Seamless steel pipes are manufactured by rolling steel ingots into round bars, then piercing them to create tube blanks (also known as rough tubes), which are further processed into seamless pipes through processes such as hot rolling, cold rolling, or cold drawing. The production of seamless steel pipes involves various production processes and equipment. Whether it is continuous rolling, cyclic rolling, mandrel rolling, or extrusion production processes, it is essential to heat the round bars or tube blanks to the required temperature using an induction heating furnace before feeding them into the rolling or extrusion machines to produce seamless steel pipes. Subsequent processes include straightening, cutting and marking the pipes, and bundling them for storage.
The equipment for seamless steel pipe production typically includes a cutting saw, tube blank heating equipment, induction heating furnace, taper piercing machine, Accu-Roll mill, 8-stand three-roll micro tension reducing mill, step cooling bed, six-roller straightening machine, high-efficiency pipe cutting machine, 180mm automatic magnetic particle inspection equipment, 80MPa hydrostatic testing machine, as well as length measurement, weighing, marking, laser engraving, and bundling equipment.
The seamless steel pipe production equipment can produce a variety of seamless steel pipes, including those used for main structures, hydraulic pillars, fluid transportation, semi-trailer axles and shaft sleeves, high-pressure boiler applications, as well as specialized seamless steel pipes for oil casings, pipeline transportation, and other purposes.
In conclusion, the production of seamless steel pipes requires a range of specialized equipment to ensure the quality and efficiency of the manufacturing process. From heating and processing the raw materials to testing and packaging the final products, each step in the production process plays a crucial role in delivering high-quality seamless steel pipes to meet the diverse needs of various industries.