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Reinforcements (process (1.batching (Raw materials: silica, alumina,…
Reinforcements
process
1.batching
Raw materials: silica, alumina, limestone,
MgO
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3.fiberization
• Extrusion and attenuation.
Extrusion : molten glass passes out through a bushing made of an erosionresistant platinum/rhodium alloy with very fine orifices.
Attenuation:process of mechanically drawing the extruded streams
of molten glass into fibrous element called filaments
4.coating/sizing
chemical coating, or size, is applied
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Purpose of sizing– Promotes easy fiber wetting & processing
Better resin and fiber bonding
Protects fibers from breakage during
processign and handling
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Glass fiber
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Raw materials: silica sand, limestone, boric acid,
clay
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Glass, carbon, aramid fibers
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