ΠK—120～240电炉,是熔铝专用电炉,是苏联早期产品,它的使用寿命,一般决定其炉底寿命、材料含铁量的高低、马弗管(导电管砖)的击穿等三部份,第三部份在ΠK—120～240 电炉的改造中有一定地位,这里着重介绍马弗砖的改造情况。 一、马弗砖(管砖)的寿命因素分析 马弗砖是矽碳棒冷端的支承孔 Π K-120 ~ 240 electric furnace, is a special furnace for melting aluminum, is the Soviet Union’s early products, its service life, generally determine the bottom life, the level of material iron content, muffle tube Part, the third part in the transformation of ΠK-120 ~ 240 electric furnace has a certain position, here focuses on the reconstruction of muffle brick. First, the brick brick (brick) life factor analysis Muffle brick is the cold end of the silicon carbide support hole