Forming method of reinforced carbon fiber thermoplastic and thermosetting composite material appearance part

Through the molding process of highly impregnated long fiber reinforced thermoplastic resin composite materials, combined with metal sheet stamping and sandblasting treatment, the problem of insufficient linking method and bonding performance between thermosetting parts and thermoplastic products is solved, and the rapid, beautiful and Stable connection effect.

CN119141771APending Publication Date: 2024-12-17BEIJING NAT INNOVATION INST OF LIGHTWEIGHT LTD +1
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Patent Information

Application Number
CN202411205421.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2024-12-17

AI Technical Summary

Technical Problem

The prior art has insufficient improvement in the linking method and bonding performance between thermosetting parts and thermoplastic products, resulting in low efficiency and unsightly appearance.

Method used

Using the molding process of high-impregnated long fiber reinforced thermoplastic resin composite materials, thermoplastic molding of metal sheets, sand blasting treatment, thermosetting carbon fiber prepreg pre-preg cutting, vacuum bag pressing and injection molding thermoplastic forming, combining metal embedded parts and molding Working and decoration edges improve the bonding strength and connection aesthetics between thermosetting and thermoplastic materials.

Benefits of technology

It achieves the fast, beautiful and stable linkage of thermosetting parts, improves the bonding strength between thermosetting and thermoplastic materials, breaks the limitations of traditional linking methods, and enhances the forming efficiency and quality of composite materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a forming method of a reinforced carbon fiber thermoplastic and thermosetting type composite material appearance part, which is characterized by comprising the following steps of: stamping and forming a metal plate, (1) carrying out sand blasting treatment on the surface of a metal stamping part, (2) blanking a thermosetting carbon fiber prepreg through an automatic blanking machine according to a blanking drawing, (3) pre-paving and forming a material sheet on the required side of the stamping metal part, and (4) pre-paving and molding the material sheet on the required side of the stamping metal part. (5) putting the composite part into an injection mold for thermoplastic forming of required inverted buckles, buckles, rib positions, metal embedded parts and the like; (6) putting the composite part subjected to thermoplastic forming into a shaping tool for shaping and trimming; and (7) obtaining the reinforced carbon fiber thermoplastic and thermosetting composite material appearance part. Wherein a metal stamping layer subjected to sand blasting treatment is added between the thermosetting layer and the thermoplastic layer; therefore, two materials with insufficient bonding strength can be better bonded together. The method has the advantages that the appearance size of the product can be more accurately guaranteed by paving the thermosetting carbon fibers on the metal stamping part, the bonding strength between the thermoplastic part and the thermosetting part can be improved by adding the metal carrier between the thermoplastic part and the thermosetting part, and the excellent performance of the thermoplastic material and the thermosetting material can be perfectly fused; the original linking mode of a thermosetting material part is broken through, and the linking mode of the thermosetting part has N possibilities.
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Description

Technical Field

[0001] The invention relates to the technical field of reinforced carbon fiber thermoplastic and thermosetting fiber reinforced composite materials, and in particular to a molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts. Background Art

[0002] The thermal processing of thermoplastic materials is only a process of physical change. The heated molten body hardens when cooled. After repeated heating and cooling, its performance does not change and can be repeated many times. It hardens when cooled. After repeated heating and cooling, its performance does not change and can be repeated many times. Because thermoplastic materials can be re-plasticized and reprocessed, their plastic products can be recycled repeatedly. This thermoplastic material can be re-plasticized and reprocessed, and its plastic products can be recycled repeatedly. The materials can be reused after processing. The advantages of this type of plastic are easy processing and molding, good mechanical properties, and recyclable; post-processing material reuse. The advantages of this type of plastic are easy processing and molding, good mechanical properties, and recyclable; Advantages of plastic materials: 1. The plastic is light and has high specific strength; 2. Excellent chemical stability; 3. Excellent electrical insulation; 4. Good wear resistance and self-lubricating properties; 5. Good light transmittance and good colorability; 6. Strong heat insulation and excellent soundproofing performance: 7. Good molding and processing performance. It can be molded with more complex cutting links, convenient and fast component connection methods such as undercuts and snaps, etc.

