| | | | | Chemical Corrosion Mechanisms of Magnesite-chrome Bricks by Converter Slag | | | The corrosion resistance of four kinds magnesite-chrome bricks against converter salg was investigated by static crucible slag tests. The microstructures of the as-delivered and tested refractories were analyzed by means of SEM and EDS. The results showed that: Different magnesite-chrome bricks have different slag resistances. Generally, the slag resiantance sequence is as follows: rebounded fused magnesite-chrome brick>semi-rebounded magnesite-chrome brick>direct-bonded magnesite-chrome brick>silicate bonded magnesite-chrome brick. Slag reacts with the periclase of magnesite-chrome refractories, which results in the dissoving of periclase in fayalite slag. However, the complex spinels have superior slag resistance.
【分类号】：TQ175
【DOI】：CNKI:SUN:CHRF.0.2007-04-003
【正文快照】：
1 IntroductionOwing to its high temperature stability, moderate-ly low thermal expansion and outstanding slag resist-ance, magnesite-chrome refractories are still widelyused in the industries of iron and steel, cement andcopper[1]. In fact, magnesite-chrome bricks are majorrefractory frequently used for copper production[2-4]. Incopper production, magnesite-chromerefractories bricks are typically used to line the smel-ting, convertering and refining furnaces in areas con-tacting molten matte, … | | |  推荐 CAJ下载  PDF下载 | | | CAJViewer7.0阅读器支持所有CNKI文件格式，AdobeReader仅支持PDF格式 | | | | Chemical Corrosion Mechanisms of Magnesite-chrome Bricks by Converter Slag | | | YU Renhong1;AO Ping1;YUAN Yanyan1;CHEN Qian1;WANG Xiaojun1;LI Yong2;JIANG Mingxue31 College of Material Science and Engineering;Henan University of Science and Technology;Luoyang 471003;China2 College of Material Science and Engineering;University of Science & Technology Beijing3 College of Material Science and Engineering;Xi’an University of Architecture and Technology | | | The corrosion resistance of four kinds magnesite-chrome bricks against converter salg was investigated by static crucible slag tests. The microstructures of the as-delivered and tested refractories were analyzed by means of SEM and EDS. The results showed that: Different magnesite-chrome bricks have different slag resistances. Generally, the slag resiantance sequence is as follows: rebounded fused magnesite-chrome brick>semi-rebounded magnesite-chrome brick>direct-bonded magnesite-chrome brick>silicate bonded magnesite-chrome brick. Slag reacts with the periclase of magnesite-chrome refractories, which results in the dissoving of periclase in fayalite slag. However, the complex spinels have superior slag resistance.
【Keyword】：Converter slag, Corrosion mechanism, Magnesite-chrome brick |
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