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转炉高温熔渣显微结构研究

Study of the Microstructure of the Liquid Slag at High Temperature in BOF

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【作者】 佟溥翘崔淑贤丁永良

【Author】 Tong Puqiao Cui Shuxian Ding Yongliang (Central Iron & Steel Research Institute, Beijing 100081)

【机构】 钢铁研究总院工艺所!北京100081

【Abstract】 Study was carried out on the microstructure of the three types of slag at high temperature in BOF by means of a hot stage microscope. The results are listed as follows. The phase components in all slag are C 2S、C 3S、(Mg Fe)O as well as C 2F. Under fusibility temperature the three types of slag were heterogeneous phase in which C 3S and RO phase coexisted as solid and C 2S microcrystals separated from liquid at quickly cooling rate, under over heat temperature the slag containing high FeO x low basicity and MgO were homogeneous phasc. But the slag containing high FeO x , high basicity and MgO still was heterogeneous phase. The CaO FeO SiO 2 and C 2S C 3S C 2F ternary diagrams showed that at high temperature C 2S was dissolved into liquid by FeO and C 2F. But C 3S was difficult to dissolve. The slag only with a small amount C 3S and non saturated MgO was homogeneous.

【关键词】 熔渣显微结构
【Key words】 liquid slagmicrosturcture
  • 【文献出处】 矿物岩石地球化学通报 ,BULLETIN OF MINERALOGY PETROLOGY AND GEOCHEMISTRY , 编辑部邮箱 ,1999年04期
  • 【分类号】TF111.17
  • 【被引频次】6
  • 【下载频次】117
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