[0003] The heating process of thermosetting plastics undergoes chemical changes, and covalent bonds are formed between molecules to form the body. After cooling, the heating continues, and the covalent bonds are destroyed during the further heating process, so that the chemical structure of the raw materials also changes. In other words, thermosetting plastics are products formed after a period of time under certain temperature, pressure or with the addition of curing agents. The advantages of this type of plastic are good heat resistance and rigidity, high hardness, dimensional stability, good fire resistance, and high flame retardant performance, but it is difficult to process. Common connection methods with other parts include screw connection, adhesive connection, riveting, etc. The connection method is labor-intensive and laborious.

[0004] After comprehensive investigation, the existing technology has not been able to improve the connection method between thermosetting parts and other parts and the bonding method between thermoplastic products and thermosetting products. Summary of the invention

[0005] In view of the defects of the prior art such as low efficiency and poor appearance, the purpose of the present invention is to provide a molding method for reinforced carbon fiber thermoplastic and thermosetting composite appearance parts, which can increase the bonding performance between thermosetting and thermoplastic materials, efficiently produce, and improve the connection method of thermosetting parts. The obtained thermosetting parts have the advantages of beautiful connection, fast connection, stable performance, etc.

[0006] In order to achieve the above objectives, the present invention provides a molding process of a highly impregnated long fiber reinforced thermoplastic resin composite material, a molding method of a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component, comprising: metal sheet stamping (1) metal stamping part surface sandblasting (2) thermosetting carbon fiber prepreg is unloaded from a unloading diagram through an automatic unloading machine (3) the sheet is pre-laid and formed on the required side of the stamped metal part (4), and then the preformed composite part is thermoset by molding or vacuum bag pressing (5), the composite part is placed in an injection mold for thermoplastic molding of undercuts, buckles, ribs, metal embedded parts, etc. (6), and the composite part after thermoplastic molding is placed in a molding tool for molding and trimming (7) to obtain a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component.

[0007] The metal sheet forming device is implemented through a stamping die (1) and a metal stamping part surface treatment is implemented through a sandblasting device (2). The thermosetting carbon fiber prepreg is unloaded by an automatic unloading machine (3). The thermosetting sheet and the stamping metal part are laid and pre-extracted by a vacuum pump bag mold to increase the temperature (4). The preformed composite part is solidified and formed by a hot press and mold or a vacuum pump and a high-temperature oven bag press (5). The composite part is placed in an injection mold to form the required undercuts, buckles, ribs, and metal embedded parts for thermoplastic forming by an injection molding machine and an injection mold (6). The composite part after thermoplastic forming is placed in a shaping tool for shaping and trimming (7) to produce reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts.

[0008] A method for forming a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component as described in claim 1, characterized in that the stamping die digital model is adjusted according to the thickness of the thermosetting layer.

[0009] A method for forming a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component as described in claim 1, characterized in that the surface of the metal stamping part is sandblasted, the gun distance: 30-70 mm, the rotation speed is 10-30, the number of round trips is 3-9 times, and the sandblasting pressure is 1.8-3.5 bar.

[0010] A method for forming a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component as described in claim 1, characterized in that the thermosetting ordinary epoxy carbon fiber prepreg is cut from a cutting diagram through an automatic cutting machine with a fiber direction of 0°90°±45°30°60° tolerance of ±5° and a cutting size accuracy of ±0.1mm.

[0011] As claimed in claim 1, a molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as described in claim 1 is characterized in that the thermosetting sheet and the stamped metal parts are laid, and the fiber and the metal stamping parts are closely attached, and the laying direction tolerance is ±5°. The pre-pumping environment is 45-60°C, and the vacuum system is established at a negative atmospheric pressure for 30 minutes, and attention is paid to preventing bridging.

[0012] The molding method of reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as described in claim 1 is characterized in that the preformed composite parts are cured, and are formed by hot press, mold compression molding or vacuum pump, high-temperature oven bag compression molding. During compression molding, the temperature curve measures the mold temperature from room temperature to 95°C, and keeps it at 95°C for 30 minutes. After the insulation is completed, pressurize, heat up to 95-130°C, and keep it at 130°C for 1.5-2h. When the vacuum system of the oven bag compression molding is established, pay attention to preventing bridging, measure the mold temperature from room temperature to 95°C, keep it at 95°C for 30 minutes, heat up to 95-130°C, and keep it at 130°C for 1.5-2h.

