High-strength carbon fiber pipe fitting

By employing a multi-layered composite structure and material selection, the overall strength and corrosion resistance of carbon fiber tubes have been improved, solving the problem of insufficient strength in existing carbon fiber tubes and achieving high-strength and durable carbon fiber tube fittings.

CN223622449UActive Publication Date: 2025-12-02CHIN CARTON FIBER TECH
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Patent Information

Application Number
CN202422969841.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-12-02
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

The existing carbon fiber tubes have low strength properties and cannot meet the application requirements.

Method used

It adopts a multi-layer composite structure, including inner and outer carbon fiber layers, plastic reinforcing strips, reinforcing sleeve layer and metal fiber reinforcing layer, combined with gypsum layer and ABS resin inner sleeve, and an outer BOPP tape composite layer to improve the overall structural strength.

Benefits of technology

The overall structural strength of the carbon fiber tube is improved, meeting the high strength requirements, and it has better corrosion resistance and dent resistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of carbon fiber pipes, and particularly relates to a high-strength carbon fiber pipe fitting which comprises a first carbon fiber layer on the inner layer and a second carbon fiber layer on the outer layer, a plurality of plastic reinforcing strips are compounded between the first carbon fiber layer and the second carbon fiber layer, and a reinforcing sleeve layer is fixedly compounded on the first carbon fiber layer. A metal fiber reinforcing layer is compounded between the first carbon fiber layer and the reinforcing sleeve layer, an outer brush layer is compounded on the outer portion of the second carbon fiber layer, and the pipe fitting is composed of the first carbon fiber layer, the second carbon fiber layer, the plastic reinforcing strips, the reinforcing sleeve layer and the metal fiber reinforcing layer and is of a multi-layer composite structure. The overall structural strength of the carbon fiber pipe fitting is improved, and the requirement of a high-strength carbon fiber pipe is met.
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Description

Technical Field

[0001] This utility model relates to the field of carbon fiber tube technology, specifically high-strength carbon fiber tube fittings. Background Technology

[0002] Carbon fiber tubes, also known as carbon fiber tubes or carbon tubes, are made by pre-impregnating carbon fiber composite materials with styrene-based polyester resin and then heating and curing them through pultrusion (winding). During the manufacturing process, various profiles can be produced using different molds.

[0003] However, current carbon fiber tubes, which are formed by winding carbon fiber filaments using specific processes, do not have very high strength properties and cannot meet people's usage needs. In view of this, we have researched and improved the existing problems to provide high-strength carbon fiber tubes with the advantages of reasonable structural design and high carbon fiber tube strength, so as to solve the problems and improve practical value. Therefore, we propose high-strength carbon fiber tube fittings. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a high-strength carbon fiber pipe fitting. This fitting consists of a double-layered first carbon fiber layer and a second carbon fiber layer, a plastic reinforcing strip, a reinforcing sleeve layer, and a metal fiber reinforcing layer. The multi-layered composite structure improves the overall structural strength of the carbon fiber pipe fitting, meets the requirements of high-strength carbon fiber pipes, and solves the problems mentioned earlier.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-strength carbon fiber tube includes an inner first carbon fiber layer and an outer second carbon fiber layer. Several plastic reinforcing strips are laminated between the first carbon fiber layer and the second carbon fiber layer. A reinforcing sleeve layer is fixedly laminated to the first carbon fiber layer. A metal fiber reinforcing layer is laminated between the first carbon fiber layer and the reinforcing sleeve layer. An outer brush layer is laminated to the outside of the second carbon fiber layer.

[0007] A space is formed between adjacent plastic reinforcing strips, and the space is filled with a layer of plaster.

[0008] The reinforcing sleeve layer uses an ABS resin inner sleeve.

[0009] The metal fiber reinforcing layer is made of a wire mesh composed of stainless steel fiber wires.

[0010] The outer brush layer is composed of two layers of BOPP tape.

[0011] The outer surface of the plastic reinforcing strip is wrapped with aramid fiber threads.

[0012] This invention provides high-strength carbon fiber tubing. Compared with the prior art, it has the following advantages:

[0013] 1. This high-strength carbon fiber pipe fitting consists of a double-layered first carbon fiber layer and a second carbon fiber layer, a plastic reinforcing strip, a reinforcing sleeve layer, and a metal fiber reinforcing layer. It adopts a multi-layered composite structure, which improves the overall structural strength of the carbon fiber pipe fitting and meets the requirements of high-strength carbon fiber pipes. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0017] In the diagram: 1. Reinforcing sleeve layer; 2. Metal fiber reinforcing layer; 3. First carbon fiber layer; 4. Plastic reinforcing strip; 5. Plaster layer; 6. Second carbon fiber layer; 7. Outer brush layer. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a high-strength carbon fiber tube, including an inner first carbon fiber layer 3 and an outer second carbon fiber layer 6, with a plurality of plastic reinforcing strips 4 composited between the first carbon fiber layer 3 and the second carbon fiber layer 6, a reinforcing sleeve layer 1 fixedly composited to the first carbon fiber layer 3, a metal fiber reinforcing layer 2 composited between the first carbon fiber layer 3 and the reinforcing sleeve layer 1, and an outer brush layer 7 composited to the outside of the second carbon fiber layer 6.

