Abstract: The invention is to provide a magnesium alloy material such as a magnesium alloy cast material or a magnesium alloy rolled material, excellent in mechanical characteristics and surface precision, a producing method capable of stably producing such material, a magnesium alloy formed article utilizing the rolled material, and a producing method therefor. The invention provides a producing method for a magnesium alloy material, including a melting step of melting a magnesium alloy in a melting furnace to obtain a molten metal, a transfer step of transferring the molten metal from the melting furnace to a molten metal reservoir, and a casting step of supplying a movable mold with the molten metal from the molten metal reservoir, through a pouring gate, and solidifying the molten metal to continuously produce a cast material. In a process from the melting step to the casting step, parts contacted by the molten metal are formed by a low-oxygen material having an oxygen content of 20 mass % or less.

Abstract: An integrated metal processing facility in which molten metal is poured into a series of molds at a pouring station to form metal castings, which are then transferred to a heat treatment line. Prior to introduction of the castings into a heat treatment station of the heat treatment line, the castings are subjected to heating sufficient to arrest cooling of the castings at or above a process control temperature for the metal thereof.

Abstract: The present invention develops a manufacture method, via conventional liquid metallurgy, of finished and semi-finished metallic parts as casting, ingot, blooms and slabs in alloys base Fe, base Ni and base Co, microstructurally reinforced with complex molybdenum and titanium carbide particles, by means of their previous elaboration and latter addition to the molten alloy in the melting furnace. Then, when the alloy solidifies, they are inserted and distributed within the grains of the base metallic matrix, enhancing their mechanical properties and behavior at room as well as at high temperatures.

Abstract: The present invention relates to a method for producing grain refined Mg and Mg alloys by solidifying molten Mg or Mg-alloys in the presence of ZrB2 or ZrC particles leading to a grain refined microstructure. The particles have an average particles size less than 20 ?m and larger 0.1 ?m and are either produced by an in situ formation within the melt or by a high temperature treatment of an intimate mixtures of zirconium oxide and carbon black and in case of ZrB2 additionally a suitable boron source like boron carbide or boron oxide or boron followed by a milling and de-agglomeration procedure. The method according to the invention leads to grain refined Mg or Mg alloys with an average grain size less than 100 ?m.

Abstract: A quiescent melt handling system includes a holding furnace (2, 120, 320-720) for a molten metal melt. The holding furnace has a relatively large surface area and a relatively shallow depth, having a width to depth ratio in the range of 4-100 to 1. Also provided is structure (650-680) in the holding furnace for separating inclusions from the melt in the holding furnace. A quiescent transfer casting method includes melting a metal to form a melt and transferring the melt into a holding furnace. A hydrogen content in the melt is passively equilibrated with a dry atmosphere maintained in the holding furnace. Subsequently, the melt is withdrawn from the holding furnace.

Abstract: A Zn—Al alloy excellent in static deformability as well as dynamic deformability and applicable to large-sized structures, and a method for production thereof. The alloy contains 30-99% Zn, with the remainder being Al and inevitable impurities, and has a metallographic structure in which the ? phase or ?? phase having an average grain size no larger than 5 ?m contains the ? phase finely dispersed therein, the Al inclusions have a maximum equivalent circle diameter no larger than 50 ?m and are free of pores no smaller than 0.5 mm in terms of equivalent circle diameter, and the macrosegregation of Al is less than 3.0% and the microsegregation of Al is less than 2.0%. (% means mass %.

Abstract: A melt of a hydrogen storage alloy having an arbitrary composition is cooled gradually at a cooling rate of 5° C./min or less and solidified. Alternatively an alloy having an arbitrary composition, after heating to a temperature equal to or more than a melting point thereof, is cooled gradually at a cooling rate of 5° C./min or less and solidified. Thereby a homogeneous alloy reduced in segregation, precipitates, or inclusions is obtained. The homogeneous alloy is excellent in the hydrogen storage amount, in the plateau property and in durability.

