| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.40 ( May 1999 ) Steinless Steel and Steel Platel ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Hot Rolling Technology for Producing High
Quality Stainless Steel at No. 3 Hot Strip
Mill in Chiba Works Naoto Egawa, Haruhiko Ishizuka, Toshiki Hiruta |
| Synopsis: No. 3 hot strip mill in Chiba Works of Kawasaki Steel started its operation in May 1995. The mill meets the strict quality requirements of customers in recent years and expands the product size of stainless steel. The dimensional and surface quality of stainless steel at No. 3 hot strip mill further advanced by introducing highly accurate and high-response thickness gauge control, set-up and dynamic control for optimizing crown and flatness at pair cross mill, equipped with on-line roll grinder, and edge-seam control. (1) Product size of hard steel strips such as stainless steel has been expanded and high accuracy in longitudinal thickness has been achieved over the full length of hot rolled strips. (2) Low crown of stainless steel has been able to be obtained by developing highly accurate crown and flatness control. (3) Reduction of the edge-seam defects of stainless steel has been developed by using the sizing press. |
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