A high-efficiency short-process fiber metal corrugated laminate preparation method and device

Abstract

The present invention provides a highly efficient and short-process process and apparatus for pre-curing, inflating, curing, and diffusion bonding of fiber-metal corrugated laminates. The apparatus comprises an upper gas line, an intermediate gas line, a lower gas line, an air pressure control system, an air pressure bottle, a resistance furnace, a temperature control system, a press and displacement sensor, a thermocouple, a PID control system, a solenoid valve, an upper mold, and a lower mold. The process flow is as follows: S1, preparation of carbon fiber prepreg and pretreatment of the laminate; S2, preparation of the fiber-metal corrugated laminate; S3, diffusion bonding of adjacent metal layers; S4, gradual cooling and pressure reduction for demolding. The present invention integrates the preparation and forming process of carbon fiber-reinforced magnesium alloy corrugated laminates with the diffusion bonding process of adjacent metal layers. The cross-linking and curing effect between the carbon fiber-reinforced epoxy resin and the magnesium alloy sheet material is uniform and excellent. The carbon fiber-magnesium alloy corrugated laminate components have high shape accuracy and excellent diffusion bonding of adjacent metal layers.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon fiber reinforced magnesium alloy plates, in particular to a process and device for preparing carbon fiber reinforced magnesium alloy plates by precuring / expansion forming / curing. Background Art

[0002] Magnesium alloys have high specific strength and specific stiffness, as well as strong anti-seismic performance, anti-electromagnetic performance, and excellent thermal and electrical conductivity. They are widely used in transportation, automobiles, and consumer electronics. However, magnesium alloys also have disadvantages such as low high-temperature strength and poor corrosion resistance. In particular, the low high-temperature strength seriously limits its further application in the industrial field. Carbon fiber has the advantages of light weight, high strength, high modulus, high temperature resistance, corrosion resistance, erosion and sputtering resistance, as well as good designability and compositeness. However, carbon fiber has poor shear strength and impact resistance under external shear force. Carbon fiber reinforced magnesium alloy plate can combine the advantages of carbon fiber and magnesium alloy plate, which can significantly improve the room temperature strength and high temperature strength of magnesium alloy.

[0003] At present, the forming of fiber metal laminate curved surface parts is mainly divided into two types: one is self-forming technology, in which fiber prepreg and metal plates are alternately laid on a mold with a certain shape, and then cured under certain temperature and pressure conditions to form a fiber reinforced metal laminate of the target shape. However, it can only form fiber reinforced metal laminate parts with a small curvature, and the manufacturing cost is relatively high. Currently, self-forming technology is a relatively mature technical method for preparing fiber reinforced metal laminates; the other is to directly plastically form the prepared fiber reinforced metal laminate to obtain the target shape, but due to the limited fiber deformation and the large performance difference between the metal layer and the fiber resin layer of the laminate, the shape of the parts formed by this method is relatively limited. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and provide a preparation device and preparation process of fiber metal corrugated laminates. The gas expansion technology is adopted, the mold structure is simple, the drawing force of the plate is uniform, and the pressure during forming is also uniform. The process flow of the entire manufacturing process is both efficient and concise.

[0005] To achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions:

[0006] A high-efficiency and short-process method for preparing fiber metal corrugated laminates comprises the following steps:

[0007] S1, carbon fiber prepreg preparation and laminate pretreatment;

[0008] S11, preparing carbon fiber reinforced epoxy resin prepreg;

[0009] S12. Placing carbon fiber reinforced epoxy resin with different weaving directions between two layers of magnesium alloy plates in the order of metal plate / carbon fiber / metal plate / metal plate / carbon fiber / metal plate, with the middle two metal plates adjacent to each other, and placing the middle gas pipeline between the two metal plates;

[0010] S13. Place the laminate in a vacuum bag and perform vacuum treatment to prepare the environment for the pre-curing process, eliminate bubbles and avoid misalignment between the layers, so as to ensure the good fit and positioning between the plate and the carbon fiber prepreg;

[0011] S2. Preparation of fiber metal corrugated laminates;

[0012] S21, placing the carbon fiber reinforced laminate in a vacuum hot pressing furnace and heating the laminate to 110-130° C., introducing high-pressure inert gas into the upper gas pipeline and the lower gas pipeline at an applied pressure of 20-30 MPa, and holding the pressure for 3-5 minutes to obtain a pre-cured carbon fiber reinforced magnesium alloy laminate;

