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作者：MASAKAZU IIDA;KAZUHIRO OGURA;TETSUI HAKONE;

作者單位：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

起頁：118

止頁：0

分類號：TQ175

語種：英文

關鍵詞：

內容簡介

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.