Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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Filing date
Publication date
Application filed by Sumitomo Metal Industries LtdfiledCriticalSumitomo Metal Industries Ltd
Priority to JP21170687ApriorityCriticalpatent/JPS6453747A/en
Publication of JPS6453747ApublicationCriticalpatent/JPS6453747A/en
PURPOSE:To stabilize the quality by controlling a molten metal level to the optimum by using a correction parameter based on a molten steel flow amt. gain found from an effective through hole area which is estimated from a casting speed, tundish level and casting size. CONSTITUTION:A molten steel is cast in a mold 3 via a dipping nozzle 2 from a tundish 1 and the flow amt. thereof is adjusted by the sliding gate 5 driven by a cylinder 4. In this case, the error in the measuring value by the molten metal level gage 6 using a gamma line and the set value is corrected by amending the parameter of PID arithmetic part 8a. By this method, the quality can be improved.
JP21170687A1987-08-261987-08-26Method for controlling molten metal level inside mold of continuous casting
PendingJPS6453747A
(en)