[0020] This high-strength carbon fiber tube is composed of a double-layered first carbon fiber layer 3 and a second carbon fiber layer 6, which are incorporating a plastic reinforcing strip 4, a reinforcing sleeve layer 1, and a metal fiber reinforcing layer 2. Through the double-layered carbon fiber layer, the plastic reinforcing strip 4, the reinforcing sleeve layer 1, and the metal fiber reinforcing layer 2, the multi-layered structure improves the overall structural strength of this carbon fiber tube and meets the requirements of high-strength carbon fiber tubes.

[0021] A space is formed between adjacent plastic reinforcing strips 4, and the space is filled with a gypsum layer 5. The plastic reinforcing strips 4 make the pipe fitting more robust, stiff, flat and corrosion resistant. The gypsum layer 5 can prevent gaps from forming in the space and prevent the gaps from forming depressions. The added gypsum layer 5 can improve its structural strength.

[0022] The reinforcing sleeve layer 1 is made of ABS resin inner sleeve. ABS resin has good corrosion resistance, can remain stable in alkaline solution, is easy to process and mold, has high insulation resistance and arc resistance, improves insulation, and is lightweight.

[0023] The metal fiber reinforcing layer 2 is made of stainless steel fiber wire mesh. The stainless steel fiber wire mesh has high strength and high toughness, can withstand large tensile and bending stress, and is not easy to break. The stainless steel fiber wire has good corrosion resistance and can work continuously in acid and alkali environments, thus satisfying the advantage of improving the strength of the pipe fitting.

[0024] The outer brush layer 7 is composed of two layers of BOPP tape. Biaxially oriented polypropylene film (BOPP) is generally a multi-layer co-extruded film that can be printed with information such as company logo and product production date.

[0025] The outer surface of the plastic reinforcing strip 4 is wrapped with aramid fiber threads, which have high strength, high temperature resistance and flame retardancy, thereby improving the structural strength of the pipe fitting.

[0026] Working Principle: This high-strength carbon fiber pipe fitting consists of a double-layered first carbon fiber layer 3 and a second carbon fiber layer 6, a plastic reinforcing strip 4, a reinforcing sleeve layer 1, and a metal fiber reinforcing layer 2, employing a multi-layered composite structure. The plastic reinforcing strip 4 makes the pipe fitting more robust, rigid, flat, and corrosion-resistant. The gypsum layer 5 fills the gaps created by the gaps, preventing them from becoming sunken. The added gypsum layer 5 further enhances its structural strength. The reinforcing sleeve layer 1 uses an ABS resin inner sleeve, and the metal fiber reinforcing layer 2 uses a wire mesh composed of stainless steel fibers, possessing high strength and high toughness. In addition, the outer brush layer 7 is composed of two layers of BOPP tape, which can be printed with company logos, product production dates, and other information, improving the overall structural strength of this carbon fiber pipe fitting and meeting the requirements of high-strength carbon fiber pipes.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength carbon fiber tube, comprising an inner first carbon fiber layer (3) and an outer second carbon fiber layer (6), characterized in that: A plurality of plastic reinforcing strips (4) are composited between the first carbon fiber layer (3) and the second carbon fiber layer (6). A reinforcing sleeve layer (1) is fixedly composited between the first carbon fiber layer (3) and the reinforcing sleeve layer (1). A metal fiber reinforcing layer (2) is composited between the first carbon fiber layer (3) and the reinforcing sleeve layer (1). An outer brush layer (7) is composited on the outside of the second carbon fiber layer (6).

2. The high-strength carbon fiber tube according to claim 1, characterized in that: A space is formed between adjacent plastic reinforcing strips (4), and the space is filled with a gypsum layer (5).

3. The high-strength carbon fiber tube according to claim 1, characterized in that: The reinforcing sleeve layer (1) is made of ABS resin inner sleeve.

4. The high-strength carbon fiber tube according to claim 1, characterized in that: The metal fiber reinforcing layer (2) is made of a wire mesh composed of stainless steel fiber wires.

5. The high-strength carbon fiber tube according to claim 1, characterized in that: The outer brush layer (7) is composed of two layers of BOPP tape.

6. The high-strength carbon fiber tube according to claim 1, characterized in that: The outer surface of the plastic reinforcing strip (4) is wrapped with aramid fiber threads.