Hunan Great Steel Pipe Co.,Ltd

Seamless steel pipe is heated and pulled by solid solid round steel "billet" until cast into a hollow tube. Seamless tubes are then processed into dimensions and wall thickness sizes ranging from 1/8 inch to 32 inches in diameter. Carbon steel is an alloy of iron and carbon. The amount of carbon in steel affects the hardness, elastic strength and ductility of carbon steel. Seamless carbon steel pipes or solid ingots are made of capillary tubes through holes and then made by hot, cold or cold-rolled. Seamless steel pipe plays an important role in China's steel industry. Seamless carbon steel pipe is a cylinder-shaped pipe, pipe cutting machine embryo to go through about 1 meter length of blank cutting, and by the conveyor belt furnace heating. The billet is fed into a heating furnace at a temperature of about 1200 degrees C. Fuel is hydrogen or acetylene. Furnace temperature control is a key issue. The tube comes out and rushes into the machine through air pressure. Generally more common punching machine is a cone roller punching machine, the puncher production efficiency is high, good product quality, hole diameter is large, can grind a variety of steel. When perforated, the round tube has been rolled, rolled or extruded by three rolls. The slurry is then extruded tube. A tube is formed by applying glue to the billet by rotating the cone hole at high speed. The diameter of the pipe diameter is determined by the diameter of the drill. After the pipe enters the cooling tower through the slurry, it is cooled with water mist and the steel should be straightened. The steel belt is sent to straighten and internally tested by a metal test machine (or pressure tester). If cracks, bubbles, etc. appear inside the pipe, problems will be detected. The tube is also subject to a rigorous quality control manual selection. Steel quality, the use of paint number, specifications, production lot number. Enter the warehouse by crane.