A ceramic tube column sintering stage assembly

Abstract

This utility model discloses a ceramic tube column sintering support assembly, belonging to the field of ceramic sintering technology. The assembly includes a sintering table body, a V-shaped support, a V-shaped groove, and a first vent. Through the first vent, the hot air flow in the lower part of the furnace can penetrate upward through the sintering table body and reach the bottom of the ceramic tube, thereby reducing the temperature difference of the ceramic tubes on the multi-layer sintering table body and making the heating more uniform. By inserting a support plate into the insertion groove, multiple sintering table bodies can be stacked and spliced. The connection slot and the through slot can assist in the upward transfer of heat. The second vent allows the heat flowing inside the connection slot and the through slot to diffuse to the V-shaped support of the same layer, thereby making the heat on each layer of the sintering table body more uniform.

Description

Technical Field

[0001] This utility model belongs to the field of ceramic sintering technology, specifically, it relates to a ceramic tube column sintering stage assembly. Background Technology

[0002] Ceramic products are widely used in various fields due to the inherent flexural strength, high-voltage electrical insulation, thermal shock resistance, low loss, and good chemical stability of the material itself. Among them, ceramic rods are widely used in precision electronic instruments. In the manufacturing process of ceramic rods, tubes, or columns, the clay lacks strength after drying and cannot form a product. Therefore, it needs to be sintered at high temperatures to solidify and shape it. Maintaining the straightness of ceramic rods, tubes, or columns is crucial during production; if bending or deformation occurs during manufacturing, subsequent processing becomes impossible, leading to product scrap.

[0003] Currently, the sintering production of ceramic rods or tubes often employs hanging firing, also known as vertical firing. There are two methods of hanging firing: one is to open a hanging hole, which is directly opened at one end of the tubular or rod-shaped ceramic green body, and the hanging hole is inserted into a high-temperature resistant material during sintering; the other is to use a hanging head method, which appropriately increases the outer diameter of one end of the tubular or rod-shaped ceramic green body, so that the maximum outer diameter of the end is greater than the outer diameter of the tubular or rod-shaped ceramic green body, making it easier to clamp the ceramic rod or tube green body onto a grooved sintering table to achieve hanging firing.

[0004] Chinese utility model patent CN209857645U discloses a sintering table for high-temperature sintering ceramics. By setting mutually parallel V-shaped, U-shaped or semi-circular grooves on the sintering table, tubular or rod-shaped ceramic green bodies are placed in the grooves for shaping, which can avoid deformation of the finished ceramic rods or tubes. Supports and locking parts corresponding to the position and size of the support are respectively set on the front and back of the sintering plate for stacking multiple sintering tables.

[0005] Although this sintering platform can achieve batch sintering of ceramic tubes, the multi-layered stacking results in significant differences in the uniformity of heating between the upper and lower layers and the ceramic tubes they support. Due to the natural vertical temperature gradient within the furnace (typically, the lower part of the furnace is slightly warmer due to direct radiation from heating elements or the sinking of hot air), coupled with the partial heat shielding of the lower layers by the upper layers, the lower layers receive more heat and reach a higher actual temperature, while the upper layers receive relatively less heat and have a lower temperature. This temperature difference... This is directly reflected in the sintering process of ceramic tubes: the lower layer ceramic tubes, being in a higher temperature environment, have a faster sintering reaction rate and are prone to over-firing (manifested as excessive grain growth, excessive density, and even tube deformation and cracking); the upper layer ceramic tubes, due to the lower temperature, have an insufficient sintering reaction and insufficient firing time (manifested as insufficient density, low strength, and unsintered surface defects). Ultimately, this leads to significant quality differences among ceramic tubes of the same batch but different stacked layers, a lower yield rate, and difficulty in meeting the consistency requirements of mass production. Utility Model Content

[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0007] To address the significant differences in heating uniformity between upper and lower sintering platforms and the supporting ceramic tubes in the multi-layered sintering system, as mentioned in the background, and the natural vertical temperature gradient within the furnace due to the heat shielding effect of the upper sintering platform on the lower platform, the lower sintering platform receives more heat and reaches a higher actual temperature, while the upper sintering platform receives relatively less heat and reaches a lower temperature. This temperature difference directly affects the sintering process of the ceramic tubes: the lower ceramic tubes, being in a higher temperature environment, experience a faster sintering reaction rate and are prone to over-firing; while the upper ceramic tubes, due to their lower temperature, experience insufficient sintering reaction and insufficient firing time. Ultimately, this leads to significant quality differences among ceramic tubes from different stacked layers within the same batch, resulting in a lower yield and difficulty in meeting the consistency requirements of mass production. Therefore, this invention adopts the following technical solution.

