| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.11 ( March 1985 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Finishing Mill Tension Control System in the Mizushima Hot Strip Mill Keiichi Hamada, Shigeru Ueki, Makoto Shitomi, Katsuhiko Doi, Kozo Ishikawa, Takayasu Okuda |
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Synopsis : At the Mizushima hot strip mill, the tension control system in the finishing mill was replaced to improve dimensional accuracy of strip. In latter stands, conventional loopers were renewed to low-inertia electric loopers with a tension measuring device. The control system has not only a looper height control function but also a strip tension control function, and is constructed as an anti-interference system of these two functions. In former stands, a looperless control system was introduced without new loopers. A direct digital control system was also applied for improving control accuracy. As the result of this refreshing; good operational performance has been achieved, for example, in width accuracy, we have reduced excess width by 2.5mm. |
| TextiPDF: 9p./368kbj |