A manufacturing and forming method for a carbon fiber car spoiler

Abstract

The present invention provides a method for manufacturing a carbon fiber automobile tail wing. A left side panel, a right side panel and a main body are respectively molded and then glued together. The manufacturing of the automobile tail wing is completed through processes such as left and right side panel molding, nylon air bag production, main body molding, and gluing treatment. The product is guaranteed to have clear and smooth appearance patterns, high production efficiency, and stable quality, thus breaking through the bottleneck of mass production and realizing engineering application.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive spoiler processing, and particularly relates to a manufacturing and forming method for a carbon fiber automotive spoiler. Background Art

[0002] Under the general environment of the country's advocacy of carbon neutrality and emission reduction, carbon fiber products are particularly important for automotive lightweighting. The biggest advantage of automotive carbon fiber products is their light weight. They are one-fourth the weight of ordinary steel. When carbon fiber products are used in automobiles, the vehicle's weight is significantly reduced, thus achieving automotive lightweighting, and thereby improving the vehicle's energy efficiency, acceleration, and braking performance. Carbon fiber products for automobiles have high strength. Currently, the T700 carbon fiber we use has a tensile strength of up to 3000 MPa, which is 4 times that of ordinary steel, and plastic parts are even incomparable. In addition to these, it also has characteristics such as high temperature resistance, high thermal conductivity, low thermal expansion, low resistance, and chemical radiation resistance. As one of the automotive modification parts, the spoiler plays a very important role in the running efficiency and overall stability of the vehicle. In recent years, with market changes and the demand for automotive lightweighting, the carbon fiber automotive spoiler, as an integral part of automotive lightweighting, has put forward higher requirements for design, materials, and manufacturing processes. The traditional manufacturing methods cannot meet the high-quality customer requirements for appearance and performance. By innovating manufacturing processes, improving spoiler structures, and exploring new manufacturing methods for spoilers, the market demand can be met.

[0003] According to the overall structure of the spoiler, the manufacturing processes on the market are all the foamed core piece-by-piece molding process method, and then the main body and the pieces are glued together with AB glue. Its disadvantages are as follows:

[0004] I. Heavy weight. Taking a well-known domestic automotive spoiler with its shape and size (1361 * 185 mm) as an example, the traditional process uses a solid carbon fiber product, and its inner core is formed by the foamed core material process plan. The foamed core material itself generates a certain weight, about 200 g - 300 g. The limitations of this process plan result in an increase in the overall weight of the product, violating the market demand for automotive lightweighting.

[0005] II. Poor strength. The foamed core material process sets the split line at the R corner connection of the main body and the side plate. Its connection method is butt gluing connection, which seriously affects the strength of the overall carbon fiber product. And some suppliers, in order to reduce the weight of the overall spoiler, will inevitably reduce the carbon fiber raw materials under the condition of not affecting the product appearance, which also leads to a weakening of the product strength, thus making the product have poor strength.

[0006] Thirdly, the appearance is defective and cannot meet the market demand. Since the process of slicing is on the main body A surface, a 2-mm gap will be generated during gluing. No matter how the post-treatment is carried out, the 3K texture cannot be perfectly joined, resulting in a defective appearance of the product, which the market cannot accept.

[0007] Fourthly, the quality is unstable and the production defect rate is high. During production, no matter how the surface of the foaming core material is treated, after the carbon fiber prepreg and the foaming core material are formed by the compression molding process and then subjected to painting and baking treatments, the solvent in the paint penetrates between the carbon fiber and the foaming core material, causing delamination and blistering between the carbon fiber and the foaming core material. Especially for products like the tail wing with a large size and a wall thickness of only 0.4 mm, this phenomenon is more likely to occur, and the defect rate is between 30% and 50%. Summary of the Invention

[0008] In order to solve the problems in the prior art, the present invention provides a method for manufacturing and forming a high-strength carbon fiber automotive tail wing, which ensures the clear and smooth appearance texture of the product, high production efficiency, and quality stability, breaks through the bottleneck of mass production, and realizes engineering applications.

