Alloy complex capable of improving heat dissipation performance

Abstract

The utility model discloses an alloy complex capable of improving heat dissipation performance. The alloy complex comprises an inner layer, a heat dissipation layer and an outer layer, the inner layer is a metal material layer or an alloy material layer which is easy to process; the heat dissipation layer comprises a heat dissipation net and filling powder filled in the heat dissipation net; the outer layer is a high temperature resistant metal material layer or a high temperature resistant alloy material layer; the heat dissipation layer is used for absorbing and transferring heat generated by the outer layer in the forming process of the alloy composite and reducing deformation of the outer layer. The alloy complex disclosed by the utility model can be widely applied to electronic equipment, aerospace equipment, power equipment, precision equipment or anti-radiation equipment, and when related products are processed by taking the alloy complex as a base material, the processed products are not only good in heat dissipation performance, but also high in strength, light in weight and strong in corrosion resistance and radiation resistance; and the use requirements of products can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of material forming, in particular to an alloy composite body capable of improving heat dissipation performance. Background Art

[0002] Titanium alloy is an alloy composed of titanium as the base material and other alloying elements. It has the advantages of low density (light weight), high specific strength, good corrosion resistance, high heat resistance, and good process performance. Based on the above advantages, many high-precision equipment such as aerospace equipment, electronic equipment, and electrical equipment are made of titanium alloy materials. In the frame or structure of high-precision equipment such as aerospace equipment, electronic equipment, and electrical equipment, many mechanisms and electronic components are usually installed. Therefore, many mounting holes, mounting grooves, and other mounting and positioning structures for the installation and positioning of mechanisms and electronic components are usually set on the surface or back of the titanium alloy frame or structure. However, due to the poor ductility and high hardness of titanium alloy, titanium alloy processing is difficult, the processing technology is complex, and the processing cost is high.

[0003] Take mobile phones as an example. As smart phones gradually become larger, thinner, and more multifunctional, the size of mainstream screens continues to grow. Larger screens require higher-strength materials to support them, and therefore require larger mobile phone middle frames. The existing processing methods generally use a whole piece of metal sheet or metal profile for CNC processing. Due to the limitations of processing methods and materials, CNC processing takes a long time, has high production costs, and has poor mass production. In addition, the existing CNC processing methods are prone to breakage due to the high hardness of the material, poor heat dissipation and ductility. It can be seen that the mobile phone middle frame made of titanium and titanium alloy materials is not only inconvenient to process, but also because the thermal conductivity of titanium alloy is low, it is easy to heat up during use, resulting in poor heat dissipation.

[0004] After searching, the publication number is CN110401757A, which discloses a metal mobile phone back cover that can improve the heat dissipation performance, and the publication number is CN110804735A, which discloses a heat-conducting radiation heat dissipation composite coating suitable for titanium alloy. It can be seen from the two retrieved patent documents that they solve the problem of poor heat dissipation performance from different angles. Due to different materials, their thermal expansion coefficients are also different, and the internal stresses generated are also different. During the forming process, deformation phenomena are prone to occur, or during the later use process, stratification occurs at the joints between different layers. At the same time, due to the low thermal conductivity of titanium alloy, electronic products are prone to heat during use, resulting in poor heat dissipation effect. Therefore, it is urgent to develop an alloy composite with good heat dissipation performance, which can not only solve the problem that the existing high-strength metal materials are prone to tool damage during processing, resulting in high processing costs, but also improve the problems of unstable product quality and poor heat dissipation performance, and can also reduce its weight, convenient to carry and use, and use the alloy composite, and can also meet the use needs of high-precision equipment such as electronic equipment, aerospace equipment, power equipment, precision equipment or radiation-resistant equipment. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide an alloy composite with excellent performance. When the alloy composite is used to process related products, it has the advantages of stable processing technology, high production efficiency, short processing time and low processing cost, and makes the processed products light in weight and good in heat dissipation effect. At the same time, a preparation method and application of the alloy composite are also provided, specifically, an alloy composite that can improve heat dissipation performance.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: an alloy composite body capable of improving heat dissipation performance, the alloy composite body comprising an inner layer, a heat dissipation layer and an outer layer; the inner layer is a metal material layer or an alloy material layer that is easy to process; the heat dissipation layer comprises a heat dissipation net and a filling powder filled in the heat dissipation net; the outer layer is a high-temperature resistant metal material layer or a high-temperature resistant alloy material layer; the heat dissipation layer is used to absorb and transfer the heat generated by the outer layer of the alloy composite body during the forming process, and to reduce the deformation of the outer layer.

