Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
REFRACTORY PRODUCT FOR USE IN CONTINUOUS CASTING, AND REFRACTORY PRODUCT MEMBER
The present invention improves corrosion resistance and thermal shock resistance of a refractory product and a refractory member for continuous casting. A refractory product according to the present invention contains a free carbon component in an amount of 10% by mass to 30% by mass, and the remainder in which: a main mineral phase is comprised of one or more selected from the group consisting of corundum, spinel, and periclase, wherein the content of the periclase is less than 40% by mass; and the total content of a silica component and a silicon carbide component is less than 15% by mass. When a remainder after excluding a composition comprised of the free carbon component from a composition of the refractory product is defined as 100% by volume, refractory particles having a particle size of greater than 0.3 mm account for 20% by volume or more, and refractory particles having a particle size of 0.045 mm or less account for 3% by volume to 30% by volume, wherein an approximately continuous void layer is 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, wherein the approximately continuous void layer has a similar shape to the coarse particle. 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.
REFRACTORY PRODUCT FOR USE IN CONTINUOUS CASTING, AND REFRACTORY PRODUCT MEMBER
The present invention improves corrosion resistance and thermal shock resistance of a refractory product and a refractory member for continuous casting. A refractory product according to the present invention contains a free carbon component in an amount of 10% by mass to 30% by mass, and the remainder in which: a main mineral phase is comprised of one or more selected from the group consisting of corundum, spinel, and periclase, wherein the content of the periclase is less than 40% by mass; and the total content of a silica component and a silicon carbide component is less than 15% by mass. When a remainder after excluding a composition comprised of the free carbon component from a composition of the refractory product is defined as 100% by volume, refractory particles having a particle size of greater than 0.3 mm account for 20% by volume or more, and refractory particles having a particle size of 0.045 mm or less account for 3% by volume to 30% by volume, wherein an approximately continuous void layer is 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, wherein the approximately continuous void layer has a similar shape to the coarse particle. 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.
REFRACTORY PRODUCT FOR USE IN CONTINUOUS CASTING, AND REFRACTORY PRODUCT MEMBER
FEUERFESTES PRODUKT ZUR VERWENDUNG BEIM STRANGGIESSEN UND FEUERFESTES PRODUKTELEMENT
PRODUIT RÉFRACTAIRE DESTINÉ À ÊTRE UTILISÉ DANS UNE COULÉE CONTINUE ET ÉLÉMENT DE PRODUIT RÉFRACTAIRE
LI LING (Autor:in) / MORIKAWA KATSUMI (Autor:in) / MATSUMOTO SHIGEFUMI (Autor:in)
23.10.2024
Patent
Elektronische Ressource
Englisch
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