[0013] S22, the upper mold and the lower mold are both corrugated laminate forming constraint molds, the upper and lower molds are closed, and the carbon fiber reinforced fiber metal laminate is continuously heated to 180-200°C and kept warm for 3-5 minutes;

[0014] S23: High-pressure inert gas is introduced into the intermediate gas pipeline, and the pressure gradient is loaded to 30~40MPa;

[0015] S24, the pre-cured carbon fiber reinforced magnesium alloy sheet gradually comes close to the upper and lower rigid concave molds to perform inflation forming, and the fiber reinforced resin layer of the laminate gradually solidifies during the component forming process;

[0016] S25, heat preservation and pressure holding time is 30-35min, and the fiber metal corrugated laminate is completely cured;

[0017] S3, diffusion connection of adjacent metal layers;

[0018] S31: During the forming / curing process of the fiber metal corrugated laminate, the temperature and pressure are maintained continuously, and then the press continues to pulse pressurize the contact area between the rigid upper and lower dies and the fiber metal laminate by controlling the current frequency;

[0019] S32: After the forming / curing process is completed, the heat preservation is continued for 25 to 30 minutes, and the diffusion connection between adjacent metal plates is completed;

[0020] S4, gradually reducing the temperature and pressure, and demoulding to obtain the fiber metal corrugated laminate.

[0021] A high-efficiency, short-process fiber metal corrugated laminate preparation device comprises an upper gas pipeline, an intermediate gas pipeline, a lower gas pipeline, an air pressure control system, an air pressure bottle, a resistance furnace, a temperature control system, a press, a displacement sensor, a thermocouple, a PID control system, a solenoid valve, an upper mold and a lower mold; one end of the upper gas pipeline and the lower gas pipeline are both connected to the air pressure bottle, and the other end is connected to the upper mold and the lower mold respectively, so that when gas is introduced into the equipment, gas can be introduced simultaneously and evenly from the top and bottom, which is conducive to pre-curing; the end of the intermediate gas pipeline is connected by a plurality of small hoses, which are placed at equal intervals between adjacent metal plates and their positions correspond to the cavities of the upper mold and the lower mold.

[0022] Preferably, the carbon fiber reinforced laminate is placed in a vacuum hot pressing furnace and heated to 110-130° C., high-pressure gas is introduced into the upper and lower gas paths, the applied pressure is 20-30 MPa, and the pressure holding time is 3-5 minutes to obtain a pre-cured carbon fiber reinforced magnesium alloy laminate.

[0023] Preferably, the plying order of the fiber metal layer is metal plate / carbon fiber / metal plate / metal plate / carbon fiber / metal plate, the middle two metal plates are adjacent, and the more small hoses connected to the middle gas pipeline are placed between the two metal plates.

[0024] Preferably, the fiber metal corrugated laminate is kept warm after forming / curing, and then the press controls the current frequency to continue pulse pressurizing the contact area between the rigid upper and lower molds and the fiber metal laminate to achieve diffusion connection between the metal plates.

[0025] Preferably, the fiber metal laminate in steps S2 and S3 is first pre-cured, and then the corrugated laminate component forming / curing process is carried out, and the diffusion connection process of adjacent metal plates is also carried out simultaneously during the forming / curing process.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. The present invention can obtain the required metal plate layer structure by performing a pre-curing-expansion forming-curing-diffusion bonding preparation process on a carbon fiber rare earth magnesium alloy laminate of the metal plate / carbon fiber / metal plate / metal plate / carbon fiber / metal plate type. The process flow of the entire manufacturing process is both efficient and concise.

[0028] 2. The present invention adopts gas bulging technology, the mold structure is simple, the drawing force of the plate is uniform, and the pressure during forming is also uniform.

[0029] 3. The size of the plate in the present invention is not limited and can be adjusted according to usage requirements, which greatly expands its scope of use and can be used in various scenarios.