[0007] Furthermore, an alloy composite body capable of improving heat dissipation performance as described in the utility model is adopted, wherein the heat dissipation layer comprises an inner heat dissipation layer, an intermediate heat dissipation layer and an outer heat dissipation layer; wherein the inner heat dissipation layer is an alloy layer formed by hot pressing and melting the filling powder and the inner layer; the intermediate heat dissipation layer is formed by hot pressing and melting the heat dissipation net and the filling powder filled in the heat dissipation net, the inner heat dissipation layer and the outer heat dissipation layer; and the outer heat dissipation layer is an alloy layer formed by hot pressing and melting the filling powder and the outer layer.

[0008] Furthermore, an alloy composite body capable of improving heat dissipation performance as described in the utility model is adopted, and the inner layer is made of any one or more of titanium or titanium alloy material, zirconium or zirconium alloy material, aluminum and its alloys, copper and its alloys, silver and its alloys, tin and its alloys, nickel and its alloys, niobium and its alloys, vanadium and its alloys, titanium-aluminum composite materials or zirconium-aluminum composite materials.

[0009] Furthermore, an alloy composite capable of improving heat dissipation performance as described in the utility model is adopted, and the inner layer is made of any one of titanium alloy material, zirconium alloy material, titanium aluminum composite material or zirconium aluminum composite material, wherein the zirconium alloy material is any one of Zr-2 alloy, Zr-4 alloy or Zr-2.5Nb alloy.

[0010] Furthermore, an alloy composite capable of improving heat dissipation performance as described in the utility model is adopted, and the heat dissipation mesh in the heat dissipation layer adopts a metal mesh or a glass fiber mesh, wherein the metal mesh adopts any one of a titanium alloy mesh, a zirconium alloy mesh, a nickel-based alloy mesh, a molybdenum alloy mesh, a niobium alloy mesh, a tantalum alloy mesh, a copper alloy mesh or a stainless steel mesh, and a plurality of evenly spaced filling micropores are provided in the heat dissipation mesh, and the filling powder is a metal material or an alloy material that is easy to dissipate heat.

[0011] Furthermore, an alloy composite capable of improving heat dissipation performance as described in the utility model is adopted, and the filling micropores in the heat dissipation net are circular, square, elliptical or waist-shaped structures; and the filling powder is any one of diamond powder, titanium alloy and diamond mixed powder, silicon carbide powder, titanium zirconium powder, copper powder or aluminum powder.

[0012] Furthermore, in the alloy composite capable of improving heat dissipation performance described in the utility model, the thickness of the metal mesh is 0.2-10 mm; and the particle size of the filling powder is controlled within 200 μm.

[0013] Furthermore, the alloy composite body capable of improving heat dissipation performance described in the utility model is adopted, and the outer layer is made of titanium or titanium alloy material.

[0014] Furthermore, the alloy composite body capable of improving heat dissipation performance described in the utility model is adopted, wherein the outer layer is made of a titanium alloy material, and the titanium alloy material is any one of Ti3Al alloy, Ti2AlNb alloy, Ti6Al4V alloy or a titanium alloy composite material.

