Carbon fiber front fork molding process and carbon fiber front fork
By rolling carbon fiber joints, wishbones and risers around the periphery of the nylon air duct, and combining ventilation pressurization and heat curing molding, the problem of low production efficiency of carbon fiber front forks is solved, and efficient production and high-quality molding are achieved.
Patent Information
- Application Number
- CN202211059021.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-08-30
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2042-08-30
AI Technical Summary
The existing carbon fiber front fork production efficiency is low, especially because the carbon fiber front fork product has a Y-shaped structure and the carbon fiber gauze coating time is long, resulting in low production efficiency.
Carbon fiber material is used to roll the outer periphery of two nylon air ducts to form a Y-shaped carbon fiber joint, and the nylon air ducts are inserted into the inner cavity of the carbon fiber wishbone and vertical tube. Through ventilation, pressurization and heating curing, the carbon fiber joint, wishbone and vertical tube are independently rolled to form a carbon fiber preform.
The production efficiency of carbon fiber front forks is improved, mutual interference of gases between the inner cavities of the forks is avoided, molding quality is ensured, and mold costs and processing time are reduced.
Smart Images
Figure CN115416332B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of carbon fiber bicycle production, in particular to a molding process of a carbon fiber front fork and a carbon fiber front fork. Background Art
[0002] Carbon fiber bicycles are high-end, new, and environmentally friendly bicycles that are lightweight and strong, making them particularly suitable for mountain bikes. A carbon fiber front fork is a key component of a carbon fiber bicycle. Currently, carbon fiber front forks are commonly manufactured using an air bag molding process, where carbon fiber gauze is wrapped around the outer periphery of the air bag, ventilated and pressurized, and the carbon fiber gauze is heat-melted and solidified to form the finished product. However, due to the Y-shaped structure of carbon fiber front forks, the integrated wrapping of the air bag with carbon fiber gauze takes a long time, resulting in low production efficiency.
[0003] Therefore, there is an urgent need for a carbon fiber front fork molding process and a carbon fiber front fork, in which each component of the carbon fiber preform is independently rolled to improve the production efficiency of the carbon fiber front fork. Summary of the Invention
[0004] An object of the present invention is to provide a carbon fiber front fork molding process and a carbon fiber front fork, wherein each component of a carbon fiber preform is independently rolled to improve the production efficiency of the carbon fiber front fork.
[0005] To achieve this object, the present invention adopts the following technical solutions:
[0006] In a first aspect, a molding process for a carbon fiber front fork is provided, the molding process comprising the following steps:
[0007] Carbon fiber material is used to roll the outer periphery of two nylon air ducts to form a Y-shaped carbon fiber joint;
[0008] Insert one end of one of the nylon air ducts extending from the left output port of the carbon fiber joint into the inner cavity of the left carbon fiber forkbone, and make the left carbon fiber forkbone abut against the left output port; insert one end of the other nylon air duct extending from the right output port of the carbon fiber joint into the inner cavity of the right carbon fiber forkbone, and make the right carbon fiber forkbone abut against the right output port; insert one end of the two nylon air ducts extending from the input port of the carbon fiber joint into the inner cavity of the carbon fiber vertical tube, and make the carbon fiber vertical tube abut against the input port; the carbon fiber joint, the left carbon fiber forkbone, the right carbon fiber forkbone and the carbon fiber vertical tube constitute a carbon fiber preform;
[0009] placing the carbon fiber preform into a mold device, ventilating and pressurizing the two nylon air ducts, and heating the mold device;
[0010] After the carbon fiber preform is cured and formed, the two nylon air ducts are pulled out.
[0011] As an optional technical solution, before inserting the two nylon air ducts into the inner cavities of the left carbon fiber wishbone and the right carbon fiber wishbone respectively, the following steps are further included:
[0012] The ports at one end of the two nylon air ducts are sealed.