[0030] 4. The present invention can integrate the fiber metal corrugated plate pre-curing-air expansion forming-curing-diffusion connection preparation process and the forming process. The diffusion effect of the two layers of corrugated board is uniform and excellent, and the shape accuracy of the fiber metal corrugated plate component is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a preparation process flow chart of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the preparation device of the present invention;

[0033] Figure 3 This is a heating and pressurizing flow chart of the preparation process of the present invention;

[0034] Figure 4 This is a schematic diagram of the mold opening stage of the preparation device of the present invention;

[0035] Figure 5 Schematic diagram of the mold closing stage of the preparation device of the present invention

[0036] Figure 6 Schematic diagram of the inflation forming stage of the preparation device of the present invention

[0037] Figure 7 It is a structural schematic diagram of the product prepared by the present invention.

[0038] Reference numerals in the accompanying drawings:

[0039] 1. Upper gas pipeline; 2. Intermediate gas pipeline; 3. Displacement sensor; 4. Resistance furnace; 5. Temperature control system; 6. PID control system; 7. Thermocouple; 8. Press; 9. Lower mold; 10. Lower gas pipeline; 11. Upper mold; 12. Solenoid valve; 13. Air pressure control system; 14. Air pressure bottle. DETAILED DESCRIPTION

[0040] Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiments are only used to illustrate the present invention and are not used in limiting the scope of the present invention.In addition, should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0041] Example 1: As shown in the attached Figure 1 The present invention is a method for preparing fiber metal corrugated sheets with high efficiency and short process, comprising the steps of:

[0042] Step 1: Preparation of carbon fiber prepreg and laminate pretreatment

[0043] Step 2: Preparation of fiber metal corrugated laminates

[0044] Step 3: Diffusion connection of adjacent metal layers

[0045] Step 4: Gradual cooling and pressure reduction, demoulding, and obtaining fiber metal corrugated laminates.

[0046] The specific implementation steps of step 1 include:

[0047] S11, preparing carbon fiber reinforced epoxy resin prepreg;

[0048] S12. Placing carbon fiber reinforced epoxy resin with different weaving directions between two layers of magnesium alloy plates in the order of metal plate / carbon fiber / metal plate / metal plate / carbon fiber / metal plate, with the middle two metal plates adjacent to each other and the middle gas pipeline placed between the two metal plates;

[0049] S13. Place the laminate in a vacuum bag and perform vacuum treatment to prepare the environment for the pre-curing process, eliminate bubbles and avoid misalignment between the layers, so as to ensure the good fit and positioning between the plate and the carbon fiber prepreg;

[0050] The specific implementation steps of step 2 include:

[0051] S21. Place the carbon fiber reinforced laminate in a vacuum hot pressing furnace and heat the laminate to 110-130° C., introduce high-pressure inert gas into the upper gas pipeline 1 and the lower gas pipeline 10, apply a pressure of 20-30 MPa, and hold the pressure for 3-5 minutes to obtain a pre-cured carbon fiber reinforced magnesium alloy laminate.

[0052] S22, the upper mold 11, and the lower mold 9 are all corrugated laminate forming constraint molds. The upper and lower molds are closed, and the carbon fiber reinforced fiber metal laminate is continuously heated to 180-200°C and kept warm for 3-5 minutes.

[0053] S23. High-pressure inert gas is introduced into the intermediate gas pipeline 2, and the gas pressure gradient is loaded to 30~40MPa.

[0054] S24. The pre-cured carbon fiber reinforced magnesium alloy sheet gradually comes close to the upper and lower rigid dies for inflation forming. During the component forming process, the fiber reinforced resin layer of the laminate gradually solidifies.

[0055] S25, the heat preservation and pressure holding time is 30-35 minutes, and the fiber metal corrugated laminate is completely cured.

[0056] The specific implementation steps of step three include:

[0057] S31. During the forming / curing process of the fiber metal corrugated laminate, the temperature and pressure are kept constant. Then, the press controls the current frequency to continue pulse pressurizing the contact area between the rigid upper mold 11, the lower mold 9 and the fiber metal laminate.

[0058] S32. After the forming / curing process is completed, the heat preservation is continued for 25 to 30 minutes, and the diffusion connection between adjacent metal plates is completed.

[0059] Furthermore, the carbon fiber reinforced laminate is placed in a vacuum hot pressing furnace and heated to 110-130° C., high-pressure gas is introduced into the upper and lower gas paths, the applied pressure is 20-30 MPa, and the pressure holding time is 3-5 minutes to obtain a pre-cured carbon fiber reinforced magnesium alloy laminate.

[0060] Furthermore, the plying order of the fiber metal layer is metal plate / carbon fiber / metal plate / metal plate / carbon fiber / metal plate, the middle two metal plates are adjacent, and the plurality of small hoses connected to the middle gas pipeline are placed between the two metal plates.

