A new composite material for aircraft aluminum profile

Abstract

The utility model provides a novel composite material's aviation aluminium alloy, novel composite material's aviation aluminium alloy includes: base layer is located in the middle of aluminium alloy body, one side of base layer is provided with inner layer, middle layer and first outer layer in proper order, the other side of base layer is provided with fibre composite layer, shear layer and second outer layer, first outer layer and second outer layer are aluminium, ceramic particle forms aluminium base ceramic composite layer for improving corrosion resistance and anti - radiation performance, the inner layer is aluminium, graphene composite layer for improving heat conduction and conductivity performance. Novel composite material's aviation aluminium alloy provided by the utility model, through the design makes aluminium alloy have anticorrosion, high strength, heat conduction and conductivity and a variety of functions, satisfy the comprehensive performance demand of aviation equipment under complex environment, the layered structure design can be accurate to adjust each layer material proportion according to the functional demand of different parts, realizes light weight while guaranteeing performance.

Description

Technical Field

[0001] This utility model relates to the field of aviation aluminum profile technology, and in particular to a novel composite material aviation aluminum profile. Background Technology

[0002] Aluminum profiles are alloy materials with aluminum as the main component. Aluminum rods are melted and extruded to obtain aluminum materials with different cross-sectional shapes. However, the mechanical properties and application fields of the industrial aluminum profiles produced are different depending on the proportion of alloys added. Generally speaking, industrial aluminum profiles refer to all aluminum profiles other than those used for building doors and windows, curtain walls, interior and exterior decoration, and building structures.

[0003] Aerospace aluminum profiles are a type of high-strength, lightweight aluminum alloy material with excellent corrosion resistance, thermal conductivity, and processing performance. They are widely used in the manufacture of structural components for aircraft and other aircraft. Aerospace aluminum profiles are characterized by their lightweight, high strength, and corrosion resistance.

[0004] Aluminum profiles for aviation applications need to meet a variety of challenges in different environments. Traditional single composite structures cannot meet these diverse requirements at the same time, resulting in limited performance of the profiles under complex working conditions.

[0005] Therefore, it is necessary to provide a new type of composite material for aerospace aluminum profiles to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a novel composite material for aerospace aluminum profiles, which solves the problem that single composite structure aerospace aluminum profiles cannot meet the performance requirements in different environments.

[0007] To solve the above-mentioned technical problems, the present invention provides a novel composite material for aerospace aluminum profiles, comprising: an aluminum profile body; The base layer is located in the middle of the aluminum profile body. One side of the base layer is provided with an inner layer, an intermediate layer and a first outer layer in sequence. The other side of the base layer is provided with a fiber composite layer, a shear layer and a second outer layer. The first and second outer layers are aluminum-ceramic composite layers formed by aluminum and ceramic particles to improve corrosion resistance and radiation resistance. The inner layer is an aluminum-graphene composite layer to improve thermal and electrical conductivity. The intermediate layer is an aluminum-carbon fiber composite layer to improve strength. The fiber composite layer is an aluminum-glass fiber composite layer to reduce density. The shear layer is an aluminum-titanium alloy transition layer to improve toughness. The mounting port is located on one side of the base layer, and a reinforcing component is installed inside the mounting port; The base layer is made of aluminum. The layers of the aluminum profile body are transitioned gradually between the reinforcing material and the aluminum matrix through powder metallurgy or extrusion casting processes to avoid stress concentration at the interface. The carbon fiber content in the intermediate layer is 30%-50%, the glass fiber content in the fiber composite layer is 10%-20%, the titanium alloy content in the shear layer is 20%-30%, and the ceramic particles have a particle size of 5-50nm.

[0008] Preferably, the reinforcing component includes a horizontal reinforcing rib and a plurality of vertical reinforcing ribs, the horizontal reinforcing rib and the plurality of vertical reinforcing ribs being arranged in a cross shape; The positions of the holes and heat dissipation holes on the reinforced components correspond.

