方坯连铸机大部分结晶器设足辊,其作用是引导引锭杆进入结晶器,同时也对钢管起保护作用,防止穿引锭杆时引锭头碰坏钢管下口;足辊的另一个作用是对拉出结晶器的铸坯起支承和导向作用,即对初出钢管的薄弱坯壳起支承作用,减少铸坯变形或漏钢,也可减轻铸坯对钢管下口的磨损·连铸界 Billet caster most of the mold set foot roller, its role is to guide the dummy bar into the mold, but also play a protective role of the steel to prevent the introduction of the dummy bar when the head of the ingot touch the mouth under the pipe; foot roller The other function is to support and guide the billet pulled out of the mold, that is to say, to support the weak billets of the billet, to reduce the deformation or leakage of the billet, and to reduce the wear of the billet on the lower opening of the steel tube. Continuous casting community