Reinforced quartz cores for directional solidification casting processes
AssigneeHowmet Research Corporation
InventorsRajeev V. Naik, John Corrigan
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Abstract
A reinforced core for use in metal casting processes, especially directional solidification casting processes, comprises an elongated, thin-walled outer quartz or silica rich tubular member and a carbon base reinforcement disposed in and extending along a length of the tubular member. The carbon base reinforcement can comprise one or more graphite rods cemented together in end-to-end relation or a carbon fiber bundle. The carbon base reinforcement can include an outer carbide surface region by coating or surface reaction.
Claims21
A method of casting a melt, comprising disposing an elongated reinforced core in a mold cavity, said reinforced core comprising an elongated tubular member comprising a material selected from the group consisting of quartz and silica rich material and having a passage and a carbon base reinforcement disposed in and extending along a length of said passage, introducing the melt into said mold cavity about said core, and solidifying said melt.
A method of casting a melt, comprising disposing an elongated reinforced core in a mold cavity, said reinforced core comprising an elongated quartz tube having a passage and a carbon base reinforcement disposed in and extending along a length of said passage, introducing the melt into said mold cavity about said core, and solidifying said melt.
A core for use in casting a melt, comprising an elongated tubular member comprising a material selected from the group consisting of quartz and silica rich material and having a passage, and a carbon base reinforcement disposed in and extending along a length of said passage.
A core for use in casting a melt, comprising an elongated quartz tube having a passage, and a carbon base reinforcement disposed in and extending along a length of said passage.
Dependencies are inferred from the claim text.