yyrail

Heavy rail , or heavy-duty rail, is different from light rail. It is a track for heavy vehicles. It represents not the weight of the monorail track itself, but it is related. Vehicle weight is divided into light rail and heavy rail. Track width is divided into wide rail, standard rail, narrow rail, heavy rail applications are mainly national standard cross-area railroads (including high-speed railroads, heavy railroads) , intercity railroads, urban areas. Rail weight Steel rail specifications are expressed in net kilograms per meter of length. Steel rail per meter nominal weight of more than 60 kg belongs to heavy rail, heavy rail is divided into two kinds of ordinary rail and crane rail. Ordinary rail is the laying of railroad main line, special line, corner and tunnel rail. Among them, the standard rail length of 25 meters and 50 meters or 500 meters high speed rail continuous welding, laying curve curve rail, slightly shorter length, 24.96 meters, 50.92 meters, etc., high speed rai...

Introduction of steel rails Steel rail is the main component of railroad track. Its function is to guide the wheels of rolling stock forward, to withstand the tremendous pressure of the wheels, and to transfer it to the rail sleepers. The rail must provide a continuous, smooth and minimal resistance rolling surface for the wheels. In the electrified railway or automatic blocking section, steel rail can also be used for track circuit. The stress conditions of steel rails are complex, in the process of use, the rail end part of the periodic impact load. Under the action of the train wheel, the rail tread has contact stress, rolling friction in locomotive operation and sliding friction when braking. The damage to the rail is mainly in the form of fracture, tread wear, etc. In order to be able to adapt to the railroad transport high speed, heavy load needs, as well as in order to ensure the train high speed in the operation of the smoothness, comfort, safety and high operational efficien...

Light Steel Rail as a whole engineering structure, the track is laid on the subgrade, plays a guiding role in train operation, and directly bears the huge pressure of rolling stock and its load. Under the action of the train's driving power, its various components must have sufficient strength and stability to ensure that the train runs safely, smoothly and uninterrupted at the maximum speed specified. Light Steel Rail The type of light rail rail is expressed in kilograms per metre of rail mass. There are several Heavy Steel Rails used on Chinese railways such as 75kg / m, 60kg / m, 50kg / m, 43kg / m, and 38kg / m. The cross-sectional shape of the rail adopts an I-shaped cross-section with the best bending resistance performance. It has a rail head, 43G, 50G, 60G rail cross-section diagrams, a rail waist and a rail bottom. In order to make the rail better withstand the forces from all aspects and ensure the necessary strength conditions, the rail should have sufficient height, i...

Spring steel , commonly referred to as annealed spring steel, is a so-called "universal" steel. Because of the wide range of uses and applications for this metal, Mead Metals offers a wide variety of spring steel products. Properties of Spring Steels Spring steel is known for its high yield strength, elasticity and flexibility. It has unique forming, shaping and post-treatment capabilities. These physical properties make spring steel a versatile steel. Three types of annealed spring steels are available, which are distinguished by their carbon content. AISI 1050 has the lowest carbon content, making it easy to form. It can also be heat treated to increase hardness. AISI 1074 and 1075 have a medium carbon content spheroidized to increase their formability and can be heat treated. AISI 1095 has the highest carbon content of any spring steel we carry. It can be heat treated and has the highest elasticity and fatigue values. Common spring steel products As a general purpose steel...

   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...

The technology principle The track is subject to variable vertical, transverse and longitudinal static and dynamic loads, which are transferred from the rail to the roadbed by sleeper and roadbed. By means of mechanical theory, the stress and strain generated by each component of the track under various load conditions are analyzed and studied to determine its bearing capacity and stability. Track mechanics analyses the force and deformation of track structure under the action of locomotive and vehicle, as well as the influence of track structure diseases on track damage and train operation, so as to provide a basis for the design of track structure and the formulation of track management standards. The tracks 1.The structure The track is composed of trackbed, sleeper,  rail , connecting parts, anti-climbing equipment, and turnout. 2.Railway track Originally cast rails, developed into i-rails, the standard gauge (see track geometry) used by most of the world's railways in the 1980s...

Crane track is a combined field of mechanical engineering and civil engineering. Generally speaking, mechanical engineers are only concerned with operational equipment issues, and civil engineers are only concerned with the safety and reliability of track construction. As for the part in between, crane tracks always have some problems due to the lack of professional engineers and technicians. At present, most crane track fixing schemes are designed according to the standard drawings of railway tracks. The traditional way of rail connection is to use rail connecting rods, but crane rails are better to use rail fastening system. In fact, with the update of technology, the crane tonnage is getting bigger and bigger, and the working frequency is getting higher and higher. The traditional rail fastening system can not adapt to the requirements of crane development, so it is important to understand the crane rail fastening system. In China, the traditional rail fastening system has low inves...