ホットストリップミルにおける鋼板の膜状ラミナ冷却特性

概要

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For an examination of cooling characteristics of hot steel sheets cooled by water films, tests were conducted on a model cooling apparatus and an actual run-out table in the hot strip mill at Kobe Steel's Kakogawa Works and led to the following conclusions : (1) Cooling capacity along a "stagnation line" created by the water film is nearly constant at a water flow rate of 0.3 to 0.9m^3/min・m. (2) Cooling capacity of "stagnation region" is reduced by "mixing region" that exists near the water film. (3) At a steel temperature range of 750-800℃, the effects of nozzle height and slit gap on cooling capacity are negligible. (4) Cooling tests of high temperature steel (730-860℃) on the run-out table demonstrate no difference in cooling capacity between this method, which uses water films, and the conventional one which uses water bars.
社団法人日本鉄鋼協会の論文
1987-06-01