METHOD FOR MEASURING OPERATING PERIOD OF SHAPE BENDING ROLLS Russian patent published in 2006 - IPC B21B28/02 

FIELD: rolled stock production, namely manufacture of bent rolled shapes, particularly determining wear resistance of shaping tool.

SUBSTANCE: method comprises steps of calculating quantity C₁ of rolled metal from time moment of mounting new rolls with maximum diameter till time moment of dismounting rolls with minimum diameter. Metal quantity C₁ is calculated for shape rolled of blank with thickness h₁ and width b₁ between rolls with rolling diameter d₁ at the most value of metal pressure acting upon rolls equal to P₁. Value C₂ of metal quantity for shape rolled of blank with thickness h₂ and width b₂ between rolls with rolling diameter d₂ at the most value of metal pressure acting upon rolls equal to P₂ is normalized by means of mathematical expression.

EFFECT: lowered labor consumption for making rolls, economy of high-cost material.

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