PROTECTIVE COATING MATERIAL FOR REFRACTORY MATERIAL MEMBERS OF AN INGOT MOULD FOR CONTINUOUS CASTING OF METALS AND REFRACTORY MATERIAL MEMBER PROTECTED WITH THE AID OF THIS COATING MATERIAL

摘要

The present invention relates to a protective coating material for a refractory member of an ingot mold for continuous casting of metal, in particular steel, wherein the protective coating material comprises dispersion of particles in a solvent, and the particles are essentially boron nitride and zircon. At least one metal oxide of zirconia, alumina and silica, wherein the boron nitride represents 20-50% by weight of the particles.;The present invention also relates to a refractory member of an ingot mold for continuous casting of metal, in particular steel, wherein the refractory member is a protective layer 13, 14, 14 'obtained by applying a protective coating material of this type and then drying it. It is characterized by being coated. This refractory member may in particular be a casting nozzle 7 or side walls 4, 4 ′ for continuous casting between rolls.