The un fired high alumina bricks are made from calcined one*grade high aluminaacting as the main component,and from less quantity of graphite acting as the reformativeaddition.

• 以一级高铝矾土熟料为制砖主要原料，引入少量石墨为改性剂，并以磷酸铝为主要结合剂制备不烧高铝砖。