, an inner shell is arranged inside the sintering furnace body, and a plurality of heating rods are arranged on the three sides of the inner shell, a positioning slot is provided on the bottom side of the inner shell, a positioning block is clamped on the inner wall of the positioning slot, a storage plate is fixedly connected to the top side of the positioning block, a mounting frame is fixedly connected to the middle part of the top side of the storage plate, a plurality of fixing jacks are provided on the top side of the mounting frame, a plurality of positioning slots are provided on the bottom side of the inner shell, a plurality of inner walls of the positioning slots are clamped with positioning plates, a plurality of isolation plates are fixedly connected to the top sides of the positioning plates, an isolation plate fixing structure is arranged on a plurality of isolation plates, a plurality of air vents are provided on one side of the isolation plates, a silicon carbide valve sheet is arranged between the plurality of isolation plates, and two limiting structures for limiting the silicon carbide valve sheet are arranged on the storage plate.

[0007] Preferably, any of the above schemes comprises a mounting hole, a fixing spring and a fixing rod, a mounting hole is opened in the middle of the top side of the isolation plate, a fixing spring is fixedly connected to the inner wall of the mounting hole, and a fixing rod matching the size of the fixing hole is fixedly connected to the top of the fixing spring.

[0008] Preferably, any of the above schemes comprises a slider, a locking threaded rod, a locking nut and a limiting plate, a sliding groove is provided on the top side of the storage plate, a slider is slidably connected to the inner wall of the sliding groove, a locking threaded rod is fixedly connected to one side of the slider, a locking nut is threadedly connected to the outer surface of the locking threaded rod, and the top side of the locking threaded rod is fixedly connected to the limiting plate.

[0009] Preferably, any of the above schemes is that a limiting groove connected to the sliding groove is opened on one side of the storage plate, the locking threaded rod passes through the inside of the limiting groove, and the locking threaded rod is slidably connected to the limiting groove.

[0010] Preferably, any of the above schemes has the shape of the positioning block and the positioning slot being an isosceles trapezoid, and the size of the positioning block is matched with the size of the positioning slot.

[0011] Preferably, in any of the above schemes, the length of the fixing spring is smaller than the depth of the mounting hole, the fixing rod is slidably connected to the mounting hole, and the diameter of the fixing rod is matched to the diameter of the mounting hole.

[0012] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0013] Through the coordinated arrangement of heating rods, positioning slots, positioning blocks, storage plates, mounting frames, fixed jacks, positioning slots, positioning plates, isolation plates, isolation plate fixing structures, air holes and limiting structures, multiple silicon carbide valve plates can be placed vertically and separately, avoiding the situation where silicon carbide valve plates are stacked and placed, so that multiple silicon carbide valve plates are heated more evenly, which greatly improves the qualified rate of sintered products. In addition, the silicon carbide valve plate sintering furnace can select a suitable number of isolation plates according to the diameter and thickness of the silicon carbide valve plates and facilitate the connection of the isolation plates with the mounting frame, and can adjust the distance between the isolation plates and the distance between the limiting plates and the mounting frame, so that the silicon carbide valve plate sintering furnace can sinter silicon carbide valve plates of larger sizes, thereby expanding the scope of application of the silicon carbide valve plate sintering furnace and improving the practicality and structural flexibility of the silicon carbide valve plate sintering furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model without the material plate installed;

[0017] Figure 4 This is a schematic diagram of the structure of the storage plate and its connecting components of the utility model;

[0018] Figure 5 For this utility model Figure 4 Schematic diagram of the structure without the isolation plate and silicon carbide valve plate;

[0019] Figure 6 This is a schematic diagram of the structure of the isolation plate and its connecting components of the utility model;

[0020] Figure 7 It is a schematic diagram of the cross-sectional structure of the isolation plate and its connecting components of the utility model;