Abstract: An alloy is disclosed which contains at least four components. The alloy has a bulk structure containing at least one amorphous phase. The alloy composition follows an “80:20 scheme”, i.e., the alloy composition is [(AxD100?x)a(EyG100?y)100?a]100?bZb with the number “a” being approximately 80. Preferably, component A is Zr. The other components D, E, G and, optionally, Z are all different from each other and different from component A. A preferred system is Zr—Cu—Fe—Al. Further disclosed are Cu-free systems of the type Zr—Fe—AI-Pd/Pt. Importantly, the alloy is substantially free of nickel. This makes the alloy especially suitable for medical applications. Methods of preparing such an alloy, uses of the alloy and articles manufactured from the alloy are also disclosed.

Abstract: A Co-based alloy being useful as a spiral spring, common spring, wire, cable guide, steel belt, build-up material, guide wire, stent, catheter, etc. There is provided a Co-based alloy having a composition of Co—Al binary system containing 3-13% Al loaded with at least one workability enhancing element selected from among 001 to 50% Ni, 0.01 to 40% Fe and 0.01 to 30% Mn and having a lamellar structure wherein f.c.c. structure ?-phase and ?(B2)-phase are repeated in layers. The lamellar structure is so regulated that the occupancy ratio of the whole structure is 30 vol. % or above and the layer spacing is 100 ?m or less. The Co-based alloy may contain at least one optional component selected from among Ga, Cr, V, Ti, Mo, Nb, Zr, W, Ta, Hf, Si, Rh, Pd, Ir, Pt, Au, B, C and P may be added in a total amount of 0.01 to 60%.

Abstract: High strength, thermoplastically processable (TPF) amorphous alloys composed of Beryllium and at least one ETM and at least one LTM, as well as methods of processing such alloys are provided. The TPF alloys of the invention demonstrate good glass forming ability, low viscosity in the supercooled liquid region (SCLR), a low processing temperature, and a long processing time at that temperature before crystallization.

Abstract: Low density Be-bearing bulk amorphous structural alloys with more than double the specific strength of conventional titanium alloys and methods of forming bulk articles from such alloys having thicknesses greater than 0.5 mm are provided. The bulk solidifying amorphous alloys described exclude late transition metal components while still exhibiting good glass forming ability, exceptional thermal stability, and high strength.

Abstract: Alloys for medical, surgical and microsurgical instruments are proposed which comprise 0.01% to 20% by weight of germanium, from 0-25% of shallow hydrogenic and/or non-hydrogenic acceptor dopants in terms of weight ratio in relation to germanium, from 0% up to 20% by weight of one or more of the following compounds such as platinum, gold, palladium, iridium, ruthenium, osmium, rhodium, niobium, tantalum, tungsten, aluminium, silicon, hafnium, yttrium, lanthanum, zirconium with the remainder, up to 100% by weight, constituted by silver and inevitable impurities, wherein instruments from these alloys possess properties such as no capacitive impedance in relation to the electrode-tissue interface; a Far Infrared Radiation (FIR) emitting capacity when energized by any form of energy; sulfurization, corrosion and oxidation resistant and have suitable hardness for their intended use; emit anions and may possess fractal surfaces.

Abstract: A master metal composition adapted for alloying with silver to give an alloy containing at least 77 wt % Ag and at least 0.5 wt % Ge comprises Cu, Ge and boron together with any further ingredients for said alloy and any impurities. It further provides a process for making silver alloy containing silver in an amount of at least 77 wt % Ag, 1-7.2 wt % Cu copper, at least 0.5 wt % Ge and B together with any further ingredients for said alloy and any impurities, comprising the step of melting together fine silver and a master metal composition which is at least a ternary alloy of copper, germanium and boron, e.g. 92.5-92.8 wt % Ag, 6.0-6.3 wt % Cu, about 1.2 wt % Ge and 1-15 ppm boron as grain refiner. The resulting silver alloy exhibits good tarnish and firestain resistance and can exhibit significant precipitation hardening on gradual air cooling.

