The proportion of carbon steel elbows used in pipe

The proportion of carbon steel elbows used in pipe fittings

Carbon steel elbow is a kind of pipe fittings used in pipe bends, which accounts for a large proportion in the use of pipe fittings. Because of its different manufacturing methods, it can be divided into extruded large diameter seamless carbon steel elbow and cold drawn large diameter seamless carbon steel elbow. Cold drawn large diameter seamless carbon steel elbow has two kinds of round pipe and shaped pipe. At present, the processing technology of large diameter seamless carbon steel elbow includes hot pushing, stamping, extrusion and so on. According to different materials, wall thickness to choose its production process.

The forming methods of large diameter seamless carbon steel elbow are:

The forging method is to use the type forging machine will be a part of the pipe to be thrust, so that the outside diameter is reduced to the required degree.

The rolling method is suitable for thick - walled pipes. A core is placed inside the tube and pressed with a tube wheel around the tube to shape it into the desired shape.

The stamping method is to extend the tube end to the required size and shape with a taper core on the punch press.

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