Casting Rail Tie Plate

LT Rail Fastener factory start to produce Rail Tie Plate since 1976 years,The casting tie plate material using QT450-10 and QT500-7.

Rail Tie Plate,also called rail base plate.is one of the important parts in the track structure and plays an important role in the damping of the Rail Fastener system.With the development of heavy-haul railway transportation, axle load is increasing day by day. While the rail is gradually becoming heavier, higher requirements are put forward for the performance of the tie plate, so as to obtain good vibration damping performance, impact resistance and long service life of the tie plate.

The producement of the Rail Tie Plate as follows:

The railway cast iron tie plate is produced by the vanishing mold method and smelted in 60kg intermediate frequency electric furnace. The vacuum degree during pouring is kept at 0.03mpa and the pouring temperature is 1580℃.Its chemical composition W was 0.46%C,0.23%Si,0.59%Mn,0.015%S and 0.024%P.After the casting is packed, it is cleaned by shot peening and then annealed.The heat treatment process is as follows: heating temperature 850℃;The holding time was 2h and cooled with the furnace to room temperature (12h in total).