[0009] Preferably, the top and bottom of the aluminum profile body are provided with multiple heat dissipation holes, and the reinforcing component is an aluminum-glass fiber composite layer.

[0010] Preferably, a repair layer is provided between the first outer layer and the intermediate layer and between the second outer layer and the shear layer.

[0011] Preferably, one side of the repair layer has multiple mounting holes, and each mounting hole contains a repair microcapsule; The mounting holes are evenly spaced and penetrate both sides of the repair layer.

[0012] Preferably, the repair microcapsule is encapsulated with a thermosetting resin and a curing agent, and the repair microcapsule has a diameter of 50-100 μm.

[0013] Compared with related technologies, the novel composite material aluminum profile for aviation applications provided by this utility model has the following beneficial effects: This invention provides a novel composite material for aerospace aluminum profiles. To improve the performance of aerospace aluminum profiles under complex working conditions, a complete aerospace aluminum profile is composed of a base layer, a first outer layer, an intermediate layer, an inner layer, a fiber composite layer, a shear layer, and a second outer layer. The first and second outer layers utilize aluminum as the matrix to form an aluminum-based ceramic composite layer composed of Al2O3, SiO2, and other ceramic particles, improving corrosion resistance and radiation resistance. Simultaneously, the intermediate layer, composed of an aluminum-carbon fiber composite layer, enhances strength. The inner layer, composed of an aluminum-graphene composite layer, improves thermal and electrical conductivity. The fiber composite layer, composed of an aluminum-glass fiber composite layer, reduces overall density while maintaining basic strength. The shear layer, a transition layer of aluminum and titanium alloy, improves the shear resistance of the aerospace aluminum profile. This design enables the aluminum profile to simultaneously possess multiple functions such as corrosion resistance, high strength, and thermal and electrical conductivity, meeting the comprehensive performance requirements of aerospace equipment in complex environments. The layered structure design allows for precise adjustment of the material ratio of each layer according to the functional requirements of different parts, achieving lightweight while ensuring performance. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of the first embodiment of the novel composite material for aviation aluminum profiles provided by this utility model; Figure 2 A structural schematic diagram of the reinforcing component is provided for this utility model; Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown; Figure 4 A schematic diagram of the structure of a second embodiment of the novel composite material for aerospace aluminum profiles provided by this utility model; Figure 5 A schematic diagram of the repair layer is provided for this utility model; Figure 6 Provided for this utility model Figure 5 A magnified view of point B shown.

[0015] The diagram is labeled as follows: 1. Aluminum profile body, 101. Base layer, 102. First outer layer, 103. Middle layer, 104. Inner layer, 105. Fiber composite layer, 106. Shear layer, 107. Second outer layer, 108. Repair layer, 2. Heat dissipation hole, 3. Reinforcing component, 301. Horizontal reinforcing rib, 302. Vertical reinforcing rib, 4. Mounting port, 5. Mounting hole, 6. Repair microcapsule. Detailed Implementation

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

[0017] First Embodiment

[0018] Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,in, Figure 1 A schematic diagram of the structure of the first embodiment of the novel composite material for aviation aluminum profiles provided by this utility model; Figure 2 A structural schematic diagram of the reinforcing component is provided for this utility model; Figure 3 Provided for this utility model Figure 2 The enlarged view at point A is shown. The new composite material aerospace aluminum profile includes: aluminum profile body 1; A base layer 101 is located in the middle of the aluminum profile body 1. One side of the base layer 101 is sequentially provided with an inner layer 104, an intermediate layer 103, and a first outer layer 102. The other side of the base layer 101 is provided with a fiber composite layer 105, a shear layer 106, and a second outer layer 107. The first outer layer 102 and the second outer layer 107 are aluminum-ceramic composite layers formed by aluminum and ceramic particles to improve corrosion resistance and radiation resistance. The inner layer 104 is an aluminum-graphene composite layer to improve thermal and electrical conductivity. The intermediate layer 103 is an aluminum-carbon fiber composite layer to improve strength. The fiber composite layer 105 is an aluminum-glass fiber composite layer to reduce density. The shear layer 106 is an aluminum-titanium alloy transition layer to improve toughness. Mounting port 4 is located on one side of the base layer 101, and a reinforcing component 3 is installed inside the mounting port 4; The base layer 101 is made of aluminum. The layers of the aluminum profile body 1 are transitioned gradually between the reinforcing material and the aluminum matrix through powder metallurgy or extrusion casting processes to avoid stress concentration at the interface. The carbon fiber content in the intermediate layer 103 is 30%-50%, the glass fiber content in the fiber composite layer 105 is 10%-20%, the titanium alloy content in the shear layer 106 is 20%-30%, the ceramic particles have a particle size of 5-50nm, the thickness of the first outer layer 102 and the second outer layer 107 is 0.1-0.3mm, and the shape of the mounting port 4 and the reinforcing component 3 are matched.

