Chemical Engineering :: Refractory Technology
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Which one expands on heating ?
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Refractoriness/fusion points of 'superduty' refractories is __________ °C.
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Outer combustion chamber of blast furnace stove is lined with __________ bricks.
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Presence of MgO in alumino-silicate refractories __________ its refractoriness.
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Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C.
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Walls, roofs & combustion chambers of annealing furnaces are made of __________ bricks.
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Fireclay bricks are used in the
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Water content in ground refractory material to be shaped into bricks by hand moulding is about __________ percent.
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Chromite refractories
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Firing temperature is minimum (1250-1400 °C) for __________ bricks.
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