| 摘要 |
The present invention discloses a type of alloying fine adjustment method in which alloy materials are pulverized into micropowder and fed via the conventional powder spraying system; the said alloy materials are fed into the upper part of the spraying tank of the spraying system whose spraying pipelines are connected to the aerated bricks at the bottom of the molten steel container. Based on the existing argon blowing and mixing system, argon is taken as the carrier and used to pressurize the alloy powders into the aerated bricks at the bottom of the molten steel container via the spraying system and further into the molten steel container for the sake of alloying fine adjustment. After the alloy powders are fed, continue blowing and mixing argons until the alloy powders and the molten steels are evenly mixed in the molten steel container to complete the alloying process. This method features such advantages as short alloying time, good alloying effects, high yield of alloys and absence of pollution.
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