[0019] The reinforcing component 3 includes a horizontal reinforcing rib 301 and a plurality of vertical reinforcing ribs 302, wherein the horizontal reinforcing rib 301 and the plurality of vertical reinforcing ribs 302 are arranged in a cross shape; The holes and heat dissipation holes on the reinforcing component 3 are positioned in corresponding positions.

[0020] The aluminum profile body 1 has multiple heat dissipation holes 2 at its top and bottom, and the reinforcing component 3 is an aluminum and glass fiber composite layer; The second heat dissipation hole is oval-shaped, which can help dissipate heat.

[0021] The working principle of the novel composite material aluminum profile for aviation applications provided by this utility model is as follows: A complete aerospace aluminum profile is composed of a base layer 101, a first outer layer 102, a middle layer 103, an inner layer 104, a fiber composite layer 105, a shear layer 106, and a second outer layer 107. The first outer layer 102 and the second outer layer 107 are aluminum-based composites with ceramic particles such as Al2O3 and SiO2 to form an aluminum-based ceramic composite layer, which improves corrosion resistance and radiation resistance. At the same time, the middle layer 103, composed of aluminum and carbon fiber composite layers, improves strength. The inner layer 104, composed of aluminum and graphene composite layers, improves thermal and electrical conductivity. The fiber composite layer 105, composed of aluminum and glass fiber composite layers, reduces the overall density while maintaining basic strength. The shear layer 106 is a transition layer between aluminum and titanium alloy, which improves the shear resistance of the aerospace aluminum profile.

[0022] Compared with related technologies, the novel composite material aluminum profile for aviation applications provided by this utility model has the following beneficial effects: To improve the performance of aerospace aluminum profiles under complex working conditions, a complete aerospace aluminum profile is constructed using a base layer 101, a first outer layer 102, an intermediate layer 103, an inner layer 104, a fiber composite layer 105, a shear layer 106, and a second outer layer 107. The first outer layer 102 and the second outer layer 107 utilize aluminum as a matrix combined with ceramic particles such as Al2O3 and SiO2 to form an aluminum-based ceramic composite layer, improving corrosion resistance and radiation resistance. Simultaneously, the intermediate layer 103, composed of an aluminum and carbon fiber composite layer, enhances strength, while the aluminum and graphene composite layer... The inner layer 104 can improve thermal and electrical conductivity, while the fiber composite layer 105, composed of aluminum and glass fiber composite layers, can reduce the overall density while ensuring basic strength. The shear layer 106 is a transition layer between aluminum and titanium alloy, which improves the shear resistance of aerospace aluminum profiles. This design enables aluminum profiles to have multiple functions such as corrosion resistance, high strength, thermal and electrical conductivity, meeting the comprehensive performance requirements of aerospace equipment in complex environments. The layered structure design can precisely adjust the material ratio of each layer according to the functional requirements of different parts, achieving lightweight while ensuring performance.

