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A casting system and method for producing a metal casting is provided. The metal casting can comprise a fine-grain, homogeneous microstructure that is essentially oxide- and sulfide-free, segregation defect free, and essentially free of voids caused by air entrapped during solidification of the meta

A casting system and method for producing a metal casting is provided. The metal casting can comprise a fine-grain, homogeneous microstructure that is essentially oxide- and sulfide-free, segregation defect free, and essentially free of voids caused by air entrapped during solidification of the metal from a liquidus state to a solid state. The casting system can comprise an electroslag refining system; a nucleated casting system; and a cooling system that cools the metal casting so as to cool a liquidus portion of the metal casting. The metal casting is cooled in a manner sufficient to provide a microstructure that comprises a fine-grain, homogeneous microstructure that is essentially oxide- and sulfide-free, segregation defect free, and essentially free of voids caused by air entrapped during solidification from a liquidus state to a solid state.

대표청구항 ▼

A casting system and method for producing a metal casting is provided. The metal casting can comprise a fine-grain, homogeneous microstructure that is essentially oxide- and sulfide-free, segregation defect free, and essentially free of voids caused by air entrapped during solidification of the meta

A casting system and method for producing a metal casting is provided. The metal casting can comprise a fine-grain, homogeneous microstructure that is essentially oxide- and sulfide-free, segregation defect free, and essentially free of voids caused by air entrapped during solidification of the metal from a liquidus state to a solid state. The casting system can comprise an electroslag refining system; a nucleated casting system; and a cooling system that cools the metal casting so as to cool a liquidus portion of the metal casting. The metal casting is cooled in a manner sufficient to provide a microstructure that comprises a fine-grain, homogeneous microstructure that is essentially oxide- and sulfide-free, segregation defect free, and essentially free of voids caused by air entrapped during solidification from a liquidus state to a solid state. uter radial ply having relatively low-modulus non-metallic cords having an elastic modulus in the range of about 2.5 GPa to about 124 GPa. 10. The pneumatic runflat radial ply tire of claim 1 further characterized by the innermost radial ply being disposed in contact with, and being bonded to, the insert to provide compressive-load-bearing resistance to buckling under runflat conditions. 11. The pneumatic runflat radial ply tire of claim 1 further characterized by the outer radial ply being reinforced by cords constructed of materials from the group including nylon, rayon, aramid, polyester and fiberglass. 12. The pneumatic runflat radial ply tire of claim 1 further characterized by: the innermost radial ply extending continuously between the two annular beads and having turnup ends that are wrapped about the two annular beads; and the outer radial ply extending continuously between the two annular beads and preferably having turnup ends that are wrapped about the two annular beads.