| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.37 ( October 1997 ) Rolling Technology and Modernization of Chiba Works ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Development of Advanced Transverse Thickness
Profile Control of Thin Hard Steel Strips
at Tandem Cold Rolling Mill Toshiki Hiruta, Isao Akagi, Narihito Mizushima |
| Synopsis: A new edge drop control system for thin hard steel strip has been developed by applying suitable taper profile in the one-side tapered work roll shifting method (K-WRS: Kawasaki Steel work roll shifting method) to four 6-high mills at the No. 2 tandem cold mill at the Mizushima Works of Kawasaki Steel. The feed-forward edge drop control system, corresponding to the amount of crown of a hot-rolled strip, and feed-back edge control system using an edge drop sensor, have been established in the tandem cold mill. Consequently, accuracy of transverse thickness within 0.5% has been achieved in steady state (in the middle part of a strip), and within 0.8% in non-steady state (at the lead and tail ends of a strip) over the entire length of the thin hard steel product. |
| TextiPDF: 6P/269kbj |