[0013] The molding method of reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as claimed in claim 1 is characterized in that the undercut and rib positions required for thermoplastic molding of the injection mold are realized by an injection molding machine and an injection mold. The temperature of the injection mold is maintained at 60-80°C, and the barrel temperature is 180-220°C. The corresponding hot runner temperature, standby pressure, and injection pressure are adjusted according to different injection molding materials.

[0014] The molding method of reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as described in claim 1 is characterized in that the composite part after thermoplastic molding is placed in a molding tool for molding and trimming: comprising a bottom plate, a positioning module and a plurality of fixed blocks are provided on the bottom plate, and a clamping device is installed on each of the fixed blocks. The molding tool can clamp the injection molded workpiece at multiple points, that is, the clamping device applies an external force in the opposite direction of the deformation or warping of the injection molded workpiece and maintains it for a certain period of time, which can effectively avoid deformation or warping of the processed injection molded workpiece and improve the quality of the workpiece.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) Laying thermosetting carbon fiber on metal stamping parts can more accurately ensure the product appearance dimensions

[0017] (2) The bonding strength between the thermoplastic and the thermosetting material can be increased by adding a metal carrier between the two.

[0018] (3) Perfectly integrate the excellent properties of thermoplastic materials with thermosetting materials

[0019] (4) Breaking the original connection method of thermosetting material parts and making the connection method possible in N ways BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 The present invention is a schematic diagram of the principle of a molding method for a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component. Specifically, a molding method for a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component, wherein the molding process includes the following steps: metal sheet stamping (1) metal stamping part surface sandblasting (2) thermosetting carbon fiber prepreg is unloaded from the unloading diagram through an automatic unloading machine (3) the sheet is pre-laid and formed on the required side of the stamped metal part (4), and then the preformed composite part is thermoset by molding or vacuum bag pressing (5), the composite part is placed in an injection mold for thermoplastic molding of undercuts, buckles, ribs, metal embedded parts, etc. (6), and the composite part after thermoplastic molding is placed in a molding tool for molding and trimming (7) to obtain a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component (8). DETAILED DESCRIPTION

[0021] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0022] Embodiment 1: 1. A method for forming a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component as described in claim 1, characterized in that the stamping die digital model is adjusted according to the thickness of the thermosetting layer.

[0023] 2. A molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as described in claim 1, characterized in that the surface of the metal stamping part is sandblasted, the gun distance is 30-70mm, the rotation speed is 10-30, the number of round trips is 3-9 times, and the sandblasting pressure is 1.8-3.5 bar.

[0024] 3. A molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as described in claim 1, characterized in that the thermosetting carbon fiber prepreg is cut from a cutting diagram through an automatic cutting machine, requiring the fiber direction to be 0°90°±45°30°60° with a tolerance of ±5° and a cutting size accuracy of ±0.1mm.

[0025] 4. As claimed in claim 1, a molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as described in claim 1 is characterized in that the thermosetting sheet and the stamped metal parts are laid together by pre-evacuation of the vacuum pump bag mold to increase the temperature, the fiber and the metal stamping parts are firmly attached, the laying direction tolerance is ±5°, the pre-evacuation environment is 45-60℃, and the vacuum system is pumped for 30 minutes under a negative atmospheric pressure. Pay attention to preventing bridging when establishing the vacuum system.

[0026] 5. The molding method of reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as claimed in claim 1, characterized in that the preformed composite parts are cured, and molded by a hot press, a mold or a vacuum pump, and a high-temperature oven bag press. During the molding, the temperature curve measures the mold temperature from room temperature to 95°C, and keeps it at 95°C for 30 minutes. After the insulation is completed, pressurize, heat up to 95-130°C, and then keep it at 130°C for 1.5-2 hours. When the vacuum system of the oven bag press molding is established, pay attention to preventing bridging, measure the mold temperature from room temperature to 95°C, keep it at 95°C for 30 minutes, and then heat up to 95-130°C and then keep it at 130°C for 1.5-2 hours.

[0027] 6. A molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as claimed in claim 1, characterized in that the undercut and rib positions required for thermoplastic molding of PP (polypropylene) in the injection mold are realized by an injection molding machine and an injection mold. The temperature of the injection mold is maintained at 40-80°C, and the barrel temperature is 220-270°C.

