アーク炉用水冷炉蓋
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概要
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In recent arc furnace steelmaking, furnace refractories are being put under very severe conditions because of large size of arc furnace and the ultra-high power operation.Water cooled panels are used in place of side wall refractories at hot spots in general and they are indispensable to arc furnace operation.Roof refractories, however, have not been replaced yet by water cooled panels for several reasons, and life of roof refractories in larger arc furnace is about 100 to 150 heats and that of some arc furnaces is less than 100 heats.Hereunder we disclose the data obtained from the trial tests for water cooled roof that has been used at our Chita Plant since November, 1977.
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