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Tensile, Compression, Torsion, Shear Strength
Jul 05, 2018

1. Flange is the connection of two large diameter pipes, usually two flanges plus a number of fastening bolts. Carbon steel flanges are flanges made of carbon. Low-carbon steel has good plasticity and low strength. When a proper amount of carbon is added, it becomes hard and the plasticity is reduced.

2. Flange connection may need to withstand high tensile, compressive, torsional, shear strength, carbon steel flange is a better choice. The nominal pressure is determined not only according to the highest working pressure, but also according to the highest working temperature and material characteristics, not just the nominal pressure greater than the working pressure.

3. The bolt connection is a fastener connection. Compared with other connection methods, it has advantages. It is convenient to assemble and disassemble, which is convenient for inspection. It can increase the pre-tightening force to prevent loosening, and will not cause phase change of material composition at the joint, but it also has Disadvantages, increased weight, and corrosion is likely to occur at the seams of the bolted joints, causing connection failure.

4. Hexagon flange face bolt contact surface is large, combined with cone and spherical gasket, mainly used for fixing two non-parallel parts.

5. The bolt connection is generally divided into two cases: 1. The shear force of the section is taken.

2, to withstand the axial tension. From the application point of view, the connection to withstand the tension is more. It is only suitable for applications where it can be removed. The advantage is that the assembly and disassembly is convenient, the disadvantage is that it is easy to fail and needs to be pre-tightened and loosened in the case of large force.


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