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coupler
Railway Draft Gear: Function, Types and How to Choose
A railway draft gear is the energy-absorbing unit mounted behind a railcar coupler. It cushions the buff (compression) and draft (tension) forces between cars during coupling, braking, and acceleration, protecting the car…
Exploring the mystery of the EMU and mine car couplers: the “invisible bond” of the mechanical world
——Hardcore popular science from structure to operation In the steel-cast rail network, EMUs are speeding at a speed of 300 kilometers per hour, and heavy-load mine trains are slowly climbing the slope…