Novel carbon fiber composite material wall

Abstract

The invention relates to a novel carbon fiber composite material wall which comprises an inner skin and an outer skin, the inner skin and the outer skin are made of lightweight materials, a reinforcing beam and a lightweight porous material are laid on the surface of the inner skin, the reinforcing beam is embedded in a groove of the lightweight porous material to form a center layer, and the center layer is made of a carbon fiber composite material. The outer skin is laid on the surface of the center layer, the weight of the novel carbon fiber composite material wall is reduced by dispersing stress and reducing materials, and therefore the lightweight level of the wall of a wagon body of a railway wagon is improved.

Description

[0001] The present application relates to the field of lightweight materials for railway freight cars, and in particular to a novel carbon fiber composite material wall. Background Art

[0002] In the prior art, with the increasing requirements for carrying capacity and operational efficiency, the demand for lightweight railway freight cars has become more and more urgent, and the choice of materials directly affects the performance and safety of the car body walls. The car body walls of traditional railway freight cars are mostly made of steel or other heavier metal materials. Steel has high strength and durability, but the density of steel is relatively high, resulting in a heavier overall weight of the car body, which affects transportation efficiency and energy consumption. Therefore, with the increasing demand for high efficiency and energy saving in railway freight, traditional heavy metal materials are gradually replaced by lighter and more economical materials to reduce weight, improve transportation efficiency, reduce energy consumption, and improve overall operational performance.

[0003] The prior art has the problem that the lightweight level of the body wall of the railway freight car is low. Summary of the invention

[0004] The present application provides a novel carbon fiber composite material wall to solve the problem of low lightweight level of the body wall of a railway freight car.

[0005] In some embodiments, a new type of carbon fiber composite wall includes: an inner skin and an outer skin, the inner skin and the outer skin are made of lightweight materials, reinforcing beams and lightweight porous materials are laid on the surface of the inner skin, the reinforcing beams are embedded in the grooves of the lightweight porous material to form a center layer, and the outer skin is laid on the surface of the center layer, so as to reduce the weight of the new type of carbon fiber composite wall by dispersing stress and reducing material.

[0006] In some embodiments, the lightweight porous material is a foam or honeycomb core, the foam material is filled with gas or voids, and the honeycomb structure material of the honeycomb core has a low density, so as to reduce the weight of the novel carbon fiber composite material wall.

[0007] In some embodiments, a corrosion-resistant material is applied on the surface of the contact portion between the new carbon fiber composite material wall and the preset metal component to improve the corrosion resistance of the new carbon fiber composite material wall.

[0008] In some embodiments, the corrosion-resistant material is fiber fabric or insulating structural adhesive.

[0009] In some embodiments, the reinforcing beam is bonded to the surface of the inner skin by means of a structural adhesive, and the structural adhesive is a viscous material to improve the connection strength and stability between the reinforcing beam and the inner skin.

[0010] In some embodiments, the inner skin and the outer skin are composed of carbon fibers to reduce the weight of the novel carbon fiber composite material wall.

[0011] In some embodiments, the carbon fiber is composed of unidirectional fibers or carbon fiber cloth pre-impregnated with resin or coated with resin to reduce the weight of the novel carbon fiber composite wall.

[0012] In some embodiments, prepreg is laid on a preset wall mold to form an inner skin and an outer skin, the outer skin is sealed using a vacuum bag technique, and air is extracted for pre-compaction; reinforcing beams are embedded in grooves of a lightweight porous material, and a central layer is formed by resin impregnation and curing; the central layer is laid on the surface of the inner skin, and the outer skin is laid on the surface of the central layer, and the inner skin and the outer skin are tightly combined with the central layer through a resin impregnation process; the inner skin, the outer skin, and the central layer are placed in an autoclave, and the resin is heated and cured using a hot pressing device. After curing, the mold is removed to obtain a new type of carbon fiber composite material wall that has been hot-pressed.

[0013] In some embodiments, unidirectional fibers, fabrics, and resins are added to a preset reinforcing beam mold, the preset reinforcing beam mold is heated, and demoulding is performed after heating and curing to obtain the reinforcing beam.

