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MUNSTYCKE FOER ETT SYREINSPRUTNINGSROER FOER AVLAEGSNANDE AV KOL UT GJUTJAERN OCH ANVAENDNING AV DETSAMMA FOER AVLAEGSNANDE AV KOL UR KROMGJUTJAERN
MUNSTYCKE FOER ETT SYREINSPRUTNINGSROER FOER AVLAEGSNANDE AV KOL UT GJUTJAERN OCH ANVAENDNING AV DETSAMMA FOER AVLAEGSNANDE AV KOL UR KROMGJUTJAERN
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机译：用于从铸铁中去除碳的氧气注入规程的喷嘴以及用于从铬铸铁中去除碳的相同方法
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摘要
A nozzle is disclosed for use in the decarburization of molten pig iron by means of a jet of oxygen from a lance provided with such nozzle. The nozzle according to the invention is characterized by a divergent portion which, beyond the neck, has a frustoconical part, with an apex angle of between 60 DEG and 70 DEG and preferably between 62 DEG and 66 DEG , and wherein an angle of 65 DEG is preferred. The nozzle according to the invention can be used in particular for the decarburization of chromium containing pig iron and makes it possible to achieve very high chromium and iron yields.
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