Stress state of billet – mandrel system during production of hollow steel billet in a unit of continuous casting and deformation. Part 1

The substantiation of the relevance obtaining continuous cast steel pipe hollow billet is given from position improving quality pipes made carbon and alloy steels given. article presents an assessment inner surface solid billet. A new technology proposed for production billets on a resource-saving unit combined casting deformation. photo deformation section JSC Ural Pipe Plant given, where pilot installed. paper results theoretical study stress-strain state mandrel sections when it compressed by strikers authors discuss general model mold – striker system. initial data calculation, dimensions description calibration compression are temperature field was determined. To simulate metal in roll pass mandrel, four contact pairs were considered. Calculations finite element method. final established values patterns changes displacements axial stresses during (strikers along constant radius). stress assessed standpoint billets.