| 摘要 |
A coating compound for silica bricks, particularly silica bricks intended for use in the construction of pitch coke ovens, where it is necessary to protect the bricks against penetration of liquid and gaseous substances and impede the formation of graphite incrustations. The bricks are coated with a suspension of water-glass powder and glass powder together with a stabilizer such as hydroxyethyl cellulose in a concentrated water solution. After being coated with the suspension, the bricks are dried and baked to produce a substantially sealed and smooth surface.
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