Your location£ºhome > News >

Rail product details

2016-12-13 18:37      Click£ºtimes
Rail product details
Rail is the main component of railway track. Its function is to guide the vehicle wheels forward, withstand the enormous pressure of the wheel, and transfer to the sleepers. The rail must provide continuous, smooth and minimum resistance to the wheels. In the electrified railway or automatic block section, the rail can also be used as a track circuit.
rail type
The type of rail is represented by the number of kilograms per meter of rail. There are 75kg/m, 60kg/m, 50kg/m, 43kg/m, 38kg/m and other kinds of rail used on Railway in our country.
Has the best bending performance of I-shaped section by section shape of rail, a rail, rail base and rail waist of three parts. In order to make the rail better bear the force from all aspects, to ensure the necessary strength conditions, the rail should be sufficient height, the head and the bottom should be sufficient area and height, waist and bottom should not be too thin. These types of rail, rail 38kg/m has stopped production, 60kg/m, 50kg/m rail on the main line and the dedicated line laying, laying rail general 43kg/m. For the heavy haul railway and the particularly busy section of the railway, the 75kg/m rail. In addition, in order to adapt to the needs of turnout, super large bridge and seamless lines and other structures, China's railway has also adopted a special section (and the central axis of the asymmetric. Now use more for the short special section of the rail, referred to as the AT rail.
Rail shape specification
The size of the rail length and other geometric dimensions and tolerances, light rail corresponding provisions of relevant standards by "8". Appearance quality (1) after rolling the rail should be straight, no significant bending and torsion. For the local light rail and the correction of bending and torsional deformation, rail end tilt, shall not exceed the prescribed standards. (2) the rail surface should be clean and smooth, no cracks, scarring, scratches and other defects; the end surface shall not have traces of shrinkage and interlayer. For the light rail surface defects and allowed by the geometrical extent of the existence of all, shall not exceed the stipulated standards.
The product has been exported to the United States, France, Canada, Indonesia, Russia, Vietnam, Australia, South Korea, Iran and other countries, access to customers.
TAG£º