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    Home > Chemicals Industry > China Chemical > Domestic polymer carbon fiber is "icing on the cake" for Winter Olympic athletes

    Domestic polymer carbon fiber is "icing on the cake" for Winter Olympic athletes

    • Last Update: 2022-03-06
    • Source: Internet
    • Author: User
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    [ Hot Focus on Chemical Machinery Equipment Network ] Carbon fiber is a high-strength and high-modulus fiber with a carbon content of more than 90%.
    It has the advantages of high temperature resistance, friction resistance, thermal conductivity, electrical conductivity and corrosion resistance.
    The structure is preferably oriented along the fiber axis and therefore has high strength and modulus along the fiber axis
    Carbon fiber not only has the inherent characteristics of carbon materials, but also has the soft and processable type of textile fibers.
    It is a new generation of reinforcing fibers

    Chemical machinery and equipment network hotspots focus on chemical machinery and equipment
    Carbon fiber is an important strategic new material.
    Starting from the "Eleventh Five-Year Plan", the Ministry of Science and Technology has continued to support it to solve the bottleneck of "stuck neck" of cutting-edge defense application raw materials
    China's Chang'e-5 lunar exploration, Tianwen-1 Mars exploration, and space station construction use new rockets Long March 5 and Long March 7, and many sections have adopted new carbon fiber composite materials developed by China Aerospace to ensure that the rocket Larger load, more secure and reliable


    Carbon fiber can not only be used in the manufacture of high-tech materials such as aerospace, but also in this Beijing Winter Olympics, polymer carbon fiber also shines brightly
    Due to the characteristics of light weight and high strength, carbon fiber is undoubtedly one of the important materials for many ice and snow competition equipment and living facilities in the Winter Olympic Village
    At the same time, not only applying carbon fiber to the aerospace field, but also adding carbon fiber to China's self-produced sports equipment, it also provides a successful case for the diversity of carbon fiber


      my country's first carbon fiber snowmobile breaks through technical problems

      The technology and craftsmanship of high-end ice and snow sports equipment such as snowmobiles were previously monopolized by foreign countries
    The "Science and Technology Winter Olympics" project of the Ministry of Science and Technology of China has set up the "Winter Project Carbon Fiber Composite High-performance Equipment Key Technology Project".
    Since November 2019, the project team has cooperated with each other to overcome the weak foundation and the epidemic.
    Influenced by , the first domestic carbon fiber snowmobile was developed in January 2021
    This first domestic carbon fiber snowmobile fills the gap of carbon fiber snowmobiles in China, and has achieved a breakthrough from "0" to "1"


      The domestic snowmobile combines aerospace wind tunnel experiment and structural design technology to optimize the system and realize a streamlined rudder surface body.
    Compared with the international similar products, the wind tunnel test results reduce the wind resistance coefficient by 8%
    And the project team used the T800 carbon fiber composite material of domestic aerospace aircraft.
    The density of this material is only 1/5 of that of steel, but its strength is twice that of steel, which can greatly reduce the weight of the snowmobile body and reduce the snowmobile body weight.
    The center of gravity makes the snowmobile slide smoothly


      Not only that, in order to ensure the safety of the snowmobile, the project team also adopted the autoclave technology of aerospace.
    By heating and pressurizing the car body, the originally soft composite material intermediate will be completely cured and become a hard and strong car body
    The inspection result under autoclave technology is less than 1% defect


      The advantages of carbon fiber composite materials lie not only in light weight and design freedom, but also in high fatigue strength and good damage safety performance
    After millions of times of fatigue, the strength retention rate of carbon fiber composites is still 90%, which is much higher than 40% of steel, and the fiber breakage in the composite material will not cause a chain reaction and catastrophic sharp damage, which is very important for athletes in competition.


      Speed ​​skates use domestic 3D printed carbon fiber

      In the past, the custom-made skates for speed skaters mainly relied on the collection of plaster casts of athletes' feet, and there were problems such as complicated collection process, low efficiency and long time to manufacture skates
    The combination of 3D scanning technology and sole 3D printing technology can solve the above problems very well
    The project collects a large number of speed skaters' sole data, and repeatedly trims, compares and verifies the data, and finally achieves a high degree of agreement between the sole data and the manufacturing of skates


      At the same time, the customization of speed skating shoes also uses high-performance carbon fiber composite materials, which not only improves the performance of the skates, but also realizes lightweight production, which helps to improve the athletic performance of athletes
    Compared with domestic high-end speed skating shoes, the weight of carbon fiber skates is reduced by 3%-4%, and the peel strength of the skates is increased by 7%


      Carbon fiber and aerospace resin make ultra-light carbon fiber hockey sticks

      The carbon fiber club is a process method that mixes the fluid molding agent when making the carbon fiber cloth, and reduces the fluidity of the fluid molding agent to below the preset threshold, so that the error of the carbon fiber cloth can be controlled within ±1g/㎡ to 1.
    5g/㎡ room
    Then, the carbon fiber cue base made of carbon fiber cloth is put into the cue mold, and the inflation pressure of the mold is controlled at 18000Kpa to 23000Ka, and the carbon fiber cue base is heated to make the ice hockey stick


      The hockey stick using aerospace resin and carbon fiber not only ensures the toughness of the hockey stick, but also improves the overall structural strength of the stick because the fluid molding agent is attached to the surface of the carbon fiber cloth, making it difficult for athletes to swing when swinging.
    Cracked or broken clubs


      (Reference source: Science and Technology Daily, Beijing Youth Daily)

      Original title: Domestic polymer carbon fiber is the "icing on the cake" for the Winter Olympic athletes
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