The use and function of seamless elbow

The use and function of seamless elbow

A little bit about elbow, the English name of elbow is elbow. Elbow is the pipe fittings used to change the direction of the pipe. Elbow material is carbon steel, alloy steel, stainless steel and so on. The connection between elbow and steel pipe is welded directly and connected by flange. Elbow is divided into long radius elbow and short radius elbow, elbow is divided into stamping elbow, welding elbow, push elbow, etc. For example, a push elbow is shaped by a push machine and a die.

The inside and outside surface of the elbow produced by the elbow pushing machine is smooth, smooth, beautiful, no oxidation, decarburization, wrinkle, heavy skin, cracks and other defects. Excellent mechanical properties, can ensure normal use. Can realize the push of sharp bend and any degree of joint, such as: can push the Angle of the elbow 45° 90° 180° and so on. Other elbow manufacturing techniques can not be achieved. The technology of hot-push seamless elbow is produced under the condition of high technology process equipment and high degree of mechanization and automation.

Hot push forming: hot push elbow forming process is the use of elbow pushing machine, core die and heating device, so that the blank on the mold in the push machine to move forward, in the movement is heated, expanded and bending forming process. The deformation characteristic of hot pushing elbow is to determine the diameter of the tube billet according to the law of constant volume before and after plastic deformation of the metal material. The diameter of the tube billet is less than the diameter of the elbow. The deformation process of the blank is controlled by the core mold, so that the compressed metal flow in the inner arc can be compensated to other parts thinned by expanding the diameter, so as to obtain the elbow with uniform wall thickness. Hot push elbow forming process has the characteristics of beautiful appearance, uniform wall thickness, continuous operation and suitable for mass production, so it has become the main forming method of carbon steel and alloy steel elbow, and is also used in the forming of some specifications of stainless steel elbow.

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