The steel rail is the main component of the railway track. Its function is to guide the wheels of locomotives and vehicles to move forward, bears tremendous pressure from the wheels, and pass it on to the pillow. The steel rail must provide the wheel with the smallest rolling surface of continuity, smoothness, and resistance.
In the electrified railway or automatic occlusion section, the steel rail can also be used as a rail circuit. The section shape of the rails is composed of a section of the type of work with the best bending performance. It has three parts: head, rail waist, and bottom of the rail. In order to enable the steel rails to better bear the force from all aspects and ensure the necessary strength conditions, the steel rail should have sufficient height, its head and bottom should have sufficient area and height, waist and bottom should not be too thin.
In the electrified railway or automatic occlusion section, the steel rail can also be used as a rail circuit. The section shape of the rails is composed of a section of the type of work with the best bending performance. It has three parts: head, rail waist, and bottom of the rail. In order to enable the steel rails to better bear the force from all aspects and ensure the necessary strength conditions, the steel rail should have sufficient height, its head and bottom should have sufficient area and height, waist and bottom should not be too thin.
Appearance Quality of Steel Rails
(1) The rolled steel rails should be straight, and there must be no significant bending and reversing. For the local bending and reversing and correction variable volume, the tilt of the rail surface, etc., shall not exceed the standard regulations.
(2) The surface of the steel rail should be clean and smooth, and there must be no defects such as cracks, scars, scratches, etc. There must be no traces of pores and mezzanine.
(2) The surface of the steel rail should be clean and smooth, and there must be no defects such as cracks, scars, scratches, etc. There must be no traces of pores and mezzanine.
Features of Steel Rails
The mechanical characteristics of the steel rails are selected to withstand the localized stresses. Components that can resist strain and stretching are needed for situations involving rapid acceleration and deceleration. Lubricants help to lessen track mechanical wear in tightly bent areas. In locations where excessive friction is anticipated, oil or grease delivery units are positioned along the rails.
Long-distance freight tracks are best suited for head-hardened steel rails because they provide additional strength and resistance to fatigue.
Compared to many high-strength alloys, which become brittle and prone to fracture at low temperatures, standard steel structures perform better.
Corrosion must get extra attention due to coastal and marine circumstances. A recommended standard-grade steel element is paired with protective coating, polished finishes, and galvanization to decrease maintenance and repair expenses.
Long-distance freight tracks are best suited for head-hardened steel rails because they provide additional strength and resistance to fatigue.
Compared to many high-strength alloys, which become brittle and prone to fracture at low temperatures, standard steel structures perform better.
Corrosion must get extra attention due to coastal and marine circumstances. A recommended standard-grade steel element is paired with protective coating, polished finishes, and galvanization to decrease maintenance and repair expenses.