[0008] A ceramic tube column sintering support assembly includes a sintering platform body, multiple sintering platform bodies stacked on top of each other, and multiple V-shaped supports embedded in each sintering platform body. The sintering platform body is provided with a V-shaped groove at the end of each V-shaped support. Multiple first vent holes are provided on both sides of the interior of each V-shaped support. Each first vent hole communicates with the bottom of the sintering platform body. The first vent holes on the multiple V-shaped supports on the multiple stacked sintering platform bodies are positioned opposite each other. Hot air flow from the lower part of the furnace can pass upward through the first vent holes, penetrate the sintering platform body, and reach the bottom of the ceramic tube.

[0009] Preferably, the upper end of the sintering table body is provided with an insertion slot located between the two V-shaped support platforms, and the bottom of the sintering table body is detachably connected with multiple insertion support plates. When multiple sintering table bodies are stacked, the insertion support plates are inserted into the insertion slots, and the insertion support plates are inserted into the insertion slots to stack and splice the multiple sintering table bodies together.

[0010] Preferably, each plug slot has a through slot at its inner bottom, each plug support plate has a connecting slot that communicates with the through slot, and each plug support plate has multiple second vent holes on its outer wall sides near the top that communicate with the connecting slot holes. The heat flowing inside the connecting slot and the through slot is diffused to the V-shaped support of the same layer through the second vent holes.

[0011] Preferably, reinforcing plates are embedded in both sides of the bottom of the sintering table body, and multiple V-shaped supports on both sides are fixedly connected to the upper end of the reinforcing plates, with the first vent hole on each V-shaped support penetrating the reinforcing plate.

[0012] Preferably, a fixing plate is fixedly connected to multiple plug-in support plates at the upper center position. The fixing plate, together with the plug-in support plates, fixes the two side reinforcing plates to the bottom of the sintering table body. High-temperature ceramic bolts pass through both ends of the fixing plate, and the high-temperature ceramic bolts are threadedly connected to the bottom of the sintering table body.

[0013] Preferably, each sintering table body has a fixed enclosure plate fitted on its outer wall, a collection groove is provided at the upper end of the fixed enclosure plate, support plates are fixedly connected to both ends of the fixed plate, the bottom of the fixed enclosure plate is attached to the upper end of the support plate, and an inclined surface is provided at the outer edge of the sintering table body.

[0014] Preferably, a reinforcing rib is fixedly connected at the upper center of the sintering table body, and the axis of the reinforcing rib is perpendicular to the axis of each V-shaped support.

[0015] Preferably, each reinforcing rib is provided with a triangular groove at its position inside each V-shaped support.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. With the first vent, the hot air flow in the lower part of the furnace can penetrate upward through the sintering platform body and reach the bottom of the ceramic tube, thereby reducing the temperature difference of the ceramic tubes on the multi-layer sintering platform body and making the heating more uniform. By inserting the support plate into the insertion slot, multiple sintering platform bodies can be stacked and spliced. The connection slot and the through slot can help the heat to be transferred upward. With the second vent, the heat flowing inside the connection slot and the through slot can diffuse to the V-shaped support of the same layer, thereby making the heat on each layer of the sintering platform body more uniform.

[0017] 2. The fixed plate and high-temperature ceramic bolts make it easy to disassemble and insert the support plate. After disassembly, the reinforcing plates on both sides can be removed. V-shaped support platforms of different sizes can be replaced according to the size of the sintered ceramic tube, making the sintering of the sintered ceramic tube more convenient.

[0018] 3. The inclined surface can guide the dust on the sintering table body into the inside of the collection tank. Under the action of gravity, the dust slides into the inside of the collection tank along the inclined surface, avoiding the accumulation around the V-shaped support and contaminating the ceramic tube.

[0019] 4. The reinforcing ribs can increase the support strength of the sintering table body and prevent it from breaking in a high-temperature environment. The triangular grooves can allow hot air to circulate between the multiple V-shaped supports on both sides of the reinforcing ribs, making the sintering temperature more uniform. The reinforcing plates can make the sintering table body stronger, increase its service life and prevent deformation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a ceramic tube column sintering drag table assembly according to the present invention; Figure 2 This is a schematic diagram of the heat dissipation component structure in this utility model; Figure 3 This is a schematic diagram of the splicing component structure in this utility model; Figure 4 This is a schematic diagram of the reinforcement component structure in this utility model; Figure 5 This is a schematic diagram of the collecting component structure in this utility model.

