Carbon protection plate forming die

By designing a mold for carbon-carbon protective plates, the carbon-carbon protective plates can be formed at one time, which solves the problem of low material utilization in the prior art, and achieves efficient utilization of materials and improves production efficiency.

CN222571648UActive Publication Date: 2025-03-07ZHEJIANG XINGHUI NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202420505515.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-15
Publication Date
2025-03-07
Estimated Expiration
2034-03-15

AI Technical Summary

Technical Problem

The material utilization rate of the carbon carbon protective plates in the prior art is extremely low, about 9.16%. Since the carbon protective plates are special-shaped parts, most of the materials of the flat blanks are milled and become garbage during the machining process.

Method used

A carbon protective plate molding mold is provided, including a mould, a base, a first mould, a second mould and a die core. Through the design of these moulds, the carbon protective plate can be formed in one go, reducing material waste.

Benefits of technology

It significantly improves the material utilization rate of carbon protective plates, saves raw materials and processing time, and improves production efficiency and economic benefits.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a charcoal guard plate forming die, which is used for forming a charcoal guard plate and comprises a male die, a base, a first female die, a second female die and a die core, the base is provided with a first annular groove, when the charcoal guard plate forming die is used, the second female die is clamped in the first annular groove, and the first female die and the die core are placed on the base to form a first space, a second space and a third space; the method comprises the following steps of: forming a space required for forming the carbon-carbon protective plate, adding a material required for manufacturing the carbon-carbon protective plate into the space, and pressurizing the male die, so that the male die, the first female die and the second female die extrude each other, and continuously closing the dies and demoulding to obtain the carbon-carbon protective plate. In the process, the carbon-carbon protective plate can be formed at a time, the used materials for manufacturing the carbon-carbon protective plate are greatly reduced, and the utilization rate of the materials for manufacturing the carbon-carbon protective plate is remarkably increased.
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Description

Technical Field

[0001] The utility model relates to the technical field of carbon-carbon guard plate manufacturing, in particular to a carbon-carbon guard plate forming die. Background Art

[0002] Carbon-carbon composite material is a new type of material suitable for high-temperature scenes. Under the protection of inert gas, its maximum operating temperature is above 2000°C. Carbon-carbon guard plate is a carbon-carbon composite material used for photovoltaic or semiconductor polycrystalline furnaces to play a role in thermal insulation. The existing technology for manufacturing carbon-carbon guard plates is to use a needle punching process to first form a flat preform, and then solidify the flat preform into a flat blank. The thickness of the flat blank is 60-65mm. The flat blank is machined into a carbon-carbon guard plate after carbonization, mixing and densification treatment. Because the carbon-carbon guard plate is a special-shaped part, and its height is 50-60mm and the thickness is only 5-6mm, more than 90% of the material of the flat blank is milled off and becomes garbage during the machining process, and the material utilization rate is extremely low (about 9.16%).

[0003] Therefore, how to improve the material utilization rate of manufacturing carbon-carbon protective plates is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a carbon-carbon guard plate forming die to improve the material utilization rate of manufacturing the carbon-carbon guard plate;

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

[0006] A carbon-carbon guard plate forming mold, used for forming a carbon-carbon guard plate, comprises a male mold, a base, a first female mold, a second female mold and a mold core, wherein:

[0007] The base is provided with a first annular groove, and the second die is annular, the circumference of which is clamped in the interior of the first annular groove and sleeved on the exterior of the first die;

[0008] The mold core is cylindrical and arranged in the middle of the base, and the height of the mold core is greater than the height of the first concave mold;

[0009] The first concave mold is annular and arranged on the base, and a first space for molding the outer edge of the carbon-carbon guard plate is formed between its outer wall and the outer wall of the second concave mold, and a second space for molding the inner edge of the carbon-carbon guard plate is formed between its inner wall and the outer wall of the mold core;

[0010] The punch is annular. When the carbon-carbon guard plate forming mold forms the carbon-carbon guard plate, the inner ring of the punch abuts against the mold core, and its outer ring abuts against the inner wall of the second die. A third space for forming the bottom plate of the carbon-carbon guard plate is formed between the bottom of the punch and the upper surface of the first die.