Abstract: Thus, as shown by an exact electrodynamic computation of EMBF and the estimations described above of the velocity of turbulent flows arising due to their effect, application of amplitude- and frequency-modulated helically traveling (rotating and axially traveling) electromagnetic fields in metallurgical and chemical technologies and foundry can considerably increase the hydraulic efficiency of MHD facilities, intensify the processes of heat and mass transfer in technological plants, significantly increase their productivity, considerably decrease energy consumption for the production of metals, alloys, cast articles, and chemical products, and improve their quality.

Abstract: A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of nozzles mounted in preset positions corresponding to the known indexed positions of the castings passing through the heat treatment station. The nozzles apply fluid to the castings for heat treating the castings and degrading the sand cores for removal from the castings.

Abstract: A method of manufacturing the caliper body of a vehicular disc brake by the gravity casting method. The caliper body is used for the vehicular disc brake wherein a pair of frictional pads are disposed opposite to each other with a disc rotor held therebetween. The caliper body has a cylinder disposed on one side of the disc rotor, a reaction pawl disposed on the other side of disc rotor, and a bridge for coupling the cylinder and the reaction pawl on the outer peripheral side of the disc rotor. A sprue is provided in the bottom portion of the cylinder, and the caliper body is cast by a cavity with the side of molding the bottom portion of the cylinder disposed in the upper part of and in the vertical direction of the cavity and with the side of molding the reaction pawl disposed in the lower part of and in the vertical direction thereof.

Abstract: A molten zinc alloy, which contains 4–22 mass % Al, 1–7 mass % Mg and optionally one ore more of Ti, B and Si at very small ratios, is held at a temperature Th higher than (a solidification-beginning temperature Ts.b.+85° C.) for homogenization, and then cooled down to a temperature Tc equal to (Ts.b.+20–65° C.). After the molten alloy is poured in a mold, it is naturally cooled and solidified to an ingot, while its upper part is being heated. Once an upper surface of the zinc alloy in the mold begins to solidify, it is optionally cooled with water. The produced ingot has a structure without cracks or cavities, so that it is safely fed to a molten pool for replenishment.

Abstract: The invention relates to a method for producing high-performance Cr—Ti—V hydrogen storage alloys utilizing a thermit process, whereby residence of adversely affecting impurities is inhibited, addition of not less than 10 at % of Ti as an alloy component is realized, and thermal burden on the crucible used in the method is reduced. The method includes the steps of: (A) providing an alloy material (1) comprising a Cr oxide, a V oxide, and a reducing agent Al, and an alloy material (2) comprising Ti; (B) placing the alloy materials in a crucible for thermit reduction so that the alloy material (1) is placed above the alloy material (2); (C) igniting the alloy material (1) placed in step (B) and melting all metal elements contained in the alloy materials the with heat of the thermit reaction of the alloy material (1); and (D) making the alloy melt obtained in step (C) into an alloy.

Abstract: A method for removing casting defects (5) from an article (1) with an oriented microstructure can include locating at least one casting defect (5) and melting the casting defect (5) locally by a heat source (7) to a depth at least as great as the casting defect (5) itself. The molten material can then be solidified epitaxially with respect to the surrounding oriented microstructure of the article (1) in a way that the resulting solidified area is substantially free of any defect.

Abstract: A melt of an alloy, represented (Fe1-mTm)100-x-y-zQxRyMz, where T is Co and/or Ni, Q is B and/or C, R is at least one rare-earth element, M is selected from Al, Si, Ti, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb; 10 at %?x?35 at %; 2 at %?y?10 at %; 0 at %?z?10 at %; and 0?m?0.5, is prepared. Next, the melt is brought into contact with, and rapidly cooled and solidified by, the surface of a rotating chill roller. The melt is teemed onto a guide member, of which the guide surface defines a tilt angle with a horizontal plane, runs down on the guide surface, and then is fed through at least one tubular hole onto a contact area on the surface of the chill roller.

