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The difference between I-beam and H-beam
As the name suggests, the I-beam is an "I"-shaped cross-section steel. The inner surfaces of the upper and lower flanges have an inclination, usually 1:6, which makes the flanges thin on the outside and thick on the inside. This causes the I-beam to be in two places. The cross-sectional properties of the main planes vary greatly, making it difficult to exert the same strength properties in applications. Although thickened I-beams have also appeared on the I-beam market, the structure of the I-beam has determined its shortcomings in torsional resistance.
2024-01-05
What are the application ranges of H-shaped steel?
H-shaped steel is an economical section and high-efficiency profile with more optimized cross-sectional area distribution and a more reasonable strength-to-weight ratio.
What aspects need to be paid attention to in the steel production process?
The main raw materials for steel are iron ore, coal and scrap steel. During the raw material preparation stage, it is necessary to ensure that the quality of the raw materials meets the requirements and is appropriately proportioned to obtain the appropriate chemical composition.
What does steel bar processing include?
Cold drawing of steel bars is to stretch the steel bars at room temperature, so that the tensile stress of the Ganzhou steel bars exceeds the yield point and causes plastic deformation, in order to achieve the purpose of increasing the strength (yield strength). During cold drawing, the steel bar is straightened and the rust residue on the surface is automatically peeled off. Therefore, cold drawing can not only improve the strength of the steel bar, but also complete the straightening and rust removal work at the same time. The cold drawing of steel bars can adopt the method of controlling stress or controlling the cold drawing rate;
What are the techniques for cutting steel plates?
Gases used in flame cutting. On the one hand, oxygen is necessary for the combustion of combustible gases. It provides the necessary energy to reach the flammable temperature of the steel plate. On the other hand, oxygen is necessary for combustion after the steel plate is preheated to the ignition point. conditions met. The oxygen used when cutting steel plates must be of high purity. The usual standard for oxygen purity is above 99.5%. Some high-quality industry standards require oxygen purity to be above 99.7%. When the oxygen purity decreases, not only the cutting speed decreases, but also the cutting slit will become wider, and there will be more slag hanging at the lower end of the incision. Since it is difficult to clean immediately, the quality of the cutting section will be greatly reduced, and the oxygen consumption will also increase.
What are the processes for producing steel coils?
Raw material preparation: Select appropriate steel as raw material, and perform cutting, lengthening and other processing to facilitate subsequent processing and production.
