ONNLINE CHILL REMOVING METHOD OF CONTINUOUS CASTING CAST IRON PLATE

摘要

PURPOSE:To continuously resolve and remove the chill which has been crystallized, by installing the separated auxiliary heating furnace close to the cooling box, and heating the chill generation part of the drawing steel piece corner. CONSTITUTION:The heating furnace 7 which for instance, has been vertically divided into two is installed between the support rolls which are located close to the cooling box, gas for combustion is blasted into the furnace 7 from the inlet 8, and the combustion gas is exhausted from the exhaust port 13. The corner part of the casting piece 1 is heated to, for instance, to about 940 deg.C by properly adjusting the position of the heating furnace 7, and the gas blast amount. The chill texture which has been crystallized in the corner part or the end part of the casting piece 1 is continuously resolved and removed by on-line by heating the aforesaid corner part concentrically.