[0013] As an optional technical solution, after sealing the ports at one end of the two nylon air ducts, the following steps are further included:
[0014] Blow air into the ports at the other ends of the two nylon air tubes to stretch them, insert the sealed end of one of the nylon air tubes into the inner cavity of the carbon fiber left wishbone, and insert the sealed end of the other nylon air tube into the inner cavity of the carbon fiber right wishbone.
[0015] As an optional technical solution, the carbon fiber preform is placed in a mold device, specifically: the carbon fiber preform is placed in a forming mold of the mold device, and the carbon fiber preform is positioned, and after the carbon fiber left forkbone is stably abutted against the left output port, the carbon fiber right forkbone is stably abutted against the right output port, and the carbon fiber vertical tube is stably abutted against the input port, the outer mold of the mold device is covered.
[0016] As an optional technical solution, the two nylon air ducts are ventilated and pressurized, specifically: the unsealed ports of the two nylon air ducts are ventilated and pressurized so that the internal pressure of the two nylon air ducts is maintained within 200PSI.
[0017] As an optional technical solution, the distance from the sealing position of one of the nylon air ducts to the left output port is equal to the distance from the sealing position of another of the nylon air ducts to the right output port.
[0018] As an optional technical solution, before inserting the two nylon air ducts into the inner cavities of the left carbon fiber wishbone and the right carbon fiber wishbone respectively, the following steps are further included:
[0019] The carbon fiber left wishbone and the carbon fiber right wishbone are respectively rolled up using carbon fiber material, the left hook is embedded in the carbon fiber left wishbone, and the right hook is embedded in the carbon fiber right wishbone.
[0020] As an optional technical solution, the mold device is heated, specifically: the mold device is placed on a hot press table and heated at 145 degrees Celsius for 45 minutes.
[0021] In a second aspect, a carbon fiber front fork is provided, wherein the carbon fiber front fork is manufactured using the molding process described above.
[0022] The beneficial effects of the present invention are:
[0023] The present invention provides a forming process for a carbon fiber front fork and a carbon fiber front fork. When producing the carbon fiber front fork, the carbon fiber joint, the carbon fiber left fork bone, the carbon fiber right fork bone and the carbon fiber vertical tube are independently rolled, that is, the rolled carbon fiber joint, the carbon fiber left fork bone, the carbon fiber right fork bone and the carbon fiber vertical tube can all be rolled in batches, so as to shorten the time for rolling the carbon fiber material on the periphery of the nylon air duct, and directly select the rolled carbon fiber left fork bone, the carbon fiber right fork bone and the carbon fiber vertical tube and respectively sleeve them on the periphery of the nylon air duct, which can shorten the time for obtaining the carbon fiber preform, thereby improving the production efficiency of the carbon fiber front fork; and two nylon air ducts that are not connected to each other are collected for ventilation and pressurization, so that the carbon fiber left fork bone and the carbon fiber right fork bone will not interfere with each other during solidification and molding, that is, the gas input into the inner cavity of the carbon fiber left fork bone will not flow into the inner cavity of the carbon fiber right fork bone, and conversely, the gas input into the inner cavity of the carbon fiber right fork bone will not flow and move to the inner cavity of the carbon fiber left forkbone; since the carbon fiber front fork is a Y-shaped structure, it is difficult for the nylon air duct to pass through the fork position of the Y-shaped structure. Therefore, the present invention rolls a carbon fiber joint on the periphery of the two nylon air ducts, which can improve production efficiency; the carbon fiber left forkbone, the carbon fiber right forkbone and the carbon fiber vertical tube of the present invention are all straight-cylinder structures or close to straight-cylinder structures. Therefore, the efficiency of inserting the nylon air duct into the inner cavity of the carbon fiber left forkbone, the inner cavity of the carbon fiber right forkbone and the inner cavity of the carbon fiber vertical tube can be guaranteed; after the nylon air duct is inserted into the inner cavity of the carbon fiber left forkbone, the inner cavity of the carbon fiber right forkbone and the inner cavity of the carbon fiber vertical tube, the carbon fiber left forkbone is abutted against the left output port, the carbon fiber right forkbone is abutted against the right output port, and the carbon fiber vertical tube is abutted against the input port. When fixed and formed, the carbon fiber front fork will not have a situation where the thickness of a certain part is too thick or concave, thereby ensuring the molding quality of the carbon fiber front fork. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The present invention will be further described in detail below based on the accompanying drawings and examples;
[0025] Figure 1 is a process flow chart of the molding process of the carbon fiber front fork described in the embodiment;
[0026] Figure 2 Schematic diagram of the structure of the carbon fiber front fork described in the embodiment;
[0027] Figure 3 Schematic diagram of the structure of the carbon fiber joint described in the embodiment (the nylon air duct passing through the carbon fiber joint is not shown).
