The production process of seamless steel pipe
is mainly accomplished by tension reduction. The tension reduction process is a continuous rolling process of hollow base metal without core rod. In the production rolling process, sometimes the steel pipe is not straight, and what method can correct the tortuosity of the seamless steel pipe?
The seamless steel pipe is a circular, square, rectangular steel with a hollow section
and no seams around it. The seamless steel pipe is formed by perforating a steel ingot or a solid tube blank, and then hot rolled, cold rolled or cold drawn. The seamless steel pipe has a hollow section and is used as a pipe for conveying fluid. Compared with a solid steel such as round steel, the steel pipe is light in weight when it has the same bending and torsional strength, and is an economical section steel, which is widely used in manufacturing structures. Parts and mechanical parts, such as oil drill pipes, automotive drive shafts, bicycle frames, and steel scaffolding used in construction.
The fundamental principle of straightening is to make the elastic steel tube elastic and tortuous, and the large tortuosity becomes a small tortuosity. Therefore, the steel pipe needs to be repeatedly twisted and twisted in the straightening machine, The degree of repeated twists and turns of the steel pipe is mainly determined by the adjustment of the straightening machine.. The resolution of the straight machine is adjusted. There are many factors that affect the quality of straightening, such as the tortuosity of the original pipe, the size of the steel pipe and the type of material straightening machine, and the adjustment parameters.