[0015] Furthermore, in the alloy composite body capable of improving heat dissipation performance described in the utility model, the thickness of the inner layer is 3 to 20 mm, the thickness of the heat dissipation layer is 0.2 to 10 mm, and the thickness of the outer layer is 0.2 to 10 mm.

[0016] Compared with the prior art, the alloy composite body for improving heat dissipation performance of the utility model has the following beneficial effects:

[0017] (1) The alloy composite body of the utility model is provided with a heat dissipation layer between the inner layer and the outer layer, and is formed into one piece by hot pressing. The heat dissipation layer can not only eliminate the internal stress between the inner layer and the outer layer, but also reduce the overall weight;

[0018] (2) The alloy composite of the present invention is formed in one piece by hot pressing, and the filling powder filled in the metal mesh is used to absorb and transfer the heat generated by the outer layer of the alloy composite during the forming process to prevent the outer layer from deforming;

[0019] (3) The alloy composite body of the utility model has good heat dissipation performance because the filling powder is made of metal material or alloy material that is easy to dissipate heat.

[0020] In summary, the alloy composite of the utility model can be widely used in electronic equipment, aerospace equipment, power equipment, precision equipment or radiation-resistant equipment. When the alloy composite is used as the substrate for processing related products, it has the advantages of stable processing technology, high production efficiency, short processing time and low production cost. The processed products not only have good heat dissipation performance, but also have high strength, light weight, strong corrosion resistance and radiation resistance, and can meet the use requirements of the products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the heat dissipation net in the utility model. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the structure of the heat dissipation net in the utility model. Figure 2 .

[0025] As shown in the figure: 1-inner layer, 2-heat dissipation layer, 21-inner heat dissipation layer, 22-middle heat dissipation layer, 23-outer heat dissipation layer, 3-outer layer. DETAILED DESCRIPTION

[0026] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0027] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", etc. quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "provided with" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] It should be noted that the term "comprise" or any other variation is intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus. Example 1

[0030] like Figure 1 and Figure 2 As shown, this embodiment provides an alloy composite body that can improve heat dissipation performance, the alloy composite body includes an inner layer 1, a heat dissipation layer 2 and an outer layer 3; the inner layer 1 is a metal material layer or an alloy material layer that is easy to process; the heat dissipation layer 2 includes a heat dissipation net and a filling powder filled in the heat dissipation net; the outer layer 3 is a high temperature resistant metal material layer or a high temperature resistant alloy material layer; the heat dissipation layer 2 is used to absorb and transfer the heat generated by the outer layer 3 during the forming process of the alloy composite body, and reduce the deformation of the outer layer 3. Among them, the heat dissipation layer 2 includes an inner heat dissipation layer 21, an intermediate heat dissipation layer 22 and an outer heat dissipation layer 23; the inner heat dissipation layer 21 is an alloy layer formed by hot pressing and melting the filling powder and the inner layer 1; the intermediate heat dissipation layer 22 is formed by hot pressing and melting the heat dissipation net and the filling powder filled in the heat dissipation net, the inner heat dissipation layer 21 and the outer heat dissipation layer 23; and the outer heat dissipation layer 23 is an alloy layer formed by hot pressing and melting the filling powder and the outer layer 3.

[0031] The heat dissipation layer 2 is divided into an inner heat dissipation layer 21, an intermediate heat dissipation layer 22 and an outer heat dissipation layer 23. This is not an interlayer structure with very clear boundaries, but is only used to describe an asymptotic process of the alloy formed by melting when the transition layer is close to different positions between the corresponding layers. Since the raw materials used for the inner layer 1 and the outer layer 3 are different, their thermal expansion coefficients are different. The purpose of adding the transition material is to absorb and transfer the heat generated by the outer layer 3 during the forming process of the alloy composite and to reduce the deformation of the outer layer 3.

[0032] In this embodiment, the outer layer 3 is Ti3Al alloy, the inner layer 1 is Zr-2 alloy, the heat dissipation mesh is a metal mesh, and a titanium alloy mesh with a thickness of 0.2 mm is adopted. The filling micropores in the metal mesh are waist-shaped structures. The transition material is selected as diamond powder, and the particle size of the diamond powder is controlled within 200 μm.