[0021] The correspondence between the labels and component names in the attached figures is as follows: 100. Sintering platform body; 101. V-groove; 102. Insertion groove; 103. Through groove; 104. Reinforcing rib; 105. Triangular groove; 200. V-shaped support; 201. First vent; 300. Insertion support plate; 301. Connecting slot; 302. Second vent hole; 303. Fixing plate; 304. High-temperature ceramic bolt; 305. Reinforcing plate; 306. Support plate; 400. Fixed enclosure; 401. Collection trough. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] 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. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0025] like Figure 1 The diagram shown is a schematic diagram of a ceramic tube sintering support assembly according to a preferred embodiment of the present invention. The ceramic tube sintering support assembly of this embodiment includes a sintering platform body 100, and multiple V-shaped supports 200 are embedded in each sintering platform body 100. The multiple sintering platform bodies 100 are stacked on top of each other. In this embodiment, the V-shaped supports 200 can limit the ceramic tube to prevent it from rolling above the sintering platform body 100, and can also guide the hot airflow to pass parallel across the surface of the ceramic tube, preventing the airflow from accumulating below the tube. By stacking multiple sintering platform bodies 100, the purpose of batch sintering ceramic tubes can be achieved.

[0026] like Figure 2As shown, this is a schematic diagram of the heat spreader assembly structure in this embodiment. Each V-shaped support 200 has multiple first vent holes 201 on both sides inside. Each first vent hole 201 is connected to the bottom of the sintering platform body 100. The first vent holes 201 on the multiple stacked sintering platform bodies 100 are positioned opposite each other. The sintering platform body 100 has a V-groove 101 at the end of each V-shaped support 200. In this embodiment, through the setting of the first vent holes 201, the hot air flow in the lower part of the furnace can penetrate upward through the sintering platform body 100 and reach the bottom of the ceramic tube, thereby reducing the temperature difference of the ceramic tubes on the multi-layer sintering platform body 100 and making the heating more uniform.

[0027] like Figure 2 As shown, a reinforcing rib 104 is fixedly connected to the upper center of the sintering table body 100. The axis of the reinforcing rib 104 is perpendicular to the axis of each V-shaped support 200. Each reinforcing rib 104 is provided with a triangular groove 105 inside each V-shaped support 200. In this embodiment, the reinforcing rib 104 can increase the support strength of the sintering table body 100 and prevent it from breaking under high temperature. The triangular groove 105 can allow hot air to circulate between the multiple V-shaped supports 200 on both sides of the reinforcing rib 104, making the sintering temperature more uniform.

[0028] like Figure 2 as well as Figure 3 As shown, this is a schematic diagram of the splicing component structure in this embodiment. The upper end of the sintering table body 100, located between the two V-shaped support platforms 200, is provided with an insertion slot 102. The bottom of the sintering table body 100 is detachably connected to multiple insertion support plates 300. When multiple sintering table bodies 100 are stacked, the insertion support plates 300 are inserted into the interior of the insertion slot 102. In this embodiment, by inserting the insertion support plates 300 into the interior of the insertion slot 102, multiple sintering table bodies 100 can be stacked and spliced ​​together.

[0029] like Figure 2 as well as Figure 3 As shown, each insertion slot 102 has a through slot 103 at its inner bottom, and each insertion support plate 300 has a connecting slot 301 that communicates with the through slot 103. Each insertion support plate 300 has multiple second vent holes 302 that communicate with the connecting slot holes 301 on both sides of its outer wall near the top. In this embodiment, the connecting slot holes 301 and the through slot 103 help to transfer heat upwards. The second vent holes 302 allow the heat flowing inside the connecting slot holes 301 and the through slot 103 to diffuse to the V-shaped support 200 of the same layer, thereby making the heat on each sintering platform body 100 more uniform.

[0030] like Figure 4As shown, this is a schematic diagram of the reinforcement component structure in this embodiment. Reinforcing plates 305 are embedded in both sides of the bottom of the sintering table body 100. Multiple V-shaped supports 200 on both sides are fixedly connected to the upper end of the reinforcing plates 305, and the first vent hole 201 on each V-shaped support 200 penetrates the reinforcing plate 305. In this embodiment, the reinforcing plate 305 can make the sintering table body 100 stronger, increase its service life and prevent deformation.

[0031] like Figure 3 as well as Figure 4 As shown, this is a schematic diagram of the assembly structure in this embodiment. Multiple plug-in support plates 300 are fixedly connected to a fixing plate 303 at the upper center. The fixing plate 303, together with the plug-in support plates 300, fixes the two side reinforcing plates 305 to the bottom of the sintering table body 100. The two ends of the fixing plate 303 pass through high-temperature ceramic bolts 304, which are threadedly connected to the bottom of the sintering table body 100. In this embodiment, the plug-in support plates 300 can be easily disassembled through the fixing plate 303 and the high-temperature ceramic bolts 304. After disassembly, the two side reinforcing plates 305 can be removed, and different sizes of V-shaped support platforms 200 can be replaced according to the size of the sintered ceramic tube, making the sintering of the sintered ceramic tube more convenient.

