Linz/AT (Siemens) – Metals Technologies (MT), a division of the Siemens Industrial Solutions and Services (I&S) Group, received orders from two Chinese steel producers to supply automation systems for their new hot-strip mills. The scope of supply includes all the basic and process automation as well as the visualization systems. One plant will also be supplied with Siemens drive systems for the motors of the rolling stands. The new rolling mills are scheduled to start operating as early as the middle and the end of 2008, respectively. The two projects increase the number of orders for automation solutions for Chinese hot-rolling mills to a total of five in the current fiscal year.
Siemens is supplying the basic and process automation for both of these plants, from the furnace exit side for the roughing and finishing mills, to the laminar-flow-cooling sections and up to the coilers, including the coil conveyors. Integrated HMI systems with easy-to-use process and plant diagnostic functions will facilitate operation of the plants. Central components of the automation solutions from Siemens are the process models for automatic presetting of the roughing and finishing mills, the models and control systems for determining and adhering to the strip width, the integrated profile and flatness model of the finishing mill as well as the “Microstructure Target Cooling” strip-cooling model. All the used components, systems, controllers and models are parts of the integrated Siroll HM concept for hot-rolling mills. The high degree of automation enables fully automatic operation of the plants with fewer personnel. The automation equipment is characterized by a high degree of standardization. This ensures rapid production start-up and high plant availability while reducing maintenance to a minimum.

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