| 摘要 |
PURPOSE:To provide the nozzle for continuous casting which exhibits an effect of preventing adhesion of alumina and realizes excellent erosion resistance by supplying CaO of broad amts. optimum according to the amt. of the alumina in steel over a long period of time. CONSTITUTION:At least nozzle refractories contg. 30 to 90wt.% one or >=2 kinds selected from a group consisting of a calcium zirconate clinker of 0.1 to 65wt.% CaB6 and 16 to 31wt.% CaO content, calcium zirconate clinker of <16wt.% CaO content and zirconia and 5 to 40wt.% carbon raw material are disposed in the inside pipe of the nozzle for continuous casting. |
