博文

目前显示的是 十一月, 2019的博文

What Are The Steels Classified?

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Find here details of  China Standard Steel Rail  on our website. China Standard Steel Rail The following points are shared by professional  China Standard Heavy Steel Rail Manufacturer : (1) Cast steel Cast steel refers to a steel casting produced by a casting method. Cast steel is mainly used to make parts that are complex in shape, difficult to forge or cut, and require high strength and plasticity. (2) Forged steel Forged steel refers to various forgings and forgings produced by the forging method. Forged steel parts are of higher quality than steel castings and can withstand large impact forces. Plasticity, toughness and other mechanical properties are also higher than steel castings. Therefore, for some important machine parts, forged steel parts should be used. (3) Hot rolled steel Hot rolled steel refers to various hot rolled steel materials produced by a hot rolling method. Most of the steel is rolled by hot rolling. Hot rolling is commonly used...

Mechanical Properties Of Angle Steel

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Find here details of  Angle Bar . We are a professional  Angle Bar Supplier . If you want to know  Angle Bar Price , welcome to contact us. Angle Bar Angle steel, commonly known as angle iron, is a long strip of steel that is perpendicular to each other on both sides. There are equal angle steel and unequal angle steel. The sides of the equiangular steel are equal in width. The specifications are expressed in millimeters of side width × side width × side thickness. For example, "∟30×30×3" means an equilateral angle steel with a side width of 30 mm and a side thickness of 3 mm. It can also be expressed by model number, the model number is the number of centimeters of the side width, such as ∟3#. The model does not indicate the size of the different side thicknesses in the same model. Therefore, the side width and thickness of the angle steel are filled in the contract and other documents, so as to avoid the model number. The specification of hot rolled equal...

What Are The Classification Of Rail Damage By Light Rail?

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Find here details of  Steel Track . We are a professional  Steel Crane Rail Manufacturer . If you need any information about  Heavy Steel Rail , feel free to contact us. Heavy Steel Rail Light rails are required to classify rail damage for statistical and analytical rail damage. According to the position of the damage on the rail section, the appearance of the damage and the cause of the damage, it is divided into nine types of 32 kinds of injuries, which are classified by two digits. The ten digits indicate the location and state of the damage, and the single digit indicates that The cause of the injury. The specific content of the rail damage classification can be found in the "railway engineering technical manual (orbit)". Rail breakage refers to one of the following situations: the full section of the rail is broken into at least two parts; the crack has penetrated the entire rail head section or the rail bottom section; the top surface of the rail ...

How To Control Welding Stress During Rail Welding?

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Here is  12 Kilogram Steel Rail Exporter  talking about how to control welding stress during rail welding. If you need any information about  8 Kilogram Steel Rail , feel free to contact us. As rail speeds and axle loads continue to increase, this also requires  Steel Rail  to have greater stiffness and better wear resistance. Steel Rail Controlling welding stress during rail welding is an important factor in determining the overall effect. Today, the rail welding company will come to summarize this problem, as follows: 1. Reduce the size of the weld: Under the conditions that meet the design requirements, the weld size and height should not be increased, and the concept that the weld is larger and safer should be changed. 2. Hammering method reduces welding residual stress: after each layer of weld bead is welded, immediately strike the weld metal with a round head slag hammer or electric hammering tool to make plastic extension deformati...

What Are The Precautions For The Welding Rail Process?

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Here is  China Standard Heavy Steel Rail Manufacturer  talking about the precautions for the welding rail process. The process of welding the rail is a local rapid heating and cooling process. The welding zone cannot be freely expanded and contracted due to the restraint of the surrounding work piece body, and the welding stress and deformation are generated in the weldment after cooling. Important products need to eliminate welding stress after welding and correct welding deformation. Let's take a look at the precautions for the welding process: High Quality Steel Rail 1. The cross-sectional shape of the butt joint weld is determined by the thickness of the welded body before welding and the groove form of the two joints. When welding a thick steel plate, grooves of various shapes are opened at the joint edges for penetration to facilitate feeding of the welding rod or the welding wire. The groove form has a single-sided welded groove and a double-sided welded ...

What Happened When The Rails Were Repaired?

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Here is  China Standard Heavy Steel Rail Manufacturer  talking about the reasons when the rails were repaired. If you need any information about  18k g Steel Rail , feel free to let us know. The "Kata" sound issued by the torque wrench is generated by its own internal torque release structure. Its structure is divided into three structures: pressure spring, torque release joint and torque ram. The torque wrench is after the sound of "Kata". The prompt has reached the torque value you requested; first set the required torque value on the torque wrench (the spring is applied to the torque release joint by the spring sleeve), lock the torque wrench and start tightening the bolt. When the bolt reaches the torque value (when the torque is greater than the spring pressure), an instantaneous disjoint effect occurs. At the moment of the disjoint effect, a joint tap is struck, and the "Kata" sound from the metal casing of the wrench is sounded. This co...

Elastic Rail Clip Introduction

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As an important part of the E -clip Fastening System , elastic rail clips are used with concrete railway sleepers to fasten rails on both sides. The rail clips are usually made of forged spring steel, which is manufactured by the hot forging process. The forged elastic rail clips are considered to be better than other metal forming processes due to most uniform microstructure. There are several types of  Railway Fasteners . Elastic rail clips are in a category called elastic fasteners. They can be engaged in line with the rail in E-clip fastening, or called fast clip fastening system. Both serve very well in attaching the rail track to the base plate and most importantly controlling those longitudinal forces. In this article, we will give you a detailed introduction to Elastic rail clips. Technical requirements of the elastic clip fastening system An ideal elastic fastening system should be able to meet the following requirements: Elastic clip fastening system should pro...