Discontinuous rail seamless rail effect
The rail welding seamless rail is 25 meters long up into several hundred meters or even thousands of meters long, and then put on the roadbed, seamless rail gap of 11 mm between each segment. Seamless rail is seamed, will also be affected.
Seamless rail is also afraid of thermal expansion, cold contraction, but better than ordinary steel pipe. Thermal expansion and contraction are the laws of physics. When heated, the distance between molecules increases, and the rails extend. Similarly, cold contracts.
