金属学报  1981, Vol. 17 Issue (6): 667-706

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熔铸镁铬砖在炼铜闪速炉中使用后的显微分析

钟香崇;张丽华

洛阳耐火材料研究所;洛阳耐火材料研究所

MICROSTRUCTURE IN FUSION-CAST MAGNESITE- CHROME BRICKS FOR USE IN COPPER FLASH-SMELTER

Zhong Xiangchong(Chung Heung-Sung) and Zhang Lihua (Luoyang Institute of Refractories Research)

钟香崇;张丽华. 熔铸镁铬砖在炼铜闪速炉中使用后的显微分析[J]. 金属学报, 1981, 17(6): 667-706.
, . MICROSTRUCTURE IN FUSION-CAST MAGNESITE- CHROME BRICKS FOR USE IN COPPER FLASH-SMELTER[J]. Acta Metall Sin, 1981, 17(6): 667-706.

摘要 参考文献 相关文章 Metrics 全文: PDF(2394 KB)   摘要: 对炼铜闪速炉用熔铸镁铬砖进行了显微结构研究,测定了主要矿物组成,如方镁石固溶体、晶间尖晶石和镁橄榄石固溶体的含量、晶粒大小及光学性质,推算出近似结构式。分析了结构类型的特征和出现的条件。使用后的砖可分渣层、反应带和未变带。因反应带短和无过渡带,说明低熔点物未能渗透,由化学分析和岩相鉴定,可以判明砖在使用过程中,主要是熔渣中的硅酸铁和铁氧化物溶蚀砖内的方镁石和尖晶石,而方镁石比晶间尖晶石更容易被侵蚀。同时讨论了对砖的显微结构的基本要求以及控制如何形成适合的显微结构的意见。 Abstract：The principal mineralogical constituents of fusion-cast magnesite chrome refractories were identified as periclase solid solution, intergranular spinel and forsterite solid solution. Their amount and composition, their crystal size and some of the optical properties are determined and their empirical formulae have been predicated. The characteristics of each type of microstructure observed as well as the conditions of its formation are discussed. Such brick after service in copper flash smelters may be distinguished into slag zone, reaction zone and unaltered zone. It is due to the thin reaction zone and absence of a transition zone that no penetration of low melting phase has substantially occurred. From the results of chemical analysis and petrological observation of various zones, it may be concluded that the main attack comes from the ferrous silicates and iron oxide in the slag which corrode the periclase and spinel in the brick, and that the periclase is more easily eroded than intergranular spinel. The basic requirements for the microstructure of the brick for service in copper flash smelter are discussed and measures for control of the microstructure have been suggested. 收稿日期: 1981-06-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 钟香崇 张丽华 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1981/V17/I6/667 [1] Alper, A. M., McNally, R. N., Ribbe, P. H. and Doman, R. C., J. Am. Ceram. Soc., 45 (1962) , 263． [2] Alper, A. M., Doman, R. C. and McNally, R. N., High Temperature Oxides, Part 1, Academic Pr., New York, 1970, p. 222． [3] Ibid., p. 249． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed