作者：Ryohei SUZUKI, Wei LIN and Masanori OGATA

作者单位：

刊名：Journal of the Technical Association of Refractories, Japan

ISSN：

出版年：2013-08-01

卷：33

期：3

起页：

止页：

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语种：英文

关键词：submerged entry nozzle, carbon-free refractories, spinel, glass-bearing microstructure. wettability

内容简介

Preventing the adhesion of alumina on a submerged entry nozzle (SEN) is of great importance not only to avoid trouble in the casting operation but also to eliminate biased molten steel flow in the mold and to reduce the incidence of large inclusions due lo the adhered alumina dropping into molten steel". The mechanism of alumina adhesion can be classified into two types: oxidation of dissolved aluminum by CO and SiO gases emitted from the SEN refractory, and direct adhesion of alumina inclusions suspended in the molten steel''.