[0011] Optionally, in the above-mentioned carbon-carbon guard plate forming mold, the base is also provided with a second annular groove and a clamping groove, the second annular groove is used to clamp the first concave mold, and the clamping groove is used to clamp the mold core.

[0012] Optionally, in the above-mentioned carbon-carbon guard plate forming mold, the first die includes four splicing modules, the four splicing modules are spliced ​​to form an annular die, and the interior of the splicing modules is hollow in design.

[0013] Optionally, in the above-mentioned carbon-carbon guard plate forming mold, the second die includes a first combination module, a second combination module and a fixing component, the first combination module and the second combination module are combined to form an annular die, and the fixing component is used to connect the first combination module and the second combination module.

[0014] Optionally, in the above-mentioned carbon-carbon guard plate forming mold, the number of fixing components is two or more.

[0015] Optionally, in the above-mentioned carbon-carbon guard plate forming mold, the fixing assembly includes a first fixing block, a second fixing block and a fixing pin, the first fixing block is fixed to the outer wall of the first combination module, the second fixing block is fixed to the outer wall of the second combination module, and a fixing hole for passing the fixing pin is opened in the middle of the first fixing block and the second fixing block.

[0016] Optionally, in the above-mentioned carbon-carbon guard plate forming mold, the shape of the first die is an annular frustum.

[0017] Optionally, in the above-mentioned carbon-carbon guard plate forming mold, the male mold includes a top plate, a convex plate and a connecting plate. When the carbon-carbon guard plate forming mold forms the carbon-carbon guard plate, the top plate is used to cover the second female mold, and a third space for forming the bottom plate of the carbon-carbon guard plate is formed between the convex plate and the upper surface of the first female mold. The first end of the connecting plate is connected to the top plate, and the second end thereof is connected to the convex plate.

[0018] Optionally, in the above-mentioned carbon-carbon guard plate forming mold, a plurality of hanging rings are arranged on the upper surface of the base, and the hanging rings are welded to the base.

[0019] Optionally, in the above-mentioned carbon-carbon guard plate forming mold, the groove is annular or circular.

[0020] The carbon-carbon guard plate forming mold provided by the utility model, when in use, the second die is clamped to the first annular groove, the first die and the mold core are placed on the base to form the first space, the second space and the third space, that is, the space required for forming the carbon-carbon guard plate, the materials required for manufacturing the carbon-carbon guard plate are added into this space, and then the punch is pressurized so that the punch, the first die and the second die are squeezed against each other, and the molds are continuously closed, and the carbon-carbon guard plate can be obtained after demolding. In the above process, the carbon-carbon guard plate can be formed in one time, compared with the manufacturing process of the prior art that first forms a flat blank and then machines the flat blank to form the carbon-carbon guard plate, the materials used in the above process for manufacturing the carbon-carbon guard plate are greatly reduced, and the material utilization rate for manufacturing the carbon-carbon guard plate is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of a carbon-carbon guard plate blank in the prior art;

[0023] Figure 2 It is a schematic diagram of the structure of the carbon-carbon guard plate molding disclosed in the embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of a carbon-carbon guard plate forming mold disclosed in an embodiment of the utility model;

[0025] Figure 4 It is a structural schematic diagram of a carbon-carbon guard plate forming mold disclosed in an embodiment of the utility model;

[0026] Figure 5 A cross-sectional view of a carbon-carbon guard plate forming mold disclosed in an embodiment of the utility model;

[0027] Figure 6 A top view of a carbon-carbon guard plate forming mold disclosed in an embodiment of the utility model;

[0028] in:

[0029] Male mold 100, top plate 101, male plate 102, connecting plate 103;

[0030] Base 200, first annular groove 201, hanging ring 202;

[0031] A first concave mold 300, a splicing module 301;

[0032] A second die 400, a fixing assembly 401, a first fixing block 4011, a second fixing block 4012, a fixing pin 4013, a first assembly module 402, and a second assembly module 403;

[0033] Mold core 500;

