通过偏光显微镜对不同碱度司家营铁矿粉烧结矿矿相结构及冶金性能进行了系统研究。结果表明：随着碱度的提高,铁酸钙含量明显增加,磁铁矿、赤铁矿和玻璃质含量逐渐降低;矿相结构由斑状—粒状、骸晶结构过渡到交织熔蚀结构;磁铁矿由自形、半自形晶过渡到他形晶;赤铁矿由菱形定向排列过渡到他形晶;铁酸钙主要由他形晶、板柱状过渡到针状;转鼓强度有明显增加,低温还原粉化性能和还原性都得到明显的改善。
The microstructure and metallurgical properties of different basicity of sinter using sijiaying＇ore fines were investigated by means of polarization microscope. The result shows that： with increase of the basicity of sinter, the content of calcium ferrite is increased obviously, the contents of magnetite, hematite and glassiness are reduced. The microstructure is transformed from porphyritic-granular to interweaving corroded. The shape of magnetic is changed from idiomorphic, hypautomorphic to xenomorphic, the shape of hematite is changed from diamond to xen- omorphic, the shape of calcium ferrite is changed from xenotopic and stylolitic to acerous. The drum strength, RDI and reducing property of sinter are improved.
参考文献
| [1] | 李杰,赵国顺,张玉柱,邢宏伟,胡长庆,李秀.司家营精粉烧结特性试验研究[J].烧结球团,2008(05):15-20. |
| [2] | 黄柱成,韩志国,周节旺,姜涛,杨熙鹏.MgO对以细磁铁精矿为主的烧结矿微观结构的影响[J].钢铁,2005(09):16-20. |
| [3] | 任允芙.钢铁冶金岩相矿相学[M].北京:冶金工业出版社,1982 |
| [4] | 刘丽娜,韩秀丽,白丽梅.澳矿对烧结矿显微结构的影响[J].钢铁钒钛,2008(02):18-22. |
| [5] | 韩秀丽,刘丽娜.印度矿粉对烧结矿矿相结构的影响[J].钢铁研究,2008(04):12-15,28. |
| [6] | 张玉柱,佘雪峰,邢宏伟.不同印度铁矿粉配比烧结矿的显微结构对烧结性能的影响[J].钢铁研究学报,2008(01):59-62. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%