[0021] Figure 8 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0022] In the figure: 1-sintering furnace body, 2-inner tank, 3-heating rod, 4-positioning slot, 5-positioning block, 6-storage plate, 7-installation frame, 8-fixing socket, 9-positioning slot, 10-positioning plate, 11-isolation plate, 12-isolation plate fixing structure, 1201-installation hole, 1202-fixing spring, 1203-fixing plug rod, 13-ventilation hole, 14-silicon carbide valve plate, 15-limiting structure, 1501-slider, 1502-locking threaded rod, 1503-locking nut, 1504-limiting plate, 16-slide groove, 17-limiting groove. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0024] like Figures 1 to 8As shown, a silicon carbide valve sheet sintering furnace comprises a sintering furnace body 1. The sintering furnace body 1 is an existing technical structure, so its external structure and connecting components are not specifically described. An inner tank 2 is arranged inside the sintering furnace body 1. A plurality of heating rods 3 are arranged on three sides of the inner tank 2. The inner tank 2 can be evenly heated by the heating rods 3 on the three sides of the inner tank 2. A positioning slot 4 is arranged on the bottom side of the inner tank 2. A positioning block 5 is clamped on the inner wall of the positioning slot 4. A storage plate 6 is fixedly connected to the top side of the positioning block 5. A handle is provided on the storage board 6 for easy pushing and pulling of the storage board 6. A mounting frame 7 is fixedly connected to the middle of the top side of the storage board 6. A plurality of fixing jacks 8 are provided on the top side of the mounting frame 7. A plurality of positioning grooves 9 are provided on the bottom side of the interior of the mounting frame 7. A plurality of positioning grooves 9 are clamped with positioning plates 10 on the inner walls. A plurality of positioning plates 10 are fixedly connected to the top sides of the plurality of positioning plates 10. A plurality of isolation plates 11 are provided with isolation plate fixing structures 12. A plurality of isolation plates 11 are provided with air holes 13 on one side. The air holes 13 can ensure that heat can be released at a certain temperature. The internal flow of the area formed by the several isolation plates 11 makes the area formed between the several isolation plates 11 more evenly heated. Silicon carbide valve plates 14 are arranged between the several isolation plates 11. Two limiting structures 15 for limiting the silicon carbide valve plates 14 are arranged on the storage plate 6. When the sintering furnace is used to sinter the silicon carbide valve plates 14, firstly, a suitable number of isolation plates 11 are selected according to the thickness of the silicon carbide valve plates 14, and the positioning plates 10 connected to the isolation plates 11 are inserted into the positioning grooves 9 at suitable positions, and then the isolation plates 11 are used to fix the silicon carbide valve plates 14. The fixing structure 12 fixes the isolation plate 11, and a suitable number of isolation plates 11 are selected and connected to the mounting frame 7. At this time, the spacing between the isolation plates 11 is specific, and then the limiting structure 15 is adjusted to a suitable position according to the diameter of the silicon carbide valve plate 14. The silicon carbide valve plate 14 is limited by the isolation plate 11 and the limiting structure 15 to avoid position displacement of the silicon carbide valve plate 14. The silicon carbide valve plate 14 is vertically placed between two adjacent isolation plates 11, and then the sintering furnace can be used to perform sintering operations on the silicon carbide valve plate 14.

[0025] As an optional technical solution of the present invention, the isolation plate fixing structure 12 includes a mounting hole 1201, a fixing spring 1202 and a fixing plug rod 1203. The middle part of the top side of the isolation plate 11 is provided with a mounting hole 1201, the inner wall of the mounting hole 1201 is fixedly connected with a fixing spring 1202, the top of the fixing spring 1202 is fixedly connected with a fixing plug rod 1203 that matches the size of the fixing hole 8, and the end shape of the fixing plug rod 1203 is round, which can facilitate the fixing plug rod 1203 to be inserted into the fixing plug Inside the hole 8, when connecting the isolation plate 11, first press the fixing rod 1203 downward to make it enter the inside of the mounting hole 1201. At this time, the fixing spring 1202 is in a compressed state. Then the positioning plate 10 is inserted into the inside of the positioning groove 9 at the appropriate position. At this time, the fixing rod 1203 corresponds to the position of the fixing socket 8 at the appropriate position. At this time, under the reaction force of the fixing spring 1202, the fixing rod 1203 is inserted into the inside of the fixing socket 8, thereby connecting the isolation plate 11 and the mounting frame 7.

