| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.9 ( March 1984 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Optimized Operation System in Hot Strip Rolling Nariharu Kitao, Masamitsu Obashi, Kiyoshi Takagi, Masayasu Fukui, Ichiro Toda, Kozo Ishikawa, sumihiko Iro |
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Synopsis : Optimized operation system from furnaces to coilers has been developed at the hot strip mill of Mizushima Works. This system consists of furnace combustion control, mill pacing control and direct digital control from delay table to coilers and is well combined with various rolling techniques. By introducing the system, the accuracy of the temperature calculation model of slab and sheet bar is greatly improved, i.e., 1Π=12, and sheet bar temperatures at the exit of roughing train can be controlled so as to follow closely changeable target values. Furthermore, the rolling interval time at No.1 finishing mill has been shortened to 5 seconds from previous 12 seconds, when the setting of finisher rolling speed is changed. |
| TextiPDF: 8p./342kbj |