In order to run speedy trains, the most important is the tracks. If rail tracks are longer at each junction the less maintanance.
Nippon Steel & Sumitomo Metal said its extra-long rails are more durable than shorter ones that need to be welded together and can offer passengers a quieter, more comfortable ride.
The company, the world's second-largest steelmaker after ArcelorMittal, has been making the 150-metre rails since 2002, but had to cut them to 25-metre or 50-metre units in order to send them to customers.
Train operators usually weld them together to recreate longer rails, often stretching to around 200 metres, to improve riding comfort and to reduce noise and oscillation, said Kayo Kikuchi, spokeswoman at the steelmaker.
Welding meant additional cost and maintenance for railway operators, she said.
"There has been the demand for longer rails, which would mean fewer welding points and less maintenance" for train operators, she said.- See more at: http://www.ntd.tv/en/news/world/asia-pacific/20140417/128787-japan-steelmaker-ready-to-ship-world39s-longest-rail-tracks.html#sthash.naXpAERH.dpuf
Nippon Steel & Sumitomo Metal said its extra-long rails are more durable than shorter ones that need to be welded together and can offer passengers a quieter, more comfortable ride.
The company, the world's second-largest steelmaker after ArcelorMittal, has been making the 150-metre rails since 2002, but had to cut them to 25-metre or 50-metre units in order to send them to customers.
Train operators usually weld them together to recreate longer rails, often stretching to around 200 metres, to improve riding comfort and to reduce noise and oscillation, said Kayo Kikuchi, spokeswoman at the steelmaker.
Welding meant additional cost and maintenance for railway operators, she said.
"There has been the demand for longer rails, which would mean fewer welding points and less maintenance" for train operators, she said.- See more at: http://www.ntd.tv/en/news/world/asia-pacific/20140417/128787-japan-steelmaker-ready-to-ship-world39s-longest-rail-tracks.html#sthash.naXpAERH.dpuf
http://www.ntd.tv/en/news/world/asia-pacific/20140417/128787-japan-steelmaker-ready-to-ship-world39s-longest-rail-tracks.html