[0014] In some embodiments, the vacuum degree of the pre-compacting vacuum pumping is less than -80 kPa, and the pre-compacting can be performed at room temperature or under pressure in an autoclave, and the pressurized curing temperature is 40-70° C. and the pressure is 0.1-0.6 MPa.

[0015] The present application provides a novel carbon fiber composite material wall, comprising: an inner skin and an outer skin, wherein the inner skin and the outer skin are made of lightweight materials, a reinforcing beam and a lightweight porous material are laid on the surface of the inner skin, the reinforcing beam is embedded in a groove of the lightweight porous material to form a central layer, and the outer skin is laid on the surface of the central layer, so as to reduce the weight of the novel carbon fiber composite material wall by dispersing stress and reducing material, thereby solving the problem of low lightweight level of the body wall of railway freight cars. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present application will be described in more detail below based on embodiments and with reference to the accompanying drawings:

[0017] Figure 1 This is the front view of the new carbon fiber composite wall of this application;

[0018] Figure 2 This is a side view of the new carbon fiber composite wall of this application.

[0019] In the drawings, the same reference numerals are used for the same components, and the drawings are not drawn to scale. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present application, and to fully understand and implement how the present application applies technical means to solve technical problems and achieve the corresponding technical effects, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. The embodiments of the present application and the various features in the embodiments can be combined with each other without conflict, and the technical solutions formed are all within the scope of protection of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work should belong to the scope of protection of the present application.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0023] Based on the above background, this scheme proposes a new carbon fiber composite wall scheme, a new carbon fiber composite wall, including: an inner skin and an outer skin, the inner skin and the outer skin are made of lightweight materials, the surface of the inner skin is covered with reinforcing beams and lightweight porous materials, the reinforcing beams are embedded in the grooves of the lightweight porous materials to form a central layer, and the surface of the central layer is covered with the outer skin. By dispersing stress and reducing material, the weight of the new carbon fiber composite wall is reduced, thereby improving the lightweight level of the body wall of the railway freight car.

[0024] Embodiment 1

[0025] Figure 1 This is a front view of a novel carbon fiber composite material wall provided in an embodiment of the present application. Figure 2 A side view of a novel carbon fiber composite material wall provided in an embodiment of the present application, such as Figure 1 , Figure 2 As shown, a new type of carbon fiber composite wall, comprising:

[0026] In an embodiment of the present invention, a novel carbon fiber composite material wall comprises: an inner skin and an outer skin, wherein the inner skin and the outer skin are made of lightweight materials, reinforcing beams and lightweight porous materials are laid on the surface of the inner skin, the reinforcing beams are embedded in the grooves of the lightweight porous materials to form a central layer, and the outer skin is laid on the surface of the central layer, so as to reduce the weight of the novel carbon fiber composite material wall by dispersing stress and reducing material.

[0027] In detail, the design of the new carbon fiber composite wall can provide the basic support frame of the wall. The inner skin and outer skin are located on the inner and outer sides of the structure respectively, and serve as composite material layers to enhance the various properties of the wall. Through the combination of multiple layers of materials, it can take into account the structural strength, weight, corrosion resistance and impact resistance, ensuring the stability of the wall in various environments.

[0028] In detail, the inner skin, as the innermost layer of the wall, is in direct contact with the reinforcing beam and the lightweight porous material. The inner skin bears the force transmission from the outside and plays a supporting and protective role. The inner skin is usually made of carbon fiber cloth or unidirectional fiber, which has high tensile strength and stiffness, and can effectively share the load and transfer it to other parts of the structure. The carbon fiber material itself has extremely high strength and stiffness, and the inner skin can enhance the deformation resistance and impact resistance of the entire wall. The carbon fiber material is light in weight, and the inner skin can effectively reduce the overall weight of the wall. The carbon fiber material has good corrosion resistance and can extend the service life of the wall.

[0029] In detail, the outer skin is the outermost layer of the entire wall and is in direct contact with the external environment. The outer skin protects the internal structure of the wall from the influence of the external environment, and also provides a certain external strength for the wall. The outer skin is usually made of carbon fiber cloth or other composite materials, which can be combined with the core layer through resin to form a high-strength and durable composite structure. The outer skin can effectively prevent the external environment (such as moisture, ultraviolet rays, chemicals, etc.) from eroding the internal structure of the wall and extend the service life of the wall. It provides resistance to external impact and pressure, especially in high-load and high-impact environments, the outer skin can protect the internal structure from damage. The surface of the outer skin not only has good smoothness, but can also be painted or treated as needed to provide a beautiful and easy-to-maintain surface.

