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METHOD FOR MEASURING THICKNESS OF SOLIDIFIED SHELL IN CONTINUOUS CASING AND INSTRUMENT THEREFOR
METHOD FOR MEASURING THICKNESS OF SOLIDIFIED SHELL IN CONTINUOUS CASING AND INSTRUMENT THEREFOR
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机译：连续套管中凝固壳厚度的测定方法及其仪器
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摘要
PROBLEM TO BE SOLVED: To enable the accurate measurement of solidified shell in a mold by calculating the increasing part of the solidified shell thickness at a tracing point based on conductive heat flux and the solidified shell thickness just before generating this conductive heat flux, using the increasing part of the solidified shell and drawing-out speed and repeatedly renewing the solidified shell thickness and the position of the tracing point. ;SOLUTION: Molten metal 3 is cooled in the mold 1 arranging thermocouples 2 and continuously drawn out with pinch rolls 5 while forming the solidified shell 4. The molten metal surface level 7, i.e., solidified starting point is measured with a molten metal surface level meter 6. A detecting instrument 8 makes the data of mold temp., the molten metal surface level 7, drawing-out speed and cooling water temp., and gives to an arithmetic device 9, and the distribution of the solidified shell thickness in the mold is displayed on a displaying device 10. According to a prescribed process, the decision of the tracing point of calculating objection of the solidified shell 4 thickness, the conductive heat flux at the tracing point, the solidified shell 4 thickness and drawing-out speed are measured in the real time. By this method, the abnormal operation is detected at early time, and the quality of continuously cast slab and the productivity can be improved.;COPYRIGHT: (C)1998,JPO
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