Abstract: The invention relates to magnesium-based alloy and, more specifically, to a magnesium alloy composition and methods of producing the same. The alloy has finer grain size, which results in improving mechanical properties of the alloy. Those mechanical properties make the alloy suitable for high-pressure casting. The alloy comprises aluminium, zinc, manganese, silicon, and calcium. A method for producing said alloy consists of loading the alloying components, pouring the molten magnesium, introducing a titanium-containing fusion cake with a flux agent and continuously agitating. The alloy is then soaked and cast.

Abstract: A metallic alloy having a semi-solid range between the liquidus temperature and the solidus temperature of the metallic alloy is processed by cooling the metallic alloy from an initial metallic alloy elevated temperature to a semi-solid temperature of less than the liquidus temperature and more than the solidus temperature, and maintaining the metallic alloy at the semi-solid temperature for a sufficient time to produce a semi-solid structure in the metallic alloy of a globular solid phase dispersed in a liquid phase. The cooling may be accomplished by providing a crucible at a crucible initial temperature below the solidus temperature, pouring the metallic alloy into the crucible, and allowing the metallic alloy and the crucible to reach a thermal equilibrium between the liquidus temperature and the solidus temperature of the metallic alloy.

Abstract: The invention relates to magnesium-based alloys and, more specifically, to a magnesium alloy composition and methods of producing the same. The alloys have improved mechanical properties in that creep ratios are decreased. The magnesium-based alloys comprise aluminium, zinc, manganese and silicon. A method for producing said alloy consists of loading the alloying components, pouring the molten magnesium, introducing a titanium-containing fusion cake with a flux agent and continuously agitating. The alloy is then soaked and cast.

Abstract: A method of continuous casting non-ferrous alloys which includes delivering molten non-ferrous alloy to a casting apparatus. The casting apparatus rapidly cools at least a portion of the non-ferrous alloy at a rate of at least about 100° C. thereby solidifying an outer layer of the non-ferrous alloy surrounding an inner layer of a molten component and a solid component of dendrites. The dendrites are altered to yield cast product exhibiting good resistance to cracking.

Abstract: To make a raw alloy, consisting mostly of amorphous structure, highly productively and at a reduced cost for a nanocomposite magnet, a molten alloy represented by Fe100-x-y-zRxQyMz (where R is at least one element selected from Pr, Nd, Dy and Tb; Q is B and/or C; M is at least one element selected from Co, Al, Si, Ti, V, Cr, Mn, Ni, Cu, Ga, Zr, Nb, Mo, Ag, Pt, Au and Pb; and 1 at %?x<6 at %, 15 at %?y?30 at % and 0 at %?z?7 at %) is prepared. This molten alloy is rapidly cooled by a strip casting process in which the alloy is fed onto a chill roller, rotating at a peripheral velocity of 3 m/s to less than 20 m/s, at a feeding rate per unit contact width of 0.2 kg/min/cm to 5.2 kg/min/cm. In this manner, an alloy including at least 60 volume percent of amorphous phase can be obtained.

Abstract: In accordance with a preferred embodiment of the invention, an alloy or other composite material is provided formed of a bulk metallic glass matrix with a microstructure of crystalline metal particles. The alloy preferably has a composition of (XaNibCuc)100?d?cYdAlc, wherein the sum of a, b and c equals 100, wherein 40?a?80, 0?b?35, 0?c?40, 4?d?30, and 0?e?20, and wherein preferably X is composed of an early transition metal and preferably Y is composed of a refractory body-centered cubic early transition metal. A preferred embodiment of the invention also provides a method of producing an alloy composed of two or more phases at ambient temperature. The method includes the steps of providing a metastable crystalline phase composed of at least two elements, heating the metastable crystalline phase together with at least one additional element to form a liquid, casting the liquid, and cooling the liquid to form the alloy.

