A combined crucible

Abstract

The utility model relates to the crucible technical field discloses a combined crucible, including cylinder structure, end cover and connecting structure: the inside hollow of cylinder structure and both ends open, end cover sets up in the open end of cylinder structure, and the circumferential wall of end cover forms the groove body with the inner wall of cylinder structure, connecting structure sets up in the groove body, and the inner wall of connecting groove body and the inner wall of cylinder structure. When processing combined crucible, the cylinder, end cover is extruded into shape respectively, then stoving, after stoving, end cover sets up in the open end of cylinder structure, and is connected end cover and cylinder structure through connecting structure, and the cylinder and end cover are formed respectively and then are spliced into an integrity through the mode of assembly, reduce the processing difficulty in the extrusion forming process of crucible blank.

Description

Technical Field

[0001] This utility model relates to the field of crucible technology, and specifically to a combined crucible. Background Technology

[0002] The graphitization process of negative electrode materials requires a large number of crucible-type refractory kiln furniture. In order to improve the service life of crucibles, silicon carbide ceramic materials are currently used to manufacture crucibles.

[0003] Currently, ceramic crucibles are generally formed by extruding a blank in one piece, drying the blank, and then sintering it to form a ceramic crucible.

[0004] In the traditional crucible blank processing process, the crucible cylinder and end cap are integrally extruded. The extrusion pressure required during extrusion is relatively large, and the fluidity requirements of the raw materials for the crucible blank are relatively high, which makes the crucible blank forming difficult. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a combined crucible to solve the technical problem that the integral extrusion molding of the crucible body and end cap in the prior art leads to high difficulty in forming the crucible blank.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This utility model provides a combined crucible, comprising: A cylindrical structure, wherein the interior of the cylindrical structure is hollow and open at both ends; An end cap, disposed at one open end of the cylindrical structure, wherein the peripheral wall of the end cap forms a groove relative to the inner wall of the cylindrical structure; and A connecting structure is provided in the groove and connects the inner wall of the groove and the inner wall of the cylindrical structure.

[0007] In one embodiment, the groove includes an annular groove that surrounds the end cap; The connection structure includes a first adhesive layer, which is arranged circumferentially along the annular groove and connects the inner wall of the annular groove and the inner wall of the cylindrical structure.

[0008] In one embodiment, the end cap includes a first column and a second column connected together, the outer diameter of the second column being smaller than that of the first column, and the annular groove being formed between the peripheral wall of the second column and the end face of the first column.

[0009] In one embodiment, the end cap is built into the cylindrical structure.

[0010] In one embodiment, the second column is disposed at one end of the first column near the outside of the cylindrical structure.

[0011] In one embodiment, a retaining ring is formed at one open end of the cylindrical structure, the inner diameter of which is smaller than the outer diameter of the first column and larger than the outer diameter of the second column.

[0012] In one embodiment, the groove includes a slot disposed radially along the end cap; The cylindrical structure has an insertion hole relative to the slot; The connection structure includes a pin, which is inserted into the socket and the slot.

[0013] In one embodiment, the cylindrical structure includes a plurality of cylindrical bodies, which are coaxially arranged and connected in sequence.

[0014] In one embodiment, adjacent cylinders are connected by a plug-in connection.

[0015] In one embodiment, the cylindrical structure further includes a second adhesive layer that connects two adjacent cylindrical bodies.

[0016] Compared with the prior art, the combined crucible provided by this utility model involves extruding and molding the cylinder body and end cap separately, then drying them. After drying, the end cap is placed at one open end of the cylinder structure, and the end cap and cylinder structure are connected by a connecting structure. The cylinder body and end cap are molded separately and then assembled into a whole, which reduces the processing difficulty in the extrusion molding process of the crucible blank.