[0028] In the picture:
[0029] 1. Carbon fiber connector; 11. Left output port; 12. Right output port; 13. Input port; 2. Carbon fiber left wishbone; 3. Carbon fiber right wishbone; 4. Carbon fiber riser; 5. Left dropout; 6. Right dropout. DETAILED DESCRIPTION
[0030] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.
[0031] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.
[0032] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0033] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.
[0034] In this specification, reference to terms such as "one embodiment" or "example" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.
[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.
[0036] like Figure 1 As shown, this embodiment provides a molding process for a carbon fiber front fork, and the molding process includes the following steps:
[0037] S100: Use carbon fiber material to roll around the outer circumference of two nylon air ducts to form a Y-shaped carbon fiber joint 1.
[0038] S200. Insert one end of one of the nylon air ducts extending from the left output port 11 of the carbon fiber joint 1 into the inner cavity of the carbon fiber left forkbone 2, and make the carbon fiber left forkbone 2 abut against the left output port 11; insert one end of the other nylon air duct extending from the right output port 12 of the carbon fiber joint 1 into the inner cavity of the carbon fiber right forkbone 3, and make the carbon fiber right forkbone 3 abut against the right output port 12; insert one end of the two nylon air ducts extending from the input port 13 of the carbon fiber joint 1 into the inner cavity of the carbon fiber vertical tube 4, and make the carbon fiber vertical tube 4 abut against the input port 13; the carbon fiber joint 1, the carbon fiber left forkbone 2, the carbon fiber right forkbone 3 and the carbon fiber vertical tube 4 constitute a carbon fiber preform.
[0039] S300, placing the carbon fiber preform into the mold device, ventilating and pressurizing the two nylon air ducts, and heating the mold device.
[0040] S400, after the carbon fiber preform is cured and formed, two nylon air ducts are pulled out.
[0041] Specifically, the nylon air duct is a soft material and is in a collapsed state when not under stress. When producing a carbon fiber front fork, the carbon fiber joint 1, the carbon fiber left fork bone 2, the carbon fiber right fork bone 3 and the carbon fiber vertical tube 4 are independently rolled, that is, the rolled carbon fiber joint 1, the carbon fiber left fork bone 2, the carbon fiber right fork bone 3 and the carbon fiber vertical tube 4 can all be rolled in batches to shorten the time for rolling the carbon fiber material around the periphery of the nylon air duct. Compared with the method of rolling the carbon fiber preform as a whole around the periphery of the nylon air duct, this embodiment does not need to roll the carbon fiber left fork bone 2, the carbon fiber right fork bone 3 and the carbon fiber vertical tube 4 one by one around the periphery of the nylon air duct, but directly selects the already rolled carbon fiber left fork bone. 2. The carbon fiber right wishbone 3 and the carbon fiber vertical tube 4 can be respectively sleeved on the outer periphery of the nylon air duct, which can shorten the time of obtaining the carbon fiber preform, thereby improving the production efficiency of the carbon fiber front fork; and by collecting two nylon air ducts that are not connected to each other for ventilation and pressurization, the carbon fiber left wishbone 2 and the carbon fiber right wishbone 3 will not interfere with each other during curing and molding, that is, the gas input into the inner cavity of the carbon fiber left wishbone 2 will not flow into the inner cavity of the carbon fiber right wishbone 3, and conversely, the gas input into the inner cavity of the carbon fiber right wishbone 3 will not flow into the inner cavity of the carbon fiber left wishbone 2; Since the carbon fiber front fork is a Y-shaped structure, the carbon fiber left wishbone The left fork bone 2 and the right fork bone 3 of the carbon fiber are symmetrically