Abstract: An iron based alloy material for a thixocasting process and a method for casting the material which extends the service life of dies by inhibiting solidification contraction, and in which casting defects such as size variations and cracks can be inhibited. The material comprises 1.6 wt %?C?2.5 wt % and 3.0 wt %<Si?5.5 wt %, and a carbon equivalent (the value of CE) defined as “C(wt %)+?Si(wt %)” of 2.9 to 3.5. This material is made to be in a half-melted state with 35 to 50 wt % of a solid phase to be cast under a pressure load.

Abstract: A process for producing implants made of a bioresorbable metal, particularly magnesium alloys or zinc alloys, in which the material properties of the magnesium or the zinc are changed and the processing and utilization properties are improved by combining process steps for adjusting the properties of the material and subsequent machining. In this way it is possible to produce thin-walled tubular implants, particularly blood vessel support stents, from bioresorbable magnesium or zinc alloys, which are readily deformable without the risk of fracture during implantation.

Abstract: A novel product composed of a ceramic phase particle dispersoid in metal, including uniformly distributed, finely sized carbide phase particles formed in situ in a molten metal and a novel method for producing such a ceramic phase particle dispersoid in metal are disclosed. A salt-based liquid state reaction involving a liquid metal/alloy containing a liquid Ti, B, Si, Sc, Hf, Nb, Ta, Zr, Mo, Al (when the molten metal matrix is not aluminum), or V and a halide salt containing carbon particles forms a uniform distribution of finely sized ceramic phase particles formed and dispersed in-situ in the metal matrix. The ceramic dispersoid in metal product of the present invention includes at least about 50 volume percent of a matrix metal of aluminum; and up to about 50 volume percent of a uniform distribution of finely sized ceramic phase particles formed and dispersed in-situ in the aluminum metal matrix, wherein the finely sized ceramic phase particles have an average particle diameter of less than about 2.

Abstract: A metallic nanowire having an aspect ratio of at least 100 and a diameter less than 200 nanometers composed of at least one of bismuth, indium, tin, lead, zinc, antimony and alloys of the same and a method of making the same from a thin film composite.

Abstract: A molten zinc alloy, which contains 4-22 mass % Al, 1-7 mass % Mg and optionally one ore more of Ti, B and Si at very small ratios, is held at a temperature Th higher than (a solidification-beginning temperature Ts.b.+85° C.) for homogenization, and then cooled down to a temperature Tc equal to (Ts.b.+20-65° C.). After the molten alloy is poured in a mold, it is naturally cooled and solidified to an ingot, while its upper part is being heated. Once an upper surface of the zinc alloy in the mold begins to solidify, it is optionally cooled with water. The produced ingot has a structure without cracks or cavities, so that it is safely fed to a molten pool for replenishment.

Abstract: A silicon nitride crucible is coated with a crucible release coating for use in directional solidification of multicrystalline silicon ingots. The crucible preferably includes reaction bonded silicon nitride crucible. After removing the silicon ingot, the release coating is easily removed and the crucible can be repeatedly recoated and reused.

Abstract: The present invention is to obtain a Ti—Zn—Mn—V—Fe based hydrogen storage alloy having the excellent hydrogen absorbing and discharging performance at a low cost. An alloy represented by the general formula: Ti1−xZrxMnw−y−zVyFez (wherein 0≦x≦0.5, 0<y≦0.6, 0<z≦0.2, and 1.8≦w≦2.2) is produced using a ferrovanadium (alloy of a V and an Fe) as one of the raw materials. The oxygen content of the alloy is limited to 5,000 ppm or less. A hydrogen storage alloy having the excellent hydrogen absorbing and discharging performance can be produced using an inexpensive ferrovanadium. Furthermore, an impurity oxygen, which adversely effect the performance, can be limited easily.

