A b s t r a c t -To depress the vibration andmeandering 11. ELECTROMAGNET ARRANGEMENT FOR VIBRATION of a thin steel plate in a steel making plant, electromagnets are applied to the plate. According to the results of numerical calculation, the different p o l e arrangement is superior to the same p o l e arrangement for the vertical position control, though At first, we consikxd the pole arrangement to get the highest A. System the same pole arrangement is superior to the different p o l e arrangement for the lateral position control.There i s no significant difference in the electromagnetic forces obtained at room temperature as compared to 700°C. However, the investigation shows that the smallest electromagnetic forces are obtained at the 765°C.
Synopsis :In order to manufacture products, various manufacturing specifications are necessary to be determined in advance. To manufacture coldrolled steel sheets, as an example, specifications, such as additive elements, rolling conditions, heat treatment conditions, have freedom of choice. And they have to be properly determined, considering various conditions and restrictions. More concretely, manufacturing specifications are usually determined through laboratory experiments or trial manufacture at actual processes, considering their influences on quality, cost, and production throughput of products. As changing manufacturing specifications usually give influence on quality, cost, and production throughput of products, it is not easy to change them according to the conditions such as the amount of in-process inventory, change of production cost or production requirements, and so on. This paper presents a new approach to promptly determine manufacturing specifications, by analyzing and quantitatively modeling relations between manufacturing specifications and indices of estimation for consequent manufacture, and selecting manufacturing specifications for realizing optimum indices of estimation. This approach is applied for determining bar gauge, thickness of hot-rolled coils, for manufacturing cold-rolled steel sheets, and improvement of production is realized by adapting to the changes of requirements and circumstances of production.
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