[0009] The present invention solves its technical problems by adopting the following technical solutions:

[0010] The purpose of the present invention is to provide a method for manufacturing and forming a carbon fiber automotive tail wing, which is characterized by including the following steps: gluing the left side plate, the right side plate, and the main body after they are respectively formed. The left side plate is formed by gluing the left outer side plate and the left inner side plate, and the right side plate is formed by gluing the right outer side plate and the right inner side plate;

[0011] After respectively using the silicone core material compression molding process for forming, trimming is performed to complete the forming of the left outer side plate, the left inner side plate, the right outer side plate, the right inner side plate, and their gluing surfaces;

[0012] Manufacture a nylon airbag so that the shape of the nylon airbag is consistent with the structure of the main body to be formed, and air nozzles are provided at both ends of the nylon airbag;

[0013] For the upper and lower two layers, the materials are sequentially laid on the preforming jig from the outside to the inside in the order of carbon fiber twill cloth, -45-degree carbon fiber prepreg, +45-degree carbon fiber prepreg, and ±90-degree glass fiber prepreg, so that the nylon airbag is arranged in the middle of the laid materials. The left inner side plate and the right inner side plate are respectively arranged at both ends of the materials, and a part of the main body yarn is reserved inside the left inner side plate and the right inner side plate; the upper and lower preforming molds are combined together for main body preforming;

[0014] Put the preformed tail wing into the forming mold, and blow air into the nylon airbag from the air nozzles until the forming is completed;

[0015] After deflating through the air nozzle, take out the nylon airbag. After buckling the left outer plate with the left inner plate and the right outer plate with the right inner plate respectively, perform gluing treatment.

[0016] Furthermore, at both ends of the main body, there are main body yarn sleeves respectively inserted into the left inner plate and the right inner plate, so that the main body forms a seamless connection with the left inner plate and the right inner plate.

[0017] Furthermore, the part where the main body yarn is inserted is 10.5 - 30 mm.

[0018] Furthermore, when blow molding, keep the temperature at 130 - 160.5 °C and the molding pressure at 10 - 14.5 kg / cm 2 。

[0019] Furthermore, the thickness of the nylon airbag is 40 - 60 μm.

[0020] Furthermore, when gluing, choose epoxy resin glue.

[0021] Furthermore, the width of the gluing surface between the left outer plate and the left inner plate, and between the right outer plate and the right inner plate is 10 - 15 mm, and the allowance between the gluing surfaces ≤ 0.1 mm.

[0022] Furthermore, the molding process steps of the silicone core material are as follows: Install the silicone core material mold in the machine tool, set the temperature and pressure, and then start molding; When the mold temperature rises to 175 °C - 195 °C, put the solid silicone into the mold cavity according to the demand, close the mold and heat and press to form the silicone core material; Then put the pre-shaped yarn material on the surface of the silicone in the mold cavity, close the mold and perform high-temperature pressing to form.

[0023] Furthermore, the molding conditions of the silicone core material are a temperature of 175 °C - 180 °C, a machine tool pressure of 45 - 55 t / cm 2 , and the time is 15 - 30 minutes.

[0024] Furthermore, the temperature for high-temperature pressing and forming of the yarn material is 135 - 150 °C, the pressure is 40 - 50 t / cm 2 , and the time is 8 - 15 minutes.

[0025] Furthermore, the preparation method of the carbon fiber prepreg is as follows: Load the carbon fiber into the yarn rack, load the obtained epoxy resin film into the machine tool in upper and lower rolls, heat the rollers of the impregnator and then perform impregnation to obtain the carbon fiber prepreg.

[0026] Furthermore, the content of epoxy resin in the carbon fiber twill fabric is 43 - 50%, and the content of epoxy resin in the carbon fiber prepreg is 35 - 45%.

[0027] Further, the parting line between the left outer plate and the left inner plate, and between the right outer plate and the right inner plate is set in the middle of the R corner at the edge of the main body and the left inner plate / right inner plate.

[0028] Further, the air nozzle is made of nylon material added with glass fiber.

[0029] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0030] In the present invention, the left and right side plates are separately formed from the main body part, and the forming process is simpler, which is more conducive to mass production; the nylon air bag is used for blowing molding, so that the inside of the tail wing is in a hollow state, meeting the requirements of automotive lightweight, and the appearance texture is clear and smooth, ensuring the stability of quality and reducing the defective rate. By overlapping the main body yarn of the main body part with the left and right side plate parts and then forming the main body part, after forming, there is no gap at the joint, and the partial overlap of the main body yarn ensures the strength of the tail wing, meeting the requirements for the strength of the product. The parting line of the left and right side plates is designed in the middle of the R corner at the edge of the main body and the left and right side plates, solving the problem that the appearance is affected by the glue joint gap defect on the surface, and seamless connection is achieved for all the tail wing parts, making the appearance more smooth and beautiful. After the present invention passes the flaw detection and trial assembly, all indicators meet the standard requirements.