arranged on both sides of the carbon fiber joint 1. It is difficult for the nylon air duct to turn and pass through the fork position of the Y-shaped structure. If the nylon air duct is set on the outer periphery of the guide tube, it is also impossible to accurately find the inner cavity of the left carbon fiber fork bone 2 or the inner cavity of the right carbon fiber fork bone 3 at the fork position of the carbon fiber joint 1 through the guide tube. It is also possible that the guide tube will puncture the nylon air duct due to the large turning angle. Therefore, in this embodiment, the carbon fiber joint 1 is rolled around the outer periphery of the two nylon air ducts, and both nylon air ducts extend to the outside of the carbon fiber joint 1. The wishbone 2, the right carbon fiber wishbone 3, and the carbon fiber standpipe 4 are all straight-cylinder structures or structures close to straight-cylinder structures. The nylon air duct extending outward from the carbon fiber joint 1 can be easily introduced into the left carbon fiber wishbone 2, the right carbon fiber wishbone 3, and the carbon fiber standpipe 4, thereby improving production efficiency. In this embodiment, the left carbon fiber wishbone 2, the right carbon fiber wishbone 3, and the carbon fiber standpipe 4 are all straight-cylinder structures or structures close to straight-cylinder structures. Therefore, the efficiency of inserting the nylon air duct into the inner cavities of the left carbon fiber wishbone 2, the inner cavities of the right carbon fiber wishbone 3, and the inner cavities of the carbon fiber standpipe 4 can be guaranteed.After the nylon air duct is inserted into the inner cavities of the left and right carbon fiber wishbones 2 and 3, and the inner cavities of the carbon fiber riser 4, the left carbon fiber wishbone 2 abuts the left output port 11, the right carbon fiber wishbone 3 abuts the right output port 12, and the carbon fiber riser 4 abuts the input port 13. During the fixed molding process, the carbon fiber front fork will not have any parts that are too thick or concave. In other words, there will be no overlap or gaps between the left carbon fiber wishbone 2 and the left output port 11, between the right carbon fiber wishbone 3 and the right output port 12, and between the carbon fiber riser 4 and the input port 13. Therefore, the sidewalls of the carbon fiber front fork will not be too thick or too thin, thereby ensuring the molding quality of the carbon fiber front fork.
[0042] Optionally, before inserting the two nylon air ducts into the inner cavities of the left carbon fiber wishbone 2 and the right carbon fiber wishbone 3 respectively, the following steps may also be included:
[0043] S201. Seal the ports at one end of the two nylon air ducts. A wind pressure system, such as a gas compressor, inputs gas into the nylon air ducts. Because the ports at one end of the nylon air ducts are sealed, the gas pressure within the nylon air ducts is precisely controlled, and the gas flow rate is much lower than if the nylon air ducts were open. This prevents the gas input into the nylon air ducts from affecting the molding of the carbon fiber material sheathed around the nylon air ducts. For example, the gas can prevent the molten carbon fiber material from flowing irregularly, causing the molded product to fail to meet quality requirements.
[0044] Optionally, after sealing the ports at one end of the two nylon air ducts, the following steps are further included:
[0045] S202: Blow air into the ports at the other ends of the two nylon air tubes to stretch them, insert the sealed end of one nylon air tube into the inner cavity of the left carbon fiber wishbone 2, and insert the sealed end of the other nylon air tube into the inner cavity of the right carbon fiber wishbone 3. After blowing air into the nylon air tubes, the portions of the nylon air tubes located outside the carbon fiber joint 1 are in a straightened state or nearly straightened state, making them easier to insert into the inner cavities of the left carbon fiber wishbone 2, the right carbon fiber wishbone 3, and the carbon fiber riser 4.
