博文

目前显示的是 十二月, 2019的博文

What Is Rail Wear?

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Rails are the main components of railway tracks. Its function is to guide the wheels of the rolling stock to advance, to withstand the tremendous pressure of the wheels, and to pass to the sleepers. Rails must provide a continuous, smooth and least resistant rolling surface for the wheel. In an electrified railway or automatic occlusion section, the rail can also serve as a track circuit. Rails can be divided into  Steel Crane Rail , heavy rails and light rails in kilograms per square meter. Rail wear mainly refers to the side wear and wave wear of the rail on a small radius curve. As for vertical wear, it is normal in general, and increases with the increase of the axle weight and the total weight. Improper setting of the track geometry will increase the vertical wear rate, which is to be prevented by adjusting the track geometry. 43kg Heavy Rail So what are the main types of rail wear? The  Crane Rail Suppliers  will come to tell you. (1) Side wear Si...

Material Analysis Of Rail Press Plate

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Find here details of  Heavy Steel Rail  on our website. Today we would like to talk about material analysis of rail press plate. The track plate is a type of plate used on the rails. The main material is cast steel. In fact, for cast steel, there are different materials to choose from. The rail pressure plate mainly plays a certain connection role to the rail. When the train is running on the rail, it will have a large impact. If there is no component to fix the rail, the rail will be deformed after the impact, or the train will derail. The existence of the track plate is very necessary, let's analyze the material used for the track plate. Heavy Steel Rail Cast carbon steel: cast steel with carbon as the main alloying element and containing a small amount of other elements. Less than 0.2% carbon is cast low carbon steel, carbon content 0.2% to 0.5% is cast medium carbon steel, and carbon content greater than 0.5% is cast high carbon steel. As the carbon content ...

Do You Know The Grinding Cycle Of The Rail?

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Find here details of  12m Heavy Steel Rail  on our website. Today we would like to talk a bout the grinding cycle of the rail. The rail grinding cycle refers to the measurement basis of the rail grinding time interval, which needs to be determined according to the line condition and maintenance purpose. The influence of different lines on train running stability, vibration and noise is different, and the grinding cycle is also different. Steel Rail At present, the setting of the rail grinding cycle in China mainly depends on the field experience of rail grinding. The development rule of rail disease is not used to guide the setting of the rail grinding cycle. Before the opening of the Beijing-Shanghai high-speed railway, the  Steel Rail  was pre-polished by high-speed grinding trains. After the opening, the precautions were polished twice a year and adjusted according to the regional passenger traffic. According to the tracking observations of the Beij...

What Are The Standards For Long Rail Welding?

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Find here details of  China Standard Steel Rail  on our website. Today we would like to talk about what are the standards for long rail welding. China Standard Steel Rail Rail welding is an important part of railway construction. Its quality directly determines the overall quality of the rail. Therefore, the welding of rails is generally valued during construction. Then, what are the precautions when welding long rails?  China Steel Crane Rail Manufacturer  would like to tell you. 1. The steel rail to be welded shall comply with the relevant technical conditions of the new line railway rail. The welding of the base rail shall be contact welding. The welding equipment operators must undergo professional training, be familiar with the quality standards of the rail welding head, and pass the examination of the relevant departments and obtain the operation. Certificate of conformity. 2. The operator must strictly implement the operation rules of the we...

Do You Know The Grinding Cycle Of The Rail?

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Find here details of  12m Heavy Steel Rail China  on our website. Today we would like to talk about the grinding cycle of the rail. The rail grinding cycle refers to the measurement basis of the rail grinding time interval, which needs to be determined according to the line condition and maintenance purpose. The influence of different lines on train running stability, vibration and noise is different, and the grinding cycle is also different. 12m Heavy Steel Rail Manufacturer As a  12m Heavy Steel Rail Manufacturer , we know that at present, the setting of the rail grinding cycle in China mainly depends on the field experience of rail grinding. The development rule of rail disease is not used to guide the setting of the rail grinding cycle. Before the opening of the Beijing-Shanghai high-speed railway, the rails were pre-polished by high-speed grinding trains. After the opening, the precautions were polished twice a year and adjusted according to the region...

The Role Of Rails In Railways

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Rails are the main components of railway tracks. Light rails are rails with a nominal weight of less than or equal to 30 kg per meter, such as  22Kg Steel Rail . The quality requirements of light rails are low, and only the chemical composition, tensile strength, hardness and drop weight test are required. The light rail is mainly used for laying temporary transportation lines and light locomotive lines in forest areas, mining areas, factories and construction sites. Light rail is a special steel product in metallurgical products. The rails are subjected to the weight and dynamic load of the train. The force is complicated, the rail surface is worn, the rail head is impacted, and the bending stress is also affected. The main forms of damage are: main wear It is the side wear and the lower strand crush, the wave wear caused by insufficient yield strength and the brittle fracture, spalling, falling off, rail head splitting, weld crack and so on caused by low toughness and plasticity...