Production Process For Seamless Steel Pipe

The raw material for rolling the seamless pipe is a round tube blank, and the round tube blank is cut into a blank having a length of about 1 m by a cutting machine, and sent to a furnace for heating via a conveyor belt. The billet is sent to the furnace for heating at a temperature of approximately 1200 degrees Celsius.

The fuel is hydrogen or acetylene. The temperature control in the furnace is a key achievement. After the round billet is released, it must be stopped by a pressure puncher. The normal and rare punching machine is a conical roller punching machine. This punching machine has high production efficiency, good product quality, large diameter of perforation and can wear a variety of steel types.

After perforation, the round billet is successively rolled, rolled or extruded by three rolls. After extrusion, the tube should be sizing. The sizing machine changes the hole into the steel core through the cone drill bit at high speed to cause the steel pipe. The inner diameter of the steel pipe is affirmed by the outer diameter of the sizing machine drill bit. After the steel pipe is sized, it enters the cooling tower and is cooled by water spray. After the steel pipe is cooled, it is straightened.

After the steel pipe is straightened, it is sent to the metal flaw detector (or water pressure test) by a conveyor belt to stop the external flaw detection. If there are cracks on the outside of the steel pipe, bubbles and other achievements will be detected. After the quality inspection of the steel pipe, it must be carefully selected by hand. After the quality inspection of the steel pipe, the paint is sprayed with the number, specification, production batch number, etc. It is hoisted into the inn by a crane.

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