[0026] As an optional technical solution of the present utility model, the limiting structure 15 includes a slider 1501, a locking threaded rod 1502, a locking nut 1503 and a limiting plate 1504. A slide groove 16 is opened on the top side of the storage plate 6. The inner wall of the slide groove 16 is slidably connected with the slider 1501. One side of the slider 1501 is fixedly connected with the locking threaded rod 1502. The outer surface of the locking threaded rod 1502 is threadedly connected with the locking nut 1503. The top side of the locking threaded rod 1502 is fixedly connected with the limiting plate 1504. When the silicon carbide valve disc 14 is limited, the limiting plate 1504 is moved. At this time, the slider 1501 drives the locking threaded rod 1502 and the locking nut 1503 to move. The limiting plate 1504 is adjusted to a suitable position according to the diameter of the silicon carbide valve disc 14, and then the locking nut 1503 is rotated to make it fit tightly with the storage plate 6, so as to fix the limiting plate 1504 in a suitable position.

[0027] As an optional technical solution of the utility model, a limiting groove 17 connected to the slide groove 16 is opened on one side of the storage plate 6, and the locking threaded rod 1502 passes through the inside of the limiting groove 17. The locking threaded rod 1502 is slidingly connected to the limiting groove 17, so that the locking threaded rod 1502 can move smoothly.

[0028] As an optional technical solution of the present invention, the shapes of the positioning block 5 and the positioning slot 4 are both isosceles trapezoids, and the sizes of the positioning block 5 and the positioning slot 4 are adapted to each other. Through the positioning block 5 and the positioning slot 4, the storage plate 6 can be firmly connected to the inside of the inner liner 2.

[0029] As an optional technical solution of the present invention, the length of the fixing spring 1202 is smaller than the depth of the mounting hole 1201, the fixing rod 1203 is slidingly connected to the mounting hole 1201, and the diameter of the fixing rod 1203 is adapted to the diameter of the mounting hole 1201, so that the fixing rod 1203 can be smoothly moved and inserted into the interior of the fixing hole 8.

[0030] The working principle of silicon carbide valve plate sintering furnace is as follows:

[0031] 1) Selecting a suitable number of isolation plates 11 according to the thickness of the silicon carbide valve plate 14;

[0032] 2) Press the fixing rod 1203 downward to make it enter the interior of the mounting hole 1201. At this time, the fixing spring 1202 is in a compressed state;

[0033] 3) The positioning plate 10 is inserted into the positioning groove 9 at a suitable position, and the fixed rod 1203 corresponds to the position of the fixed socket 8 at a suitable position. At this time, the fixed rod 1203 is inserted into the fixed socket 8 under the reaction force of the fixed spring 1202, thereby connecting an isolation plate 11 and the mounting frame 7;

[0034] 4) Repeat steps 2 and 3 to connect the remaining isolation plates 11 and form a suitable spacing between the isolation plates 11;

[0035] 5) Move the two limit plates 1504 respectively, and the slider 1501 drives the locking threaded rod 1502 and the locking nut 1503 to move, and adjust the limit plates 1504 to a suitable position according to the diameter of the silicon carbide valve plate 14;

[0036] 6) Rotate the locking nuts 1503 to make them fit tightly with the storage plate 6, so as to fix the limiting plate 1504 in a suitable position;

[0037] 7) Place the silicon carbide valve sheet 14 vertically between two adjacent isolation plates 11, connect the positioning block 5 with the positioning slot 4, place the placement plate 6 and the silicon carbide valve sheet 14 on the placement plate 6 inside the inner tank 2, and start the heating rod 13 to perform the sintering operation on the silicon carbide valve sheet 14.

