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金属学报  1980, Vol. 16 Issue (1): 18-126    
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昆钢赤铁矿球团固结过程中Fe_2O_3的板状生长和交连现象
刘富有
昆钢中心试验室
THE GROWTH AND CROSS-CONNEXION OF Fe_2O_3 PLATELETS IN CONSOLIDATION OF HEMATITE PELLET
Liu Fuyou Central Laboratory of Kunming Iron and Steel Company
引用本文:

刘富有. 昆钢赤铁矿球团固结过程中Fe_2O_3的板状生长和交连现象[J]. 金属学报, 1980, 16(1): 18-126.
. THE GROWTH AND CROSS-CONNEXION OF Fe_2O_3 PLATELETS IN CONSOLIDATION OF HEMATITE PELLET[J]. Acta Metall Sin, 1980, 16(1): 18-126.

全文: PDF(1312 KB)  
摘要: 用扫描电子显微镜等手段观察分析了昆钢赤铁矿球团在1000—1350℃的固结过程.通过断口和磨片的比较,配合以岩相鉴定、电子探针微区成分分析和X射线衍射结构分析,提出了“Fe_2O_3的板状生长和交连”的固结机理.
Abstract:The strengthening process of hematite pellets made from iron ore concentrateof Kunming Iron and Steel Company has been examined by SEM, X-ray diffrac-tion, etc. to ascertain the strengthening mechanism when they were fired undertemperatures between 1000 to 1350℃. The hematite crystallites began to growinto trigonal platelets and to cross-connect each other at temperature up to 1000℃.Until 1200℃, the cross-connexion was further strengthened into solid framework.Thus, it seems to be easily clarified why a rather firm strength of pellets isdisplayed earlier under lower firing temperatures. Perhaps, neither molten slagformed over the surface of hematite crystals with vein and impurities nor a fewof magnetite crystallized out of melt will play a dominante role in the strengtheningprocess of this hematite pellets.
收稿日期: 1980-01-18     
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