graphite crucible

Abstract

The utility model relates to a graphite crucible belongs to high temperature smelting equipment technical field. Among them, graphite crucible includes: the crucible body has the first wall body and second wall body with the wall thickness is formed, and the first wall body is located the outside of second wall body, the top of second wall body is lower than the top of first wall body, to make second wall body and first wall body form the step between, the cover body, cover is established on the step, among them, the recess is provided on the first wall body, and the recess is along the circumference of the crucible body and sets up, and the depth of recess is greater than 0 and is less than or equal to 10. Through the recess along the circumference of the crucible body and sets up, to make the gripper of mobile equipment when the graphite crucible is clamped, the gripper can be held at the recess, to realize the quick positioning of the crucible body, simultaneously, still can make at least partial gripper can be housed in the recess, with the recess forms the card and holds, avoids the sliding between the gripper and the crucible body, to avoid the occurrence of the fall of the crucible body, improves the service life of the crucible.

Description

Technical Field

[0001] This application relates to a graphite crucible, belonging to the technical field of high-temperature melting equipment. Background Technology

[0002] Graphite crucibles are high-temperature containers made using the excellent properties of graphite. They play a key role in many industrial and scientific research fields. Their core function is to serve as containers for holding materials and carrying out melting, refining, or chemical reactions at high temperatures.

[0003] In the high-end manufacturing industry, the demand for advanced materials is increasing, including various high-purity powders. A purification process is involved in powder processing to remove impurities. This purification process involves placing the powder in a crucible and using high temperature to vaporize the impurities, which are then expelled through vents on the crucible, ultimately purifying the powder. High-temperature, low-vacuum furnaces are typically used for powder purification. During the purification process, it is crucial to ensure that heat can be conducted into the crucible and that vaporized impurities can be expelled from it.

[0004] However, powder purification requires high temperatures, and after purification, the graphite crucible needs to be moved to the target location before the powder is poured out. Throughout this process, the graphite crucible undergoes thermal expansion and contraction, making it prone to cracking and damage. Furthermore, during the movement of the graphite crucible, the grippers of the moving device are in direct contact with the outer wall of the crucible, posing a risk of slippage and potentially causing the crucible to break, thus reducing its lifespan.

[0005] Therefore, it is necessary to improve the existing technology to overcome the aforementioned defects. Utility Model Content

[0006] The purpose of this application is to provide a graphite crucible that can make stable contact with the grippers of mobile devices and prevent deformation at high temperatures, thereby improving the service life of the graphite crucible.

[0007] The purpose of this application is to achieve the following technical solution: a graphite crucible, comprising:

[0008] The crucible body has a first wall and a second wall forming a wall thickness, the first wall being located outside the second wall; the top of the second wall is lower than the top of the first wall, so that a step is formed between the second wall and the first wall;

[0009] A cover is placed on the steps;

[0010] The first wall has a groove, which is arranged along the circumference of the crucible body; the depth of the groove is greater than 0 and less than or equal to 10.

[0011] In one embodiment, the depth of the groove is greater than or equal to 5 and less than or equal to 8.

[0012] In one embodiment, the inner wall of the groove is an uneven surface.

[0013] In one embodiment, in the height direction, there is a first distance between the top of the groove and the top of the first wall, and a second distance between the bottom of the groove and the top of the first wall, the ratio between the first distance and the second distance being in the range of 0.5-0.8.

[0014] In one embodiment, the ratio between the first distance and the second distance is 0.6.

[0015] In one embodiment, the inner wall of the cover is provided with an air guide groove and a first exhaust hole communicating with the air guide groove;

[0016] The crucible body is provided with a gas guiding channel that communicates with the first exhaust hole, so that the gas in the crucible body enters the first exhaust hole through the gas guiding groove and flows out of the crucible body through the gas guiding channel.

[0017] In one embodiment, the air channel is formed between the first wall and the second wall and extends along the height direction.

[0018] In one embodiment, the bottom of the air passage is located above the groove in the height direction.

[0019] In one embodiment, the air guide groove is arranged circumferentially along the cover, and multiple first exhaust holes are provided, with the multiple first exhaust holes arranged circumferentially along the cover.

[0020] Compared with the prior art, this application has the following beneficial effects: By providing a groove on the first outer wall of the crucible body, the groove is arranged along the circumference of the crucible body, so that when the gripper of the mobile device grips the graphite crucible, the gripper can hold it in the groove, thereby achieving rapid positioning of the crucible body; at the same time, since the depth of the groove is greater than 0 and less than or equal to 10, at least part of the gripper can be accommodated in the groove, forming a clamping relationship with the groove, preventing the gripper from sliding between the gripper and the crucible body, thereby preventing the crucible body from falling and improving the service life of the crucible; furthermore, due to the presence of the groove, the crucible body expands under high temperature, and the groove can provide space for the expansion of the crucible body, preventing the crucible body from cracking when heated, thereby extending the service life of the crucible body. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the graphite crucible of this application.