Abstract: A high strength Mg based alloy and a Mg based casting alloy having a good fluidity and a good mechanical property, and are used to provide a molded article using the alloy. A high strength Mg based alloy, which contains 12 to 20% of Al by weight; 0.1 to 10% of Zn; 0.1 to 15% of Sn; and 0.05 to 1.5% of Mn is used by being injection molded.

Abstract: The invention encompasses a method of forming a metallic article. An ingot of metallic material is provided, and such ingot has an initial thickness. The ingot is subjected to hot forging. The product of the hot forging is quenched to fix an average grain size of less than 250 microns within the metallic material. The quenched material can be formed into a three dimensional physical vapor deposition target. The invention also includes a method of forming a cast ingot. In particular aspects, the cast ingot is a high-purity copper material. The invention also includes physical vapor deposition targets, and magnetron plasma sputter reactor assemblies.

Abstract: A metallic nanowire having an aspect ratio of at least 100 and a diameter less than 200 nanometers composed of at least one of bismuth, indium, tin, lead, zinc, antimony and alloys of the same and a method of making the same from a thin film composite.

Abstract: A palladium-boron composition and methods of making and using same are provided. In one aspect, the invention comprises an alloy comprising palladium and boron, the boron being in solid solution in the palladium and the alloy having a two-phase structure, wherein each phase of the two-phase structure has the same crystal structure as the other phase and has a different set of lattice parameters from the other phase such that the palladium is greatly hardened by the presence of the smaller phase crystals within the spaces between the larger phase crystals. The composition is carefully prepared by a process wherein palladium and an amount of boron sufficient to place the boron in solid solution, but insufficient to combine with the palladium, are placed together and repeatedly arc melted, cooled and turned over until sufficiently mixed.

Abstract: Methods are disclosed for producing in-situ composite solders having a particulate intermetallic phase homogeneously distributed throughout the solder matrix. An eutectic solder is mixed with the components of the intermetallic phase, melted and rapidly cooled to form the desired solder. In-situ composite solder alloys formed by the disclosed method provide greater solder joint strength and fatigue resistance.

Abstract: A manganese alloy sputtering target characterized in that oxygen is 1000 ppm or less, sulfur is 200 ppm or less and a forged texture is provided, and a method for producing a forged manganese alloy target stably by eliminating the drawbacks of manganese alloy that it is susceptible to cracking and has a low rupture strength. A manganese alloy sputtering target which can form a thin film exhibiting high characteristics and high corrosion resistance while suppressing generation of nodules or particles is thereby obtained.

Abstract: A titanium alloy includes a nickel content controlled to a level sufficient to reduce incidence of strain induced porosity upon hot working the titanium alloy relative to incidence of strain induced porosity in a second alloy upon hot working, the second alloy comprising no greater than an impurities level of nickel and otherwise having an elemental composition identical to the titanium alloy.

Abstract: The apparatus for operating on a workpiece includes a die defining first and second apertures and an interior therebetween. The first aperture and the interior of the die are structured to receive the workpiece. The interior of the die can be structured to shape the workpiece into a predetermined configuration. The apparatus includes at least one rotatable pin extending at least partially into the interior of the die. The pin is structured to at least partially stir the workpiece as the workpiece moves through the interior of the die to thereby refine the grain structure of the workpiece.

Abstract: Described is a high quality sputtering target and method of manufacture which involves application of equal channel angular extrusion.

Abstract: A method for the refining of primary silicon in hypereutectic alloys by mixing a hypereutectic alloy and a solid/semi-solid hypoeutectic alloy is described. The method provides control of the morphology, size, and distribution of primary Si in a hypereutectic Al—Si casting by mixing a hypoeutectic Al—Si liquid with one that is hypereutectic to impart desirable mechanical properties.

Abstract: The invention relates to a component produced in one piece from an intermetallic &ggr;-TiAl-based alloy with graduated microstructure transition between spatially adjacent areas each of different microstructure structure, which has a lamellar cast microstructure composed of &agr;2/&ggr; lamellae in at least one area, and a near-&ggr; microstructure, duplex microstructure or fine-lamellar microstructure in at least one other area, and a transition zone with graduated microstructure, in which the lamellar cast microstructure gradually changes into the other named microstructure, is present between these areas, as well as to a process for its production.

