it is stated that some control functions of a seamless steel pipe rolling mill can be assigned to a certain unit without considering the operation of other units on the rolling line, while other control functions are To play the role of overall coordination, unify and coordinate all the pipe rolling operation status of the pipe rolling mill, and combine them in a single system.

Surface defects (scars, pits, grooves, cracks, etc.) of the tube blank are generally inspected by artificial naked eyes (if there are special requirements, non-destructive testing methods are required), and then the defects are cleaned up.

Anti-corrosion steel pipe is a steel pipe processed with anti-corrosion technology. It can prevent or slow down chemical or electrochemical reactions during transportation and use.

The cutting methods of seamless steel pipe blanks include gas cutting, shear cutting, press breaking, sawing and so on.

Straight seam steel pipes can be divided into high-frequency straight seam steel pipes and submerged arc welded straight seam steel pipes according to the production process.

The submerged arc welding process is suitable for the requirements of heavy industrial applications such as pipelines, pressure vessels and tanks, locomotive manufacturing, heavy construction, and excavation.