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 pdf-document (160 kb) |
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| Summary |
FOSCAST delta section is a pre-cast monolithic high alumina
refractory roof for use in electric arc furnaces. |
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| Description |
The FOSCAST delta section replaces the formerly bricked
construction. When assembled, the roof is first gently
dried before use. It is designed for use and compatibility
with monolithic FOSCAST economisers. |
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| Application |
FOSCAST delta roof is supplied in 3 pre-cast individual
pieces. They are of a monolithic construction and are
assembled into a water-cooled delta frame to form a complete
furnace roof. A high alumina refractory castable is used
to seal the 3 sections together. |
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| Function |
Traditionally, electric arc furnace roofs were constructed
of refractory bricks. The lifetime of a FOSCAST delta
roof depends on the individual furnace and steelmaking
practice, but can be expected to be in the order of 2
to 3 times longer than bricked roofs under the same conditions. |
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| Benefits |
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3-section construction provides ease of handling. |
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After assembly the roof becomes a single unit for
maximum strength. |
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Assembly is quick and easy.
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Time between relining is significantly extended.
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