发明名称 |
PRESSING MATERIAL FOR MENDING BLAST FURNACE WALL |
摘要 |
PURPOSE:To provide a highly durable refractory material for mending furnace wall, hardenable within a limited time even at a low temperature (<=100 deg.C) to exhibit sufficient strength and applied by opening a hole on an iron shell of a furnace wall corresponding to the part where the lining refractory of a blast furnace wall is thinned by corrosion, and filling a pressing material composed of an amorphous refractory through the hole to the thinned part under pressure. CONSTITUTION:The objective pressing material for mending a blast furnace wall is produced by compounding 100wt.% of a refractory aggregate composed mainly of alumina or silica-alumina refractory with 20-50wt.% of a liquid phenolic resin having a number-average molecular weight of 100-250 and 1-15wt.% of magnesium oxide having particle diameter of <=150mum. The material may further be incorporated with <=10wt.% of steel fiber based on 100wt.% of the refractory aggregate. It can be hardened even at a temperature as low as <=100 deg.C to get sufficiently high strength. |
申请公布号 |
JPH04310577(A) |
申请公布日期 |
1992.11.02 |
申请号 |
JP19910075098 |
申请日期 |
1991.04.08 |
申请人 |
HARIMA CERAMIC CO LTD;NIPPON STEEL CORP |
发明人 |
KOJIMA AKIRA;KURUME HIDEO;TAMEHIRO TAIZO;YAMADA KOZO |
分类号 |
C04B35/66;C21B7/06 |
主分类号 |
C04B35/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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