| 摘要 |
PROBLEM TO BE SOLVED: To provide a twin roll casting machine in which roll gap is properly estimated. SOLUTION: This machine is provided with a pair of cooling rolls 1 with which molten steel is solidified and from the roll gap G of which a steel strip 3 is delivered, a non-contact sensor 6 for measuring the thickness distribution in the width direction of the steel strip 3, a marking means 8 for marking a mark 7 on the steel strip 3 for every one rotation of the cooling roll 1, a mark detecting means 9 for detecting the mark 7 marked on the steel strip 3 and a roll gap estimating means 10. The variation of the roll gap G per rotation of the cooling roll 1 is calculated by the roll gap estimating means 10 on the basis of the variation of the thickness distribution in the width direction of the steel strip from a time when the pass of the mark 7 is confirmed to a time when the pass of the next mark 7 is confirmed according to thickness distribution information 12 obtained by the mark detecting sensor 6 and mark pass information 13 obtained by the mark detecting means 9, and it is stored as a data. COPYRIGHT: (C)2006,JPO&NCIPI
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