Some issues in calculation and design of hot-rolled steel sections straightening machines

Abstract

In the process of manufacturing various types of steel profiles, including hot-rolled steel profiles used in SVP (CBΠ) mining, the steel billet is heated and passed through the shaped hole to create the preliminary shape of the part. After the rolling and cooling process, the part will have residual stress and deformation in the part or appear in the cooling stage, leading to warping of the part. The steel straightening machine is used to straighten the part to achieve the desired size, shape and quality. In this study, the authors introduce to the reader the working principle and present some theoretical bases for calculating the design of the machine, then go into calculating the design of 01 steel straightening machine and apply NX software to analyze the structure of the part, part cluster. The results of this study can be used as a reference in calculating the design of a steel straightening machine.