[0028] 7. The molding method of reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as claimed in claim 1 is characterized in that the composite part after thermoplastic molding is placed in a molding tool for molding and trimming: comprising a bottom plate, a positioning module and a plurality of fixing blocks are arranged on the bottom plate, and a clamping device is installed on each of the fixing blocks. The molding tool can clamp the injection molded workpiece at multiple points, that is, the clamping device applies an external force in the opposite direction of the deformation or warping of the injection molded workpiece and maintains it for a certain period of time, which can effectively avoid the deformation or warping of the processed injection molded workpiece and improve the quality of the workpiece.

[0029] A method for forming a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component comprises the following steps: (a) stamping and forming a metal sheet; (1) sandblasting the surface of the metal stamping component; (2) unloading the thermosetting carbon fiber prepreg from a unloading diagram through an automatic unloading machine; (3) pre-laying and forming the material sheet on the required side of the stamping metal component; (4) then thermosetting the preformed composite component by molding or vacuum bag pressing; (5) placing the composite component into an injection mold for thermoplastic molding of undercuts, buckles, ribs, metal embedded parts, etc.; (6) placing the thermoplastically formed composite component into a shaping tool for shaping and trimming; and (7) obtaining a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component.

[0030] Embodiment 2: As shown in the figure, a molding method of a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component as described in claim 1, characterized in that the stamping die number model is adjusted according to the thickness of the thermosetting layer. 2. A molding method of a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component as described in claim 1, characterized in that the surface of the metal stamping part is sandblasted, gun distance: 30-70mm, rotation speed 10-30, round trip number 3-9 times, sandblasting air pressure: 1.8-3.5 bar.

[0031] 3. A molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as described in claim 1, characterized in that the thermosetting carbon fiber prepreg is cut from a cutting diagram through an automatic cutting machine, requiring the fiber direction to be 0°90°±45°30°60° with a tolerance of ±5° and a cutting size accuracy of ±0.1mm.

[0032] 4. As claimed in claim 1, a molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as described in claim 1 is characterized in that the thermosetting sheet and the stamped metal parts are laid together by pre-evacuation of the vacuum pump bag mold to increase the temperature, the fiber and the metal stamping parts are firmly attached, the laying direction tolerance is ±5°, the pre-evacuation environment is 45-60℃, and the vacuum system is pumped for 30 minutes under a negative atmospheric pressure. Pay attention to preventing bridging when establishing the vacuum system.

[0033] 5. A molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as claimed in claim 1, characterized in that the preformed composite parts are cured, and molded by a hot press, a mold or a vacuum pump, and a high-temperature oven bag press. During the molding, the temperature curve measures the mold temperature at room temperature - 95 ° C, and keeps it at 95 ° C for 30 minutes. After the insulation is completed, pressurize. 95-130 ° C, and then keep it at 130 ° C for 1.5-2 hours. When the vacuum system of the oven bag press molding is established, pay attention to preventing bridging, measure the mold temperature at room temperature - 95 ° C, keep it at 95 ° C for 30 minutes, and then keep it at 130 ° C for 1.5-2 hours after the temperature is increased to 95-130 ° C.

[0034] 6. A molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as claimed in claim 1, characterized in that the undercut and rib positions required for thermoplastic molding of the injection mold sheet PC (polycarbonate) are realized by an injection molding machine and an injection mold. The temperature of the injection mold is maintained at 70-120°C, and the barrel temperature is 260-340°C. The corresponding hot runner temperature, standby pressure, and injection pressure are adjusted according to different injection molding materials.

[0035] 7. The molding method of reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as claimed in claim 1 is characterized in that the composite part after thermoplastic molding is placed in a molding tool for molding and trimming: comprising a bottom plate, a positioning module and a plurality of fixing blocks are arranged on the bottom plate, and a clamping device is installed on each of the fixing blocks. The molding tool can clamp the injection molded workpiece at multiple points, that is, the clamping device applies an external force in the opposite direction of the deformation or warping of the injection molded workpiece and maintains it for a certain period of time, which can effectively avoid the deformation or warping of the processed injection molded workpiece and improve the quality of the workpiece.

[0036] A method for forming a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component comprises the following steps: (a) stamping and forming a metal sheet; (1) sandblasting the surface of the metal stamping component; (2) unloading the thermosetting carbon fiber prepreg from a unloading diagram through an automatic unloading machine; (3) pre-laying and forming the material sheet on the required side of the stamping metal component; (4) then thermosetting the preformed composite component by molding or vacuum bag pressing; (5) placing the composite component into an injection mold for thermoplastic molding of undercuts, buckles, ribs, metal embedded parts, etc.; (6) placing the thermoplastically formed composite component into a shaping tool for shaping and trimming; and (7) obtaining a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component.

