Sprayable material for repairing base plates of ingot molds

摘要

The base plates or stools of ingot molds used in the casting and teeming of molten steel can be repaired by spraying onto the ingot mold base plate from 2-5 gallons of a composition comprising: -Aluminum silicate refractory grain1 50-80% -Al2O3 4.0-17.0% -Bentonite clay 0.2-5.0% -Binder 4.0-25% -75% phosphoric acid 72-82% -Alumina trihydrate 6.2-16.2% -Powdered boric acid 1.0-7.0% -H2O 4.0-14.0% -Water 5-30% -