REFRACTORY PRODUCT FOR USE IN CONTINUOUS CASTING, AND REFRACTORY PRODUCT MEMBER

Abstract: a refractory product contains a free carbon component of 10-30% by mass, and the remainder in which: a main mineral phase includes one or more of corundum, spinel, and periclase, with periclase content less than 40% by mass; and total content of a silica component and a silicon carbide component less than 15% by mass. when the remainder is defined as 100% by volume, refractory particles having particle size of: greater than 0.3 mm account for 20% by volume or more, and 0.045 mm or less account for 3-30% by volume, with a substantially continuous void layer present around each of a plurality of coarse particles at least one of which has the largest particle size among refractory particles in the refractory product. the refractory product has an apparent porosity of 16% or less, and a maximum thermal expansion rate at a temperature up to 1500� c. is 0.6% or less.

Inventor(s): Ling LI, Katsumi MORIKAWA, Shigefumi MATSUMOTO

CPC Classification: C04B35/80 (Fibres, filaments, whiskers, platelets, or the like)

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