由于一次合金在酸性电炉中吹炼进行精炼,炉子寿命一般都较低,特别是粗镍合金在浇注前需用碱性溶剂去磷,对炉衬和炉顶的侵蚀很快,有的甚至一昼夜就要换一次炉。许多单位不得不采用成本较贵的碱性耐火材料作炉衬、炉顶。然而,实践证明:因一次合金中含有较多的酸性磷化物,它对碱性炉的侵蚀也是严重的,其寿命同样也不是很理想的(某厂用碱性 Since an alloy is refined by smelting in an acidic electric furnace, the life of the furnace is generally low. In particular, the crude nickel alloy needs to be dephosphorized with alkaline solvent prior to pouring, and the lining and the roof of the furnace erode very quickly. Some even day and night To change the stove Many units have to use the more expensive alkaline refractory lining, roof. However, practice has proved that: because of an alloy containing more acidic phosphide, it is also a serious erosion of alkaline furnace, its life expectancy is also not very satisfactory (a plant with alkaline