Combined crucible for melting siliconizing of carbon-ceramic brake disc

Abstract

The utility model belongs to the technical field of ultrahigh-temperature composite materials, and particularly relates to a combined crucible for melting and siliconizing a carbon-ceramic brake disc, which comprises a plurality of crucible base bodies and a cover plate which are arranged in a laminated manner, and the cover plate is buckled at the top of the crucible base bodies; an upward continuous flower-shaped key groove is formed in the top of the crucible base body, a downward continuous flower-shaped key groove is formed in the bottom of the crucible base body, and a downward continuous flower-shaped key groove is formed in the bottom of the cover plate; when a plurality of layers of carbon-carbon crucibles are placed, flower-shaped key grooves of the crucibles on the upper layer and the lower layer can be accurately matched, it is guaranteed that each layer of crucible in a single stock column can be properly matched with two adjacent layers of crucibles, and the stability of the stock column is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultra-high temperature composite materials, and in particular relates to a combined crucible for melting and siliconizing a carbon ceramic brake disc. Background Art

[0002] With the strong development of new energy vehicles in China, the market share of new energy vehicles is increasing day by day. At the same time, carbon ceramic brake discs, with their excellent performance and lightweight advantages, are also ushering in opportunities for large-scale sales with the development of new energy vehicles. Major vehicle manufacturers have deployed carbon ceramic brake discs to reduce costs and improve efficiency.

[0003] The production process of carbon ceramic brake discs is extremely complex, and melt siliconization is one of its important production processes. This process requires placing the semi-finished carbon ceramic brake disc and silicon material in a crucible, and then placing the crucible in a high-temperature furnace for melt siliconization. However, due to the disadvantages of the structural design of ordinary crucibles, most crucibles are of a unified cylindrical structure. In order to reduce production costs, companies often place multi-column crucibles (carbon ceramic discs are placed in crucibles) in a single high-temperature furnace. In the middle of each layer of crucibles in a single column, multiple separate graphite blocks are used as support, which poses a risk of column collapse and placing graphite blocks will inevitably reduce the use space in the furnace; and most of the heating elements of the high-temperature furnace are located at the top, and the top temperature is relatively high, so a cover plate needs to be placed on the top crucible of each column to prevent the temperature from being too high and affecting the melting effect. However, the cover plate does not match the crucible structure, and even if the cover plate is placed, the effect is not obvious; and in order to reduce the area occupied by the crucible in the furnace and improve the utilization rate of the high-temperature furnace, a gripper structure is often not set on the outside of the crucible, which makes it inconvenient to manually take the crucible, and there is a risk of the crucible falling and breaking. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a combined crucible for molten siliconization of carbon-ceramic brake discs, which is used to solve a series of problems existing in crucibles for molten siliconization of carbon-ceramic brake discs.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A combined crucible for molten siliconization of a carbon-ceramic brake disc, comprising a plurality of stacked crucible bases and cover plates, wherein the cover plate is buckled on the top of the crucible base; the top of the crucible base is provided with an upward continuous flower-shaped keyway, the bottom is provided with a downward continuous flower-shaped keyway, and the bottom of the cover plate is provided with a downward continuous flower-shaped keyway;

[0007] The flower-shaped key groove at the top of the crucible base includes adjacently arranged crucible top groove and crucible top convex groove; the flower-shaped key groove at the bottom of the crucible base includes adjacently arranged crucible bottom groove and crucible bottom convex groove; the flower-shaped key groove at the bottom of the cover plate includes adjacently arranged cover bottom groove and cover bottom convex groove.

[0008] Furthermore, the wall thickness of the crucible base is 5-8 mm.

[0009] Furthermore, the total height of the combined crucible is 90-120 mm.

[0010] Furthermore, the thickness of the cover plate is 5-8 mm.

[0011] Furthermore, the flower-shaped key groove at the bottom of the cover plate is matched and connected with the flower-shaped key groove at the top of the top crucible base.

[0012] The beneficial effects of the utility model are as follows:

[0013] (1) The utility model provides a continuous flower-shaped keyway at the bottom of the crucible base, wherein two adjacent keyways are one convex groove and one open groove, and are distributed in an array at the bottom of the crucible. The flower-shaped keyway grooves and the convex grooves distributed at the top and bottom of the crucible base are in the same position. When placing multiple layers of carbon-carbon crucibles, the flower-shaped keyways of the crucibles in the upper and lower layers can be accurately matched, thereby ensuring that each layer of the crucible in a single material column can be properly matched with the two adjacent layers of the crucibles, thereby improving the stability of the material column.