[0033] The preparation method of the alloy composite specifically comprises the following steps:

[0034] (1) First, the metal sheath is designed according to the shape and structure of the alloy composite to be prepared, and the outer dimensions of the metal sheath are required to be 0.5 to 3 mm larger than the dimensions of the workpiece;

[0035] (2) Select the processed inner layer 1, outer layer 3 and metal mesh;

[0036] (3) firstly placing the inner layer 1 in the metal sheath, then placing the metal mesh on the inner layer 1, and at the same time, pouring the filling powder on the metal mesh, and finally placing the outer layer 3 on the filling powder in the metal mesh, and sealing the metal sheath; in the process of placing the inner layer 1, a release agent is provided in advance in the metal sheath;

[0037] (4) The sealed metal sheath is heated and vacuumized during the heating process. The specific vacuum degassing process parameters are: degassing temperature is 250°C, vacuum degree is 1X10 -1 Pa, the degassing time is 5 hours;

[0038] (5) placing the vacuum-treated metal sheath in a hot pressing device for hot pressing treatment, so that the filling powder on the metal mesh is hot-pressed and fused with the inner layer 1 and the outer layer 3 into one; the hot pressing treatment is hot isostatic pressing treatment, and the vacuum-treated metal sheath is placed in a hot isostatic pressing machine for hot isostatic pressing treatment. The specific hot isostatic pressing process parameters are: hot isostatic pressing temperature of 700° C., pressure of 100 MPa, and heat preservation and pressure holding time of 3 to 5 hours;

[0039] (6) The metal sheath after the hot pressing treatment is taken out from the hot pressing equipment, cooled to room temperature, and then the metal sheath is removed to obtain an alloy composite of the desired shape and size. Example 2

[0040] This embodiment provides an alloy composite body that can improve heat dissipation performance, the alloy composite body includes an inner layer 1, a heat dissipation layer 2 and an outer layer 3; the inner layer 1 is a metal material layer or an alloy material layer that is easy to process; the heat dissipation layer 2 includes a heat dissipation net and a filling powder filled in the heat dissipation net; the outer layer 3 is a high temperature resistant metal material layer or a high temperature resistant alloy material layer; the heat dissipation layer 2 is used to absorb and transfer the heat generated by the outer layer 3 during the forming process of the alloy composite body, and reduce the deformation of the outer layer 3. Among them, the heat dissipation layer 2 includes an inner heat dissipation layer 21, an intermediate heat dissipation layer 22 and an outer heat dissipation layer 23; the inner heat dissipation layer 21 is an alloy layer formed by hot pressing and melting the filling powder and the inner layer 1; the intermediate heat dissipation layer 22 is formed by hot pressing and melting the heat dissipation net and the filling powder filled in the heat dissipation net, the inner heat dissipation layer 21 and the outer heat dissipation layer 23; and the outer heat dissipation layer 23 is an alloy layer formed by hot pressing and melting the filling powder and the outer layer 3.

[0041] The heat dissipation layer 2 is divided into an inner heat dissipation layer 21, an intermediate heat dissipation layer 22 and an outer heat dissipation layer 23. This is not an interlayer structure with very clear boundaries, but is only used to describe an asymptotic process of the alloy formed by melting when the transition layer is close to different positions between the corresponding layers. Since the raw materials used for the inner layer 1 and the outer layer 3 are different, their thermal expansion coefficients are different. The purpose of adding the transition material is to absorb and transfer the heat generated by the outer layer 3 during the forming process of the alloy composite and to reduce the deformation of the outer layer 3.

[0042] The outer layer 3, inner layer 1, heat dissipation net and transition material of this embodiment are the same as those of embodiment 1.

