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Understand the carbon fiber filament winding technology

Update: 2021-6-23  

什么是碳纖維 What is carbon fiber


Carbon fiber is specially made of carbon elements. Its carbon content varies with different types, generally more than 90%.


  • 耐高溫、耐摩擦

    Electrically and thermally conductive

  • 導電、導熱、耐腐蝕

    Strong resistance to high temperature, abrasion and corrosion


  • 外形有顯著的各向異性、柔軟、可加工成各種織物,沿纖維軸方向表現出很高的強度。碳纖維比重小,因此有很高的比強度

    Obvious anisotropy in appearance, soft, processable into various fabrics, and exhibit high strength along the fiber axis. Very high specific strength due to small specific gravity of carbon fiber.


  • 與樹脂、金屬、陶瓷等基體復合,制成結構材料。

    It can be combined with resin, metal, ceramic and other substrates to make structural materials.


What is carbon fiber reinforced epoxy resin composite


Specific strength and specific modulus of carbon fiber reinforced epoxy resin composite is the highest among existing structural materials. In areas with strict requirements on density, stiffness, weight and fatigue performance, carbon fiber composite materials are quite advantageous in occasions that require high temperature and high chemical stability.


The composite material is composed of carbon fiber and epoxy resin. It has become an advanced aerospace material due to its small specific gravity, good rigidity and high strength. For every 1 kg reduction in the weight of a space vehicle, the launch vehicle can be reduced by 500 kg. Therefore, advanced composite materials are widely used in the aerospace industry.

Advantages of carbon fibers and carbon-fiber composite materials

  • 高強度(鋼鐵的5倍)

    High strength (5 times of steel)

  • 耐熱(可耐2000℃以上的高溫)

    Heat resistant (can withstand high temperatures above 2000°C)

  • 抗熱沖擊性優異

    Excellent thermal shock resistance

  • 低熱膨脹系數

    Low thermal expansion coefficient

  • 熱容量小

    Small heat capacity

  • 比重小(鋼的1/5)

    Small specific gravity (1/5 of steel)

  • 優異的抗腐蝕和抗輻射性能

    Excellent anti-corrosion and anti-radiation performance

Carbon fiber winding process


Carbon fiber winding is a continuous molding method of composite materials, which is to wind continuous fibers or fabrics impregnated with resin glue on a core mold according to a certain rule, and then solidify and demold into composite products.

適用產品:碳纖、玻纖復合材料制品,如圓形管道、壓力罐、貯存罐等旋轉對稱形狀產品(電抗器,大型發電子定子, 高壓氣瓶,各種絕緣套管)

Applicable products: carbon fiber and glass fiber composite products, such as circular pipes, pressure tanks, storage tanks and other rotationally symmetric products (reactors, large electronic stators, high-pressure gas cylinders, various insulating sleeves)

特點:成型過程連續,一次性完成; 制品形狀和尺寸都能得到保證,在直徑方向的強度高。但需要專門的纏繞機器和輔助設備,生產成本較高

Features: Continuous molding process completed at one time; well guaranteed shape and size of the finished product, and high strength in diameter direction. However, relatively high production cost, specialized winding machines and auxiliary equipment are required.


Process classification (by different resin molding states)


Among all the processes, wet winding is the most common application. Dry winding is only applied in high-performance, high-precision and high-end aerospace technology.

碳纖維纏繞工藝原材料 Raw materials for carbon fiber winding process

  • 增強材料:纖維紗

    Reinforcing material: fiber yarn

  • 樹脂基體:樹脂和固化劑組成的膠體材料。樹脂主要是不飽和聚酯樹脂(民用管,罐),環氧樹脂(壓縮和層間剪切強度要求高的),雙馬來酰亞胺樹脂(航空航天制品)

    Resin matrix: colloidal material composed of resin and curing agent. Main resins include unsaturated polyester resin (civil pipes, tanks), epoxy resin (high compression and interlayer shear strength requirements), bismaleimide resin (aerospace products) 

  • 填料:加入后能改善樹脂基體的性能,如提高耐磨性,增加阻燃性,降低收縮率

    Filler: It can improve the performance of the resin matrix after being added. For example, it can achieve better abrasion resistance, higher flame retardancy and lower shrinkage.

碳纖維纏繞成型優點 Advantages of carbon fiber winding

  • 纖維強度高:可以按照產品受力狀況設計纏繞規律,可以充分發揮纖維強度

    High fiber strength: According to the force condition of the product, winding pattern can be designed to give full play to the strength of the fiber to achieve the best effect.

  • 比強度高:纖維纏繞壓力容器與同體積、同壓力鋼制容器比,重量減輕40%-60%

    High specific strength: The weight of the fiber-wound pressure vessel is 40%-60% less than the steel vessel of the same volume and pressure.

  • 可靠性高:易實現自動化,機械化生產。工藝條件確定后,纏出來產品質量穩定,精確

    High reliability: Easy to realize automation and mechanized production. After the process conditions are determined, the quality of the wrapped product is stable and accurate.

  • 生產效率高:自動化生產,纏繞速度快(240m/min)

    High production efficiency: automatic production, fast winding speed (240m/min)

  • 成本低:同一產品可合理選配若干材料(包括樹脂,纖維和內襯),使其再復合,達到最佳經濟技術效果

    Low cost: The same product can be equipped with several materials (including resin, fiber and lining) to make it recombined to achieve the best economic and technical effect.

碳纖維纏繞成型缺點 Disadvantages of carbon fiber winding

  • 纏繞成型適應性小,不能纏任意結構形式制品,特別是表面有凹的制品

    Winding process is not adaptable to arbitrary structure of products, especially the products with concave surface.

  • 纏繞需要纏繞機,芯模,固化加熱爐,脫模機,熟練工人

    Require winding machine, mandrel, curing furnace, demoulding machine and skilled workers.


Nantong Synasia New Material Co., Ltd. has more than ten years of valuable experience specializing in the production of various specialty epoxy resins. In the next article, we will focus on introducing Synasia’s patented resin product S-186 which is perfectly suitable for carbon fiber winding application. Let's see you in the next article! 

上一條: Take you to understand UV curing coatings in one minute 下一條: Synasia resin S-186 applied in carbon fiber reinforced composites

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