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The role of  Heavy Rail  is to directly bear the weight of the train and its load transmitted by the wheels, and guide the train's running direction. Such a huge pressure first falls on the shoulders of the rail. It can be seen that the rail must have sufficient strength, stability and wear resistance. The I-shaped cross section of the rail is composed of the rail head, rail waist, and rail bottom. This seemingly simple I-beam has good strength, saves material, and has the best bending resistance. The type and strength of the rail are expressed in kg / m. The heavier the mass per meter of rail, the greater the load it will bear. In order to improve the capacity of the line, heavy rails are usually laid on the main lines. Theoretically, the longer the length of the rail, the better, which not only reduces the impact and wear of the joint, but also reduces the labor intensity of laying. However, due to production and transportation constraints, China's current standard rail

Heavy Rail  wavy wear refers to the wavy uneven wear on the top surface of the rail, which is essentially wavy crushing. Wave grinding will cause high wheel and rail power effects, accelerate the damage of locomotive vehicles and track components, and increase maintenance and repair costs. In addition, the severe vibration of the train will make passengers uncomfortable and will also threaten driving safety in severe cases. origin of. There have been serious waves in some of our country's freight routes. Its development speed is faster than side grinding, and it has become the main reason for changing rails. Heavy Rail Wave grinding can be divided into two types: short wave (or wave) and long wave (or wave). The ripple is a periodic irregularity with a wavelength of about 50-100mm and an amplitude of 0.1-0.4mm; the long wave is a periodic irregularity with a wavelength of more than 100mm and less than 3000mm and an amplitude of less than 2mm. Wave grinding mainly o

The railroad track is laid on gravel, why put it on gravel instead of directly on the ground. Today, the  China fish bolt wholesale  answers the question why the rails should be laid on the gravel. Let's take a look: 1. The load of the railway vehicle is transmitted through the steel rails, and the sleepers are dispersed on the surface of the roadbed through the diffusion of the track bed, playing the role of protecting the roadbed. 2. Provide longitudinal and lateral resistance to the rail, and maintain the correct geometry of the track, which is particularly important for seamless tracks. 3. It is used as rainwater. When the train passes by, it will reduce vibration and reduce the impact of floating dust. 4. Provide a certain degree of elasticity and damping, play the role of buffer and shock absorption. 5. The irregular arrangement of gravel can decompose the rail pressure in different directions. The track is more stable and will not deform. 6. Gravel can absorb

Rail splint connecting plate, commonly known as fish plate, plays a role in connecting rail joints. The rail splint is a fastener used to connect the rail to the rail. Generally speaking, it consists of a splint and matching fishtail bolts. It plays the role of connecting rails, facilitating subsequent disassembly and reuse, and also has the function of direct welding without connecting plates. The  Rail Fish  plate is also commonly referred to as a splint.  The fish plate is a connecting fastener used to connect the track and the track. It is divided into light rail, heavy rail and lifting rail. The middle of the screw hole is provided with a screw hole, and the upper and lower sides of the horizontal axis of the screw hole are provided with an upper working surface contacting the lower part of the rail head and a lower working surface contacting the upper part of the rail bottom. The rear of the upper working surface extends upward to form a transition section higher than th

The role of  Heavy Rails  is to directly bear the weight of the train and the load transmitted by the wheels, and guide the direction of the train. Such a huge pressure first fell on the shoulders of the railroad tracks. It can be seen that the steel rail must have sufficient strength, stability and wear resistance. The type and strength of rails are expressed in kilograms per meter. The heavier the mass of each meter of rail, the greater the load it bears. The rail weight of the world's first railway was 18 kg/m, and the heaviest rail in the United States was 77 kg/m. Generally speaking, in order to improve the passing capacity of the line, the railway industry is gradually phasing out small-weight rails, and the main lines are generally laid with heavy-duty rails of 60 kg/m or 75 kg/m. The rails of high-speed railways, high-speed trains and most trains are made of high-manganese steel. High manganese steel is hard and very wear-resistant. Even if rails are replaced by ru

In 20th May 2020, 80 tons of KP70 rail and KP100 Crane rail were loaded on a truck and arrived at Manzhouli warehouse and handed over to our Russia client’s transporter. Like our old friends, We supplied the Crane rail to our Russia Client for more than six years. And our client visited our mill every year. As china’s biggest manufacturer of steel rail, our main product includes, P8 steel rail, P12 steel rail, P15 steel rail, P18 steel rail, P22 steel rail, P24 steel rail, P30 steel rail, P38 steel rail, P43 steel rail, P50 steel rail, QU70 Crane rail, QU80 Crane rail, QU100 Crane rail, QU120 crane rail As per Russia GOST Standard, Chineses Standard’s QU70, QU80, QU100 and QU120 crane rail is same as Russia’s KP70, KP80, KP100, KP120 crane rail.