[0014] (2) The utility model adopts a keyway structure, which reduces production costs and improves furnace utilization compared to the traditional method of separately setting graphite blocks as supports;

[0015] (3) The utility model ensures the melting and siliconizing effect of the carbon ceramic plate in the top crucible through the cooperation between the crucible and the cover plate, thereby ensuring the performance of the product; the flower-shaped keyway structure of the crucible can be used as a grip for users to take the crucible, which improves the convenience of employees' operation and avoids the risk of bumping during the transportation of the crucible. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the crucible base structure in the utility model;

[0018] Figure 3 This is a schematic diagram of the cover structure in the utility model;

[0019] Among them: 1. crucible base; 2. crucible top groove; 3. crucible top convex groove; 4. crucible bottom groove; 5. crucible bottom convex groove; 6. cover plate; 7. cover bottom convex groove; 8. cover bottom groove; 9. through hole. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the drawings required for the implementation are briefly introduced below. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. The implementation methods cannot be described one by one here, but the implementation methods of the present invention are not therefore limited to the following implementation methods.

[0022] It should be pointed out that the front end, front side and front part mentioned in the following embodiment are all the forward direction of the drilling, anchoring and protecting machine, and the rear is relative to the forward direction. Similarly, up, down, left and right are all referred to the forward direction of the drilling, anchoring and protecting machine, which will not be repeated below.

[0023] Example: A combined crucible for melting and siliconizing carbon ceramic brake discs, the structure of which is referenced to Figure 1 As shown, it comprises a plurality of stacked crucible bases 1 and cover plates 6, the cover plate 6 being buckled on the top of the crucible base 1; the top of the crucible base 1 is provided with an upward continuous flower-shaped keyway, the bottom is provided with a downward continuous flower-shaped keyway, and the bottom of the cover plate 6 is provided with a downward continuous flower-shaped keyway;

[0024] The total height of the combined crucible is designed to be 90-120 mm, which ensures that the carbon ceramic plate and silicon material contained in the crucible have sufficient fusion space, and more crucible bases 1 can be placed, fully releasing the utilization rate of the furnace to achieve the optimal use of space.

[0025] Reference Figure 2 As shown, the flower-shaped keyway at the top of the crucible base 1 includes adjacently arranged crucible top grooves 2 and crucible top convex grooves 3; the flower-shaped keyway at the bottom of the crucible base 1 includes adjacently arranged crucible bottom grooves 4 and crucible bottom convex grooves 5; the number of grooves and convex grooves in the continuous flower-shaped keyway is equal, and the specific number can be 6-8, and the size height is 10-15mm. This structure ensures the stability of the material column when the multi-layer crucible bases are arranged.

[0026] The wall thickness of the crucible base 1 is 5-8 mm, so as to ensure that the crucible base 1 has good thermal conductivity on the basis of high use strength;

[0027] Reference Figure 3 As shown, the flower-shaped key groove at the bottom of the cover plate 6 includes a cover plate bottom groove 8 and a cover plate bottom convex groove 7 which are adjacently arranged.

[0028] The thickness of the cover plate 6 is 5-8 mm, which can effectively prevent the carbon ceramic plate placed in the top crucible from being placed close to the heating element and causing poor molten siliconization effect;

[0029] The flower-shaped keyway at the bottom of the cover plate 6 is matched and connected with the flower-shaped keyway at the top of the top crucible base 1, and finally a combined carbon-ceramic brake disc molten silicon infiltrated material column is formed in the high-temperature furnace.

[0030] When in use, after placing multiple layers of crucibles in a single material column, a certain gap is set between each layer of crucibles to ensure a uniform temperature difference and improve melting efficiency; the flower-shaped keyway structure of the crucible base 1 can be used as a gripper for users to take the crucible to prevent the crucible from falling and being damaged during the handling process;

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0033] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0034] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A combined crucible for molten siliconization of carbon ceramic brake discs, comprising a plurality of stacked crucible bases (1) and cover plates (6), characterized in that: The cover plate (6) is buckled on the top of the crucible base (1); the top of the crucible base (1) is provided with a continuous flower-shaped keyway facing upwards, the bottom is provided with a continuous flower-shaped keyway facing downwards, and the bottom of the cover plate (6) is provided with a continuous flower-shaped keyway facing downwards; The flower-shaped key groove on the top of the crucible base (1) comprises adjacently arranged crucible top grooves (2) and crucible top convex grooves (3); the flower-shaped key groove on the bottom of the crucible base (1) comprises adjacently arranged crucible bottom grooves (4) and crucible bottom convex grooves (5); and the flower-shaped key groove on the bottom of the cover plate (6) comprises adjacently arranged cover plate bottom grooves (8) and cover plate bottom convex grooves (7).

2. A combined crucible for melt siliconizing of carbon ceramic brake discs according to claim 1, characterized in that: The wall thickness of the crucible base (1) is 5-8 mm.

3. The combined crucible for melt siliconizing of carbon ceramic brake discs according to claim 1, characterized in that: The total height of the combined crucible is 90-120 mm.

4. The combined crucible for melt siliconizing of carbon ceramic brake discs according to claim 1, characterized in that: The thickness of the cover plate (6) is 5-8 mm.

5. The combined crucible for melt siliconizing of carbon ceramic brake discs according to claim 1, characterized in that: The flower-shaped key groove at the bottom of the cover plate (6) is matched and connected with the flower-shaped key groove at the top of the top crucible base (1).

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