苏联电极厂石墨化炉热絕緣材料采用两种混合料,一为炉底用混合料,一为热絕緣混合料。前者鋪撒在炉底,后者涂在炉壁和炉頂。两种混合料的制备和使用都有一定困难。工厂的炉底混合料組成为:5份焦末,1份砂子;热絕緣混合料組成为:60％返回混合料,25％焦末,10％木屑和5％砂子。主要 Soviet electrode factory graphitization furnace thermal insulation material using two kinds of mixture, one for the furnace bottom mixture, a heat insulation mixture. The former sprinkled on the hearth, the latter painted on the furnace wall and roof. Preparation and use of both mixtures have some difficulties. The furnace bottom mix consists of 5 parts of coke and 1 part of sand. The thermal insulation mix consists of 60% recycled mix, 25% coke, 10% sawdust and 5% sand. main