Adopting apecial grdae high alumina bauxite and magnesid as princital raw materids, The influence of spinel amd super -micropowder. to castable has been studied.

• 采用特级高铝矾土熟料和镁砂为主要原料,研究了控制尖晶石粉、超微粉对浇注料的影响。