Hot Selling carbon steel pipe

Carbon steel pipe can be divided into seamless steel pipe, straight seam steel pipe, spiral steel pipe and high-frequency welded steel pipe. The rolled seamless carbon steel pipe takes the round pipe as the raw material, cuts the tube embryo into a blank about 1m long by the cutter, and sends the conveyor belt to the heating furnace for heating. The billet is fed into the furnace and heated at a temperature of about 1200 degrees Celsius. The fuel is hydrogen or acetylene. Furnace temperature control is a key problem. The round tube blank is pierced by the pressure piercer.

Generally, the more common punching machine is the tapered roller punching machine. This punching machine has high production efficiency, good product quality, large perforation and diameter expansion, and can wear a variety of steel. After the round tube blank is perforated, it passes through three roll cross rolling, rolling or extrusion. Tube diameter after extrusion. The sizing machine enters the steel embryo for drilling through the high-speed rotary cone bit to form a steel pipe. The inner diameter of the pipe is determined by the outer diameter of the sizing bit.

After sizing, the steel pipe enters the cooling tower, and the pipe after water cooling and cooling must be straightened. After straightening, the steel pipe is sent to the metal detector (or hydrostatic test) for internal inspection. If the pipe has cracks, bubbles and other problems, it will be detected. After the steel pipe is qualified, it will also be strictly selected manually. After the quality inspection, the steel pipe is sprayed with paint with number, size and production batch number. It is lifted into the warehouse by crane.