RHにおける極低炭素化・極低窒素化促進技術

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タイトル別名
  • Technologies for Producing the Ultra Low Carbon and Nitrogen Steel in RH Degasser
  • RH ニ オケル ゴクテイ タンソカ ゴクテイチッソカ ソクシン ギジュツ

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抄録

Experimental and theoretical studies were carried out to understand the behavior of carbon content and nitrogen content during RH treatment.<BR>A new model for decarburization was developed to estimate the decarburization rate and to predict the carbon content. This model clarified the effects of carbon content, oxygen content, argon gas flow rate, the pressure in the vessel and the cross section area of the vessel on the decarburizaion rate. With helium detection, it was found that air invaded in molten steel through the down leg snorkel. A new snorkel with argon sealed protected the air suction, and it made possible to produce the ultra low nitrogen steel.

収録刊行物

  • 鉄と鋼

    鉄と鋼 85 (3), 216-220, 1999

    一般社団法人 日本鉄鋼協会

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