[0043] The preparation method of the alloy composite described in this embodiment is basically the same as that of Example 1, except that during the hot pressing process, the hot pressing process is an electromagnetic induction heating process, and the electromagnetic induction heating process is to place the metal sheath after vacuum treatment in an electromagnetic induction heater for electromagnetic induction heating treatment. During the electromagnetic induction heating and pressurizing process, the specific heating and pressurizing process parameters are: heating temperature is 700°C, pressure is 120MPa, and heat preservation and pressure holding time is 1 to 4 hours. Example 3

[0044] This embodiment provides an alloy composite body that can improve heat dissipation performance, the alloy composite body includes an inner layer 1, a heat dissipation layer 2 and an outer layer 3; the inner layer 1 is a metal material layer or an alloy material layer that is easy to process; the heat dissipation layer 2 includes a heat dissipation net and a filling powder filled in the heat dissipation net; the outer layer 3 is a high temperature resistant metal material layer or a high temperature resistant alloy material layer; the heat dissipation layer 2 is used to absorb and transfer the heat generated by the outer layer 3 during the forming process of the alloy composite body, and reduce the deformation of the outer layer 3. Among them, the heat dissipation layer 2 includes an inner heat dissipation layer 21, an intermediate heat dissipation layer 22 and an outer heat dissipation layer 23; the inner heat dissipation layer 21 is an alloy layer formed by hot pressing and melting the filling powder and the inner layer 1; the intermediate heat dissipation layer 22 is formed by hot pressing and melting the heat dissipation net and the filling powder filled in the heat dissipation net, the inner heat dissipation layer 21 and the outer heat dissipation layer 23; and the outer heat dissipation layer 23 is an alloy layer formed by hot pressing and melting the filling powder and the outer layer 3.

[0045] The heat dissipation layer 2 is divided into an inner heat dissipation layer 21, an intermediate heat dissipation layer 22 and an outer heat dissipation layer 23. This is not an interlayer structure with very clear boundaries, but is only used to describe an asymptotic process of the alloy formed by melting when the transition layer is close to different positions between the corresponding layers. Since the raw materials used for the inner layer 1 and the outer layer 3 are different, their thermal expansion coefficients are different. The purpose of adding the transition material is to absorb and transfer the heat generated by the outer layer 3 during the forming process of the alloy composite and to reduce the deformation of the outer layer 3.

[0046] The outer layer 3, inner layer 1, heat dissipation net and transition material of this embodiment are the same as those of embodiment 1.

[0047] The preparation method of the alloy composite described in this embodiment is basically the same as that of Example 1, except that during the hot pressing process, the hot pressing process is forging process, and the forging process is to place the vacuum-treated metal sheath in a forging furnace for heating treatment. During the forging process, the specific operation method is: forging process is performed under the condition of a heating temperature of 600°C. Example 4

[0048] like Figure 1 and Figure 3As shown, this embodiment provides an alloy composite body capable of improving heat dissipation performance, the alloy composite body comprising an inner layer 1, a heat dissipation layer 2 and an outer layer 3; the inner layer 1 is a metal material layer or an alloy material layer that is easy to process; the heat dissipation layer 2 comprises a heat dissipation net and a filling powder filled in the heat dissipation net; the outer layer 3 is a high temperature resistant metal material layer or a high temperature resistant alloy material layer; the heat dissipation layer 2 is used to absorb and transfer the heat generated by the outer layer 3 during the forming process of the alloy composite body, and to reduce the deformation of the outer layer 3. Among them, the heat dissipation layer 2 comprises an inner heat dissipation layer 21, an intermediate heat dissipation layer 22 and an outer heat dissipation layer 23; the inner heat dissipation layer 21 is an alloy layer formed by hot pressing and melting the filling powder and the inner layer 1; the intermediate heat dissipation layer 22 is formed by hot pressing and melting the heat dissipation net and the filling powder filled in the heat dissipation net, the inner heat dissipation layer 21 and the outer heat dissipation layer 23; and the outer heat dissipation layer 23 is an alloy layer formed by hot pressing and melting the filling powder and the outer layer 3.