[0034] Outer edge 600 , inner edge 601 , bottom plate 602 . DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making novel work are within the scope of protection of the utility model.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "top surface", "bottom surface" 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 positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] like Figure 3-Figure 6 As shown, the carbon-carbon guard plate forming mold disclosed in the utility model is used to form the carbon-carbon guard plate, including a male mold 100, a base 200, a first female mold 300, a second female mold 400 and a mold core 500, wherein the base 200 is provided with a first annular groove 201, the second female mold 400 is annular, and its circumference is clamped in the inside of the first annular groove 201, and is sleeved on the outside of the first female mold 300, the mold core 500 is cylindrical, and is arranged in the middle of the base 200, the height of the mold core 500 is greater than the height of the first female mold 300, the first female mold 300 is annular, and is arranged On the base 200, a first space for molding the outer edge 600 of the carbon-carbon protective plate is formed between its outer wall and the outer wall of the second die 400, and a second space for molding the inner edge 601 of the carbon-carbon protective plate is formed between its inner wall and the outer wall of the mold core 500. The punch 100 is annular. When the carbon-carbon protective plate molding mold molds the carbon-carbon protective plate, the inner ring of the punch 100 abuts against the mold core 500, and the outer ring abuts against the inner wall of the second die 400. A third space for molding the bottom plate 602 of the carbon-carbon protective plate is formed between the bottom of the punch 100 and the upper surface of the first die 300.

[0038] It should be noted that, in the prior art, the carbon fiber precursor needs to be chopped into 30mm to 100mm short strands, and the chopped strands are combed into a mesh, and then the mesh and the non-woven cloth are laminated and needled into a preform. Because the carbon fiber precursor is a bundle of strands, the purpose of this process is to make the carbon fiber precursor into a blank that can be pressed. Its principle is similar to that of turning cotton into a quilt, and then the preform is impregnated with resin and cured into a blank. The carbon-carbon guard plate forming mold disclosed in the utility model adopts carbon fiber precursor chopped into 30mm to 50mm, which is impregnated with resin and then loaded into a carbon-carbon guard plate forming mold for pressing. The shape of the pressed mold is determined by the carbon-carbon guard plate forming mold, and there is no need to make the chopped strands into a pressable preform, so the above steps and subsequent machining steps can be omitted, thereby shortening the time required for manufacturing the carbon-carbon guard plate.

[0039] The carbon-carbon guard plate forming mold provided by the utility model is used by clamping the second die 400 in the first annular groove 201, placing the first die 300 and the mold core 500 on the base 200 to form the first space, the second space and the third space, that is, forming the space required for forming the carbon-carbon guard plate, adding the materials required for manufacturing the carbon-carbon guard plate into this space, and then pressurizing the punch 100 so that the punch 100, the first die 300 and the second die 400 are squeezed against each other, and the molds are continuously closed, and the carbon-carbon guard plate can be obtained after demolding. In the above process, it is possible to form a carbon-carbon guard plate at one time. Figure 2 The carbon-carbon guard plate shown in the prior art is first formed as Figure 1 For the manufacturing process of the flat blank shown in the figure, and then machining the flat blank to form a carbon-carbon guard plate, the materials required for manufacturing the carbon-carbon guard plate used in the above process are greatly reduced, which significantly improves the material utilization rate of manufacturing the carbon-carbon guard plate.

[0040] It should be noted that, according to actual use and data calculation, the use of the charcoal-carbon guard plate forming mold disclosed in the utility model to manufacture charcoal-carbon guard plates can save 5.5 hours of processing time and shorten the delivery cycle of the charcoal-carbon guard plates compared with the prior art for manufacturing charcoal-carbon guard plates. Each charcoal-carbon guard plate can save 52.83-57.83 kg of raw materials. Based on 120 kg of carbon fiber raw materials, each charcoal-carbon guard plate can save 6339.6-6939.6 yuan in raw material costs. The remaining parameters are shown in the table below. It can be seen that the charcoal-carbon guard plate forming mold disclosed in the utility model for manufacturing charcoal-carbon guard plates greatly improves the economic benefits of manufacturing charcoal-carbon guard plates and significantly improves the material utilization rate of manufacturing charcoal-carbon guard plates.