[0037] Embodiment 3: As shown in the figure, a molding method of a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component as described in claim 1 is characterized in that the stamping die number model is adjusted according to the thickness of the thermosetting layer. 2. As described in claim 1, a molding method of a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component is characterized in that the surface of the metal stamping part is sandblasted, gun distance: 30-70mm, rotation speed 10-30, round trip number 3-9 times, sandblasting air pressure: 1.8-3.5 bar.

[0038] 3. A molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as described in claim 1, characterized in that the thermosetting carbon fiber prepreg is cut from a cutting diagram through an automatic cutting machine, requiring the fiber direction to be 0°90°±45°30°60° with a tolerance of ±5° and a cutting size accuracy of ±0.1mm.

[0039] 4. As claimed in claim 1, a molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as described in claim 1 is characterized in that the thermosetting sheet and the stamped metal parts are laid together by pre-evacuation of the vacuum pump bag mold to increase the temperature, the fiber and the metal stamping parts are firmly attached, the laying direction tolerance is ±5°, the pre-evacuation environment is 45-60℃, and the vacuum system is pumped for 30 minutes under a negative atmospheric pressure. Pay attention to preventing bridging when establishing the vacuum system.

[0040] 5. The molding method of reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as claimed in claim 1, characterized in that the preformed composite parts are cured, and molded by a hot press, a mold or a vacuum pump, and a high-temperature oven bag press. During the molding, the temperature curve measures the mold temperature from room temperature to 95°C, and keeps it at 95°C for 30 minutes. After the insulation is completed, pressurize, heat up to 95-130°C, and keep it at 130 for 1.5-2 hours. When the vacuum system of the oven bag press molding is established, pay attention to preventing bridging, measure the mold temperature from room temperature to 95°C, keep it at 95°C for 30 minutes, heat up to 95-130°C, and keep it at 130°C for 1.5-2 hours.

[0041] 6. A molding method for reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as claimed in claim 1, characterized in that the undercut and rib positions required for thermoplastic molding of ABS (acrylic-butadiene-styrene copolymer) of the injection mold are realized by an injection molding machine and an injection mold. The temperature of the injection mold is maintained at 25-70°C, and the barrel temperature is -210-280°C. The corresponding hot runner temperature, standby pressure, and injection pressure are adjusted according to different injection molding materials.

[0042] 7. The molding method of reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts as claimed in claim 1 is characterized in that the composite part after thermoplastic molding is placed in a molding tool for molding and trimming: comprising a bottom plate, a positioning module and a plurality of fixing blocks are arranged on the bottom plate, and a clamping device is installed on each of the fixing blocks. The molding tool can clamp the injection molded workpiece at multiple points, that is, the clamping device applies an external force in the opposite direction of the deformation or warping of the injection molded workpiece and maintains it for a certain period of time, which can effectively avoid the deformation or warping of the processed injection molded workpiece and improve the quality of the workpiece.

[0043] A method for forming a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component comprises the following steps: (a) stamping and forming a metal sheet; (1) sandblasting the surface of the metal stamping component; (2) unloading the thermosetting carbon fiber prepreg from a unloading diagram through an automatic unloading machine; (3) pre-laying and forming the material sheet on the required side of the stamping metal component; (4) then thermosetting the preformed composite component by molding or vacuum bag pressing; (5) placing the composite component into an injection mold for thermoplastic molding of undercuts, buckles, ribs, metal embedded parts, etc.; (6) placing the thermoplastically formed composite component into a shaping tool for shaping and trimming; and (7) obtaining a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component.

[0044] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for molding reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts, characterized in that: include: Metal sheet stamping (1) metal stamping part surface sandblasting (2) thermosetting carbon fiber prepreg is unloaded from the unloading diagram by an automatic unloading machine (3) the sheet is pre-laid and formed on the required side of the stamped metal part (4), and then the preformed composite part is thermoset by molding or vacuum bag pressing (5), the composite part is placed in an injection mold for thermoplastic forming of undercuts, buckles, ribs, metal embedded parts, etc. (6), and the composite part after thermoplastic forming is placed in a shaping tool for shaping and trimming (7) to obtain reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts; The metal sheet forming device is implemented through a stamping die (1) and a metal stamping part surface treatment is implemented through a sandblasting device (2). The thermosetting carbon fiber prepreg is unloaded by an automatic unloading machine (3). The thermosetting sheet and the stamping metal part are laid and pre-extracted by a vacuum pump bag mold to increase the temperature (4). The preformed composite part is solidified and formed by a hot press and mold or a vacuum pump and a high-temperature oven bag press (5). The composite part is placed in an injection mold to form the required undercuts, buckles, ribs, and metal embedded parts for thermoplastic forming by an injection molding machine and an injection mold (6). The composite part after thermoplastic forming is placed in a shaping tool for shaping and trimming (7) to produce reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts.