[0061] Furthermore, high-pressure inert gas is introduced into the intermediate gas pipeline.

[0062] Furthermore, after the fiber metal corrugated laminate is formed / cured, it is kept warm. By controlling the frequency of the current output by the press, the rigid mold continues to pulse pressurize the contact area with the fiber metal laminate to achieve diffusion connection between the metal plates.

[0063] Furthermore, the gradient temperature and pressure reduction reduces the rebound of the fiber metal corrugated laminate.

[0064] Furthermore, in the steps 2 and 3, the fiber metal laminates are first pre-cured, and then the corrugated laminate component forming / curing process is carried out, and the diffusion connection process of adjacent metal plates is also carried out simultaneously during the forming / curing process.

[0065] Example 2: As shown in the attached Figure 2The present invention is a high-efficiency short-process fiber metal corrugated plate preparation device, which includes an upper mold 11, a lower mold 9, a resistance furnace 4, and a thermocouple 7 installed on a press 8. The upper mold 11 and the lower mold 9 are both concave molds, and concave cavities are provided at the same positions of the upper mold 11 and the lower mold 9. The upper mold 11 and the lower mold 9 are both located in the resistance furnace 4. The resistance furnace 4 is connected to the PID control system 6 through the temperature control system 5. The thermocouple 7 is connected to the PID control system 6. The upper mold 11 is provided with an upper gas pipeline 1 connected to the mold cavity of the upper mold 11, and one end of the upper gas pipeline 1 is embedded in the top of the upper mold 11. The lower mold 9 is provided with a lower gas pipeline 10 connected to the mold cavity of the lower mold 9, and one end of the lower gas pipeline 10 is embedded in the bottom of the lower mold 9. The upper gas pipeline 1 and the lower gas pipeline 10 are both connected to the air pressure control system 13, and the air pressure control system 13 is connected to the air pressure bottle 14. The air pressure bottle 14 can be an air pressure bottle filled with inert gas, and an intermediate gas pipeline 2 is provided on the air pressure control system 13. The ends of the intermediate gas pipeline 2 are connected by a plurality of small hoses. The hoses are placed at equal intervals between adjacent metal plates, and their positions correspond to the cavities of the upper mold 11 and the lower mold 9. The intermediate gas pipeline 2 is provided with several branch joints at one end away from the air pressure control system 13. Solenoid valves 12 are installed on the upper gas pipeline 1, the lower gas pipeline 10, and the intermediate gas pipeline 2. A displacement sensor 3 is provided on the press 8, which is connected to the air pressure control system 13 for signal communication.

[0066] Example 3: The present invention is a specific method for preparing a fiber metal corrugated sheet with a high efficiency and short process, comprising the following steps:

[0067] S11. Cut the carbon fiber cloth into a suitable length, soak it in a beaker of acetone for 2 days, take it out and dry it, then soak it in 60% nitric acid for 50 minutes, and air-dry it for later use; quickly mix the above-synthesized epoxy resin and ethylenediamine curing agent according to a certain amount to prepare glue, and evenly apply the resin glue to both sides of the treated carbon fiber cloth at room temperature with a brush;

[0068] S12. Lay the carbon fiber cloth flat on a 1 mm thick AZ80 magnesium alloy plate in a solid solution state, and evenly apply the glue solution with a brush after each layer of carbon fiber cloth, for a total of 7 layers. Finally, cover it with the same 1 mm thick AZ80 magnesium alloy plate. This will produce a carbon fiber metal laminate.

[0069] S13. After laying the hose parallel to the middle of the two prepared laminates, put it into a vacuum bag for vacuum treatment to provide environmental preparation for the pre-curing process, eliminate bubbles and avoid misalignment between the layers, so as to ensure the fit and positioning between the board and the carbon fiber prepreg.

