Structural Classification Of Steel Track


Steel Track Type


The type of Steel Trackis expressed in kilograms per meter of Steel Track mass. There are several kinds of Steel Tracks used on Steel Trackways in my country, such as 75kg/m, 60kg/m, 50kg/m, 43kg/m and 38kg/m.

The cross-sectional shape of the Steel Track adopts an I-shaped cross-section with the best bending resistance, which is composed of three parts: Steel Track head, Steel Track waist and Steel Track bottom. In order to make the Steel Track better withstand the forces from all aspects and ensure the necessary strength conditions, the Steel Track should have sufficient height, its head and bottom should have sufficient area and height, and the waist and bottom should not be too thin.

Among the above various types of Steel Tracks, production of 38kg Steel Tracks has been stopped, 60kg Heavy Steel Railand 50kg Heavy Steel Rail are laid on the main trunk lines, and 43kg Steel Tracks are generally laid on station lines and special lines. For heavy-duty Steel Trackways and particularly busy sections of Steel Trackways, 75kg/m steel Steel Tracks are laid.
In addition, in order to meet the needs of structures such as turnouts, extra-large bridges and seamless tracks, my country's Steel Trackways have also adopted special section (I-shaped asymmetrical to the central axis) Steel Tracks.

60kg Heavy Steel Rail
60kg Heavy Steel Rail


Steel Track length


The standard length of steel Steel Tracks in my country is 12.5m and 25.0m. Extra-heavy Steel Tracks and Heavy Steel Rail use 25.0m standard length Steel Tracks, and other types of Steel Tracks can use 12.5m25.0m standard length Steel Tracks.

The Interim Technical Conditions for 60kg/m Steel Tracks on a 250km/h Passenger Dedicated Line stipulates that the standard Steel Track length of a 250km/h passenger dedicated line (taking into account freight) is 100m. There are three types of curvilinear shortened Steel Tracks that are 40, 80, and 120mm shorter than the 12.5m standard Steel Track, and three types that are 40, 80, and 160mm shorter than the 25.0m standard Steel Track.

Appearance Quality


(1) The rolled steel Steel Track should be straight without significant bending or twisting. The local bending and torsion of light and heavy Steel Tracks, as well as the amount of corrective deformation, and the inclination of Steel Track end faces, shall not exceed the standard requirements.

(2) The surface of the Steel Track should be clean and smooth, free of defects such as cracks, scars, scratches, etc.; there should be no shrinkage marks and interlayers on the end surface. The allowable defects on the overall surface of the light and heavy Steel Track and the degree of their geometric quantity shall not exceed the standard.

评论

发表评论

此博客中的热门博文

Steelmaking Process (2)

图片
8. Refining period: The process of steelmaking is carried out by slagging and other methods to remove some elements and compounds that are harmful to the quality of steel by chemical reaction into the gas phase or discharged into the slag to remove it from the molten steel. period. 9. Reduction period: In the ordinary power electric arc furnace steelmaking operation, the time from the completion of the slag slag to the tapping is usually called the reduction period. 10. Furnace refining: The steelmaking process of refining the molten steel in the steelmaking furnace (converter, electric furnace, etc.) to another vessel for refining, also called secondary metallurgy. The steelmaking process is therefore divided into two steps: primary refining and refining. 11. Steel liquid agitation: Stirring of molten steel through refining beyond the furnace. It homogenizes the molten steel composition and temperature and boosts metallurgical reactions. Most metallurgical reaction procedures a...
阅读全文

Crane rail installation - Standards and procedures

图片
   Introduction to crane track installation With the rapid development of modern logistics, greater demands are being placed on the logistics management of machinery and equipment. This is not just about transporting bits. Once heavy machinery or equipment has arrived at a facility, it also needs to be picked up, moved and set up appropriately. For these purposes, cranes come in very handy. As cranes play an important role, crane track installation also plays an important role in these industries.  Crane track installation Techniques and standards The accurate installation of crane rails is a primary requirement for this type of heavy machinery and related industries. Selecting the most suitable track and securing it is a key issue in ensuring the integrity and longevity of the crane track system. At Yongyang , we have a reliable, skilled and experienced team to help you find the more suitable crane rails. But more on that later. Now let's talk more about crane rail inst...
阅读全文

Standard Rail: Railcar Repair | Railcar Storage | Transloading

图片
Standard Rail   is at the forefront of innovation in the railway industry, offering comprehensive solutions for railcar repair, storage, and transloading. With a commitment to excellence and efficiency, Standard Rail provides state-of-the-art facilities and expert services to meet the diverse needs of its customers.  Railcar Repair Services: Standard Rail specializes in providing top-notch railcar repair services to ensure the safety, reliability, and compliance of railcars. Its certified technicians and state-of-the-art facilities offer a wide range of repair and maintenance solutions, including: Mechanical Repairs: Comprehensive mechanical repairs for railcar components such as wheels, brakes, couplers, and suspension systems. Structural Repairs: Welding, fabrication, and structural repairs to address damage or wear on railcar bodies, frames, and undercarriages. Tank Car Services: Specialized services for tank cars, including cleaning, inspection, lining, and pressure testin...
阅读全文