The refractory insulating bricks were produced by plastic moulding, taking alumi-na,soft clay,cyanite et al as raw materials.

• 以工业氧化铝、结合粘土、蓝晶石等为原料，应用聚苯乙烯球烧先注和可塑成形法研制成功了耐火隔热砖。