[0023] Second Embodiment

[0024] Please refer to the following: Figures 4-5 - Figure 6 , Figure 4 A schematic diagram of the structure of a second embodiment of the novel composite material for aerospace aluminum profiles provided by this utility model; Figure 5 A schematic diagram of the repair layer is provided for this utility model; Figure 6 Provided for this utility model Figure 5The enlarged view at point B shows an aerospace aluminum profile made of a novel composite material, based on the first embodiment of this application. The second embodiment of this application proposes another novel aerospace aluminum profile made of a novel composite material. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the separate implementation of the first embodiment.

[0025] Specifically, the difference in the aerospace aluminum profile of the novel composite material provided in the second embodiment of this application is that a repair layer 108 is provided between the first outer layer 102 and the middle layer 103 and the second outer layer 107 and the shear layer 106. Repair layer 108 is made of aluminum.

[0026] The repair layer 108 has multiple mounting holes 5 on one side, and each mounting hole 5 is fitted with a repair microcapsule 6. The mounting holes 5 are evenly spaced and penetrate both sides of the repair layer 108.

[0027] The repair microcapsule 6 is encapsulated with thermosetting resin and curing agent, and the repair microcapsule 6 has a diameter of 50-100 μm; Repair microcapsules 6 can autonomously repair microcracks with a diameter of less than 0.5 mm.

[0028] Compared with related technologies, the novel composite material aluminum profile for aviation applications provided by this utility model has the following beneficial effects: To achieve self-healing performance of aerospace aluminum profiles, a repair layer 108 is provided between the first outer layer 102 and the middle layer 103, and between the second outer layer 107 and the shear layer 106. The repair layer 108 is made of aluminum material with mounting holes on its surface for installing repair microcapsules 6. The repair microcapsules 6 encapsulate thermosetting resin such as epoxy resin and a curing agent. When microcracks are generated at the interface due to stress, the stress at the crack tip will puncture the repair microcapsules 6, and the resin and curing agent will flow out and undergo a polymerization reaction at the crack, forming a cured product that fills the crack. This design can autonomously repair microcracks with a diameter of less than 0.5 mm, extending the fatigue life of the profile by more than 50% and reducing the reliance on regular maintenance; the self-healing process requires no external intervention.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A novel composite material aluminum profile for aerospace applications, characterized in that, include: Aluminum profile body; The base layer is located in the middle of the aluminum profile body. One side of the base layer is provided with an inner layer, an intermediate layer and a first outer layer in sequence. The other side of the base layer is provided with a fiber composite layer, a shear layer and a second outer layer. The first and second outer layers are aluminum-based ceramic composite layers to improve corrosion resistance and radiation resistance. The inner layer is a graphene aluminum-based composite material layer to improve thermal and electrical conductivity. The intermediate layer is a carbon fiber reinforced aluminum-based composite material layer to improve strength. The fiber composite layer is a glass fiber reinforced aluminum-based composite material layer to reduce density. The shear layer is an aluminum-titanium alloy transition layer to improve toughness. The mounting port is located on one side of the base layer, and a reinforcing component is installed inside the mounting port; The reinforcing component includes horizontal reinforcing ribs and multiple vertical reinforcing ribs, which are arranged in a cross shape.

2. The aerospace aluminum profile of the novel composite material according to claim 1, characterized in that, The aluminum profile body has multiple heat dissipation holes at the top and bottom, and the reinforcing component is a glass fiber reinforced aluminum matrix composite material layer.

3. The aerospace aluminum profile of the novel composite material according to claim 1, characterized in that, A repair layer is provided between the first outer layer and the middle layer and between the second outer layer and the shear layer.

4. The aerospace aluminum profile of the novel composite material according to claim 3, characterized in that, The repair layer has multiple mounting holes on one side, and each mounting hole contains a repair microcapsule.

5. The aerospace aluminum profile of the novel composite material according to claim 4, characterized in that, The repair microcapsule is encapsulated with thermosetting resin and curing agent, and the repair microcapsule has a diameter of 50-100 μm.

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