Abstract: A continuous cast molten metal mold and casting system is disclosed, which may include a heat distribution or temperature management system for billet type molds, a mold assembly expansion system for continuous cast molds and/or an adjustable mold bore length mechanism.

Abstract: A mold (10) for the continuous casting of metal including a cooled running surface (11) and a guide (12) for molten metal. The guide is made of a refractory material and is disposed upstream of the running surface (11) in the direction of flow. The guide (12) is radially prestressed.

Abstract: A cooling chamber design that increases the heat transfer over conventional designs during the casting process of an aluminum cylinder head.

Abstract: There is produced a molten steel containing, in mass %, Si: not less than 0.1% nor more than 7.0%, Mn: 0.1% or more, Al: not less than 0.2% nor more than 5.0%, Cr: not less than 0.1% nor more than 10%, and the like, and a balance composed of Fe and inevitable impurities. To the molten steel, REM: not less than 0.0005% nor more than 0.03% is added. The molten steel to which REM has been added is casted. A cast slab of non-oriented electrical steel is manufactured as above.

Abstract: A casting process and apparatus for producing directionally-solidified castings, and castings produced therewith. The process entails applying a facecoat slurry to a surface within a mold cavity to form a continuous solid facecoat on the surface, introducing a molten metal alloy into the mold cavity so that the molten metal alloy contacts the facecoat, and then immersing the mold in a liquid coolant to cool and solidify the molten metal alloy and form a casting of the metal alloy, during which an oxide layer forms on the casting surface. The facecoat is sufficiently adherent to the oxide layer such that at least a portion of the facecoat detaches from the mold surface and remains tightly adhered to the casting surface in the event the casting contracts during cooling. The facecoat contains at least 60 weight percent of a first phase of yttria, and the balance of the facecoat is a binder phase of an inorganic material.

Abstract: A device for determining the integrity of a greensand mold comprising two or more measurement sensors or plates on a support or supports. The support may comprise a frame straddling a mold production line between the mold machine and the pour station. When the production line is stopped, the measurement sensors or plates are extended to contact opposing sides of a mold and determine electrical characteristics of the mold, including capacitance and inductance. By comparing the electrical characteristics of the mold to the electrical characteristics of recently tested molds in the production line, a determination can be made whether the mold should be used at the pour station.

Abstract: The invention concerns a metal, iron-containing permanent mold, in particular a permanent mold made of steel, which can be subjected to a liquid or flowable aluminum material, and in which a coating for protecting the permanent mold and for achieving an optimal casting result can be produced using a mold release agent. The invention additionally concerns a mold release agent for producing such a coating, and a method for producing such a coating.

Abstract: A core-in-a-core casting method and hybrid core (40) for use in the method. An inner core (42) formed of process-inert particles disposed in a binder material is used as a mold for casting an outer core ((44) formed of particles that will sinter during a subsequent firing step. The inner core provides mechanical support for the outer core during the firing step, and during which the inner core devolves into compacted but unbonded particles that can be removed conveniently from the outer core following the firing step to reveal the fired hollow outer core (44).

Abstract: An electromagnetic stirrer for stirring molten steel of the liquid core in a width-wise direction of the slab includes an iron core disposed with its length-wise axis along a width-wise direction of slab, and a plurality of exciting coils wound around the outer circumference of and about a length-wise axis of the iron core, wherein two-phase or three-phase alternating current is passed through the coils. The phases of the current in the exciting coils are distributed to impart a stirring flow to the molten that includes flow from the minor sides to the center of the slab or from one minor side to the other minor side with a reversing flow at predetermined time intervals.

Abstract: A method for forming an object, including providing at least a first material having a melting point at a first temperature and a second material having a melting point at a second temperature; heating at least a portion of the first and second materials above the first and second temperatures to form a substantially molten alloy, the molten alloy having a solidifying point at a third temperature, the third temperature being less than the first temperature and the second temperature; and providing substantially solid further material to at least a portion of the molten alloy, the further material having a melting point at a temperature greater than the third temperature.

Abstract: A method for manufacturing a mold, including steps of (a) expanding a powder mixture containing a water-soluble inorganic salt powder and a water-soluble organic polymer powder in a plane on a table and then selectively spraying a spray liquid containing at least one selected from a water-miscible organic solvent and water through a nozzle on this powder mixture layer to make a bonding strength among particles of the powder mixture in a sprayed region higher than that among particles of the powder mixture in an unsprayed region, (b) further expanding the powder mixture on the powder mixture layer after spraying and then selectively spraying the spray liquid through the nozzle on this powder mixture layer, (c) repeatedly conducting the step (b) over several times to form a mold shaped by the sprayed regions, and (d) taking out the mold.