[0031] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following specifically gives the specific embodiments of the present invention. Specific Embodiments

[0032] The following further elaborates on the technical solution of the present invention in detail with specific embodiments. It should be understood that the following embodiments are only for illustrative explanation of the present invention and should not be construed as limiting the protection scope of the present invention. All technologies implemented based on the above content of the present invention are covered within the scope of protection intended by the present invention.

[0033] In addition, unless otherwise specifically stated, all kinds of raw materials, reagents, instruments and equipment used in the present invention can be obtained through market purchase or prepared by existing methods.

[0034] A manufacturing and forming method for a carbon fiber automotive tail wing includes the following steps: The left side plate, the right side plate, and the main body are respectively formed and then glued. The left side plate is formed by gluing the left outer plate and the left inner plate, and the right side plate is formed by gluing the right outer plate and the right inner plate. The operation is simple and is conducive to mass production;

[0035] 1) Forming of the left and right side plates. After respectively using the silicone core material molding process for forming and trimming, the forming of the left outer plate, the left inner plate, the right outer plate, the right inner plate and their gluing surfaces is completed;

[0036] 2) Nylon airbag manufacturing. First, use CAD software to create a 3D solid model of the main body part according to the required shape of the wing, and form the unfolded diagram of the nylon airbag to facilitate the manufacture of the nylon airbag.

[0037] 3) Forming of the main body part. Lay the materials on the preforming jig in the order of carbon fiber twill fabric, -45-degree carbon fiber prepreg, +45-degree carbon fiber prepreg, and ±90-degree glass fiber prepreg from the outside to the inside for the upper and lower layers. Place the nylon airbag in the middle of the laid materials. Set the left inner panel and the right inner panel at both ends of the materials respectively, and reserve part of the main body yarn inside the left inner panel and the right inner panel. Combine the upper and lower preforming molds together for main body preforming;

[0038] Put the preformed wing into the forming mold, and blow and form the nylon airbag through the air nozzles on both sides until the forming is completed;

[0039] 4) Gluing treatment. After deflating from the air nozzle, take out the nylon airbag, and respectively buckle the left outer panel with the left inner panel and the right outer panel with the right inner panel for gluing treatment.

[0040] For seamless connection, the main body yarns are respectively sleeved into the left inner panel and the right inner panel at both ends of the main body, so that the main body forms a seamless connection with the left inner panel and the right inner panel.

[0041] Embodiment 1

[0042] A manufacturing and forming method for a carbon fiber automotive wing includes the following steps: Glue the left side panel, the right side panel, and the main body after they are respectively formed. The left side panel is formed by gluing the left outer panel and the left inner panel, and the right side panel is formed by gluing the right outer panel and the right inner panel. The operation is simple and is conducive to batch production;

[0043] 1) Forming of the left and right side panels. After forming respectively by using the silicone core material molding process, trim the edges to complete the forming of the left outer panel, the left inner panel, the right outer panel, the right inner panel and their gluing surfaces;

[0044] After the left and right side panels are molded by using the silicone core material, trim the edges to make the gluing surfaces of the left outer panel and the left inner panel, and the right outer panel and the right inner panel match. In this embodiment, the width of the gluing surface between the left outer panel and the left inner panel, and the right outer panel and the right inner panel is 11 mm, and the allowance between the gluing surfaces ≤ 0.1 mm. There is a 0.1 mm glue liquid gap reserved, which enhances the strength of the glued body.

[0045] The molding process steps of the silicone core material are as follows: Install the silicone core material mold into the machine. After setting the temperature and pressure, start molding. When the mold temperature rises to 175°C - 195°C, put the solid silicone into the mold cavity according to the demand, close the mold, and heat and pressurize to form the silicone core material. Then put the pre-shaped yarn material on the surface of the silicone in the mold cavity, close the mold, and perform high-temperature pressing to form. The molding conditions of the silicone core material are a temperature of 180°C, a machine pressure of 50 t / cm 2 , and the time is 15 minutes. The temperature for high-temperature pressing and forming of the yarn material is 138°C, the pressure is 45 t / cm 2 , and the time is 15 minutes.