[0046] Optionally, the carbon fiber preform is placed in the mold device, specifically by placing the carbon fiber preform in a forming mold of the mold device and positioning the carbon fiber preform. After the carbon fiber left wishbone 2 is stably abutted against the left output port 11, the carbon fiber right wishbone 3 is stably abutted against the right output port 12, and the carbon fiber riser 4 is stably abutted against the input port 13, the outer mold of the mold device is covered. After the carbon fiber preform is placed in the forming mold of the mold device, the carbon fiber preform is positioned to prevent the carbon fiber left wishbone 2 from being separated from the left output port 11, the carbon fiber right wishbone 3 from being separated from the right output port 12, and the carbon fiber riser 4 from being separated from being abutted against the input port 13.
[0047] Optionally, the two nylon air ducts are ventilated and pressurized, specifically: ventilating and pressurizing the unsealed ports of the two nylon air ducts so that the internal pressure of the two nylon air ducts is maintained within 200 PSI.
[0048] Optionally, the distance from the sealing position of one nylon air duct to the left output port 11 is equal to the distance from the sealing position of the other nylon air duct to the right output port 12. That is, the distances from the two sealing positions to the left output port 11 and the distances to the right output port 12 are equal, respectively, and the molding form of the nylon air duct in the inner cavity of the carbon fiber left wishbone 2 is consistent with the molding form of the nylon air duct in the inner cavity of the carbon fiber right wishbone 3.
[0049] Optionally, before inserting the two nylon air ducts into the inner cavities of the left carbon fiber wishbone 2 and the right carbon fiber wishbone 3 respectively, the following steps may also be included:
[0050] S203 , rolling carbon fiber material into a carbon fiber left wishbone 2 and a carbon fiber right wishbone 3 , embedding the left hook 5 into the carbon fiber left wishbone 2 , and embedding the right hook 6 into the carbon fiber right wishbone 3 .
[0051] The existing molding process for carbon fiber front forks is to mold and produce the front fork and the dropout separately, using carbon fiber yarn sheets to form similar shapes to the front fork and the dropout, and then placing the front fork and the dropout in molds for curing. After the front fork and the dropout are cured, a hole is machined at the front end of the front fork, and the dropout is installed in the mounting hole. The gap between the dropout and the front fork is filled with carbon fiber material, and a yarn filling and baking process is performed to fix the hole. This existing molding process requires the opening of a dropout mold and a front fork mold. The number of molds is relatively large, and the mold cost is high. In addition, the front end of the front fork needs to be machined to form a mounting hole for the dropout. In addition, after gluing, glue filling, yarn filling, and baking and curing are required, resulting in a long process time and reduced production efficiency. In addition, due to the uneven bonding process, it is difficult to make the bonding position smooth during painting, which takes a lot of time.
[0052] To this end, in this embodiment, the left dropout 5 is embedded in the left carbon fiber wishbone 2, and the right dropout 6 is embedded in the right carbon fiber wishbone 3 before the left and right carbon fiber wishbones 2 and 3 are cured and formed. The molding process of this embodiment is to load the carbon fiber joint 1, the left carbon fiber wishbone 2, the right carbon fiber wishbone 3, the carbon fiber riser 4, the left dropout 5, and the right dropout 6 into a mold device for curing and molding. The carbon fiber front fork of this embodiment is molded in one piece, eliminating the need for a dropout mold, reducing mold costs; no separate dropout molding is required, saving molding time; the location where the dropout is mounted at the front end of the front fork does not require mechanical drilling, shortening production time; and no glue or yarn is required at the gluing location of the front fork and the dropout, allowing for direct production of a rough product and subsequent coating, saving time.
