摘要 |
PROBLEM TO BE SOLVED: To continuously cast a stainless steel thin cast slab excellent in the surface characteristics without developing surface flaws and the uneven pickling. SOLUTION: In a method for continuously casting the stainless steel thin cast slab while cooling and solidifying molten steel on the peripheral surface of cooling rolls by pouring the moten stainless steel into a molten steel pooling part formed with a pair of cooling rolls having parallel axes and rotated in mutually reverse directions and side weirs, the viscosity at 1400 deg.C of scum floated up on the molten steel surface of the molten steel pooling part is regulated to <=30 Pa.s (desirably, <=5 Pa.s) and this solidified phase is regulated to <=20%. Further, suitably, in the molten steel pooling part, scum weirs having a width of >=90% of the width of the cooling roll are dipped and disposed in parallel with the cooling rolls to flow down the scum into the edge parts of the thin cast slab.
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