2. The molding method of the reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts according to claim 1, characterized in that: The stamping die digital model is adjusted according to the thickness of the thermosetting layer.

3. The method for forming a reinforced carbon fiber thermoplastic or thermosetting composite material appearance component according to claim 1, characterized in that: Sandblasting of metal stamping parts, gun distance: 30-70mm, rotation speed: 10-30, reciprocating times: 3-9, sandblasting air pressure: 1.8-3.5 bar.

4. The method for forming a reinforced carbon fiber thermoplastic or thermosetting composite material appearance component according to claim 1, characterized in that: Thermosetting carbon fiber prepreg is cut according to the cutting diagram by an automatic cutting machine. The fiber direction is required to be 0°90°±45°30°60° with a tolerance of ±5° and a cutting size accuracy of ±0.1mm.

5. The method for forming a reinforced carbon fiber thermoplastic or thermosetting composite material appearance component according to claim 1, characterized in that: Thermosetting sheets and stamped metal parts are laid together by pre-evacuation with a vacuum pump bag mold. The fiber and metal stamping parts are firmly attached, and the laying direction tolerance is ±5°. The pre-evacuation environment is 45-60℃, and the vacuum is drawn for 30 minutes under a negative atmospheric pressure. Pay attention to preventing bridging when establishing the vacuum system.

6. The method for forming a reinforced carbon fiber thermoplastic or thermosetting composite material appearance component according to claim 1, characterized in that: The preformed composite parts are cured by hot press, mold compression molding or vacuum pump, high temperature oven bag compression molding. During compression molding, the temperature curve measures the mold temperature at room temperature -95℃ 95℃ for 30min, and pressurizes after the insulation. 95-130℃ 130 for 1.5-2h. When the vacuum system of oven bag compression molding is established, pay attention to preventing bridging, measure the mold temperature at room temperature -95℃ 95℃ for 30min, and 95-130℃ 130 for 1.5-2h.

7. The method for forming a reinforced carbon fiber thermoplastic or thermosetting composite material appearance component according to claim 1, characterized in that: The undercut and rib positions required for thermoplastic forming of injection molds are realized by injection molding machines and injection molds. The temperature of the injection mold is maintained at 60-80℃, and the barrel temperature is 180-220℃. The corresponding hot runner temperature, backup pressure, and injection pressure are adjusted according to different injection materials.

8. The method for forming a reinforced carbon fiber thermoplastic or thermosetting composite material appearance component according to claim 1, characterized in that: The composite part after thermoplastic forming is placed in the shaping tool for shaping and trimming: it includes a bottom plate, a positioning module and a plurality of fixing blocks are arranged on the bottom plate, and a clamping device is installed on each of the fixing blocks. The shaping tool can clamp the injection molded workpiece at multiple points, that is, the clamping device applies an external force in the opposite direction of the deformation or warping of the injection molded workpiece and maintains it for a certain period of time, which can effectively avoid the deformation or warping of the processed injection molded workpiece and improve the quality of the workpiece.

9. A method for molding reinforced carbon fiber thermoplastic and thermosetting composite material appearance parts, comprising the following steps: The metal sheet is stamped and formed (1). The surface of the metal stamping part is sandblasted (2). The thermosetting carbon fiber prepreg is unloaded from the unloading diagram through an automatic unloading machine (3). The material sheet is pre-laid and formed on the required side of the stamped metal part (4). The preformed composite part is then thermoset by molding or vacuum bag pressing (5). The composite part is placed in an injection mold to obtain the required undercuts and ribs for thermoplastic forming (6). The composite part after thermoplastic forming is placed in a shaping tool for shaping and trimming (7) to obtain a reinforced carbon fiber thermoplastic and thermosetting composite material appearance component.

Citation Information

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