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转炉炼钢过程镍氧化物直接合金化的热力学分析
引用本文:邱国兴,王学恩,郭新超.转炉炼钢过程镍氧化物直接合金化的热力学分析[J].山东冶金,2010,32(3):42-44.
作者姓名:邱国兴  王学恩  郭新超
作者单位:莱芜钢铁股份有限公司,山东,莱芜,271104
摘    要:基于钢厂现场条件,对转炉炼钢过程氧化镍直接合金化冶炼耐候钢的可行性进行了热力学分析,结果表明:铁水中固有的C、Si、Mn、Fe等均可作为还原NiO的还原剂元素,在铁水阶段和转炉阶段进行直接合金化是完全可行的。在转炉终点温度T=1960K、w∑FeO=26.4%条件下,终点碳含量若控制在0.031%以上,可保证碳优先于铁还原NiO;若在转炉终点温度T=1960K、wC]=0.04%条件下控制w∑FeO〈22.5%,也可保证碳优先于铁还原NiO。

关 键 词:转炉炼钢  直接合金化  氧化镍  热力学分析

Thermodynamics Analysis on Direct Alloying of Nickel Oxide in Converter Steelmaking Process
QIU Guo-xing,WANG Xue-en,GUO Xin-chao.Thermodynamics Analysis on Direct Alloying of Nickel Oxide in Converter Steelmaking Process[J].Shandong Metallurgy,2010,32(3):42-44.
Authors:QIU Guo-xing  WANG Xue-en  GUO Xin-chao
Affiliation:(Laiwu Iron and Steel Co.,Ltd.,Laiwu 271104,China)
Abstract:Based on the condition of one local steelmaking plant,this article conducted thermodynamics analysis for the possibility of making weathering steels by direct alloying with nickel oxide in the converter.The results showed thatC],Si],Mn]andFe]can reduce NiO and making weathering steels by direct alloying with nickel oxide both in the hot metal and the converter are possible.At the end point of the converte(rT=1960 K,w ∑FeO =26.4%),if the content ofC]is controlled above 0.031%,C]can reduce NiO prior toFe];On the condition of T=1960 K,w C] =0.04%and the content of the FeO in the slag was controlled below 22.5%,C]can reduce NiO prior toFe]too.
Keywords:converter steelmaking  direct alloying  nickel oxide  thermodynamics analysis
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