[0041]

[0042] In order to optimize the above technical solution, the base 200 is also provided with a second annular groove and a clamping groove, the second annular groove is used to clamp the first die 300, and the clamping groove is used to clamp the mold core 500. Specifically, the first annular groove 201, the second annular groove and the clamping groove are concentric circles with decreasing radii, and the first annular groove 201, the second annular groove and the clamping groove are shallow grooves, which are respectively used to clamp the second die 400, the first die 300 and the mold core 500 to prevent them from moving during the molding process, thereby improving the production efficiency of the carbon-carbon guard plate. At the same time, during the assembly process of the carbon-carbon guard plate molding mold, the first annular groove 201, the second annular groove and the clamping groove can facilitate the positioning of the second die 400, the first die 300 and the mold core 500, thereby improving the assembly efficiency of the carbon-carbon guard plate.

[0043] In order to optimize the above technical solution, the first die 300 includes four splicing modules 301, and the four splicing modules 301 are spliced ​​to form an annular die, and the interior of the splicing module 301 is hollow. Specifically, the shape of the four splicing modules 301 can be four uniform quarter-circular rings, or four parts of different sizes, as long as they can be spliced ​​to form an annular die. It should be noted that in actual use, after the raw material is loaded into the carbon-carbon guard plate forming mold, the punch 100 is molded with the first die 300 and the second die 400, and the carbon-carbon guard plate forming mold is transferred as a whole to the pressing plate of the press, and the pressing plate presses the punch 100. In this process, the raw material is continuously compacted and finally forms the shape of the carbon-carbon guard plate. Therefore, the interior of the splicing module 301 is designed to be hollow, which can reduce the total weight of the carbon-carbon guard plate forming mold, thereby facilitating the transfer of the carbon-carbon guard plate forming mold. Specifically, the first die 300 is divided into four splicing modules 301 to facilitate product demolding. The utility model is not limited to the first die 300 including four splicing modules 301. The first die 300 may include two or more splicing modules 301 as long as they can be spliced ​​to form an annular die.

[0044] Furthermore, the mass of the raw material added to the carbon-carbon guard plate forming mold is the volume of the product blank*1.5g / cm 3 After the press compacts the raw materials into shape, the temperature is raised to 160-180℃, and the resin is solidified to shape the product. After the temperature of the carbon-carbon guard plate forming mold is cooled to room temperature, the desired shape characteristics of the product (carbon-carbon guard plate) can be obtained by demoulding.

[0045] In order to optimize the above technical solution, the second die 400 includes a first assembly module 402, a second assembly module 403 and a fixing assembly 401. The first assembly module 402 and the second assembly module 403 are combined to form an annular die, and the fixing assembly 401 is used to connect the first assembly module 402 and the second assembly module 403. Specifically, the thickness of the second die 400 is relatively small, and the thickness of the second die 400 is adapted to the groove width of the first annular groove 201, so the fixing assembly 401 is required to connect it to improve its stability during mold closing. Further, because the inner wall of the second die 400 needs to contact the raw material to form the product, the fixing assembly 401 is arranged on the outer wall of the second die 400, that is, arranged outside the first assembly module 402 and the second assembly module 403. Specifically, the second die 400 is divided into a first combination module 402 and a second combination module 403 to facilitate product demolding. The utility model is not limited to the second die 400 including only the first combination module 402 and the second combination module 403. The second die 400 may include three or more combination modules as long as they can be connected by the fixing component 401 to form an annular die.

[0046] In order to optimize the above technical solution, the number of fixing components 401 is two or more. Specifically, at least two fixing components 401 are required to fix the first combination module 402 and the second combination module 403. When the second die 400 includes three or more combination modules, the number of fixing components 401 is adapted to the number of combination modules. The operator can change the number of fixing components 401 according to the use needs, so that the structure of the second die 400 is more stable.

[0047] In order to optimize the above technical solution, the fixing assembly 401 includes a first fixing block 4011, a second fixing block 4012 and a fixing pin 4013. The first fixing block 4011 is fixed to the outer wall of the first combination module 402, and the second fixing block 4012 is fixed to the outer wall of the second combination module 403. The middle parts of the first fixing block 4011 and the second fixing block 4012 are provided with a fixing hole for the fixing pin 4013 to pass through. When in use, the fixing pin 4013 passes through the fixing hole in the middle of the first fixing block 4011 and the second fixing block 4012 to connect the first combination module 402 and the second combination module 403 together. Further, in order to make the connection between the first combination module 402 and the second combination module 403 more stable, the fixing pin 4013 can be arranged with an external thread, and the interior of the fixing hole can be arranged with an internal thread. When in use, the fixing pin 4013 is screwed into the fixing hole to tightly connect the first combination module 402 and the second combination module 403. Such an arrangement can stabilize the structure of the second die 400, thereby improving the production efficiency of the carbon-carbon guard plate.

