What are the characteristics of gauge baffles?

As a railway accessory, the gauge baffle plays a very important role on the entire railway line. The gauge baffle is a special-shaped cross-section steel, which is mainly produced by hot rolling. The production process is relatively complicated and the operation technology level is relatively high. The surface of the qualified gauge baffle is smooth, and the scale and burrs are cleaned and dried. There should be no protrusions on each contact surface. If there are protrusions, they should be cleaned. Two pits with a depth exceeding 2mm are not allowed on the same surface. .
Gauge baffles are used in my country's railway construction, mainly for prestressed concrete tracks of standard gauge straight line and radius ≥ 300m curved 50, 60kg/m rail lines, which play a very important role in driving safety. The gauge baffle is suitable for connecting 50, 60kg/m steel rails and prestressed concrete sleepers, prestressed wide concrete sleepers and integral ballast beds on straight lines of standard gauge railways and lines with a radius R greater than 300m.
When installing the gauge baffle, the nut torque is controlled at 80-120N.m for the straight section and the section with the curve R greater than 650M, and the nut torque is controlled at 120-150N.m for the section with the radius R less than 650m; The height of the top of the high rail is adjusted by the combination of different types of gauge baffles and baffle seats, and the adjustment amount of the 50kg/m rail is -8~+16mm. I hope that everyone can have a simple understanding of the gauge baffle through this information.