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冲天炉开炉首次放铁水时,如炉温较高则出铁口不难捅开。当炉温偏低且堵出铁口时预热不足时,出铁口很难捅开,只好用钢钎鎯头凿,劳动强度大,不安全。我车间工人经实践
Cupola furnace for the first time put the hot metal, such as high temperature is not difficult to open the tap hole. When the furnace temperature is low and the preheating is blocked when the taphole is blocked, the taphole can not be easily opened and the trowel of the taphole has to be chiselled. The labor intensity is high and unsafe. I workshop workers through practice