High strength, easily machined graphite structure

Abstract

The utility model relates to a kind of high-strength graphite structure of easy processing, including graphite block ontology, metal wire or metal nail is penetrated in the graphite block ontology, metal wire or metal nail parallel to each other is array distribution in graphite block ontology. At least two array distribution metal wires or metal nails exist in the graphite block ontology, metal wire or metal nail in two arrays is perpendicular to each other. Metal wire or metal nail is one or several of copper, nickel, tungsten, molybdenum, titanium, stainless steel and metal alloy, the graphite block ontology has plating. The utility model improves the strength and processing performance of graphite block ontology, is conducive to the processing production of graphite block ontology for various products.

Description

Technical Field

[0001] This utility model belongs to the field of graphite technology, specifically relating to a high-strength, easily machinable graphite structure. Background Technology

[0002] Graphite, due to its excellent thermal conductivity, lightweight, and chemical stability, has become an indispensable key thermal conductive material in fields such as heat dissipation for electronic devices and thermal management of new energy sources. While existing graphite structures with excellent heat dissipation meet the heat dissipation requirements of various products, different products have varying strength requirements for graphite and higher demands on its processing performance. Ordinary high-heat-dissipation graphite still has significant shortcomings in this regard, making it difficult to adapt to the strength and processing performance requirements of various products. Therefore, a high-strength, easily machinable graphite structure is needed to solve the aforementioned technical problems. Summary of the Invention

[0003] To address the aforementioned deficiencies in the existing technology, this utility model provides a high-strength, easily machinable graphite structure, comprising a graphite block body, wherein metal wires or metal nails are threaded through the graphite block body, and the parallel metal wires or metal nails are arranged in an array within the graphite block body.

[0004] Preferably, there are at least two arrays of metal wires or metal nails in the graphite block body, and the metal wires or metal nails in the two arrays are distributed perpendicularly to each other.

[0005] Preferably, the metal wire or metal nail is one or more of the following metals or metal alloys: copper, nickel, tungsten, molybdenum, titanium, and stainless steel.

[0006] Preferably, the area of ​​each of the metal wires or metal nails on the surface of the graphite block body is no more than 20% of the total area of ​​the graphite block body, and the diameter of the metal wires or metal nails is 0.1-2mm.

[0007] Preferably, the graphite block body is a graphite film, graphene, or carbon fiber formed by sintering multiple stacked polymer films, and is formed by carbonization, graphitization, and vacuum calendering.

[0008] Preferably, the polymer film is polyimide, aramid, or POD (aromatic polyoxadiazole).

[0009] Preferably, a catalytic layer is interspersed within the multilayer stacked polymer film, wherein the polymer film is coated with a first coating layer, and the catalytic layer is a polyimide film coated with a second coating layer.

[0010] Preferably, the coating is formed by spraying a dispersion of carbon nanotubes and hexagonal boron nitride.

[0011] Preferably, the second coating is a coating formed by spraying a boron carbide ethanol suspension.

[0012] Preferably, the number of layers in the polymer film is 100-20000.

[0013] Preferably, the graphite block body has a coating, the thickness of which is 5-1000 micrometers, and the coating is an electroplating layer or a chemical plating layer.

[0014] This invention provides a high-strength, easily machinable graphite structure that increases the strength of the graphite block body by inserting metal wires or metal nails into the graphite tube body. This arrangement, in conjunction with the electroplating layer, can further improve the strength and machinability of the graphite block body.

[0015] The beneficial effects of this utility model are: it improves the strength and processing performance of the graphite block body, which is conducive to the use of the graphite block body in the processing and production of various products. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of a high-strength, easily machinable graphite structure in an embodiment of the present invention; Figure 2 for Figure 1 A partial perspective view.

[0018] In the diagram: 1. Base layer; 2. Metal wire / nail. Detailed Implementation

[0019] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0020] Example 1 like Figure 1-2 As shown, this utility model provides a high-strength, easily processed graphite structure, including a graphite block body. The graphite block body has transverse and longitudinal metal wires / nails 3 running through it. The parallel metal wires / nails are arranged in an array within the graphite block body, and the transverse and longitudinal metal wires / nails 3 are interlaced.

[0021] The metal wire / nail 2 is one or more metals or metal alloys such as copper, nickel, tungsten, molybdenum, titanium, and stainless steel.

