US2010038050A1PendingUtilityA1
Continuous casting of molten steel for sheet metal
Est. expiryAug 22, 2022(expired)· nominal 20-yr term from priority
B22D 41/52B22D 41/02B22D 41/32B22D 11/10C04B 35/013C04B 35/62665C04B 2235/5427C04B 35/06B22D 41/54B22D 41/18C04B 2235/9676C04B 2235/5472C04B 2235/5436
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Claims
Abstract
Disclosed is a method of continuous casting of aluminum-killed steel, using a refractory martial containing 20 mass % or more of CaO.MgO-based clinker. 60% or more of MgO grains included in the grains of the CaO.MgO-based clinker have a diameter of 50 μm or less. The refractory martial is used at least at a portion to be in contact with molten steel. The present invention can reduce the diameter of MgO grains as inclusions in slabs to suppress the occurrence of flaws in a milled sheet metal.
Claims
exact text as granted — not AI-modified1 . A method of continuous casting of molten steel for sheet metal, using a refractory martial containing CaO.MgO-based clinker, wherein 60% or more of MgO grains included in the grains of said CaO.MgO-based clinker have a diameter of 50 μm or less, said CaO.MgO-based clinker is contained in said refractory martial at 20 mass % or more, and said refractory martial containing said CaO.MgO-based clinker is used at least at a portion to be in contact with molten steel.
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