[0017] By setting a groove on the circumferential wall of the end cap and connecting the inner wall of the groove with the inner wall of the cylindrical structure through a connecting structure, the connection between the end cap and the cylindrical structure is achieved, while increasing the contact area between the connecting structure and the end cap. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a combined crucible provided in an embodiment of the present invention; Figure 2 This is an exploded view of a portion of the structure of a combined crucible provided in an embodiment of this utility model; Figure 3 This is a cross-sectional view of a combined crucible provided in an embodiment of the present invention; Figure 4 This is a cross-sectional view of a portion of the structure of a combined crucible provided in an embodiment of this utility model; Figure 5 This is a cross-sectional view of a combined crucible provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: Cylinder structure 1; Cylinder 11; Retaining ring 12; Second adhesive layer 13; Insertion hole 1a; End cap 2; First column 21; Second column 22; Groove 2a; Annular groove 2a1; Slot 2a2; Connection structure 3; first adhesive layer 31; pin 32. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] To address the technical challenge of forming crucible blanks due to the integrated extrusion molding of the crucible body and end caps, this invention provides a modular crucible that can be assembled into a complete crucible, reducing the processing difficulty of the crucible blank.

[0022] Please see Figure 2 , Figure 2 The above is an exploded view of a combined crucible in one embodiment of the present invention. The combined crucible includes a cylindrical structure 1, an end cap 2, and a connecting structure 3. The cylindrical structure 1 is hollow inside and open at both ends. The end cap 2 is disposed at one open end of the cylindrical structure 1, and a groove 2a is formed on the peripheral wall of the end cap 2 relative to the inner wall of the cylindrical structure 1. The connecting structure 3 is disposed in the groove 2a and connects the inner wall of the groove 2a and the inner wall of the cylindrical structure 1.

[0023] Specifically, when processing the modular crucible, the cylinder body and end cap 2 are extruded and formed separately, and then dried. After drying, the end cap 2 is placed at one open end of the cylinder structure 1, and the end cap 2 and the cylinder structure 1 are connected by the connecting structure 3. The cylinder body and end cap 2 are formed separately and then assembled into one piece, which reduces the processing difficulty in the extrusion forming process of the crucible blank.

[0024] By setting a groove 2a on the peripheral wall of the end cap 2 and connecting the inner wall of the groove 2a and the inner wall of the cylindrical structure 1 through the connecting structure 3, the connection between the end cap 2 and the cylindrical structure 1 is realized, while the contact area between the connecting structure 3 and the end cap 2 is increased.

[0025] It should be understood that the cylindrical structure 1 can be a cylindrical or prismatic cylindrical structure.

[0026] It should be understood that the connecting structure 3 can be a ceramic adhesive or a mechanical connection structure 3, etc. The groove 2a can be a notch opened on one side of the end cap 2, or it can be an annular groove 2a1 provided along the circumference of the end cap 2. Specifically, for example... Figure 2 , Figure 3 and Figure 4 As shown, in one embodiment, the groove 2a includes an annular groove 2a1, which surrounds the end cap 2; the connecting structure 3 includes a first adhesive layer 31, which is arranged circumferentially along the annular groove 2a1 and connects the inner wall of the annular groove 2a1 and the inner wall of the cylindrical structure 1.

[0027] By setting an annular groove 2a1, the first adhesive layer 31 is set along the circumference of the annular groove 2a1, so that the first adhesive layer 31 can connect the cylinder structure 1 and the end cap 2 along the circumference of the end cap 2. At the same time, the first adhesive layer 31 can also seal the gap between the end cap 2 and the cylinder structure 1 along the circumference.

[0028] It should be understood that the material of the first adhesive layer 31 can be a ceramic adhesive, which is filled into the annular groove 2a1 and connects the ceramic adhesive to the inner wall of the cylindrical structure 1; the material of the first adhesive layer 31 can also be formed by mixing silicon powder and thermoplastic resin.

[0029] It should be understood that the end cap 2 can be cylindrical, frustum-shaped, etc., specifically, such as Figure 2 and Figure 4 As shown, in one embodiment, the end cap 2 includes a first column 21 and a second column 22 connected to each other. The outer diameter of the second column 22 is smaller than that of the first column 21, and an annular groove 2a1 is formed between the peripheral wall of the second column 22 and the end face of the first column 21.

[0030] By setting the end cap 2 as a first column 21 and a second column 22, the combination of the second column 22 and the first column 21 can form an annular groove 2a1.