[0048] In order to optimize the above technical solution, the shape of the first die 300 is an annular truncated cone. Specifically, the outer ring main view of the first die 300 is an isosceles trapezoid with the upper base at the top, and the inner ring main view of the first die 300 is an isosceles trapezoid with the upper base at the bottom, so that after the first die 300 and the second die 400 are molded together, the corners of the formed carbon-carbon guard plate are thickened to improve the production quality of the carbon-carbon guard plate and facilitate product demoulding.

[0049] In order to optimize the above technical solution, the punch 100 includes a top plate 101, a convex plate 102 and a connecting plate 103. When the carbon-carbon guard plate forming mold forms the carbon-carbon guard plate, the top plate 101 is used to cover the second die 400. The convex plate 102 and the upper surface of the first die 300 form a third space for forming the bottom plate 602 of the carbon-carbon guard plate. The first end of the connecting plate 103 is connected to the top plate 101, and the second end thereof is connected to the convex plate 102. Specifically, the carbon-carbon guard plate includes an annular bottom plate 602, an outer edge 600 and an inner edge 601. The middle part of the annular bottom plate 602 is a through hole, and the diameter of the through hole is the diameter of the mold core 500. The height of the connecting plate 103 is adapted to the thickness of the annular bottom plate 602, so that when the press presses the punch 100 to the preset position, the distance between the convex plate 102 and the upper surface of the first die 300 is the preset thickness of the annular bottom plate 602. Specifically, the number of the connecting plates 103 is one or more, and the preferred number of the connecting plates 103 in the present invention is six, and all of them are welded to the top plate 101 and the convex plate 102. Such an arrangement makes the space between the top plate 101 and the convex plate 102 a cavity, thereby reducing the weight of the male mold 100, that is, reducing the total weight of the carbon-carbon guard plate forming mold, thereby facilitating the transfer of the carbon-carbon guard plate forming mold.

[0050] In order to optimize the above technical solution, a plurality of lifting rings 202 are arranged on the upper surface of the base 200, and the lifting rings 202 are welded to the base 200. Specifically, the lifting rings 202 are used to transfer the carbon-carbon guard plate forming mold, so the plurality of lifting rings 202 are evenly distributed on the upper surface of the base 200, so that the carbon-carbon guard plate forming mold remains stable during the process of transferring the carbon-carbon guard plate forming mold.

[0051] In order to optimize the above technical solution, the slot is annular or circular. Specifically, the mold core 500 is a hollow cylindrical or cylindrical shape. When the mold core 500 is a hollow cylindrical shape, the slot is annular or circular. When the mold core 500 is a cylindrical shape, the slot is circular. The utility model preferably uses the mold core 500 as a hollow cylindrical shape to further reduce the total weight of the carbon-carbon guard plate forming mold, thereby facilitating the transfer of the carbon-carbon guard plate forming mold.

[0052] It should be noted that the precision control of the pressing of carbon-carbon panels in the prior art does not meet the requirements of refinement. The reason is that during the pressing process, the preform needs to be dipped in glue and wrapped with release paper before being placed on a pressing plate for pressing. Due to the low degree of automation of the existing process and the large number of human intervention processes, the thickness deviation of the product is large. After the product is pressed, it needs to be carbonized at 800°C. During the carbonization process, the product will become thinner due to the volatilization of volatiles. The thicker the product, the greater the degree of thickness reduction. This product is a product with a relatively large thickness in the industry. Therefore, the prior art for manufacturing carbon-carbon guard plates requires a large amount of raw materials to be put into use so that the formed preform can ensure the volatilization and removal of raw materials in the subsequent carbonization and machining processes. The carbon-carbon guard plate forming mold provided by the utility model eliminates the step of making the preform, and the materials required for manufacturing the carbon-carbon guard plate are greatly reduced, thereby significantly improving the material utilization rate for manufacturing the carbon-carbon guard plate.

