作者：MASAKAZU IIDA;KAZUHIRO OGURA;TETSUI HAKONE;

作者单位：JFE Refractories Corp

刊名：Journal of the Technical Association of Refractories

ISSN：0285-0028

出版年：2007-01-05

卷：27

期：2

起页：118

止页：0

分类号：TQ175

语种：英文

关键词：

内容简介

The iron corrosion resistance of a tap hole mix, containing a high amount of silicon nitride and silicon carbide, was improved by the addition of Al-containing components (metallic Al and fine Al_2O_3). The increased iron corrosion resistance was attributed to increasing the distribution of Al through the Si-N-O glassy network, which formed because of diffusion of Si and N from silicon nitride. Good results were achieved in an operating blast furnace, with increased tapping time and extension of the tap hole length, by using a tap hole mix to which Al-containing components were added.