[0030] In the embodiment of the present invention, the lightweight porous material is foam or honeycomb core, the foam material is filled with gas or voids, and the honeycomb structure material of the honeycomb core has a low density, so as to reduce the weight of the new carbon fiber composite material wall.

[0031] In detail, the foam includes: polystyrene (EPS), polyurethane (PU) or polyvinyl chloride (PVC), etc., which has the characteristics of low density, can greatly reduce the overall weight, and provide effective support and stress dispersion capabilities through its internal bubble structure; the honeycomb core: the air gap of the honeycomb structure gives it excellent lightweight performance, especially the aluminum honeycomb structure, due to the geometric shape of the honeycomb, it can evenly disperse the external load to different units, thereby improving the compression resistance and bending resistance.

[0032] In detail, the main function of lightweight porous materials is to provide lightweight and isolation effects for walls, which can enhance the compression and shear resistance of the wall, while reducing the overall weight, and play a certain role in heat insulation and sound insulation. Lightweight porous materials usually significantly reduce the overall weight of the wall while maintaining strength. The lightweight porous material layer provides additional support, which helps to enhance the overall stiffness of the wall and improve the compressive strength of the wall. Lightweight porous materials such as honeycomb cores or foams have good heat insulation and sound insulation properties, which can effectively improve the thermal stability and sound insulation performance of the wall.

[0033] In the embodiment of the present invention, corrosion-resistant material is applied on the surface of the contact portion between the new carbon fiber composite material wall and the preset metal component to improve the corrosion resistance of the new carbon fiber composite material wall.

[0034] In detail, the preset metal parts are located on the contact surface of the wall, where the wall is connected to an external system or structure, such as the connection between the wall and the ground, the wall and the door and window frame, or the wall and other building structures. In order to improve the corrosion resistance of the galvanic couple, the contact parts of these metal parts can be isolated by laying glass fiber cloth or coating insulating structural adhesive to avoid electrochemical reactions between the metal parts and the carbon fiber composite material, thereby improving the overall corrosion resistance.

[0035] In an embodiment of the present invention, the corrosion-resistant material is fiber fabric or insulating structural adhesive.

[0036] In detail, fiber fabrics are materials formed by weaving, interweaving, knitting and other processes of various fibers (such as carbon fiber, glass fiber, aramid fiber, etc.). These fibers are processed by high temperature, high pressure and other processes to form fabrics with certain strength, rigidity, flexibility and corrosion resistance. Fiber fabrics are usually used to enhance the mechanical properties of materials and provide functions such as wear resistance and corrosion resistance.

[0037] Common types of fabrics:

[0038] Carbon fiber fabric: Made of carbon fiber, it has the characteristics of high strength, high modulus, light weight, high temperature resistance, corrosion resistance, etc. It is widely used in aerospace, racing, building reinforcement and other fields.

[0039] Fiberglass fabric: Made of glass fiber, it is resistant to high temperature and corrosion, and has high strength. It is usually used in the fields of composite material reinforcement, building fire protection, and ships.

[0040] Aramid fiber fabrics: Fibers such as Kevlar have excellent impact resistance, wear resistance and corrosion resistance, and are often used in protective equipment, military, aviation and other fields.

[0041] Insulation structural adhesive is a type of adhesive material with good electrical insulation and adhesion, usually composed of polymers, resins, fillers, etc., and has excellent heat resistance, corrosion resistance, aging resistance, etc. Insulation structural adhesive can not only form a strong bond between two parts, but also isolate external environmental factors such as moisture, chemicals, etc., thereby preventing metal parts from corroding or rusting.

[0042] In an embodiment of the present invention, the reinforcing beam is bonded to the surface of the inner skin by means of a structural adhesive, and the structural adhesive is a viscous material to improve the connection strength and stability between the reinforcing beam and the inner skin.

[0043] In detail, the structural adhesive includes: epoxy structural adhesive, polyurethane structural adhesive, acrylic structural adhesive, silicone structural adhesive, etc.