Abstract: A hydrogen storage alloy and its production method are disclosed, which has an extremely high effective hydrogen storage capacity in the pressure range from 0.001 to 10 MPa, and a variety of use. The alloy is principally of a body-centered cubic crystal structure, and represented by the compositional formula CraTibVcFedMeXf (M: Al etc.; X: La etc.; 30≦a≦70, 20≦b≦50, 5≦c≦20, 0≦d≦10, 0≦e≦10, and 0≦f≦10, a+b+c+d+e+f=100). The alloy contains 0.005 to 0.150 wt % of O2, and has hydrogen absorption-desorption capability of not less than 2.2% of its weight from 0 to 100° C. and from 0.001 to 10 MPa. The method includes step (a) of melting starting materials for the alloy, deoxidizing step (b) such as step (b1) of blowing Ar into the alloy melt, and casting step (c).

Abstract: A melt of an iron-based rare earth material alloy, represented by (Fe1-mTm)100-x-y-zQxRyMz, is prepared, wherein T is Co and/or Ni; Q is B and/or C; R is selected from Y (yttrium) and the rare earth elements; M is selected from Al, Si, Ti, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb; 10≦x≦30 at %; 2%≦y<10 at %; 0≦z≦10 at % and 0≦m≦0.5. The melt is fed onto a guide to form a flow of the melt thereon and move the melt onto a melt/chill roller contact region, where the melt is rapidly cooled by the chill roller to make a rapidly solidified alloy. An oxygen concentration of the melt yet to be fed onto the guide is controlled at about 3,000 ppm or less in mass percentage.

Abstract: A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of nozzles mounted in preset positions corresponding to the known indexed positions of the castings passing through the heat treatment station. The nozzles apply heat to the castings for heat treating the castings and dislodging the sand cores for removal from the castings.

Abstract: A skinless metal alloy composition free of entrapped gas and comprising primary solid discrete degenerate dendrites homogeneously dispersed within a secondary phase is formed by a process wherein the metal alloy is heated in a vessel to render it a liquid. The liquid is then rapidly cooled while vigorously agitating it under conditions to avoid entrapment of gas while forming solid nuclei homogeneously distributed in the liquid. Agitation then is ceased when the liquid contains a small fraction solid or the liquid-solid alloy is removed from the source of agitation while cooling is continued to form the primary solid discrete degenerate dendrites in liquid secondary phase. The solid-liquid mixture then can be formed such as by casting.

Abstract: The invention concerns a method for making aluminium alloy strips containing (by weight) at least 0.15 to 1.5% Fe and/or 0.35 to 1.9% Mn, with Fe+Mn<2.5% and optionally Si<0.8%, Mg<0.2%, Cu<0.2%, Cr<0.2%, Zn<0.2%, and other elements each <0.1% and <0.3 % in all, by continuous casting between two cylinders cooled and shrinked to a thickness ranging between 1 and 5 mm, the force applied to the cylinders during casting, expressed in tonnes per meter of strip width, being less than 300+2000/e, e being the cast strip thickness in mm. The invention also concerns strips in alloy of the same composition, twin-roll cast between 1 and 5 mm thick and having a product R0.2 (MPa)×A (%) greater than 2500, and preferably than 3000.

Abstract: A manufacturing process for casting amorphous metallic parts separates the filling and quenching steps of the casting process in time. The mold is heated to an elevated casting temperature at which the metallic alloy has high fluidity. The alloy fills the mold at the casting temperature, thereby enabling the alloy to effectively fill the spaces of the mold. The mold and the alloy are then quenched together, the quenching occurring before the onset of crystallization in the alloy. With this process, compared to conventional techniques, amorphous metallic parts with higher aspect ratios can be prepared.