[0070] S21, placing the prepared carbon fiber reinforced laminate in a vacuum hot pressing furnace and heating it to 125° C., introducing high-pressure inert gas, applying a pressure of 25 MPa, and holding the pressure for 3 minutes to obtain a pre-cured carbon fiber reinforced magnesium alloy laminate;

[0071] S22, closing the upper and lower molds, and continuing to heat the pre-cured carbon fiber reinforced magnesium alloy laminate to 190° C. for 2 minutes and a holding time of 3 minutes;

[0072] S23, introducing helium through the intermediate gas pipeline of the air pressure control system to a pressure of 40 MPa to create a pressure difference;

[0073] S24, the pre-cured carbon fiber reinforced magnesium alloy sheet is gradually brought into contact with the rigid die to perform inflation forming, and the fiber reinforced resin layer of the laminate is gradually cured during the component forming process;

[0074] S25. After forming, the holding pressure is 35 MPa and the holding time is 30 min; the temperature of the forming mold is kept unchanged to allow the metal sheet layer to completely solidify.

[0075] S31, at the same time, the rigid upper and lower molds continue to pulse pressurize the contact areas with the fiber metal laminate;

[0076] S32. After the forming / curing process is completed, the heat preservation is continued for 30 minutes, and the diffusion connection between adjacent metal plates is completed.

[0077] S4, finally gradually reduce the gas pressure on the upper surface of the carbon fiber reinforced magnesium alloy laminate component to 0MPa. Close the device, open the mold after cooling the forming mold and remove the component, and obtain the carbon fiber reinforced magnesium alloy corrugated component as shown in FIG. Figure 5 .

[0078] The room temperature tensile strength, high temperature tensile strength and shear strength between carbon fiber and magnesium alloy laminates of carbon fiber reinforced magnesium alloy components are high. The room temperature tensile strength reaches 473MPa, and the high temperature tensile strength at 300℃ reaches 265MPa.

[0079] Example 4: The present invention is a specific method for preparing a fiber metal corrugated sheet with high efficiency and short process, comprising the following steps:

[0080] S11. Cut the carbon fiber cloth into a suitable length, soak it in a beaker of acetone for 2 days, take it out and dry it, then soak it in 60% nitric acid for 45 minutes, and air-dry it for later use; quickly mix the above-synthesized epoxy resin and ethylenediamine curing agent according to a certain amount to prepare glue, and evenly apply the resin glue to both sides of the treated carbon fiber cloth at room temperature with a brush;

[0081] S12. Lay the carbon fiber cloth on a 1mm thick rare earth magnesium alloy plate, apply glue evenly with a brush after each layer of carbon fiber cloth, lay a total of 7 layers, and finally cover it with the same 1mm thick rare earth magnesium alloy plate. Obtain a spare carbon fiber rare earth magnesium alloy laminate;

[0082] S13. After laying the hose parallel to the middle of the two prepared laminates, place them in a vacuum bag for vacuum treatment to prepare the environment for the pre-curing process, eliminate bubbles and avoid misalignment between the laminates, thereby ensuring the good fit and positioning between the laminate and the carbon fiber prepreg.

[0083] S21, placing the prepared carbon fiber reinforced laminate in a vacuum hot pressing furnace and heating it to 1130° C., introducing high-pressure inert gas, applying a pressure of 30 MPa, and holding the pressure for 3 minutes to obtain a pre-cured carbon fiber reinforced magnesium alloy laminate;

[0084] S22, closing the upper and lower molds, and continuing to heat the pre-cured carbon fiber reinforced magnesium alloy laminate to 200° C. for 2 minutes and a holding time of 3 minutes;

[0085] S23, introducing helium through the intermediate gas pipeline of the air pressure control system to a pressure of 35 MPa to create a pressure difference;

[0086] S24, the pre-cured carbon fiber reinforced magnesium alloy sheet is gradually brought into contact with the rigid die to perform inflation forming, and the fiber reinforced resin layer of the laminate is gradually cured during the component forming process;

[0087] S25. After forming, the holding pressure is 35 MPa and the holding time is 30 min; the temperature of the forming mold is kept unchanged to allow the metal sheet layer to completely solidify.

[0088] S31, at the same time, the rigid upper and lower molds continue to pulse pressurize the contact areas with the fiber metal laminate;

[0089] S32. After the forming / curing process is completed, the heat preservation is continued for 30 minutes, and the diffusion connection between adjacent metal plates is completed.

[0090] S4, finally gradually reduce the gas pressure on the upper surface of the carbon fiber reinforced magnesium alloy laminate component to 0MPa. Close the device, open the mold after cooling the forming mold and remove the component, and obtain the carbon fiber reinforced magnesium alloy corrugated component as shown in FIG. Figure 5 .