[0038] In summary, the silicon carbide valve plate sintering furnace, through the coordinated arrangement of the heating rod 3, the positioning slot 4, the positioning block 5, the storage plate 6, the mounting frame 7, the fixing jack 8, the positioning slot 9, the positioning plate 10, the isolation plate 11, the isolation plate fixing structure 12, the air vent 13 and the limiting structure 15, can make multiple silicon carbide valve plates 14 stand upright and separately placed, avoiding the situation where the silicon carbide valve plates 14 are stacked and placed, so that the multiple silicon carbide valve plates 14 are heated more evenly, greatly improving the qualified rate of the sintered products. The silicon carbide valve plate sintering furnace can select a suitable number of isolation plates 11 according to the diameter and thickness of the silicon carbide valve plate 14 and facilitate the connection of the isolation plates 11 with the mounting frame 7, and can adjust the distance between the isolation plates 11 and the distance between the limit plate 1404 and the mounting frame 7, so that the silicon carbide valve plate sintering furnace can perform sintering operations on silicon carbide valve plates 14 of more sizes, thereby expanding the application scope of the silicon carbide valve plate sintering furnace and improving the practicality and structural flexibility of the silicon carbide valve plate sintering furnace.

Claims

1. Silicon carbide valve plate sintering furnace, characterized by: The invention comprises a sintering furnace body (1), wherein an inner liner (2) is arranged inside the sintering furnace body (1), a plurality of heating rods (3) are arranged on three sides of the inner liner (2), a positioning slot (4) is provided on the bottom side of the inner liner (2), a positioning block (5) is clamped on the inner wall of the positioning slot (4), a storage plate (6) is fixedly connected to the top side of the positioning block (5), a mounting frame (7) is fixedly connected to the middle part of the top side of the storage plate (6), a plurality of fixing holes (8) are provided on the top side of the mounting frame (7), and a plurality of fixing holes (8) are provided on the bottom side of the mounting frame (7). A plurality of positioning grooves (9) are provided on the side, the inner walls of the plurality of positioning grooves (9) are clamped with positioning plates (10), the top sides of the plurality of positioning plates (10) are fixedly connected with isolation plates (11), the isolation plates (11) are provided with isolation plate fixing structures (12), a plurality of isolation plates (11) are provided with air holes (13) on one side, silicon carbide valve plates (14) are provided between the plurality of isolation plates (11), and the storage plate (6) is provided with two limiting structures (15) for limiting the silicon carbide valve plates (14).

2. The silicon carbide valve sheet sintering furnace according to claim 1, characterized in that: The isolation plate fixing structure (12) comprises a mounting hole (1201), a fixing spring (1202) and a fixing plug rod (1203); a mounting hole (1201) is provided in the middle of the top side of the isolation plate (11); a fixing spring (1202) is fixedly connected to the inner wall of the mounting hole (1201); and a fixing plug rod (1203) whose size matches that of the fixing hole (8) is fixedly connected to the top end of the fixing spring (1202).

3. The silicon carbide valve sheet sintering furnace according to claim 2, characterized in that: The limiting structure (15) comprises a slider (1501), a locking threaded rod (1502), a locking nut (1503) and a limiting plate (1504); a sliding groove (16) is provided on the top side of the storage plate (6); the inner wall of the sliding groove (16) is slidably connected to the slider (1501); one side of the slider (1501) is fixedly connected to the locking threaded rod (1502); the outer surface of the locking threaded rod (1502) is threadedly connected to the locking nut (1503); and the top side of the locking threaded rod (1502) is fixedly connected to the limiting plate (1504).

4. The silicon carbide valve sheet sintering furnace according to claim 3, characterized in that: A limiting groove (17) connected to the slide groove (16) is provided on one side of the storage plate (6); the locking threaded rod (1502) passes through the inside of the limiting groove (17); and the locking threaded rod (1502) is slidably connected to the limiting groove (17).

5. The silicon carbide valve sheet sintering furnace according to claim 4, characterized in that: The positioning block (5) and the positioning slot (4) are both isosceles trapezoidal in shape, and the positioning block (5) and the positioning slot (4) are adapted in size.

6. The silicon carbide valve sheet sintering furnace according to claim 5, characterized in that: The length of the fixing spring (1202) is smaller than the depth of the mounting hole (1201), the fixing rod (1203) is slidably connected to the mounting hole (1201), and the diameter of the fixing rod (1203) is matched to the diameter of the mounting hole (1201).

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