冲天炉在熔化过程中,由于铁水温度低或其他种种原因造成出铁口打不开时,大都是用铁钎捅、大捶打、氧气割。不但劳动强度大,而且还容易损坏出铁口,影响了冲天炉的正常操作。我厂在长期实践过程中,摸索出一个好办法,当出铁口冻结捅不开时,配用直径μ3.2、μ4mm的碳结电焊条,用高温电弧割开出铁口。 Cupola in the melting process, due to the low temperature of the molten iron or other causes of the taphole can not open, mostly with iron brazing, big beating, oxygen cutting. Not only labor-intensive, but also easy to damage the taphole, affecting the normal operation of cupola. In the course of long-term practice, our factory worked out a good method. When the taphole was not frozen, it was matched with a carbon-bonded electrode with a diameter of μ3.2 and μ4mm, and a high-temperature arc was used to cut the taphole.