ストリップキャスター用モールドロールの温度と変形

概要

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The purpose of this paper is to discuss the temperature and deformation of strip caster's mold roll. At first roll temperature was calculated by one-dimensional analysis using heat transfer coefficient derived from cooling water temperature increase and roll back temperature of strip caster's roll of pilot plant. Two-dimensional analysis was carried out more over. It was found that the temperature unevenness of mold roll surface is small due to the cooling water jacket set up cyclical. Next, the influence of the mold roll temperature was examined on sleeve thickness and welding thickness and on sleeve material and welding material. It was found that the higher temperature and lower temperature was raised as increase of sleeve thickness and welding thickness but temperature difference was decreased. Using the results of two-dimensional thermal analysis, the deformation of roll by thermal expansion was calculated by non-linear analysis. The predicted strip profile derived from roll surface profile was compared with the profile of a strip cast by pilot plant. And so flat strip could be cast.
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