[0022] Figure 2 yes Figure 1 Cross-sectional structural diagram. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0024] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] Please see Figure 1 and Figure 2 As shown, a graphite crucible in a preferred embodiment of this application can be placed in a vacuum furnace. The graphite crucible is made of graphite and can withstand extremely high temperatures. It is used to melt various metals, alloys and non-metallic materials. After melting, it can be directly used as a transfer container to pour the molten liquid into a mold or ingot mold for shaping.

[0027] In this embodiment, the purification of powder using a graphite crucible is used as an example for specific explanation. High temperatures are required during powder purification, and after purification, the graphite crucible needs to be moved to the target location before the powder is poured out. Throughout this process, the graphite crucible undergoes thermal expansion and contraction, making it prone to cracking and damage. Furthermore, during the movement of the graphite crucible, the grippers of the moving device are in direct contact with the outer wall of the crucible, posing a risk of slippage and potentially causing the crucible to break, thus reducing its lifespan.

[0028] To avoid the aforementioned problems, the graphite crucible in this embodiment includes a crucible body 1 and a lid 2. The crucible body 1 has an opening to form a first wall 13 and a second wall 14 with a wall thickness, and the first wall 13 is located outside the second wall 14. That is, the crucible body 1 has a first wall 13 and a second wall 14, and the crucible body 1 has a wall thickness. This embodiment does not specifically limit the wall thickness of the crucible body 1, and it can be determined according to the actual situation to meet the high-temperature requirements in production. The first wall 13 is the outer wall, and the second wall 14 is the inner wall.

[0029] The top of the second wall 14 is lower than the top of the first wall 13, forming a step between the two walls. The cover 2 is placed on the step to shield the interior of the crucible body 1, preventing powder from floating directly out of the interior of the crucible body 1 in a high-temperature environment.

[0030] After powder purification is completed, the grippers of the mobile device directly contact the crucible body 1 to clamp and fix it. In this embodiment, a groove 11 is provided on the first wall 13, and the groove 11 is arranged circumferentially along the crucible body 1. The purpose of this arrangement is that when the grippers contact the crucible body 1, the grippers can extend into the groove 11, thereby forming a resisting state with the inner wall of the groove 11, preventing it from sliding with the crucible body 1 during movement, thus avoiding the risk of the crucible body 1 falling off and extending the service life of the crucible body 1.

[0031] Meanwhile, since the powder needs high temperature during the purification process, and the crucible body 1 is made of graphite, graphite will expand under high temperature. The groove 11 provides space for the expansion of the crucible body 1, preventing the crucible body 1 from breaking during the expansion process, and further ensuring the service life of the crucible body 1.

[0032] In this embodiment, the depth of the groove 11 is greater than 0 and less than or equal to 10. Preferably, the depth of the groove 11 is greater than or equal to 5 and less than or equal to 8 to meet the requirements. It is worth noting that the above values ​​include all lower and upper values ​​that increase by one unit from the lower limit to the upper limit, and there needs to be at least a two-unit interval between any lower value and any higher value.

[0033] For example, the depth of groove 11 is greater than 0 and less than or equal to 10. Furthermore, the depth of groove 11 is greater than or equal to 5 and less than or equal to 8, in order to illustrate values ​​such as 6 and 7 that are not explicitly listed above.

[0034] As mentioned above, the example range with intervals of 1 does not preclude growth with intervals of appropriate units such as 2, 3, etc. These are merely examples intended to clarify the point, and it can be assumed that all possible combinations of values ​​listed between the minimum and maximum values ​​are explicitly described in this specification in a similar manner.

[0035] Unless otherwise stated, all ranges include the endpoints and all numbers between them. The terms "approximately" or "about" used with ranges apply to both endpoints of the range. Thus, "approximately 20 to 30" is intended to cover "approximately 20 to approximately 30," including at least the specified endpoints.

[0036] Other limitations on numerical ranges mentioned in this article can be found in the above description and will not be repeated here.

[0037] Furthermore, to further ensure the clamping stability between the grippers and the crucible body 1, in this embodiment, the inner wall of the groove 11 is an uneven surface to increase the coefficient of friction. In this embodiment, the uneven surface can be a wavy surface, a convex surface, etc., and is not specifically limited here, but depends on the actual situation.

[0038] In the height direction, there is a first distance between the top of the groove 11 and the top of the first wall 13, and a second distance between the bottom of the groove 11 and the top of the first wall 13. The ratio between the first distance and the second distance is in the range of 0.5-0.8. The purpose of this arrangement is to ensure space for expansion of the upper and lower parts of the crucible body 1. Since the thickness of the lower part of the crucible body 1 is less than or equal to the thickness of the upper part of the crucible body 1, the groove 11 is located at the upper part of the crucible body 1 to prevent the crucible body 1 from breaking.

