Watching the Winter Olympics really increased a lot of knowledge. I didn't know what short track speed skating was before, but now I finally see the short track speed skating project, which is really wonderful. Sigh that every athlete's skating speed is very fast. I also learned some knowledge that I didn't know in short track speed skating. Like the equipment used by athletes, the shoes worn by athletes are called roller skates.

The material of roller skates is steel plate or light alloy, not steel blade. The earliest skates were mainly imported from abroad, because high-end skates need powder metallurgy steel. The molten steel is atomized with high-pressure inert gas or high-pressure water to obtain fine steel powder, then pressed at high temperature and high pressure, and then sintered into high-speed steel. At present, the speed of short track speed skating is so fast, which also depends on the improvement of skates technology. The improvement of equipment has also greatly improved the skating speed of athletes. ? In short track speed skating, people are injured by skates from time to time. 20 10 China Han Jialiang was scratched by a Korean skater in the Shanghai short track speed skating competition in the World Cup, and was immediately bloody and carried out on a stretcher. 20 19 During the warm-up before the short program of Saitama Flower Skating World Championships, American Maria collided with South Korean Lin Xiu, and South Korean Lin Xiu's calf was cut by American skates.

Therefore, short track speed skating is also a very dangerous project, with such high speed and sharp skates. However, we can all see that athletes are fully armed when they go out, instead of listening to the explanation of the stadium, and they can't tell who is who. But it is worth knowing that athletes are equipped now, and the clothes they wear are made of special fibers. This kind of clothes is cut-proof, and the material is the same as bulletproof vest. Ice skates can't be cut. At the same time, short track speed skaters also need to wear safety helmets, cut-resistant gloves or mittens made of leather, or synthetic gloves without wool; Leggings made of cutting-proof and pricking-proof durable materials; A padded or padded hard-shell kneepad; All athletes must wear neck protectors approved by the International Skating Association. These materials are anti-cutting materials, which also shows that the skates are sharp, and the upgrading of various equipment, such as helmets and neck protectors, can avoid life-threatening to the greatest extent. This also greatly protects the safety of athletes.