[0044] Epoxy structural adhesive: Epoxy adhesive is a common structural adhesive with very strong adhesion, high temperature resistance and corrosion resistance. It is suitable for bonding materials such as metal, glass, and plastic, and is widely used in the automotive, construction, aviation and other industries.

[0045] Polyurethane structural adhesive: Polyurethane adhesive has good elasticity and impact resistance, and is suitable for scenes that require a certain degree of flexibility and impact resistance. It also has good water resistance and chemical corrosion resistance.

[0046] Acrylic structural adhesive: Acrylic adhesive provides strong adhesion and fast curing time, and is often used for rapid assembly and processing of non-metallic materials.

[0047] Silicone structural adhesive: Silicone structural adhesive is resistant to high temperature and aging, and has good flexibility. It is suitable for applications that require high temperature resistance or extreme climatic conditions.

[0048] Structural adhesive is used to strengthen the bonding between beams and inner skins to improve the strength and stability of the connection. Through the bonding of structural adhesive, a solid bonding surface can be provided to avoid loosening or cracks in the contact part due to mechanical vibration, external force or temperature changes. The excellent corrosion resistance and anti-aging properties of structural adhesive can also extend the service life of the connection part.

[0049] Traditional connection methods such as welding and bolting usually produce local stress concentration. Welding may cause local thermal damage, while bolting may cause corrosion and other problems. The use of structural adhesives can achieve more uniform stress distribution, while eliminating the complex operations of welding or bolting, reducing the construction period, and the bonding method of structural adhesives is usually lighter than traditional mechanical connection methods (such as welding and bolts).

[0050] In an embodiment of the present invention, the inner skin and the outer skin are composed of carbon fibers to reduce the weight of the new carbon fiber composite material wall.

[0051] In detail, carbon fiber is a lightweight and high-strength material commonly used in high-end manufacturing fields such as aerospace and automobiles. The advantage of carbon fiber lies in its excellent tensile strength and rigidity, which can effectively enhance the mechanical properties of the wall. Using carbon fiber as a skin material can reduce the total weight of the wall while providing sufficient strength and durability, which is particularly suitable for engineering applications that require weight reduction and high performance.

[0052] In the embodiment of the present invention, the carbon fiber is composed of unidirectional fibers or carbon fiber cloth pre-impregnated with resin or coated with resin, so as to reduce the weight of the new carbon fiber composite material wall.

[0053] In detail, the carbon fiber layer generally refers to a composite material layer formed by combining carbon fiber material with resin. Specifically, the manufacturing process of this carbon fiber layer can be carried out in the following two common ways:

[0054] Resin prepreg process: Resin prepreg is to pre-mix the resin with the carbon fiber material and impregnate the resin into the unidirectional carbon fiber or carbon fiber cloth. The resin will penetrate the fiber under a certain temperature and pressure to form a semi-cured prepreg material. This material facilitates more precise molding in the subsequent manufacturing process, ensures uniform distribution of the resin, and provides stronger bonding. The pre-impregnated carbon fiber material can be further cured by hot pressing or vacuum treatment during the production process to form a strong, lightweight composite material structure.

[0055] Resin coating process: Resin coating is done by applying resin directly to the surface of unidirectional carbon fiber or carbon fiber cloth, usually at different stages of the production process. The resin coating process is relatively flexible and can be done by hand coating, spraying or dipping to ensure that the resin is evenly distributed on the fiber layer. After coating, the material may need to be cured (such as hot pressing or heat curing) to enhance stability.

[0056] In detail, unidirectional fiber refers to a fiber bundle in which carbon fibers are arranged in a single direction, usually formed into a prepreg by resin impregnation or coating. Its characteristic is that all fibers are arranged in the same direction, which makes unidirectional carbon fiber have very high strength and rigidity in this direction. Due to the directional arrangement of the fibers, unidirectional carbon fiber can show excellent mechanical properties when it is mainly subjected to tensile or compressive loads. The strength of unidirectional fiber in the fiber direction is very high and can effectively withstand tension. The directionality of the fiber enhances the rigidity and stability of the composite material in this direction.

