| 摘要 |
PURPOSE:To reduce development of product defect, such as UT defect, blister, bulging, etc., even in case of high speed casting, by forming the width of an iron core section of a magnetic pole giving static magnetic field, so as to satisfy the specific equation. CONSTITUTION:The width (w) of the iron core section for the magnetic pole 2 giving the static magnetic field is formed, so as to satisfy the equation w=alpha.W under condition of 0.18<=alpha<=0.31. Here, alpha: constant, W: width of casting slab (m). And it is arranged at a mold 4 and the molten steel flow is controlled to restrict by Lorentz force, caused by generating the static magnetic field at vertical direction to the molten steel injecting flow discharged from a submerged nozzle 1 into the mold 4. |