[0049] The heat dissipation layer 2 is divided into an inner heat dissipation layer 21, an intermediate heat dissipation layer 22 and an outer heat dissipation layer 23. This is not an interlayer structure with very clear boundaries, but is only used to describe an asymptotic process of the alloy formed by melting when the transition layer is close to different positions between the corresponding layers. Since the raw materials used for the inner layer 1 and the outer layer 3 are different, their thermal expansion coefficients are different. The purpose of adding the transition material is to absorb and transfer the heat generated by the outer layer 3 during the forming process of the alloy composite and to reduce the deformation of the outer layer 3.

[0050] In this embodiment, the outer layer 3 is Ti2AlNb alloy, the inner layer 1 is Zr-4 alloy, the heat dissipation mesh is a metal mesh, the metal mesh is a nickel-based alloy mesh with a thickness of 5 mm, the filling micropores in the metal mesh are circular structures, and the transition material is selected as silicon carbide powder, and the particle size of the silicon carbide powder is controlled within 200μm.

[0051] The preparation method of the alloy composite described in this embodiment is basically the same as that in embodiment 1, except for two aspects. First, during the vacuum treatment process, the specific vacuum degassing process parameters are: the degassing temperature is 450°C, the vacuum degree is 1×10 -3 The degassing time is 20 hours; the second is hot isostatic pressing treatment, and the specific hot isostatic pressing process parameters are: hot isostatic pressing temperature is 1250°C, pressure is 150MPa, and insulation and pressure holding time is 3 to 5 hours. Example 5

[0052] The difference between this embodiment and embodiment 4 is that the outer layer 3 is a titanium alloy composite material, the inner layer 1 is a titanium aluminum composite material, the heat dissipation mesh is a metal mesh, the metal mesh is a copper alloy mesh with a thickness of 8 mm, the filling micropores in the metal mesh are a square structure, the transition material is copper powder, and the particle size of the copper powder is controlled within 200 μm.

[0053] The preparation method of the alloy composite described in this embodiment is basically the same as that of Example 2, except that during the hot pressing process, the hot pressing process is an electromagnetic induction heating process, and the electromagnetic induction heating process is to place the vacuum-treated metal sheath in an electromagnetic induction heater for electromagnetic induction heating. During the electromagnetic induction heating and pressurizing process, the specific heating and pressurizing process parameters are: heating temperature is 700° C., pressure is 100 MPa, and heat preservation and pressure holding time is 1 to 4 hours. Example 6

[0054] The difference between this embodiment and embodiment 4 is that: the outer layer 3 is a titanium alloy composite material, the inner layer 1 is a zirconium aluminum composite material, the heat dissipation mesh is a metal mesh, the metal mesh is a titanium alloy mesh with a thickness of 8 mm, the filling micropores in the metal mesh are an elliptical structure, and the transition material is a titanium alloy and diamond mixed powder, the titanium alloy and diamond mixed powder are mixed in a 1:1 ratio by weight, and the particle size is controlled within 200μm.

[0055] The preparation method of the alloy composite described in this embodiment is basically the same as that of Embodiment 3. During the forging process, the specific operation mode is: forging is performed under the condition of a heating temperature of 800°C. Example 7

