초록 ▼

A medium weight abrasion-resistant castable for use as a refractory lining having a bulk density of no greater than 130 lbs/cu ft, and abrasion loss of no greater than about 25 cc and a thermal conductivity of no greater than 5.5 BTU/hr/ft2/in/°F. includes a coarse aggregate of cordierite. The compo

A medium weight abrasion-resistant castable for use as a refractory lining having a bulk density of no greater than 130 lbs/cu ft, and abrasion loss of no greater than about 25 cc and a thermal conductivity of no greater than 5.5 BTU/hr/ft2/in/°F. includes a coarse aggregate of cordierite. The composition also includes an intermediate sized aggregate of calcined kaolin or calcined flint and a finer sized aggregate of calcined kaolin or calcined flint, fly ash cenospheres, clay, fume silica, and cement.

대표청구항 ▼

A medium weight castable for use as a refractory lining characterized by a synthetic cordierite containing material having a grain size of 6×20 Tyler mesh an amount from about 30% to about 50% by weight; calcined kaolin, calcined flint or fused silica having a grain size of less than Tyler 20 in an

A medium weight castable for use as a refractory lining characterized by a synthetic cordierite containing material having a grain size of 6×20 Tyler mesh an amount from about 30% to about 50% by weight; calcined kaolin, calcined flint or fused silica having a grain size of less than Tyler 20 in an amount from about 14% to about 34% by weight; fly ash cenospheres in an amount up to about 6% by weight; air floated clay in an amount up to about 5% by weight; fume silica ultrafine in an amount up to about 5% by weight; and a binder in an amount from about 20% to about 35% by weight.