[0046] 2) Fabrication of the nylon airbag. First, use CAD software to create a 3D solid model of the main body part according to the shape of the tail wing required, and form the unfolded diagram of the nylon airbag to facilitate the fabrication of the nylon airbag. In this embodiment, nylon material with a heat resistance of 165°C, a thickness of 50 μm, and an air pressure of 15 kg / cm 2 is selected as the raw material to fabricate the nylon airbag, so that the shape of the nylon airbag is consistent with the structure of the main body to be formed. Both ends of the nylon airbag are provided with air inlets and outlets, and air nozzles are provided at the air inlets and outlets, so that a closed space is formed inside the nylon airbag;

[0047] To obtain a better forming effect and improve the forming efficiency, the heat treatment state during blow molding in this embodiment maintains a temperature of 135°C and a forming pressure of 14 kg / cm 2 .

[0048] To meet the conditions during forming heat treatment, the thickness of the nylon airbag is 55 μm.

[0049] 3) Forming of the main body part. Lay the materials on the pre-forming jig in the order of carbon fiber twill cloth, -45-degree carbon fiber prepreg, +45-degree carbon fiber prepreg, and ±90-degree glass fiber prepreg from the outside to the inside for the upper and lower layers, place the nylon airbag in the middle of the laid materials, set the left inner plate and the right inner plate at both ends of the materials respectively, and reserve part of the main body yarn inside the left inner plate and the right inner plate; Combine the upper and lower pre-forming molds together for main body pre-forming;

[0050] Put the pre-formed tail wing into the forming mold, and blow and form the nylon airbag from the air nozzles on both sides until the forming is completed.

[0051] The insertion part of the main body yarn sleeve in this embodiment is 15 mm. The main body yarn part overlaps with the inner walls of the inner side plates of the left and right side plates by 15 mm. After integral molding, there is no gap at the joint, achieving seamless connection. Moreover, the strength of the tail fin is ensured after overlapping, and the joint is not prone to breakage, corrosion, etc., meeting the strength requirements of the product. In addition, the appearance is smooth, the texture is clear and smooth, and the quality is good. After integral molding, the inside of the tail fin is hollow, with light weight, meeting the requirements of automotive lightweighting.

[0052] The preparation method of the carbon fiber prepreg is as follows: Load the carbon fiber into the yarn rack, load the obtained epoxy resin film into the machine in upper and lower rolls, heat the rollers of the impregnator and then perform impregnation to obtain the carbon fiber prepreg. Among them, the epoxy resin is put into an oven and heated to 70 °C to melt into a liquid state according to the required amount, then poured into a coater for coating, and the release paper is loaded onto the fixed rack of the coater for coating to make the resin film.

[0053] In order to improve the material strength of the main body part, the content of epoxy resin in the carbon fiber twill cloth is 44%, and the content of epoxy resin in the carbon fiber prepreg is 36%.

[0054] 4) Gluing treatment. After deflating from the air nozzle, take out the nylon airbag, buckle the left outer side plate with the left inner side plate and the right outer side plate with the right inner side plate respectively, and then perform gluing treatment. Epoxy resin glue is selected for gluing.

[0055] This embodiment selects a nylon material with a high temperature resistance of 165 °C, a thickness of 50 μm, and an air pressure of 15 kg / cm 2 as the raw material to make the nylon airbag, so that the shape of the nylon airbag is consistent with the structure of the main body to be formed. Both ends of the nylon airbag are provided with air inlets and outlets, and air nozzles are arranged at the air inlets and outlets, so that a closed space is formed inside the nylon airbag;

[0056] The carbon fiber selected in this embodiment is Toray T700 carbon fiber, its tensile strength reaches 3000 MPa, and the surface is specially treated. When impregnated with epoxy resin, it can penetrate better, enhancing the strength of the tail fin. The epoxy resin selected in this embodiment is an epoxy resin with a viscosity of 3000 - 4000 CPS / 70 ± 1, high transparency and no white spots, which has better fluidity, viscosity and operability. After gluing, the product has excellent mechanical properties, and the glass transition temperature is between 110 - 120 °C.

[0057] Example 2

[0058] A manufacturing and forming method for a carbon fiber automotive tail fin includes the following steps: Glue the left side plate, right side plate, and main body respectively after forming. The left side plate is formed by gluing the left outer side plate and the left inner side plate, and the right side plate is formed by gluing the right outer side plate and the right inner side plate. The operation is simple, which is conducive to mass production;

[0059] 1) Forming of the left and right side plates. After forming respectively by using the silicone core material molding process, trimming is carried out to complete the forming of the left outer plate, left inner plate, right outer plate, right inner plate and their bonding surfaces;

[0060] After the left and right side plates are molded by using the silicone core material, trimming is carried out to make the bonding surfaces of the left outer plate and the left inner plate, and the right outer plate and the right inner plate match. In this embodiment, the width of the bonding surface between the left outer plate and the left inner plate, and the right outer plate and the right inner plate is 15 mm, and the margin between the bonding surfaces ≤ 0.1 mm. There is a 0.1 mm glue liquid gap left, which enhances the strength of the glued body.

