METHOD FOR HOT ROLLING OF STRIP Russian patent published in 2002 - IPC

FIELD: ferrous metallurgy, namely manufacture of hot rolled strips. SUBSTANCE: method comprises steps of decreasing thickness of blank by multiple plastic deformation of it between horizontal rolls and decreasing width value of rolled pieces by multiple plastic deformation between inclined vertical rolls. According to invention it is possible to realize plastic deformation of rolled piece by means of vertical rolls inclined in plane normal relative to rolling direction at forming angle between axes of rolls. Deformation is performed by means of rolls with cone barrels; at process of rolling deformation zone of rolled piece is shifted along length of roll barrel. It is recommended to incline vertical rolls in such a way that to provide crossing of their axes at level higher than that of rolling. Rolls are mounted in such a way that roll barrels are turned upwards by their less diameter. It is also recommended to incline vertical rolls in such a way that to provide crossing of their axes at level lower than that of rolling when rolls are mounted in such a way that roll barrels are turned downwards by their less diameter. EFFECT: increased reduction degree along width of rolled piece, lowered quantity of crops, enhanced efficiency of process. 3 cl, 14 dwg