[0056] This embodiment provides an alloy composite body capable of improving heat dissipation performance, the alloy composite body comprising an inner layer 1, a heat dissipation layer 2 and an outer layer 3; the inner layer 1 is a metal material layer or an alloy material layer that is easy to process; the heat dissipation layer 2 comprises a heat dissipation net and a filling powder filled in the heat dissipation net; the outer layer 3 is a high temperature resistant metal material layer or a high temperature resistant alloy material layer; the heat dissipation layer 2 is used to absorb and transfer the heat generated by the outer layer 3 during the forming process of the alloy composite body, and to reduce the deformation of the outer layer 3. Among them, the heat dissipation layer 2 comprises an inner heat dissipation layer 21, an intermediate heat dissipation layer 22 and an outer heat dissipation layer 23; the inner heat dissipation layer 21 is an alloy layer formed by hot pressing and melting the filling powder and the inner layer 1; the intermediate heat dissipation layer 22 is formed by hot pressing and melting the heat dissipation net and the filling powder filled in the heat dissipation net, the inner heat dissipation layer 21 and the outer heat dissipation layer 23; and the outer heat dissipation layer 23 is an alloy layer formed by hot pressing and melting the filling powder and the outer layer 3.

[0057] The heat dissipation layer 2 is divided into an inner heat dissipation layer 21, an intermediate heat dissipation layer 22 and an outer heat dissipation layer 23. This is not an interlayer structure with very clear boundaries, but is only used to describe an asymptotic process of the alloy formed by melting when the transition layer is close to different positions between the corresponding layers. Since the raw materials used for the inner layer 1 and the outer layer 3 are different, their thermal expansion coefficients are different. The purpose of adding the transition material is to absorb and transfer the heat generated by the outer layer 3 during the forming process of the alloy composite and to reduce the deformation of the outer layer 3.

[0058] In this embodiment, the outer layer 3 is Ti6Al4V alloy, the inner layer 1 is Zr-2.5Nb alloy, the heat dissipation mesh is a metal mesh, the metal mesh is a stainless steel mesh with a thickness of 10 mm, the filling micropores in the metal mesh are circular structures, and the transition material is titanium-zirconium powder, and the particle size of the titanium-zirconium powder is controlled within 200 μm.

[0059] The preparation method of the alloy composite described in this embodiment is basically the same as that in embodiment 1, except for two aspects. First, during the vacuum treatment process, the specific vacuum degassing process parameters are: the degassing temperature is 650°C, the vacuum degree is 1×10 -4 The degassing time is 25 hours. The specific hot isostatic pressing process parameters are as follows: the hot isostatic pressing temperature is 1350°C, the pressure is 200MPa, and the heat preservation and pressure holding time is 3 to 5 hours. Example 8

[0060] The difference between this embodiment and embodiment 7 is that: the outer layer 3 in this embodiment is Ti3Al alloy, the inner layer 1 is a zirconium-aluminum composite material, the heat dissipation mesh is a metal mesh, the metal mesh is a zirconium alloy mesh with a thickness of 10 mm, the filling micropores in the metal mesh are an elliptical structure, the transition material is aluminum powder, and the particle size of the aluminum powder is controlled within 200μm.

[0061] The preparation method of the alloy composite described in this embodiment is basically the same as that of Example 2, except that during the hot pressing process, the hot pressing process is an electromagnetic induction heating process, and the electromagnetic induction heating process is to place the metal sheath after vacuum treatment in an electromagnetic induction heater for electromagnetic induction heating treatment. During the electromagnetic induction heating and pressurizing process, the specific heating and pressurizing process parameters are: heating temperature is 950° C., pressure is 150 MPa, and heat preservation and pressure holding time is 1 to 4 hours. Example 9

[0062] The difference between this embodiment and embodiment 7 is that: the outer layer 3 in this embodiment is Ti2AlNb alloy, the inner layer 1 is zirconium-aluminum composite material, the heat dissipation mesh is a metal mesh, the metal mesh is a titanium alloy mesh with a thickness of 10 mm, the filling micropores in the metal mesh are waist-shaped structures, the transition material is titanium-zirconium powder, and the particle size of the titanium-zirconium powder is controlled within 200μm.

[0063] The preparation method of the alloy composite described in this embodiment is basically the same as that of Embodiment 3, except that during the forging process, the specific operation mode is: forging is performed under the condition of a heating temperature of 1200°C.