[0091] The room temperature tensile strength, high temperature tensile strength and shear strength between carbon fiber and magnesium alloy laminates of carbon fiber reinforced magnesium alloy components are high. The room temperature tensile strength reaches 598MPa, and the high temperature tensile strength at 300℃ reaches 379MPa.

Claims

1. A high-efficiency short-process method for preparing fiber metal corrugated laminates, characterized by: Including steps: S1, carbon fiber prepreg preparation and laminate pretreatment; S11, preparing carbon fiber reinforced epoxy resin prepreg; S12, placing carbon fiber reinforced epoxy resin prepregs with different weaving directions between two layers of magnesium alloy plates in the order of metal plate / carbon fiber / metal plate / metal plate / carbon fiber / metal plate, with the middle two layers of metal plates adjacent to each other, and placing the middle gas pipeline (2) between the two layers of metal plates; S13. Place the laminate in a vacuum bag and perform vacuum treatment to prepare the environment for the pre-curing process, eliminate bubbles and avoid misalignment between the layers, so as to ensure the good fit and positioning between the plate and the carbon fiber prepreg; S2. Preparation of fiber metal corrugated laminates; S21, placing the laminate in a vacuum hot pressing furnace and heating the laminate to 110-130°C, introducing high-pressure inert gas into the upper gas pipeline (1) and the lower gas pipeline (10), applying a pressure of 20-30 MPa, and holding the pressure for 3-5 minutes to obtain a pre-cured carbon fiber reinforced magnesium alloy laminate; S22, the upper mold (11) and the lower mold (9) are both corrugated laminate forming constraint molds, the upper and lower molds are closed, and the carbon fiber reinforced fiber metal laminate is continuously heated to 180-200°C and kept warm for 3-5 minutes; S23, the intermediate gas pipeline (2) is fed with high-pressure inert gas, and the pressure gradient is loaded to 30~40MPa; S24, the pre-cured carbon fiber reinforced magnesium alloy sheet gradually comes close to the upper and lower rigid concave molds to perform inflation forming, and the fiber reinforced resin layer of the laminate gradually solidifies during the component forming process; S25, heat preservation and pressure holding time is 30-35min, and the fiber metal corrugated laminate is completely cured; S3, diffusion connection of adjacent metal layers; S31, during the forming / curing process of the fiber metal corrugated laminate, the heat and pressure are continuously maintained, and then the press continues to pulse pressurize the contact area between the rigid upper mold (11), the lower mold (9) and the fiber metal laminate by controlling the current frequency; S32: After the forming / curing process is completed, the heat preservation is continued for 25 to 30 minutes, and the diffusion connection between adjacent metal plates is completed; S4, gradually reducing the temperature and pressure, and demoulding to obtain the fiber metal corrugated laminate.

2. A preparation device for executing the high-efficiency short-process fiber metal corrugated laminate preparation method according to claim 1, characterized in that: The invention comprises an upper gas pipeline (1), an intermediate gas pipeline (2), a lower gas pipeline (10), an air pressure control system (13), an air pressure bottle (14), a resistance furnace (4), a temperature control system (5), a press (8), a displacement sensor (3), a thermocouple (7), a PID control system (6), a solenoid valve (12), an upper mold (11) and a lower mold (9); one end of each of the upper gas pipeline (1) and the lower gas pipeline (10) is connected to the air pressure bottle (14), and the other end is connected to the upper mold (11) and the lower mold (9), so that when gas is introduced into the equipment, gas can be introduced uniformly from the upper and lower parts at the same time; the end of the intermediate gas pipeline (2) is connected by a plurality of small hoses, which are placed between adjacent metal plates at equal intervals and are positioned corresponding to the cavities of the upper mold (11) and the lower mold (9).

3. The method for preparing a high-efficiency short-process fiber metal corrugated laminate according to claim 1, characterized in that: The plying order of the fiber metal layer is metal plate / carbon fiber / metal plate / metal plate / carbon fiber / metal plate. The two middle metal plates are adjacent, and the many small hoses connected to the middle gas pipeline are placed between the two metal plates.

4. The method for preparing a high-efficiency short-process fiber metal corrugated laminate according to claim 1, characterized in that: In the steps S2 and S3, the fiber metal laminate is first pre-cured, and then the corrugated laminate component is formed / cured. During the forming / curing process, the diffusion connection process of adjacent metal sheets is also carried out simultaneously.

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