Do you know anything about carbon steel elbow?

Do you know anything about carbon steel elbow?

Here is a brief introduction to carbon steel elbow products: CARBON steel elbow is a metal pipe fitting that changes the direction of the pipe on carbon steel pipe. The connection mode has thread connection and welding connection. According to the Angle, there are three commonly used 45° and 90°180°, in addition, according to the engineering needs, it also includes 60° and other shaped elbow. Elbow materials are cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals.

Types of carbon steel elbow: Carbon steel elbow is divided into long radius elbow and short radius elbow according to its curvature radius. Long radius elbow refers to the curvature radius is equal to 1.5 times of the pipe diameter, namely r=1.5D; Short radius elbow refers to the curvature radius equal to the pipe diameter, namely r=1.0d (d is the diameter of the elbow, R is the curvature radius. D can also be expressed in multiples), divided into 45° elbow, 90° elbow and 180° elbow according to the Angle of the elbow.

Carbon steel elbow process: seamless elbow: elbow is used for bending pipe fittings. For elbows with different materials or wall thickness, different forming processes are generally selected. The molding process of seamless elbow commonly used by manufacturers includes hot pressing, stamping, extrusion, etc., which accounts for a large proportion of about 80% of all pipe fittings used in the pipeline system.

Hot push forming: hot push elbow forming process is the use of a special elbow pusher, core die and heating device, so that the die blank in the push rod to move forward and heat the process, in the expansion and bending. The diameter of the billet used is smaller than the diameter of the elbow. The deformation process of billet is controlled by mandrel. The deformation characteristic of hot push elbow is that the diameter of billet is determined according to the rule that the volume of metal material stays the same before and after plastic deformation. The compressed metal flow in the inner arc is compensated to the other parts that are thinned due to diameter expansion, so that the elbow with uniform wall thickness is obtained. Therefore, it has become the main forming method of carbon steel and alloy steel elbow, and is also suitable for mass production. The heating methods of forming process include medium frequency or high frequency induction heating, flame heating and reflector furnace heating.

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