Si3N4 Bonded SiC Bricks for Blast Furnaces

    Si3N4bonded SiC bricks are produced using high quality silicon carbide andindustrial silicon powder as starting materials, firing at high temperature by thenitridation reaction. Characterized by good thermal shock resistance, goodalkali corrosion resistance, good slag resistance, high strength and highthermal conductivity, the bricks are mainly used in key parts of iron-makingblast furnaces such as the lower part of stack, belly, bosh and tuyere withharsh working conditions. The bricks have been used successfully in more than10 large steel companies such as Baosteel and Wuhan Iron and Steel Corporationin China, and also have been exported to some countries and regions such asRussia.