| 摘要 |
A large size cast monolithic refractory module having high dimensional stability, good compressive loading, and good thermal shock resistance in the range of -20.degree. to 1565.degree. Celsius, which module may be used in the repair of the coke oven, and also a process for making such a large size cast module. The large size cast module should be of a size sufficiently large that it can replace all those silica bricks used in a course of bricks to enclose a single flue in a heating wall of a coke oven. A minimum size has a width of at least 35 centimetres, a height of at least 13.5 centimetres, and a length of at least 35 centimetres. The process for making such a module includes the steps of selecting a material which when cast will have the desired characteristics, mixing the dry refractory material with a relatively small amount of water, pouring it into a mold on a shaker table and vibrating the mold when filled, and then by firing the cast material after initial set at progressively higher temperatures up to 425.degree. Celsius over a period of almost 60 hours.
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