In daily life, we will find that the steel rails are kept smooth at all times, and professionals are also equipped to maintain the steel rails to keep them smooth. Then for such a smooth steel rails, why the train does not slip during operation What? Let's follow the editor to find out!
1. The surface of the steel rails looks smooth because the train runs on the friction and traction between the wheels and the steel rails, and the steel rails and wheels are all iron.
2. If the surface of the steel rails is not flat, the train will run very bumpy.
3. As for the fact that the steel rails never slip, this statement is not accurate. Slippage occurs when the surface of the steel rails freezes. There is a sandbox on the power wheels of the locomotive to prevent the train from slipping when it starts.
When the train brakes, all wheels are braked. This friction force is greater to avoid skidding. The train starts very slowly. When the speed increases, the overall train suffers little resistance, and the power used to maintain a constant speed is very small. There is no possibility of slipping. All in all, train slippage on steel rails is something that the railway department should try to avoid.
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Executive Editor: Zhang Wen / Editor: Linda Zhang