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鐵水預脫鉻一選擇性氧化原理的應用

  • 摘要: 在本文中,討論了鐵水予脫鉻的合理目標,介紹Cr-C選擇氧化臨界溫度的計算方法,提出根據搖包脫鉻的實際經驗,估算的鐵水予處理爐渣中Cr2O3活度系數的數據。據此擬訂的在氧氣搖包采用多段吹氧一空搖工藝的大致溫度制度,用以指導鐵水予脫鉻實驗室模擬試驗和半工業性試驗,曾得到很好的鐵水脫鉻保碳效果,獲得了完全符合煉鋼要求的半鋼。在本文中還論證了在多段吹氧一空搖工藝中空搖的重要作用。

     

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