[0057] Carbon fiber cloth is a fabric composed of interwoven carbon fibers, usually in plain or twill weave. These carbon fibers can have different arrangement directions in the fabric, usually staggered in the horizontal and vertical directions. Since the fibers are arranged in multiple directions, carbon fiber cloth can withstand loads from all directions and has more balanced mechanical properties. Compared with unidirectional fibers, carbon fiber cloth has better flexibility and is easy to make into parts with complex shapes.

[0058] In an embodiment of the present invention, prepreg is laid on a preset wall mold to form an inner skin and an outer skin, the outer skin is sealed by a vacuum bag technique, and air is extracted for pre-compaction; the reinforcing beam is embedded in the groove of the lightweight porous material, and a central layer is formed by resin impregnation and curing; the central layer is laid on the surface of the inner skin, and the outer skin is laid on the surface of the central layer, and the inner skin and the outer skin are tightly combined with the central layer through a resin impregnation process; the inner skin, the outer skin and the central layer are placed in an autoclave, and the resin is heated and cured using a hot pressing device. After curing is completed, the mold is demolded to obtain a new type of carbon fiber composite material wall that has been subjected to hot pressing treatment.

[0059] In detail, the autoclave process mainly places the preformed composite material (such as a composite material of carbon fiber, glass fiber, etc. and resin) into a sealed autoclave, and solidifies the resin in a high temperature and high pressure environment to finally obtain a composite material component with high strength, high stiffness and low weight.

[0060] The autoclave process can produce composite parts with extremely high strength, stiffness and durability. Through the vacuum and high pressure environment, the resin can be evenly penetrated between the fibers, eliminating bubbles and gaps, and improving the density and structural consistency of the final product. The autoclave process can precisely control the heating, pressurizing and curing process, so it can produce parts with high dimensional accuracy and stable quality.

[0061] In detail, the inner skin is laid and cured on one side of the core layer so that the two form a whole. The curing process of the resin ensures the close bonding of this layer of material, thus ensuring that the inner skin layer can effectively bear the internal and external loads and transmit stress.

[0062] The reinforcing beams are transverse structures embedded in the lightweight porous material to improve the resistance to bending and shearing. The honeycomb or foam layer in the lightweight porous material will have special grooves or preset spaces to embed the reinforcing beams. The reinforcing beams can be fixed by resin impregnation or integrated with the lightweight porous material during the material curing process to obtain the core layer.

[0063] The outer skin is bonded to the core in a similar way to the inner skin, primarily through the bonding action of resin. The core is usually coated with a layer of resin on the outer surface, followed by the outer skin. Once this layer of resin cures, a strong bond is formed between the outer skin and the core. The outer skin usually provides additional rigidity and impact resistance, so its connection is critical to ensure that external loads are evenly distributed throughout the wall.

[0064] During the production process, all these layers of structure (inner skin, lightweight porous material, reinforcement beam, outer skin) are pressed and cured in a preset wall mold. By controlling the pressure and temperature, the close fit and structural integrity between the layers are ensured. After the curing process is completed, the entire wall structure will form a new carbon fiber composite wall.

[0065] The completed wall components (including the combination of inner skin, lightweight porous material, outer skin and reinforcing beams) will be cut, matched and assembled according to the design requirements. In order to enhance the stability of the structure and facilitate installation, these units are usually further connected by metal connectors, bolts or other mechanical connection methods. Such connection methods not only ensure the integrity of the wall, but also can cope with the stress that may occur during the installation process.

[0066] In an embodiment of the present invention, unidirectional fibers, fabrics and resin are added to a preset reinforcing beam mold, the preset reinforcing beam mold is heated, and demoulding is performed after heating and curing to obtain the reinforcing beam.

[0067] In detail, the reinforcing beam is a key part of the wall structure, which mainly improves the overall structural stability of the wall. The reinforcing beam forms a central layer together with the lightweight porous material to enhance the mechanical properties of the wall, such as anti-bending and anti-shearing. The reinforcing beam is made of unidirectional carbon fiber or carbon fiber fabric combined with resin, has high bending strength, and can effectively improve the overall stiffness of the wall. The reinforcing beam can significantly improve the rigidity and load resistance of the wall, especially for walls that are subjected to large external forces, which can effectively prevent local deformation or damage. The reinforcing beams are evenly distributed in the structure of the wall, which helps to reasonably share the load, avoid stress concentration, and improve safety.

