博文

目前显示的是 九月, 2020的博文

How Should We Judge The Quality Of Angle Steel?

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  Angle steel is often used for the establishment of metal members, connectors and foundation frame structures, and has good plastic deformation properties. The range of use is also very wide. Many people want to know how to distinguish the quality of angle steel when buying it.  Angle Bar Supplier  will briefly introduce it to everyone.   Angle steel is mainly divided into two types: equilateral angle steel and unequal angle steel. Among them, unequal angle steel can be divided into two types: unequal width and unequal thickness. The specifications of the angle steel are indicated by the side length and side dimensions. At present, the specifications of domestic angle steel are 2-20, and the number of centimeters on the side is the number. The same angle steel usually has 2-7 different side thicknesses. The imported angle steel indicates the actual size and thickness of both sides, and indicates the relevant standards. Generally, a large angle steel having a side length of 12.5 cm or

Rails Are The Main Component Of Railway Tracks

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  Light steel Rail  is the main component of the railway track, it must ensure the continuity of the railway track and the quality of the rail itself. In order to ensure the normal operation of the railway and the person of the passenger, the waste steel rail must be replaced in time. The formation of  Heavy Steel Rail  contact fatigue damage can be roughly divided into three stages: the first stage is the change in the shape of the rail tread, such as irregularities in the rail tread, and saddle wear at the welds. These irregularities will increase the wheel to the rail The second stage is the destruction of the metal on the surface of the rail head. Due to the cold hardening of the metal on the rail head tread surface, the hardness of the working surface of the rail head continues to increase.   Welding Q345B angle steel with strong adaptability to the base metal composition and low C, S, P content is used. The formed weld metal C, S has a lower content, a higher weld Mn / S ratio, a

Structural Classification Of Steel Track

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Steel Track Type The type of  Steel Track is expressed in kilograms per meter of Steel Track mass. There are several kinds of Steel Tracks used on Steel Trackways in my country, such as 75kg/m, 60kg/m, 50kg/m, 43kg/m and 38kg/m. The cross-sectional shape of the Steel Track adopts an I-shaped cross-section with the best bending resistance, which is composed of three parts: Steel Track head, Steel Track waist and Steel Track bottom. In order to make the Steel Track better withstand the forces from all aspects and ensure the necessary strength conditions, the Steel Track should have sufficient height, its head and bottom should have sufficient area and height, and the waist and bottom should not be too thin. Among the above various types of Steel Tracks, production of 38kg Steel Tracks has been stopped,  60kg Heavy Steel Rail and 50kg Heavy Steel Rail are laid on the main trunk lines, and 43kg Steel Tracks are generally laid on station lines and special lines. For heavy-duty

How Should We Judge The Quality Of Angle Steel?

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Angle steel is often used for the establishment of metal members, connectors and foundation frame structures, and has good plastic deformation properties. The range of use is also very wide. Many people want to know how to distinguish the quality of angle steel when buying it.  Angle Bar Supplier  will briefly introduce it to everyone. Angle steel is mainly divided into two types: equilateral angle steel and unequal angle steel. Among them, unequal angle steel can be divided into two types: unequal width and unequal thickness. The specifications of the angle steel are indicated by the side length and side dimensions. At present, the specifications of domestic angle steel are 2-20, and the number of centimeters on the side is the number. The same angle steel usually has 2-7 different side thicknesses. The imported angle steel indicates the actual size and thickness of both sides, and indicates the relevant standards. Generally, a large angle steel having a side length of 12.5 cm or