Transactions of the Iron and Steel Institute of Japan · 1975 · 10 citations · 0 references
EngineeringMaterials EngineeringManufacturing ProcessesMetallurgyProduction EngineeringAlloysCastingCasting ProceduresMetal CastingPhysical MetallurgySteel MaterialsCast AlloysSteel CastingSteelmaking
L arge nonmetallic inclusions in the slabs cast continuously by the bow-/..ype machine accumulated within the upper part of slab, that is, the inside radius /m rt of casting machine. Nl ost of such nonmetallic inclusions were caused mainly by the erosion of tundish immersion nozzle and by the reoxidation of molten steel secondly. The characteristic accumulation of large non metallic inclusion were caused by the inclination of the upper shell of steel from the vertical during casting and these phenomena were eX/llained theoreticall), . T herefore, the bow-type machine had the disadvantage of trap/ling large nonmetallic inelusions compared with the vertical type and the vertical ty/le with bendillg.