STEEL PIPE OVALITY PREDICTION METHOD, STEEL PIPE OVALITY CONTROL METHOD, STEEL PIPE MANUFACTURING METHOD, STEEL PIPE OVALITY PREDICTION MODEL GENERATION, AND STEEL PIPE OVALITY PREDICTION DEVICE Russian patent published in 2023 - IPC B21D5/01 B21D39/20 G05B23/02 G06N20/00 

FIELD: pressure treatment.

SUBSTANCE: invention can be used in the manufacture of steel pipes. The manufacture of the pipe includes the step of bending the steel sheet to form a moulded billet, the step of reducing the welding gap of the billet to produce an open pipe, the step of welding the ends of the open pipe to each other, and the step of expanding the finished pipe. The pipe ovality prediction method after the expansion step includes an ovality prediction step using an ovality prediction model trained by machine learning. The model comprises at least one parameter selected from the steel sheet attribute information, from the pressure bending step operating parameters, and from the welding gap reduction step operating parameters as input. The model comprises information about the ovality of the pipe after the expansion step as output.

EFFECT: accurate prediction and control of the ovality of the steel pipe and obtaining a pipe with the desired ovality.

13 cl, 16 dwg, 1 tbl, 1 ex