博文

目前显示的是 三月, 2023的博文

How Rail Milling Maintains Railroads and Saves Cost

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Our rail milling trains for basic track maintenance are part of this effort, which we hope will reduce disruption to passengers and create better value for taxpayers. Replacing damaged rail is expensive, time-consuming and requires a large on-site workforce. We now have the option of using dedicated engineering trains to improve the existing railroad. Replacing track can cost hundreds of thousands of pounds. By switching to a rail milling train, we can make the rail as good as new for only 20% of the cost. Rail Machining How does it work? A rail milling train renews the rail by grinding away the damaged top layer of steel from the rail. It has wheels with hundreds of cutting tips that rotate to scrape off small pieces of rail. Doing this slowly means that the train will keep scraping off all the defects as it passes. The polished heads then ensure that the renewed rail provides a smooth ride for both passenger and freight trains. Rail value Existing rail maintenance strategies and prog...

The Role and Classification of Railway Sleepers

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The sleeper is the member on which the rails are arranged at the proper gauge. These sleepers are usually placed on ballast and are also called sleepers in some areas. When a train passes, the load on the rail is carried by these sleepers and distributed to the ballast. Steel Rail   supplier YONGYANG  shows you. The role of railroad sleepers The basic functions of railway sleepers are to To hold the rails firmly and maintain an even gauge Transfer the load from the rail to the ballast or to the ground. Reduce vibration from the rail. Provide longitudinal and lateral stability. Heavy Steel Rail Classification of railroad sleepers Wooden sleepers These are sleepers made of wood. Wooden sleepers have been used since ancient times. These are still widely used in some western countries. Hardwood or softwood can be used to make wooden sleepers. Benefits Wooden sleepers are cheaper and easier to manufacture than other sleepers. They are light in weight, so they can be easily transpor...

Double-headed Rail, Bull Head Rail and Flat Foot Rail

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The common railroad rail is divided into three kinds: double-headed rail, bullheaded rail, flat foot rail.   Heavy rail  supplier YONGYANG will introduce you. 1. Double-headed rail These rails are used in the early stage of railroad development. They are divided into three parts: upper table, network, lower table. The upper table and the lower table are the same and they are introduced to double the service life of the rails. When the upper table wore out, the rails could be inverted and flipped over on a chair so that the lower table could be used. However, this plan soon proved to be wrong, as the constant contact between the lower table and the chair caused the surface of the lower table to become rough and unable to run trains smoothly. As a result, this type of rail was almost obsolete. These rails now range in length from 20 to 24 feet. 2. Bull's Head Rail This type of rail consists of three parts: head, network, and feet. Steel is used to build these rails. The head is ...

Types and Structure of Railroad Turnouts

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A railway turnout,   also known as a railroad switch, is a connecting device in a modern railroad system. As an important part of the track, railway turnouts are used to allow trains to change tracks. There are three basic forms of railway turnouts: crossover, connection, and combination of crossover and connection. Railway turnouts are generally laid at stations and grouping stations. Railway turnouts are characterized by huge quantity, complex structure, short life, speed limit, low safety and high maintenance cost. Railroad turnouts, railroad curves and track connections are called "three weak links of the track". Railroad turnout As we all know, railroad turnouts can move trains from one track to another. How does a railroad switch work? It is mainly done by a component of the railroad switch. A turnout is a component that guides trains on the main track or siding. The turnout consists of rails, turnouts, some connectors and turnout equipment. In the past, the turnout was...

Guidance of I-beam Structure and Their Types

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I-beam   is a standard structural steel shape, which can be used as the key frame of various structures in the metal construction industry. For example, I-beams are used to build bridges, parking lots, skyscrapers, hospitals and so on. But what makes them such high-quality building materials? Structural beam design All structural beams have a basic design, including flanges (sometimes called legs) and webs (long vertical sections). The angle connecting the web and flange is called fillet. Flat flanges at the top and bottom of the beam prevent bending, and the web can resist blunt forces. These components are designed to withstand the maximum bending load with as few materials as possible and form the foundation to support the high axle load. All beams have depth, length and thickness. The depth of the beam is the distance from the top to the bottom. Width is the length of the horizontal flange. Thickness refers to the web and flange. Types of I-beam There are subtle differences bet...