SPECIAL STANDBY SHAPE Russian patent published in 1999 - IPC

FIELD: rolled stock production, possibly metallic structures in building, tunnelling and other industry branches. SUBSTANCE: special standby shape includes in cross section bottom, lateral walls and flanges and at least a part of inner and(or) outer bottom line and(or) at least of one wall and(or) at least one flange that form angles due to their crossed axes, in the form of fragment of oblique cone section of straight round cone. It provides increased smoothness of transitions of curve portions at maintaining smoothness independently upon roll wear, lowered cost price due to decreased formation degree of shape at rolling process and enhanced wear resistance of rolling rolls. EFFECT: lowered cost price of shape manufacture, enhanced technological effectiveness, decreased material consumption at maintaining carrying capability in condition of lengthwise axially non-symmetrical compression, torsion or bending. 30 cl, 15 dwg