[0068] In the embodiment of the present invention, the vacuum degree of the pre-compacting vacuum pumping is less than -80 kPa, and the pre-compacting can be performed at room temperature or under pressure in an autoclave, and the pressurized curing temperature is 40-70° C. and the pressure is 0.1-0.6 MPa.

[0069] In detail, through vacuum extraction and pressurization, bubbles or voids in the material can be effectively reduced, making the composite material or resin layer more uniform and dense. For fiber-reinforced composites, pre-compacting can ensure more uniform resin penetration, enhance the overall performance of the material, and improve strength and durability.

[0070] It should be noted that, in this application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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 device. In the absence of further restrictions, an element limited by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0071] Although the implementation methods disclosed in this application are as above, the above contents are only the implementation methods adopted for facilitating the understanding of this application, and are not intended to limit this application. Any technician in the technical field to which this application belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this application, but the scope of patent protection of this application shall still be based on the scope defined in the attached claims.

Claims

1. A new type of carbon fiber composite wall, comprising: The inner skin and the outer skin are made of lightweight materials. The surface of the inner skin is covered with reinforcing beams and lightweight porous materials. The reinforcing beams are embedded in the grooves of the lightweight porous materials to form a central layer. The outer skin is laid on the surface of the central layer. The weight of the new carbon fiber composite material wall is reduced by dispersing stress and reducing material.

2. The novel carbon fiber composite material wall according to claim 1, characterized in that: The lightweight porous material adopts foam or honeycomb core, the foam material is filled with gas or voids, and the honeycomb structure material of the honeycomb core has low density, so as to reduce the weight of the novel carbon fiber composite material wall.

3. The novel carbon fiber composite material wall according to claim 1, characterized in that: The surface of the contact part between the new carbon fiber composite material wall and the preset metal parts is coated with corrosion-resistant material to improve the corrosion resistance of the new carbon fiber composite material wall.

4. The novel carbon fiber composite material wall according to claim 3, characterized in that: The corrosion-resistant material is fiber fabric or insulating structural adhesive.

5. The novel carbon fiber composite material wall according to claim 1, characterized in that: The reinforcing beam is bonded to the surface of the inner skin by means of structural adhesive, and the structural adhesive is a viscous material to improve the connection strength and stability between the reinforcing beam and the inner skin.

6. The novel carbon fiber composite material wall according to claim 1, characterized in that: The inner skin and the outer skin are composed of carbon fibers to reduce the weight of the novel carbon fiber composite material wall.

7. The novel carbon fiber composite material wall according to claim 6, characterized in that: The carbon fiber is composed of unidirectional fibers or carbon fiber cloth pre-impregnated with resin or coated with resin, so as to reduce the weight of the new carbon fiber composite material wall.

8. A method for manufacturing a new type of carbon fiber composite material wall, characterized in that: Prepreg is laid on a preset wall mold to form an inner skin and an outer skin, the outer skin is sealed by a vacuum bag technology, and air is extracted for pre-compaction; the reinforcing beam is embedded in the groove of the lightweight porous material, and a central layer is formed by resin impregnation and curing; the central layer is laid on the surface of the inner skin, and the outer skin is laid on the surface of the central layer, and the inner skin and the outer skin are tightly combined with the central layer through a resin impregnation process; the inner skin, the outer skin and the central layer are placed in an autoclave, and the resin is heated and cured by a hot pressing device. After curing, the mold is demoulded to obtain a new type of carbon fiber composite material wall that has been subjected to hot pressing treatment.

9. The method for manufacturing a new type of carbon fiber composite material wall according to claim 8, characterized in that: Unidirectional fibers, fabrics and resin are added into a preset reinforcing beam mold, the preset reinforcing beam mold is heated, and demoulding is performed after heating and curing to obtain the reinforcing beam.

10. The method for manufacturing a new type of carbon fiber composite material wall according to claim 8, characterized in that: The vacuum degree of pre-compacting vacuum pumping is less than -80kPa. Pre-compacting can be carried out at room temperature or under pressure in an autoclave. The pressurized curing temperature is 40-70°C and the pressure is 0.1-0.6Mpa.

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