ROLL EXPLOITATION METHOD Russian patent published in 2003 - IPC

FIELD: metallurgy, namely plastic metal working, possibly in aggregates for electric welding of tubes with group drive of shaping mill rolls having rounded grooved passes. SUBSTANCE: method comprises alternating operation of rolls with rounded grooved passes in stands of tube shaping mill with group drive of rolls and mechanical removal of damaged layer at simultaneously profiling grooved passes. In order to lower roll consumption in each stand, wear degree of roll grooved passes is determined after operation. At subsequent profiling of roll grooved passes proportional reduction of curvature of grooved pass roundings is performed in stands with higher degree of wear and in stands with lower degree of wear curvature of grooved pass roundings is proportionally increased. EFFECT: reduced roll consumption. 1 ex