The steps include improving consistency in coating and colour variation, reducing thickness variation in coils, and reducing edge waviness.
Other measures include wrinkles and buckling, avoiding rustiness in the strip due to water ingress and removal of dents on the strip surface, the sources said.
Inconsistency in coating and colour variation is being reduced by improved bottom coating by optimising of roll pressure and viscosity.
Colour variation is avoided by reduction in line interruption by installing DCS system and by synchronising line speed by use of new PLC in the decarb line.
Thickness variation in coils is being checked by better management of pickling bath conditions and by better inputs from Hot Strip Mill through HR coil gauge control with the newly installed digital drive controls, the sources said.
Dents on the strip surface are being reduced by use of modified spray nozzles in scrubber section to prevent roll pick up, the sources said.
