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錳鐵

錳鐵
產品名稱:錳鐵

詳細說明

  我國的鐵礦資源豐富,但是錳礦資源分布不均,我國為了解決我國錳礦低的情況,規定了低錳含量的錳鐵牌號。
  在煉鋼中,用作脫氧劑和合金添加劑,是用量最多的鐵合金。冶煉錳鐵用的錳礦一般要求含錳30~40%,錳鐵比大于7,磷錳比小于0。003。冶煉前,碳酸錳礦要先經焙燒,粉礦需經燒結造塊。含鐵含磷高的礦石一般只能搭配使用,或通過選擇性還原煉得低鐵低磷的富錳渣。冶煉時用焦炭作還原劑,某些廠也配用瘦煤或無煙煤。輔助原料主要為石灰,冶煉錳硅合金時一般要配加硅石。

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