The technical characteristics of seamless elbow

The technical characteristics of seamless elbow

Seamless elbow is a kind of pipe fitting used for pipe turning. In the piping system of all the pipe fittings, the proportion is larger, about 80%. Usually, different forming processes are selected for elbow with different wall thickness. At present. The seamless elbow forming process commonly used in the factory is hot push, stamping, extrusion and so on

Seamless elbow is also called seamless pipe elbow or Seamless pipe elbow. Seamless elbow pipe fittings can be divided into hot rolled (extruded) seamless elbow pipe fittings and cold drawn (rolled) seamless elbow pipe fittings due to their different manufacturing processes. Cold drawn (rolled) pipe is divided into two types: round pipe and special-shaped pipe.

The raw material of seamless elbow pipe fittings is round tube billet, and the round tube embryo is cut and processed by the cutting machine to the billet with a length of about one meter, and sent to the furnace by the conveyor belt for heating. The billet is fed into the furnace and heated to a temperature of about 1200 degrees Celsius. The fuel is hydrogen or acetylene. Temperature control in the furnace is a critical issue. After the round tube billet comes out, it should be perforated by the pressure punch. Generally more common piercing machine is the conical roller piercing machine, this kind of piercing machine has high production efficiency, good product quality, large perforation diameter expansion, can wear a variety of pipe fittings. After perforation, the circular tube billet is successively three - roll oblique rolling, continuous rolling or extrusion. After extrusion, the diameter should be taken out of the pipe. The sizing machine rolls steel blanks through a cone bit at high speed to punch holes and form pipe fittings.

Forging and pressing method of seamless elbow: the end or part of the pipe is extended with a forging machine to reduce the outer diameter of the seam elbow.

Seamless elbow rolling method: generally do not need a mandrel, suitable for thick wall tube inner round edge. The core is placed in the tube, and the roller is used to push and press around the tube for round edge processing.

Seamless elbow punching: The end of the pipe is expanded to the required size and shape with a taper core on the punch press.

Seamless elbow manufacturers mainly produce a variety of different types and materials of pipe fittings, including: elbow, tee, size head, pipe cap, flange, steel pipe, etc. Welcome customers to the company to visit and order!

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