[0053] The process route for manufacturing carbon-carbon guard plates using the utility model is: carbon fiber raw wire → short-cut short-cut wires with 30mm to 50mm → pre-impregnating the short-cut wires with phenolic resin → loading the pre-impregnated short-cut wires into a carbon-carbon guard plate forming mold → hot pressing and curing → 800℃ carbonization → densification → machine processing of finished products (height 60mm) → 2400℃ high-temperature purification.

[0054] The advantages of the utility model are:

[0055] (1) Improve the material utilization rate of carbon-carbon guard plates;

[0056] (2) The time required to manufacture carbon-carbon guard plates is shortened;

[0057] (3) The structure is stable and practical.

[0058] It should be noted that the carbon-carbon guard plate forming mold provided by the utility model can be used in the field of carbon-carbon guard plate manufacturing technology or other fields. Other fields are any fields other than the field of carbon-carbon guard plate manufacturing technology. The above is only an example and does not limit the application field of the carbon-carbon guard plate forming mold provided by the utility model.

[0059] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0060] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A carbon-carbon guard plate forming mold, characterized in that: Used for forming a carbon-carbon guard plate, comprising a male die, a base, a first female die, a second female die and a mold core, wherein: The base is provided with a first annular groove, and the second die is annular, and its circumference is clamped to the inside of the first annular groove and sleeved to the outside of the first die; The mold core is cylindrical and arranged in the middle of the base, and the height of the mold core is greater than the height of the first concave mold; The first die is annular and arranged on the base, and a first space for molding the outer edge of the carbon-carbon guard plate is formed between its outer wall and the outer wall of the second die, and a second space for molding the inner edge of the carbon-carbon guard plate is formed between its inner wall and the outer wall of the mold core; The punch is annular. When the carbon-carbon guard plate forming mold forms the carbon-carbon guard plate, the inner ring of the punch abuts against the mold core, and its outer ring abuts against the inner wall of the second die. A third space for forming the bottom plate of the carbon-carbon guard plate is formed between the bottom of the punch and the upper surface of the first die.

2. The carbon-carbon guard plate forming mold according to claim 1, characterized in that: The base is further provided with a second annular groove and a clamping groove, wherein the second annular groove is used for clamping the first concave mold, and the clamping groove is used for clamping the mold core.

3. The carbon-carbon guard plate forming mold according to claim 1, characterized in that: The first female mold includes four splicing modules, and the four splicing modules are spliced ​​to form an annular female mold. The interior of the splicing module is hollow.

4. The carbon-carbon guard plate forming mold according to claim 1, characterized in that: The second die comprises a first assembly module, a second assembly module and a fixing assembly. The first assembly module and the second assembly module are combined to form an annular die. The fixing assembly is used to connect the first assembly module and the second assembly module.

5. The carbon-carbon guard plate forming mold according to claim 4, characterized in that: The number of the fixing components is two or more.

6. The carbon-carbon guard plate forming mold according to claim 4, characterized in that: The fixing assembly includes a first fixing block, a second fixing block and a fixing pin, the first fixing block is fixed to the outer wall of the first combination module, the second fixing block is fixed to the outer wall of the second combination module, and a fixing hole for the fixing pin to pass through is opened in the middle of the first fixing block and the second fixing block.

7. The carbon-carbon guard plate forming mold according to claim 1, characterized in that: The first die is in the shape of an annular truncated cone.

8. The carbon-carbon guard plate forming mold according to claim 3, characterized in that: The male mold includes a top plate, a convex plate and a connecting plate. When the carbon-carbon guard plate forming mold forms the carbon-carbon guard plate, the top plate is used to cover the second female mold. A third space for forming the bottom plate of the carbon-carbon guard plate is formed between the convex plate and the upper surface of the first female mold. The first end of the connecting plate is connected to the top plate, and the second end thereof is connected to the convex plate.

9. The carbon-carbon guard plate forming mold according to claim 1, characterized in that: A plurality of hanging rings are arranged on the upper surface of the base, and the hanging rings are welded to the base.

10. The carbon-carbon guard plate forming mold according to claim 2, characterized in that: The slot is annular or circular.