Effect of gauge widening of switch on dynamic characteristics of high-speed turnout;

Technical studies on high-speed turnouts for china railways

To provide a theoretic reference for the design of high-speed turnout,the contact force between wheel and rail and the vibration properties of a vehicle-turnout coupling system were analyzed by using the spatial coupling vibration theory for high-speed vehicle-turnout,and the structure irregularity of high-speed turnout was used as the vibration excitation.

Development of 50AT switch rail;

Geometric Structure Designing for Multysection Taper Pipe as Interim Part of High Pressure Steel Branch Pipe in Hydropower Station Designing;

Superficial view of machining features of ZGMn13 high-manganese steel;

This paper presents related technical matters about high-manganese steel frogs'deposit welding,in- cluding the characteristics of various deposit welding techniques,mechanical properties,weldability and defects of high-manganese steel frogs,deposit welding technology,the choice of welding machines and welding rods and its application in production.

The high chrome cast-iron added a variety of drib and microscale elements was used to make the flat hammer in overpressure turbine crusher,which can improve the wearing resistance and synthesize mechanical property of the products greatly,and the life of the products is 4 times longer than the former high-manganese steel.