[0061] The steps of the silicone core material molding process are as follows: Install the silicone core material mold into the machine, set the temperature and pressure, and then start molding; When the mold temperature rises to 175 °C - 195 °C, put the solid silicone into the mold cavity according to the demand, close the mold and heat and press to form the silicone core material; Then put the pre-shaped yarn material on the surface of the silicone in the mold cavity, close the mold and carry out high-temperature compression molding. The molding conditions of the silicone core material are a temperature of 175 °C, a machine pressure of 45 t / cm 2 , and the time is 25 minutes. The temperature for the high-temperature compression molding of the yarn material is 145 °C, the pressure is 50 t / cm 2 , and the time is 10 minutes.

[0062] 2) Production of the nylon airbag. First, use CAD software to make a 3D solid model of the main body part according to the shape of the tail wing required, and form the developed drawing of the nylon airbag, which is convenient for the production of the nylon airbag. In this embodiment, nylon material with a heat resistance of 165 °C, a thickness of 50 μm, and an air pressure of 15 kg / cm 2 is selected as the raw material to produce the nylon airbag, so that the outer shape of the nylon airbag is consistent with the structure of the main body to be formed. There are air inlet and outlet openings at both ends of the nylon airbag, and air nozzles are provided at the air inlet and outlet openings, so that a closed space is formed inside the nylon airbag;

[0063] In order to obtain a better molding effect and improve the molding efficiency, in this embodiment, the heat treatment state during blow molding maintains a temperature of 155 °C and a molding pressure of 12 kg / cm 2 .

[0064] In order to meet the conditions during molding heat treatment, the thickness of the nylon airbag is 45 μm.

[0065] 3) Forming the main body. For the upper and lower layers, the materials are laid on the pre-forming jig in sequence from the outside to the inside according to the order of carbon fiber twill fabric, -45° carbon fiber prepreg, +45° carbon fiber prepreg, and ±90° glass fiber prepreg. Place the nylon airbag in the middle of the laid materials, set the left inner plate and the right inner plate at both ends of the materials respectively, and reserve part of the main body yarn inside the left inner plate and the right inner plate; Combine the upper and lower pre-forming molds together for main body pre-forming;

[0066] Put the pre-formed tail fin into the forming mold, and blow air into the nylon airbag through the air nozzles on both sides until the forming is completed.

[0067] In this embodiment, the sleeved part of the main body yarn is 25 mm. Overlap the main body yarn part with the inner wall of the inner plates of the left and right side plates by 25 mm. After integral forming, there is no gap at the connection, realizing seamless connection.

[0068] The preparation method of the carbon fiber prepreg is as follows: Load the carbon fiber into the yarn rack, load the obtained epoxy resin film into the machine in upper and lower rolls, heat the rollers of the impregnator and then carry out impregnation to obtain the carbon fiber prepreg. Among them, put the epoxy resin in the oven according to the required amount, heat it to 70°C to melt it into a liquid state, pour it into the coater for coating, and load the release paper onto the fixing rack of the coater for coating to make the resin film.

[0069] In order to improve the material strength of the main body part, the content of epoxy resin in the carbon fiber twill fabric is 48%, and the content of epoxy resin in the carbon fiber prepreg is 42%.

[0070] 4) Gluing treatment. After deflating from the air nozzle, take out the nylon airbag, fasten the left outer plate and the left inner plate, and the right outer plate and the right inner plate respectively, and then carry out gluing treatment. Epoxy resin glue is selected for gluing.

[0071] In this embodiment, nylon material with a high temperature resistance of 165°C, a thickness of 50 μm, and an air pressure of 15 kg / cm 2 is selected as the raw material to make the nylon airbag, so that the shape of the nylon airbag is consistent with the structure of the main body to be formed. There are air inlets and outlets at both ends of the nylon airbag, and air nozzles are provided at the air inlets and outlets, so that a closed space is formed inside the nylon airbag;

[0072] In this embodiment, the carbon fiber selected is Toray T700 carbon fiber, its tensile strength reaches 3000 MPa, and its surface has been specially treated. When pre-impregnated with epoxy resin, it can penetrate better, enhancing the strength of the tail fin. The epoxy resin selected in this embodiment is an epoxy resin with a viscosity of 3000 - 4000 CPS / 70 ± 1, high transparency and no white dots, which has better fluidity, viscosity and operability. The glued product has excellent mechanical properties, and the glass transition temperature is between 110 - 120°C.