[0031] It should be understood that the end cap 2 can be disposed at the end of the cylindrical structure 1, partially embedded in the cylindrical structure 1, or built into the cylindrical structure 1. Specifically, for example... Figure 1 and Figure 4 As shown, in one embodiment, the end cap 2 is built into the cylindrical structure 1.

[0032] In this embodiment, by embedding the end cap 2 inside the cylindrical structure 1, the peripheral wall of the second column 22, the end of the first column 21, and the inner wall of the cylindrical structure 1 can be combined to form an annular groove 2a1 with one end open. The adhesive is placed in the annular groove 2a1, and after the adhesive is cured, a first adhesive layer 31 is formed.

[0033] It should be understood that the second column 22 can be located at one end of the first column 21, near or away from the outer side of the cylindrical structure 1. However, in order to facilitate the placement of the first adhesive layer 31 within the annular groove 2a1, therefore, as Figure 4As shown, in one embodiment, the second column 22 is disposed at one end of the first column 21 near the outside of the cylindrical structure 1.

[0034] In this embodiment, the above-mentioned arrangement makes the annular groove 2a1 formed between the second column 22 and the first column 21 located at one end of the end cap 2 near the outside of the cylindrical structure 1. Workers can directly fill the annular groove 2a1 with adhesive from one open end of the cylindrical structure 1 to form the first adhesive layer 31, which facilitates the setting of the first adhesive layer 31.

[0035] To strengthen the connection between the cylindrical structure 1 and the end cap 2, therefore, as follows: Figure 1 , Figure 2 and Figure 4 As shown, in one embodiment, a retaining ring 12 is formed at one open end of the cylindrical structure 1. The inner diameter of the retaining ring 12 is smaller than the outer diameter of the first column 21, and the inner diameter is larger than the outer diameter of the second column 22. The cylindrical structure 1 includes a cylindrical body 11 and a retaining ring 12. The retaining ring 12 is disposed at the open end of the cylindrical body 11 and is integrally formed or bonded to the cylindrical body 11.

[0036] By setting the retaining ring 12, the retaining ring 12 can restrict the first column 21 from sliding out of the cylindrical structure 1. At the same time, the retaining ring 12 is set on the opening side of the annular groove 2a1, and the retaining ring 12 can restrict the adhesive filled into the annular groove 2a1 from flowing outward. Meanwhile, the adhesive can connect the first column 21, the second column 22, the inner wall of the cylindrical structure 1 and the retaining ring 12, which can strengthen the connection strength.

[0037] In order to achieve the positioning and fixation of end cap 2 and cylindrical structure 1, therefore, as follows: Figure 2 As shown, in one embodiment, the groove 2a includes a slot 2a2, which is arranged radially along the end cap 2; the cylindrical structure 1 has an insertion hole relative to the slot 2a2; the connecting structure 3 includes a pin 32, which is inserted into the insertion hole 1a and the slot 2a2.

[0038] When assembling the end cap 2 with the cylindrical structure 1, the slot 2a2 of the end cap 2 is aligned with the insertion hole 1a of the cylindrical structure 1, so that the pin 32 can be inserted into the insertion hole 1a and the slot 2a2. Combined with the cooperation between the peripheral wall of the end cap 2 and the inner wall of the cylindrical structure 1, the end cap 2 and the cylindrical structure 1 can be fixed and positioned.

[0039] It should be understood that, in this embodiment, the end cap 2 is at least partially embedded in the cylindrical structure 1.

[0040] It should be understood that the combined crucible can simultaneously have the structure associated with the pin 32 and the first adhesive layer 31.

[0041] like Figure 1 and Figure 2As shown, in one embodiment, the combined crucible is provided with a first adhesive layer 31 and a pin 32, a slot 2a2 is formed on the peripheral wall of the first column 21 and the second column 22, and the first adhesive layer 31 is provided in the annular groove 2a1.

[0042] In this embodiment, by setting the pin 32, the end cap 2 and the cylindrical structure 1 can be positioned, and by setting the annular groove 2a1 and the first adhesive layer 31, the sealing and connection between the end cap 2 and the cylindrical structure 1 can be achieved.

[0043] It should be understood that the pin 32 can also be connected and sealed to the socket 1a and the slot 2a2 by filling with adhesive.