[0022] The area of ​​each of the metal wires / nail 2 on the surface of the graphite block body accounts for 20% of the total area of ​​the graphite block body, and the diameter of the metal wire / nail 3 is 1mm.

[0023] The graphite block body has a coating, which is one or more of metals and alloys such as copper, nickel, and silver. The coating thickness is 5 micrometers, and the coating is an electroplating layer or a chemical plating layer.

[0024] The high-strength, easily machinable graphite structure in this embodiment has a bending strength of 40 MPa and a Vickers hardness of 400 HV.

[0025] Example 2 like Figure 1-2 As shown, the difference between this embodiment and Embodiment 1 is that the graphite block body is formed by sintering multi-layer stacked polymer films to form a graphite film, graphene, or carbon fiber, and is then carbonized, graphitized, and finally vacuum calendered.

[0026] The polymer film is made of polyimide, aramid, or POD (aromatic polyoxadiazole).

[0027] The polymer film has 10,000 layers.

[0028] The graphite block body has a coating, which is one or more of metals and alloys such as copper, nickel, and silver. The coating thickness is 10 micrometers, and the coating is an electroplating layer or a chemical plating layer.

[0029] The high-strength, easily machinable graphite structure in this embodiment has a flexural strength of 64 MPa and a Vickers hardness of 650 HV.

[0030] Example 3 like Figure 1-2 As shown, the difference between this embodiment and Embodiment 1 is that the thickness of the electroplated layer is 20 micrometers.

[0031] The high-strength, easily machinable graphite structure in this embodiment has a flexural strength of 88 MPa and a Vickers hardness of 900 HV.

[0032] Example 4 like Figure 1-2 As shown, the difference between this embodiment and Embodiment 2 is that a catalytic layer is interspersed within the multilayer stacked polymer film, the polymer film is coated with a first coating, and the catalytic layer is a polyimide film coated with a second coating.

[0033] The first coating is formed by spraying a dispersion of carbon nanotubes and hexagonal boron nitride.

[0034] The second coating is formed by spraying a boron carbide ethanol suspension.

[0035] The thickness of the coating is 20 micrometers.

[0036] The high-strength, easily machinable graphite structure in this embodiment has a flexural strength of 86 MPa and a Vickers hardness of 890 HV.

[0037] Example 5 like Figure 1-2 As shown, the difference between this embodiment and Embodiment 2 is that the thickness of the coating is 1000 micrometers.

[0038] Example 6 like Figure 1-2 As shown, the difference between this embodiment and Embodiment 1 is that the thickness of the coating is 1000 micrometers.

[0039] The high-strength, easily machinable graphite structures prepared in the above embodiments exhibit good performance stability, excellent thermal conductivity, high strength, and superior machinability, demonstrating excellent overall performance. They can meet the strength requirements and high-efficiency processing needs of various products.

[0040] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, improvements, or processing of different shapes based on this graphite block made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-strength, easily machinable graphite structure, characterized in that: It includes a graphite block body, through which metal wires or metal nails are inserted, and the parallel metal wires or metal nails are arranged in an array within the graphite block body. The graphite block contains at least two arrays of metal wires or metal nails, which are arranged in a staggered and perpendicular manner.

2. The high-strength, easily machinable graphite structure according to claim 1, characterized in that: The metal wire or metal nail is one or more of copper, nickel, tungsten, molybdenum, titanium, and stainless steel.

3. The high-strength, easily machinable graphite structure according to claim 1, characterized in that: The area of ​​each of the metal wires or metal nails on the surface of the graphite block body shall not exceed 20% of the total area of ​​the graphite block body, and the diameter of the metal wires or metal nails shall be 0.1-2mm.

4. A high-strength, easily machinable graphite structure according to claim 1, characterized in that: The graphite block body is a multi-layered stacked polymer film, graphene, or carbon fiber.

5. A high-strength, easily machinable graphite structure according to claim 4, characterized in that: The polymer film is a polyimide, aramid, or aromatic polyoxadiazole.

6. A high-strength, easily machinable graphite structure according to claim 5, characterized in that: A catalytic layer is interspersed within a multilayered stacked polymer film. The polymer film is coated with a first coating, and the catalytic layer is a polyimide film coated with a second coating.

7. A high-strength, easily machinable graphite structure according to claim 1, characterized in that: The graphite block body has an electroplated layer on its exterior, and the thickness of the electroplated layer is 5-500 micrometers.

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