JFE Steel’s Super-CR Achieves Accumulative 800,000T Steel Plate Output

JFE Steel announced on Wednesday the firm’s output of steel plate made by its unique cooling equipment, Super-CR, accumulated 800,000 tonnes. Super-CR was installed in a plate mill in Keihin area of East Japan iron works in May 2009. Super-CR contributed to improvement of rolling efficiency for high tensile steel plate by 20% while the plate mill’s production capacity increased to 150,000 tonnes per month from previous 140,000 tonnes. JFE Steel utilizes Super-CR to develop and expand sales of new plate products for building materials and shipbuilding.

High tensile steel plate is mainly produced by thermo mechanical controlling process (TMCP), combination of online thermo controlling and accelerated cooling. However, rolling machine cannot work during plate is cooled since rolling machine and cooling equipment are distanced. This caused lower productive efficiency.

Super-CR sets rolling mill and cooling equipment integrally and synchronizes water-cooling process and rolling process. Moreover, increased water dosage enables speedy and evenly cooling of steel plate. Super-CR can also increase cooling patterns on a rolling line by combination of existing online accelerated cooling equipment, Super-OLAC. These functions contribute to development of new products such as TMCP plate with high deformability or steel plate with well-controlled surface scale.