Carbon fiber black technology used in the 24th Beijing Winter Olympics

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The 24th Beijing Winter Olympics has come to a perfect end 

The ice and snow brought great surprises to the world 

All kinds of new materials such as carbon fiber play an amazing role 

Today we are going to learn more together

 

1 There is a big world hidden in the small torch

 

On February 2, the launching ceremony of the Winter Olympic torch relay was grandly held in Beijing. The "Flying" shape of the Olympic torch is very dynamic and dynamic. It is "bottomed out" with auspicious cloud patterns. From bottom to top, it gradually transits from auspicious cloud patterns to paper-cut style snowflake patterns, rotating and rising, like ribbon dancing. It is worth mentioning that the shell of "Flying" also contains "black technology". It is not only fire-resistant and high-temperature resistant, but also can be used in extremely cold weather. The mystery of how to withstand the double test of "ice and fire" lies in a new material - carbon fiber. After three-dimensional knitting, the carbon fiber tow is woven into the torch shell like "knitting a sweater", without any seams and pores, and the whole shape is integrated.

 

At the moment of contact with "flying", the first evaluation given to it by the Winter Olympic Organizing Committee was that it was light and strong. It couldn't be broken by falling. Another is that the weather during the torch relay in winter is very cold, and the hand feeling of traditional metal materials is not very good. Composite materials can solve this problem and avoid the cold grip.

2 Carbon fiber hydrogen energy products shine

 

In this winter Olympics, carbon fiber hydrogen energy products shine brightly: hydrogen fuel cell vehicles equipped with hydrogen storage cylinders successively serve the two competition areas of Yanqing and Zhangjiakou in Beijing in batches to help the 2022 Winter Olympics; The first batch of hydrogen commuter buses jointly developed by Yutong group and SINOCHEM hydrogen energy Co., Ltd. use 165L hydrogen storage cylinder group, and the designed mileage can reach 630km.

Hydrogen energy products not only serve the commuting field of the Winter Olympics, but also provide logistics and transportation services inside and outside the competition area with the logistics and insulation vehicle with 165L hydrogen storage cylinder group, while the hydrogen fuel cell police patrol vehicle, fire patrol vehicle and postal vehicle use 53L hydrogen storage cylinder. In the field of hydrogen fuel cell vehicles, the improvement of on-board hydrogen storage technology will be a key breakthrough in the development of hydrogen fuel cell vehicles in the future. In the whole on-board hydrogen supply system, hydrogen storage bottle is one of the key components. Among them, carbon fiber filament wound composite hydrogen storage cylinders are highly expected.

3 China domestic snowmobile equipment from "None" to "Yes"

 

Snowmobile is a traditional project in the Winter Olympics. Behind the snowmobile is the hard strength of China's Olympic scientific research. To this end, the Institute of aerospace materials and technology has set up a special working group. With the support of the Ministry of science and technology and the winter sports center of the State Administration of sports, it has set up the R & D project of "key technologies of carbon fiber composite high-performance equipment in winter", which has broken through the integrated design of shape and structure with low wind resistance and high reliability, high impact carbon and fiberglass hybrid composites A series of key technologies such as integrated high-quality molding of complex wing body fusion structure, and finally completed the design of the principle prototype of the first domestic double snowmobile, the development of special material system, product R & D and manufacturing. At last year's China International composite industry technology exhibition, the Institute of aerospace materials and technology brought the first generation of snowmobile to the exhibition area of innovative products for display. The snowmobile weighs about 180 kg and is made of carbon fiber composite and alloy materials, realizing the breakthrough of domestic snowmobile equipment from "None" to "Yes".

4 China domestic 3D printed carbon fiber speed skates help the Winter Olympics

 

In order to change the situation that the world-famous carbon fiber speed skating shoes are monopolized by European and American companies, Yang Jintian, a professor of sports biomechanics at Hebei University of economics and trade, and his scientific research team have established a database of Speed Skaters' foot shape and sole, and a 3D scanning and printing system of sole. It took more than one year to successfully develop the first generation of high-performance carbon fiber composite speed skates. Compared with China's high-end speed skating skates, the weight of carbon fiber skates is reduced by 3% - 4%, and the peel strength of skates is increased by 7%.

 

Professor Yang Jintian said that the team will promote the iteration of skates and strive to enter the industrialization stage as soon as possible. He also announced that the second generation of domestic skates will be able to compete with similar foreign products, realize the "curve overtaking" of imported brands, and enhance the "technical strength" for the development of China's ice and snow sports.

5 Carbon fiber ice hockey sticks appear in the Winter Olympics

 

The carbon fiber ice hockey stick reduces the fluidity of the fluid forming agent below the preset threshold by mixing the fluid forming agent when making the carbon fiber cloth, and controls the quality error of the carbon fiber cloth within ± 1g / ㎡ - 1.5g / ㎡; Put the carbon fiber Club base material made of carbon fiber cloth into the mold, control the inflation pressure of the mold to 18000kpa to 23000ka, and heat the carbon fiber club base to form the ice hockey club.

 

The fluid forming agent is attached to the surface of the carbon fiber cloth, which increases the toughness of the carbon fiber cloth on the one hand, and improves the overall structural strength of the club on the other hand. The carbon fiber ice hockey club is not easy to crack or break, so as to ensure the firmness and durability of the ice hockey club.

6 Carbon fiber heating cable

 

Walking into Zhangjiakou Winter Olympic Village (winter Paralympic Village), the concept of Green Olympics can be seen everywhere. In the athlete's apartment, the sun shines into the room through the French window, which is warm. According to reports, carbon fiber heating cables are laid under the floor of the athletes' apartment room. Electric heating is used in winter to directly convert electric energy into heat energy and reduce heat loss. All the electric energy used comes from wind power generation in Zhangjiakou, which is clean, renewable and environmentally friendly.

 

The staff of the operation Department of the Olympic Village said that Zhangjiakou Winter Olympic village was built in accordance with China's highest three-star standard of green construction. By taking a series of land-saving, energy-saving, material-saving and water-saving measures, the Winter Olympic village can not only meet the concept of Green Olympics, but also fully meet the needs of the Winter Olympic Games.

 

Materials change the world

Materials make us look forward to the future

Our athletes are assisted by new materials

Achieved the best results in history

Have an unforgettable event

 

Source: China composite materials group. Some pictures are from the Internet