Abstract: A dual temperature mold assembly for maintaining a mold cavity used in a cast on strap process at two different temperatures facilitates the removal of the solidified strap after the molten metal is solidified. The mold assembly includes a mold cavity having walls attached to different mold assembly segments that are heated or cooled by thermal energy input and coolant processes which can maintain the mold cavities at different temperatures, so that molten metal around the battery plate lugs in a mold cavity segment is solidified while the sides of the mold cavity are exposed to at least one adjacent heated segment to provide thermal energy thereinto, resulting in a reduction of the amount of molten metal necessary for a cast on strap, and reducing the amount of thermal energy input into the process for manufacturing the straps.

Abstract: A mold for the continuous casting of blooms, slabs or billets is provided with a mold tube (2) and a supporting shell (4) surrounding said mold tube. The mold tube (2) is supported by support profiles (15) on the supporting shell (4) extending in its longitudinal direction and distributed over the periphery and is positively connected thereto via connecting profiles (20) extending in the longitudinal direction. The connecting profiles (20) are respectively configured as profile strips (21, 22) outwardly projecting from the outer periphery of the mold tube (2) and inwardly projecting from the inner periphery of the supporting shell (4), which engage in one another such that in the peripheral direction of the mold a clearance is present. As a result, the stresses, permanent deformation and fatigue cracks produced by the thermal expansion in the mold tube are substantially avoided.

Abstract: The pattern has a pattern material and a casting core combination. The pattern material has an airfoil. The casting core combination is at least partially embedded in the pattern material. The casting core combination comprises a metallic casting core and at least one additional casting core. The metallic casting core has opposite first and second faces. The metallic core and at least one additional casting core extend spanwise into the airfoil of the pattern material. In at least a portion of the pattern material outside the airfoil of the pattern material, the metallic casting core is bent transverse to the spanwise direction so as to at least partially surround an adjacent portion of the at least one additional casting core.

Abstract: The invention relates to a dummy bar (1) for a continuous casting installation for casting a metal strand, including a dummy bar head (2), a transition piece (3) and a link chain (4), wherein the transition piece (3) and/or the link chain (4) are made of a plurality of links (5, 6) that are connected to each other in an articulated manner, and wherein the links (5, 6) can be pivoted relative to each other about a transverse axis (Q) extending perpendicular to the longitudinal axis (L) of the dummy bar (1). In order to particularly prevent internal stresses in the dummy bar when replacing parts of the dummy bar, the invention provides for at least one articulated joint (7) to be configured between two links (5, 6) that are connected to each other in an articulated manner, such that said joint allows a relative pivoting movement of the links (5, 6) about the transverse axis (Q) that is greater than any pivot angle (?) occurring during the use of the dummy bar (1).

Abstract: Four distinct polyphased inductors for a travelling magnetic field and mounted with two inductors per large side on the large sides of the ingot mold, the inductors placed side by side on a same large side of the ingot mold and producing driving forces that push the molten metal, along the width of the ingot mold, both in the same direction, which is a direction opposite to that of the driving forces produced by the two inductors placed opposite on the other large side.

Abstract: Process and related plant for manufacturing steel plates with thickness <100 mm and width of up to 4000 mm from a continuous casting step for slabs, comprising a liquid core reduction step, without interruptions until completion of a finishing rolling step with high reduction ratios in at least one stand. The average temperature when entering the rolling step is ?1200° C., but can be reduced for unalloyed or low alloyed steel greatest.

Abstract: A forging apparatus and a forging method for rheo-casting are disclosed, in which primary rheo-casting using an upper mold and a lower mold, casting of a hub region of a product material using a first roller unit and casting of a rim region of the product material using a second roller unit are accomplished in series, enabling vehicular wheels having relatively complex shapes to be cast via a single casting process. Further, the product material includes wrought 6000 series aluminum alloys, which are easy to process and have relatively high strength and low weight, thus being suitable for the manufacture of vehicular wheels having complex shapes. Furthermore, recycling of the product material is possible.

Abstract: A nucleated casting apparatus including an atomizing nozzle configured to produce a droplet spray of a metallic material, a mold configured to receive the droplet spray and form a preform therein, and a gas injector which can limit, and possibly prevent, overspray from accumulating on the mold. The gas injector can be configured to produce a gas flow which can impinge on the droplet spray to redirect at least a portion of the droplet spray away from a side wall of the mold. In various embodiments, the droplet spray may be directed by the atomizing nozzle in a generally downward direction and the gas flow may be directed in a generally upward direction such that the gas flow circumscribes the perimeter of the mold.

Abstract: In a system for sealing a dummy bar head in a mould of a continuous casting plant for casting large-format preliminary sections, a flat gasket (6) to seal the gap between the dummy bar head and the mould is provided, which is held on a packing plate (7) contained on the dummy bar head. Said packing plate has approximately the cross-sectional shape of the mould profile and covers the flat gasket (6). The packing plate (7) is displaceable towards the centre of the mould by an amount which is a function of the conicity of the mould (3). To this end, it consists of two plate halves (7a, 7b) lying in one plane with respect to each other. This makes it possible, when inserting the dummy bar head, to compensate for the angled course of the mould with the contracting packing plate until the sealing gap between packing plate and mould remains uniform on all sides.