Improvement of Correction Accuracy in Flange Roller Leveler Process For H-Beam

by Ryuma Taniguchi

Publisher - JFE Steel Corporation, Japan

Category - Engineering & IT

Flange squareness of H-beam is corrected by Flange roller leveler in JFE Steel West Japan Works Shape department. There was a problem that the flange aquareness after online correction had been still out of acceptable range. Three actions have been carried out to improve correction accuracy. (1) Setting on Guiding-rollers at entry-side of the flange roller leveler (2) Installing of the software which considers deformation state in correction (3) Optimization of the coefficient for control-delayed system After these improvements, the ratio out of acceptable range about flange squareness has been reduced from 7.5% to 4.6%.

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