[0073] The splitting positions of the inner plate and the outer plate are redesigned. The parting lines between the left outer plate and the left inner plate, and between the right outer plate and the right inner plate are set in the middle of the R corner at the edge of the main body and the left inner plate / right inner plate, which solves the problem that the appearance is affected by the glue joint gap defect. Moreover, the strength is improved due to the overlap of the main body yarn at the glue joint, and the quality of the appearance texture is improved.

[0074] In order to meet the conditions during forming heat treatment, the air nozzle is made of nylon material added with glass fiber and can withstand a high temperature of 180°C.

[0075] The serial numbers of the embodiments of the present invention above are only for description and do not represent the advantages or disadvantages of the embodiments.

[0076] The embodiments of the present invention have been described above, but the present invention is not limited to the above specific embodiments. The above specific embodiments are only illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the purpose of the present invention and the scope protected by the claims. All of these are within the protection scope of the present invention.

Claims

1. A manufacturing and forming method for a carbon fiber car spoiler, characterized in that, it includes the following steps: After the left outer plate, left inner plate, right outer plate, and right inner plate are respectively formed by the silicone core material process, trimming is performed to complete the forming of the above-mentioned parts and their bonding surfaces; Manufacture a nylon airbag so that the outer shape of the nylon airbag is consistent with the structure of the main body to be formed, and air nozzles are provided at both ends of the nylon airbag; Lay materials on the pre-forming jig in the order of carbon fiber twill cloth, -45-degree carbon fiber prepreg, +45-degree carbon fiber prepreg, and ±90-degree glass fiber prepreg from the outside to the inside for the upper and lower layers, place the nylon airbag in the middle of the laid materials, set the left inner plate and the right inner plate at both ends of the materials respectively, and reserve part of the main body yarn inside the left inner plate and the right inner plate; Combine the upper and lower pre-forming molds together for main body pre-forming; Put the pre-formed spoiler into the forming mold, blow air into the nylon airbag from the air nozzle until the forming is completed; After deflating from the air nozzle, take out the nylon airbag, and respectively buckle the left outer plate and the left inner plate, and the right outer plate and the right inner plate, and then perform bonding treatment.

2. The manufacturing and forming method for a carbon fiber car spoiler as described in claim 1, characterized in that: The main body yarn is respectively sleeved into the left inner plate and the right inner plate at both ends of the main body, so that the main body is seamlessly connected with the left inner plate and the right inner plate.

3. The manufacturing and forming method for a carbon fiber car spoiler as described in claim 2, characterized in that: The sleeved part of the main body yarn is 10.5 - 30 mm.

4. The manufacturing and forming method for a carbon fiber car spoiler as described in claim 1, characterized in that: Keep the temperature at 130 - 160.5 °C and the forming pressure at 10 - 14.5 kg / cm during blow molding 2 .

5. The manufacturing and forming method for a carbon fiber car spoiler as described in claim 1, characterized in that: The width of the bonding surface between the left outer plate and the left inner plate, and the right outer plate and the right inner plate is 10 - 15 mm, and the allowance between the bonding surfaces ≤ 0.1 mm.

6. The manufacturing and forming method for a carbon fiber car spoiler as described in claim 1, characterized in that, The steps of the silicone core material molding process are: install the silicone core material mold in the machine tool, set the temperature and pressure, and then start molding; when the mold temperature rises to 175°C - 195°C, put the solid silicone into the mold cavity according to the demand, close the mold and heat and press to form the silicone core material; then put the pre-formed yarn material on the silicone surface in the mold cavity, close the mold and perform high-temperature compression molding.

7. The manufacturing and forming method for a carbon fiber car spoiler as described in claim 6, characterized in that: The temperature for hot pressing and forming the yarn material is 135 to 150 °C, the pressure is 40 to 50 t / cm 2 , and the time is 8 to 15 minutes.

8. The manufacturing and forming method for a carbon fiber car spoiler as described in claim 1, characterized in that: The parting line between the left outer plate and the left inner plate, and the right outer plate and the right inner plate is set in the middle of the R corner at the edge of the main body and the left inner plate / right inner plate.

9. The manufacturing and forming method for a carbon fiber car spoiler as described in claim 1, characterized in that: The air nozzle is made of nylon material added with glass fiber.