Abstract
The article offers the structure of the three-roll stand for radial-shear rolling that is designed to deformation of continuous cast billets. The stand can be installed in the pipe rolling mill manufacturing line that shall ensure manufacturing flexibility. To achieve the objective set, elaboration of working rolls integration with the drive as well as verification against the allowable torque and strength calculations in SolidWorks Simulation were performed at the design stage. For the major part of the frame, stresses do not exceed 60 MPa and the design rigidity rate will be 2.86 MN/mm. The special stand has a specific frame structure to ensure its mounting on the existing equipment base. The configuration of rolls sets is selected considering the possibility of integration with the spindle assemblies of the group drive and maximum allowable cross angle (≤ 15°). The developed design proves to have sufficient strength margin with the relatively small weight. The special radial-shear rolling mill stand will allow increasing total strain degree and reducing the number of billets sizes.
Highlights
Rolling mills are generally considered to be unique and high-performance metallurgical units [1,2,3,4]
Metallurgical companies involved in manufacture of steel seamless pipes use steel continuous cast billets (CCB) to manufacture initial billets [12, 16,17,18,19]
The objective of this study is to develop the design of a special radial-shear rolling (RSR) mill stand intended to perform deformation of CCB
Summary
Rolling mills are generally considered to be unique and high-performance metallurgical units [1,2,3,4]. The design development is performed considering the developed process and size range of the manufactured products. Transfer to CCB application is attributed to the advantages and benefits of this method in terms of manufacturing costs reduction and through yield output increase. A wide range of seamless pipes manufactured using the same unit implies application of different diameters billets. Three-roll radial-shear rolling (RSR) mill can be used to decrease the size range of billets and pre-strain prior to piercing [20].
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