[0039] Furthermore, by providing a groove 11, and the ratio between the first distance and the second distance being in the range of 0.5-0.8, the center line of the crucible body 1 is set to pass through the groove 11, which facilitates the subsequent rotation of the opening of the crucible body 1 downward after it is taken out of the furnace, thereby realizing the function of pouring out the material inside the crucible body 1.

[0040] Furthermore, the ratio between the first distance and the second distance is 0.6. It is worth noting that the above values ​​include all lower and upper values ​​that increase by one unit from the lower limit to the upper limit, with at least a two-unit interval between any lower value and any higher value.

[0041] These are merely examples intended to be clearly illustrated; it can be assumed that all possible combinations of values ​​listed between the minimum and maximum values ​​are clearly explained in the specification in a similar manner.

[0042] Unless otherwise stated, all ranges include the endpoints and all numbers between them. The terms "approximately" or "about" used with ranges apply to both endpoints of the range. Thus, "approximately 20 to 30" is intended to cover "approximately 20 to approximately 30," including at least the specified endpoints.

[0043] The inner wall of the cover 2 is provided with a gas guide groove and a first exhaust hole 21 communicating with the gas guide groove. The crucible body 1 is provided with a gas guide channel 12 communicating with the first exhaust hole 21, so that the gas inside the crucible body 1 enters the first exhaust hole 21 through the gas guide groove, and flows to the outside of the crucible body 1 through the gas guide channel 12, preventing the generation of huge pressure inside the crucible body 1 and causing the crucible body 1 to break, thereby further improving the service life of the crucible body 1. The gas guide groove is arranged along the circumference of the cover 2, and multiple first exhaust holes 21 are provided, which are arranged along the circumference of the cover 2.

[0044] The gas guiding channel 12 is formed between the first wall 13 and the second wall 14 and extends along the height direction. In the height direction, the bottom of the gas guiding channel 12 is located above the groove 11. This arrangement aims to prevent the portion containing the gas guiding channel 12 from expanding and cracking under high temperature conditions, thus ensuring the strength of the crucible body 1 and extending its service life.

[0045] Furthermore, after the purification process is completed, when it is necessary to move the graphite crucible to the target location, lifting screws can be inserted into the gas channel 12 to fix and lift the graphite crucible.

[0046] In summary: By providing a groove 11 on the first outer wall of the crucible body 1, with the groove 11 arranged circumferentially along the crucible body 1, the grippers of the mobile device can clamp onto the groove 11 when gripping the graphite crucible, thereby achieving rapid positioning of the crucible body 1. Simultaneously, since the depth of the groove 11 is greater than 0 and less than or equal to 10, at least part of the grippers can be accommodated within the groove 11, forming a locking mechanism and preventing slippage between the grippers and the crucible body 1, thus preventing the crucible body 1 from falling and improving its service life. Furthermore, due to the presence of the groove 11, the crucible body 1 expands under high temperature conditions, and the groove 11 provides space for this expansion, preventing the crucible body 1 from cracking when heated, thereby extending its lifespan.

[0047] The above is only one specific implementation of this application, and any other improvements made based on the concept of this application shall be considered within the scope of protection of this application.

Claims

1. A graphite crucible, characterized in that, include: The crucible body has a first wall and a second wall forming a wall thickness, the first wall being located outside the second wall; The top of the second wall is lower than the top of the first wall, so that a step is formed between the second wall and the first wall; A cover is placed on the steps; The first wall has a groove, which is arranged along the circumference of the crucible body; the depth of the groove is greater than 0 and less than or equal to 10.

2. The graphite crucible as described in claim 1, characterized in that, The depth of the groove is greater than or equal to 5 and less than or equal to 8.

3. The graphite crucible as described in claim 1, characterized in that, The inner wall of the groove is an uneven surface.

4. The graphite crucible as described in claim 1, characterized in that, In the height direction, there is a first distance between the top of the groove and the top of the first wall, and a second distance between the bottom of the groove and the top of the first wall, and the ratio between the first distance and the second distance is in the range of 0.5-0.

8.

5. The graphite crucible as described in claim 4, characterized in that, The ratio between the first distance and the second distance is 0.

6.

6. The graphite crucible according to any one of claims 1 to 5, characterized in that, The inner wall of the cover is provided with an air guide groove and a first exhaust hole communicating with the air guide groove. The crucible body is provided with a gas guiding channel that communicates with the first exhaust hole, so that the gas in the crucible body enters the first exhaust hole through the gas guiding groove and flows out of the crucible body through the gas guiding channel.

7. The graphite crucible as described in claim 6, characterized in that, The air guide channel is formed between the first wall and the second wall and extends along the height direction.

8. The graphite crucible as described in claim 7, characterized in that, In the height direction, the bottom of the air guide channel is located above the groove.

9. The graphite crucible as described in claim 6, characterized in that, The air guide groove is arranged along the circumference of the cover, and multiple first exhaust holes are provided, with the multiple first exhaust holes arranged along the circumference of the cover.

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