In an exciting breakthrough in high-speed rail technology, a prototype of the CR450 high-speed train is undergoing rigorous tests on the Chinese mainland. This isn\"t just any train—it\"s being hailed as the world\"s fastest high-speed train. 🚄
The CR450 is engineered to decelerate from 400 km/h to a complete stop in just 112 seconds over 6,500 meters. Achieving such rapid deceleration requires a remarkably reliable braking system. The technical team has accomplished a major feat by developing an ultra-precise brake disc hub with tolerances as fine as 0.005 millimeters—about one-sixteenth the thickness of a human hair! 😲
After months of dedicated research and innovation, the team not only mastered machining the hub on a lathe but also streamlined production by eliminating an entire step, doubling efficiency compared to traditional grinding techniques. This breakthrough promises a new era of safety and performance in high-speed rail, inspiring future advancements for both the Chinese mainland and global rail networks.
Reference(s):
China tests world's fastest train with ultra-precise braking tech
cgtn.com
