Thermal simulation Study on Factors Influencing Bonding Strength of Boundary Surface Between Spray-Mending Layer and Remained Lining of Blast Furnace

摘要

The lining of blast furnace may be damaged partly, so that spray-mending is needed. The bonding strength of boundary surface between the spray-mending layer and remained lining of blast furnace has been studied by thermal simulation. The factors influencing the bonding strength are the ingredient, spray-mending temperature, remained lining condition and water content of spray-mending material. The bonding strength decreases with the increases of remained lining temperature.