[0053] Optionally, the mold assembly is heated, specifically by placing the mold assembly on a hot press table and heating it at 145 degrees Celsius for 45 minutes.
[0054] like Figure 2 and Figure 3 As shown, this embodiment also provides a carbon fiber front fork, which is manufactured using the above molding process.
[0055] Furthermore, the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.
Claims
1. The molding process of carbon fiber front fork is characterized by: The molding process comprises the following steps: A carbon fiber joint (1) with a Y-shaped structure is formed by rolling carbon fiber material around the outer periphery of two nylon air ducts; The end of one of the nylon air ducts extending from the left output port (11) of the carbon fiber joint (1) is inserted into the inner cavity of the carbon fiber left fork bone (2), and the carbon fiber left fork bone (2) is abutted against the left output port (11); the end of the other nylon air duct extending from the right output port (12) of the carbon fiber joint (1) is inserted into the inner cavity of the carbon fiber right fork bone (3), and the carbon fiber right fork bone (3) is abutted against the right output port (12); the ends of the two nylon air ducts extending from the input port (13) of the carbon fiber joint (1) are jointly inserted into the inner cavity of the carbon fiber vertical tube (4), and the carbon fiber vertical tube (4) is abutted against the input port (13); the carbon fiber joint (1), the carbon fiber left fork bone (2), the carbon fiber right fork bone (3) and the carbon fiber vertical tube (4) constitute a carbon fiber preform; The carbon fiber preform is placed in a mold device, the two nylon air ducts are ventilated and pressurized, and the mold device is heated, wherein the carbon fiber preform is placed in the mold device in a specific manner: the carbon fiber preform is placed in a forming mold of the mold device, and the carbon fiber preform is positioned, and after the carbon fiber left fork bone (2) is stably abutted against the left output port (11), the carbon fiber right fork bone (3) is stably abutted against the right output port (12), and the carbon fiber vertical tube (4) is stably abutted against the input port (13), the outer mold of the mold device is covered; After the carbon fiber preform is cured and formed, the two nylon air ducts are pulled out; Before the two nylon air ducts are respectively inserted into the inner cavity of the carbon fiber left wishbone (2) and the inner cavity of the carbon fiber right wishbone (3), the following steps are also included: The carbon fiber left wishbone (2) and the carbon fiber right wishbone (3) are respectively rolled up using carbon fiber materials, a left hook (5) is embedded in the carbon fiber left wishbone (2), and a right hook (6) is embedded in the carbon fiber right wishbone (3).
2. The molding process according to claim 1, characterized in that: Before the two nylon air ducts are respectively inserted into the inner cavity of the carbon fiber left wishbone (2) and the inner cavity of the carbon fiber right wishbone (3), the following steps are also included: The ports at one end of the two nylon air ducts are sealed.
3. The molding process according to claim 2, characterized in that: After sealing the ports at one end of the two nylon air ducts, the following steps are also included: Blow air into the ports at the other ends of the two nylon air tubes to stretch the two nylon air tubes, insert the sealed end of one of the nylon air tubes into the inner cavity of the carbon fiber left fork bone (2), and insert the sealed end of the other nylon air tube into the inner cavity of the carbon fiber right fork bone (3).
4. The molding process according to claim 1, characterized in that The two nylon air ducts are ventilated and pressurized, specifically: the unsealed ports of the two nylon air ducts are ventilated and pressurized so that the internal pressure of the two nylon air ducts is maintained within 200 PSI.
5. The molding process according to claim 2, characterized in that: The distance from the sealing position of one of the nylon air ducts to the left output port (11) is equal to the distance from the sealing position of the other nylon air duct to the right output port (12).
6. The molding process according to claim 1, characterized in that: The mold device is heated by placing the mold device on a hot press table and heating it at 145 degrees Celsius for 45 minutes.
7. Carbon fiber front fork, characterized in that, The carbon fiber front fork is manufactured using the molding process described in any one of claims 1 to 6.