How does elbow manufacturer make seamless elbow

How does elbow manufacturer make seamless elbow  

Seamless elbow manufacturers production process: seamless elbow before production needs cold drawing seamless elbow pipe round tube blank, heating, perforation, heading, annealing, pickling, oil coating, multi-pass cold drawing, blank tube, heat treatment, correction, water pressure test, flaw detection, marking, storage.  

Seamless elbow pipe fittings are made by different processes. Seamless elbow is divided into long radius elbow and short radius elbow.  

The raw material for seamless elbow rolling pipe fittings is round tube billet, which shall be processed and formed into blank of seamless elbow pipe length by cutting machine, and transported to furnace for heating through conveyor belt.  Billets are fed into the furnace every time they are heated at a temperature of about 1200 degrees Celsius.  The temperature control in the furnace is the problem of pipe shape. After the round pipe billet is baked, it will be perforated by pressure piercing machine. Generally, the longer piercing machine is the cone roller piercing machine, which has high production efficiency, good quality of seamless elbow pipe fittings, large diameter expansion and can wear a variety of pipe fittings.  

Since most seamless elbow pipe fittings are used for welding, in order to improve the welding quality, the end parts are broken, with a certain Angle, with a certain edge, the processing of seamless elbow pipe fittings is more strict, for the sake of convenient welding, seamless elbow pipe fittings in the connection of the steel is the same.  

All customers who order seamless elbow pipe fittings in our company our company will carry out surface treatment of pipe fittings, using advanced instruments for testing.  In accordance with the requirements of the customer packaging.  Transport to the place designated by the customer.  

Seamless elbow pipe fittings are generally packed in wooden cases, cartons and pallets during transportation.  The above packing method is mainly for convenient transportation and protection of seamless elbow pipe fittings.