[0044] The longer the crucible, the more difficult it is to form the blank through extrusion. To reduce the processing difficulty of the long cylindrical structure 1, therefore, as follows... Figure 5 As shown, in one embodiment, the cylindrical structure 1 includes a plurality of cylindrical bodies 11, which are coaxially arranged and connected sequentially. The cylindrical structure 1 also includes a retaining ring 12, which is disposed at an end of a cylindrical body 11 and is integrally formed or bonded to the cylindrical body 11.

[0045] In this embodiment, by setting the cylindrical structure 1 as multiple cylindrical bodies 11, and connecting and splicing the multiple cylindrical bodies 11 in sequence to form a long structure, the processing difficulty of the blank of a single cylindrical body 11 is reduced.

[0046] It should be understood that adjacent cylindrical structures 1 can be connected by means of adhesives, snap-fitting, etc., specifically, such as Figure 5 As shown, in one embodiment, adjacent cylinders 11 are connected by a plug-in connection.

[0047] The adjacent cylinders 11 are positioned and connected by insertion. The insertion can be achieved by the cooperation of an annular boss and an annular groove, or by the insertion of a fixing rod and a fixing hole.

[0048] In order to connect and seal adjacent cylinders 11, therefore, as follows Figure 5 As shown, in one embodiment, the cylindrical structure 1 further includes a second adhesive layer 13, which connects two adjacent cylindrical bodies 11.

[0049] In this embodiment, by setting the second adhesive layer 13, adjacent cylinders 11 can be connected and the connection between adjacent cylinders 11 can be sealed. After setting the second adhesive layer 13, the bonded structure is sintered to form an integral cylinder structure 1.

[0050] It should be understood that the material of the second adhesive layer 13 can be a ceramic adhesive, which is filled into the annular groove 2a1 and connects the ceramic adhesive to the inner wall of the cylindrical structure 1; the material of the second adhesive layer 13 can also be formed by mixing silicon powder and thermoplastic resin.

[0051] It should be understood that the second adhesive layer 13 can be disposed in the gap between adjacent cylinders 11, or on the outer wall of the connection between adjacent cylinders 11.

[0052] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A composite crucible, characterized in that, include: A cylindrical structure, wherein the interior of the cylindrical structure is hollow and open at both ends; An end cap, disposed at one open end of the cylindrical structure, wherein the peripheral wall of the end cap forms a groove relative to the inner wall of the cylindrical structure; and A connecting structure is provided in the tank and connects the inner wall of the tank and the inner wall of the cylindrical structure.

2. The combined crucible according to claim 1, characterized in that, The groove includes an annular groove, which surrounds the end cap. The connection structure includes a first adhesive layer, which is arranged circumferentially along the annular groove and connects the inner wall of the annular groove and the inner wall of the cylindrical structure.

3. The combined crucible according to claim 2, characterized in that, The end cap includes a first column and a second column connected to each other. The outer diameter of the second column is smaller than that of the first column, and the annular groove is formed between the peripheral wall of the second column and the end face of the first column.

4. The combined crucible according to claim 3, characterized in that, The end cap is built into the cylindrical structure.

5. The combined crucible according to claim 4, characterized in that, The second column is disposed at one end of the first column near the outside of the cylindrical structure.

6. The combined crucible according to claim 5, characterized in that, A retaining ring is formed at one open end of the cylindrical structure. The inner diameter of the retaining ring is smaller than the outer diameter of the first column, and the inner diameter is larger than the outer diameter of the second column.

7. The combined crucible according to claim 1, characterized in that, The groove includes a slot, which is arranged radially along the end cap; The cylindrical structure has an insertion hole relative to the slot; The connection structure includes a pin, which is inserted into the socket and the slot.

8. The combined crucible according to claim 1, characterized in that, The cylindrical structure includes multiple cylindrical bodies, which are coaxially arranged and connected sequentially.

9. The combined crucible according to claim 8, characterized in that, The adjacent cylinders are connected by plug-in joints.

10. The combined crucible according to claim 8, characterized in that, The cylindrical structure also includes a second adhesive layer, which connects two adjacent cylindrical bodies.

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