A mold is provided for the continuous casting of a liquid metal. The mold includes at least one wall (21) that defines at least part of a casting cavity (22) in which to cast the liquid metal. Cooling devices (23) are configured to cool the wall (21) with a cooling liquid by delivering at least a jet (G) of the cooling liquid in a delivery direction incident against at least one portions of an interface surface of the wall (21).

A mold is provided for the continuous casting of a liquid metal. The mold includes at least one wall (21) that defines at least part of a casting cavity (22) in which to cast the liquid metal. Cooling devices (23) are configured to cool the wall (21) with a cooling liquid by delivering at least a jet (G) of the cooling liquid in a delivery direction incident against at least one portions of an interface surface of the wall (21).

A system for two stage casting of a metal alloy is disclosed that dispenses multiple feedstock metals into an arc melting crucible via a pressurized inert gas or metal vapor chamber to lower the volatilization rate of metals in an arc melting crucible at a rate proportional to the composition of the final desired alloy. The melt from the melting crucible enters a second stage cold wall crucible through a passage, where the melt cools and solidifies. A casting piston is used to slowly and progressively withdraw the solidified alloy from the cold wall crucible as it cools.

A system for two stage casting of a metal alloy is disclosed that dispenses multiple feedstock metals into an arc melting crucible via a pressurized inert gas or metal vapor chamber to lower the volatilization rate of metals in an arc melting crucible at a rate proportional to the composition of the final desired alloy. The melt from the melting crucible enters a second stage cold wall crucible through a passage, where the melt cools and solidifies. A casting piston is used to slowly and progressively withdraw the solidified alloy from the cold wall crucible as it cools.

An aluminum alloy forging formed of an aluminum alloy containing Cu: 0.15% to 1.0%, Mg: 0.6% to 1.35%, Si: 0.95% to 1.45%, Mn: 0.4% to 0.6%, Fe: 0.2% to 0.7%, Cr: 0.05% to 0.35%, Ti: 0.012% to 0.035%, B: 0.0001% to 0.03%, Zn: 0.25% or less, Zr: 0.05% or less (all % given by mass), and a remainder consisting of Al and inevitable impurities, in which a crystal grain diameter where a maximum principal stress is applied is 20 to 40 m. The aluminum alloy forging has a structure in which an average shortest distance from a precipitate having a major axis of 0.1 m or more to a crystal grain boundary in a cross-sectional structure with a visual field area of 8,000 m.sup.2 is in a range of 0.1 m to 2.0 m, and a fatigue life at a load stress of 150 MPa is 610.sup.6.

A system comprising at least one furnace including a melt containing vessel; an intermediate casting product station coupled to the at least one furnace and operable to receive a molten metal from the at least one furnace, the intermediate casting product station including a casting pit, at least one moveable platen disposed in the casting pit, an array of exhaust ports about at least a top periphery of the casting pit, and an array of gas introduction ports about at least the top periphery of the casting pit; and an inert gas source operable to supply an inert gas to the array of gas introduction ports.

A system comprising at least one furnace including a melt containing vessel; an intermediate casting product station coupled to the at least one furnace and operable to receive a molten metal from the at least one furnace, the intermediate casting product station including a casting pit, at least one moveable platen disposed in the casting pit, an array of exhaust ports about at least a top periphery of the casting pit, and an array of gas introduction ports about at least the top periphery of the casting pit; and an inert gas source operable to supply an inert gas to the array of gas introduction ports.

In production of a reactive metal using a melting furnace for producing metal having a hearth, ingots can be efficiently produced by efficiently cooling the ingots extracted from the mold provided in the melting furnace. In addition, an apparatus structure in which multiple ingots can be produced with high efficiency and high quality from one hearth, is provided. A melting furnace for producing metal is provided, the furnace has a hearth for having molten metal formed by melting raw material, a mold in which the molten metal is poured, an extracting jig which is provided below the mold for extracting ingot cooled and solidified downwardly, a cooling member for cooling the ingot extracted downwardly of the mold, and an outer case for keeping the hearth, the mold, the extracting jig, and the cooling member separated from the air, wherein at least one mold and extracting jig are provided in the outer case, and the cooling member is provided between the outer case and the ingot, or between the multiple ingots.

An apparatus and a system including a casting pit; a mold including a reservoir and a cavity; a coolant feed operable to introduce a coolant to a periphery of a metal emerging from the mold cavity; an array of water vapor exhaust ports about at least the top periphery of the casting pit; a mechanism to introduce an inert fluid into the coolant feed. A method for a direct chill casting including, after detecting a bleed out, exhausting generated gas from the casting pit at a flow volume rate that is enhanced relative to a flow volume rate prior to detecting bleed out or run out; introducing an inert gas into the casting pit; and introducing an inert fluid into a coolant feed to the casting mold.

An apparatus and a system including a casting pit; a mold including a reservoir and a cavity; a coolant feed operable to introduce a coolant to a periphery of a metal emerging from the mold cavity; an array of water vapor exhaust ports about at least the top periphery of the casting pit; a mechanism to introduce an inert fluid into the coolant feed. A method for a direct chill casting including, after detecting a bleed out, exhausting generated gas from the casting pit at a flow volume rate that is enhanced relative to a flow volume rate prior to detecting bleed out or run out; introducing an inert gas into the casting pit; and introducing an inert fluid into a coolant feed to the casting mold.