Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Thermal Study on Possibility of Direct Rolling between the Continuous Casting and Hot Rolling Processes
Jun-ichi KOKADONatsuo HATTAHirohiko TAKUDARyozo KITAGAWA
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1988 Volume 74 Issue 7 Pages 1370-1377

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Abstract

The possibility of unification between the continuous casting and hot rolling processes has been investigated from a point of view of a slab temperature. Then, we have made a numerical model to estimate the change in slab temperature from a meniscus to a crater-end as well as the growing process of shell thickness, and calculated the temperature process of slab and the position of crater-end under various conditions. Also, the effect of the thermal insulator, the casting speed and the width as well as length of the secondary cooling zone on the slab temperature has been studied to find out the optimal condition for producing slabs with a possibly high temperature. Next, we have numerically examined whether or not the slab transported directly from the continuous casting machine is permissible to be hot-rolled under such a temperature condition. The results so obtained show the possibility of direct rolling for producing hot coils thicker than 2mm.

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© The Iron and Steel Institute of Japan
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