[0064] The alloy composite prepared by the method described in Examples 1 to 9 was subjected to destructive analysis. Since a heat dissipation layer 2 was added between the inner layer 1 and the outer layer 3, and a heat dissipation net was provided in the heat dissipation layer 2, the heat dissipation layer 2 formed an inner heat dissipation layer 21, an intermediate heat dissipation layer 22 and an outer heat dissipation layer 23 through the heat dissipation net, and the heat dissipation layer 2 was used to absorb and transfer the heat generated by the outer layer 3 of the alloy composite during the forming process, and to reduce the deformation of the outer layer 3, and finally formed an integrated structure, the inner layer 1 and the outer layer 3 were combined into one through the heat dissipation net, and the powder filled in the heat dissipation net was used to be integrated through hot pressing, which not only played a role in heat dissipation, but also played a role in connection and support. Through the bending and extrusion test, no separation and delamination occurred in the middle joint.

[0065] Other details of the present invention are all conventional techniques known to those skilled in the art.

[0066] The protection scope of the utility model is not limited to the technical solutions disclosed in the specific implementation methods. The above description is only a preferred implementation method of the utility model and does not limit the utility model. Any minor modifications, equivalent substitutions and improvements made based on the technical solutions of the utility model should be included in the protection scope of the technical solutions of the utility model.

Claims

1. An alloy composite capable of improving heat dissipation performance, characterized in that: The alloy composite comprises an inner layer, a heat dissipation layer and an outer layer; the inner layer is a metal material layer or an alloy material layer that is easy to process; the heat dissipation layer comprises a heat dissipation net and a filling powder filled in the heat dissipation net; the outer layer is a high-temperature resistant metal material layer or a high-temperature resistant alloy material layer; the heat dissipation layer is used to absorb and transfer the heat generated by the outer layer of the alloy composite during the forming process and reduce the deformation of the outer layer.

2. The alloy composite capable of improving heat dissipation performance according to claim 1, characterized in that: The inner layer is made of any one of titanium alloy material, zirconium alloy material, titanium aluminum composite material or zirconium aluminum composite material, wherein the zirconium alloy material is any one of Zr-2 alloy, Zr-4 alloy or Zr-2.5Nb alloy.

3. The alloy composite capable of improving heat dissipation performance according to claim 1, characterized in that: The heat dissipation mesh in the heat dissipation layer is made of metal mesh or glass fiber mesh, wherein the metal mesh is any one of titanium alloy mesh, zirconium alloy mesh, nickel-based alloy mesh, molybdenum alloy mesh, niobium alloy mesh, tantalum alloy mesh, copper alloy mesh or stainless steel mesh, and a plurality of evenly spaced filling micropores are provided in the heat dissipation mesh, and the filling powder is a metal material or alloy material that is easy to dissipate heat.

4. The alloy composite capable of improving heat dissipation performance according to claim 3, characterized in that: The filling micropores in the heat dissipation net are circular, square, elliptical or waist-shaped structures; and the filling powder is any one of diamond powder, titanium alloy and diamond mixed powder, silicon carbide powder, titanium zirconium powder, copper powder or aluminum powder.

5. The alloy composite capable of improving heat dissipation performance according to claim 3, characterized in that: The thickness of the metal mesh is 0.2-10 mm; and the particle size of the filling powder is controlled within 200 μm.

6. The alloy composite capable of improving heat dissipation performance according to claim 1, characterized in that: The outer layer is made of titanium or titanium alloy material.

7. The alloy composite body capable of improving heat dissipation performance according to claim 6, characterized in that: The outer layer is made of a titanium alloy material, and the titanium alloy material is any one of Ti3Al alloy, Ti2AlNb alloy, Ti6Al4V alloy or a titanium alloy composite material.

8. The alloy composite capable of improving heat dissipation performance according to claim 1, characterized in that: The thickness of the inner layer is 3-20 mm, the thickness of the heat dissipation layer is 0.2-10 mm, and the thickness of the outer layer is 0.2-10 mm.

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