[0032] like Figure 4 as well as Figure 5 As shown, this is a schematic diagram of the collection component structure in this embodiment. Each sintering table body 100 is fitted with a fixed enclosure plate 400 on its outer wall. A collection groove 401 is provided at the upper end of the fixed enclosure plate 400. Support plates 306 are fixedly connected to both ends of the fixed plate 303. The bottom of the fixed enclosure plate 400 is attached to the upper end of the support plate 306. An inclined surface is provided at the outer edge of the sintering table body 100. In this embodiment, the inclined surface can guide the dust on the sintering table body 100 into the interior of the collection groove 401. The dust slides into the interior of the collection groove 401 along the inclined surface under the action of gravity, avoiding accumulation around the V-shaped support 200 and contaminating the ceramic tube.

[0033] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A ceramic tube column sintering stage assembly, comprising a sintering stage body (100), characterized in that, Multiple sintering platform bodies (100) are stacked on top of each other. Each sintering platform body (100) has multiple V-shaped support platforms (200) embedded in it. The sintering platform body (100) has a V-shaped groove (101) at the end of each V-shaped support platform (200). Multiple first ventilation holes (201) are provided on both sides of the interior of each V-shaped support platform (200). Each first ventilation hole (201) is connected to the bottom of the sintering platform body (100). The first ventilation holes (201) on the multiple V-shaped support platforms (200) on the multiple stacked sintering platform bodies (100) are positioned opposite each other. The hot air flow in the lower part of the furnace can pass through the first ventilation hole (201) and penetrate the sintering platform body (100) to the bottom of the ceramic tube.

2. The ceramic tube column sintering stage assembly according to claim 1, characterized in that, The upper end of the sintering table body (100) located between two V-shaped support platforms (200) is provided with a plug-in slot (102). The bottom of the sintering table body (100) is detachably connected with multiple plug-in support plates (300). When multiple sintering table bodies (100) are stacked, the plug-in support plates (300) are inserted into the interior of the plug-in slot (102). The plug-in support plates (300) are inserted into the interior of the plug-in slot (102) to stack and splice multiple sintering table bodies (100).

3. The ceramic tube column sintering stage assembly according to claim 2, characterized in that, Each plug slot (102) has a through slot (103) at the bottom of its inner side. Each plug support plate (300) has a connecting slot (301) that communicates with the through slot (103). Each plug support plate (300) has multiple second vent holes (302) on its outer wall near the top that communicate with the connecting slot (301). The heat flowing inside the connecting slot (301) and the through slot (103) diffuses to a portion of the V-shaped support (200) on the same layer through the second vent holes (302).

4. The ceramic tube column sintering stage assembly according to claim 1, characterized in that, The bottom sides of the sintering table body (100) are inlaid with reinforcing plates (305), and multiple V-shaped supports (200) on both sides are fixedly connected to the upper end of the reinforcing plates (305), and the first vent hole (201) on each V-shaped support (200) penetrates the reinforcing plate (305).

5. The ceramic tube column sintering stage assembly according to claim 3, characterized in that, Multiple plug-in support plates (300) are fixedly connected to a fixing plate (303) at the upper center. The fixing plate (303) works with the plug-in support plates (300) to fix the two side reinforcing plates (305) to the bottom of the sintering table body (100). The two ends of the fixing plate (303) pass through high-temperature ceramic bolts (304), and the high-temperature ceramic bolts (304) are threaded to the bottom of the sintering table body (100).

6. The ceramic tube column sintering stage assembly according to claim 5, characterized in that, Each sintering platform body (100) has a fixed enclosure plate (400) fitted on its outer wall. The upper end of the fixed enclosure plate (400) is provided with a collection trough (401). The two ends of the fixed plate (303) are fixedly connected with support plates (306). The bottom of the fixed enclosure plate (400) is attached to the upper end of the support plate (306). An inclined surface is provided at the outer edge of the sintering platform body (100).

7. The ceramic tube column sintering stage assembly according to claim 1, characterized in that, A reinforcing rib (104) is fixedly connected at the center of the upper end of the sintering table body (100), and the axis of the reinforcing rib (104) is perpendicular to the axis of each V-shaped support (200).

8. The ceramic tube column sintering stage assembly according to claim 7, characterized in that, Each reinforcing rib (104) has a triangular groove (105) located inside each V-shaped support (200).

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