Abstract: A medical instrument comprising a mono-crystalline shape memory alloy and a method for forming thereof.

Abstract: The invention relates to a rotary lobe pump for conveying a fluid medium containing solids, comprising an inlet and an outlet for the medium being conveyed, and further comprising a pump casing and two rotary lobes arranged in said pump casing and having intermeshing rotary lobe vanes. According to the invention, the pump casing has two opposite casing half-shells which seal the pump casing fluid-tightly. The casing half-shells are double-walled.

Abstract: A process and tools for forming and/or releasing metal preforms, metal shapes and solder balls is described incorporating flexible molds or sheets, injection molded metal such as solder and in the case of solder balls, a liquid or gaseous environment to reduce or remove metal oxides prior to or during metal (solder) reflow to increase surface tension to form spherical or substantially spherical solder-balls.

Abstract: Methods of characterizing aluminum oxide defects are described. The oxide defect type, as well as the time when the oxide defects are formed during the aluminum melting and casting processes can be identified quickly.

Abstract: A method of manufacturing spring pallets of a switchable roller finger follower. The method includes the steps of forming the spring pallets of the roller finger follower as a single unit, forming a material web between the spring pallets, and separating the spring pallets apart from each other. Also, an intermediate assembly of the spring pallets of the roller finger follower is disclosed. The intermediate assembly includes a first spring pallet, a second spring pallet, and a material web which extends between the spring pallets, and adjoins the spring pallets together. Further, a method of manufacturing an inner arm of the switchable roller finger follower is disclosed in which the inner arm is formed by sheet metal, preferably by stamping.

Abstract: A secondary stave support for a furnace stave with a water pipe having a first portion of the water pipe external to the furnace stave and a second portion of the water pipe also external to a furnace shell wall comprising: a protection pipe having first and second ends, wherein the protection pipe is coaxially disposed about the water pipe with the first end nearest the stave; and a first gas-tight seal, disposed between the first end of the protection pipe and a third portion of the water pipe, prevents gas flow from within the furnace shell wall into an annular space between the protection pipe and the water pipe.

Abstract: A cast steel railway wheel includes a hub that has an axial bore. A rim is concentric with the bore. A plate extends substantially radially from the hub to the rim. The plate has a front face and a rear face. The plate has a plurality of spokes that extend between the hub and the rim. Adjacent spokes have different thicknesses defined between the front face and the rear face.

Abstract: Hardened amalgams formed from copper mixed with liquid gallium or liquid gallium-indium alloys are used to fabricate sputter targets comprised of copper, gallium and indium (CIG) and targets of selenides of copper, gallium and indium (CIGS). Amalgam hardening occurs by formation of intermetallic compounds at or near ambient temperature as a result of reaction between liquid metals and solid metals in powder form.

Abstract: The present invention relates to seal ring back-up devices suitable for use on glands in sealing systems. In particular, the present invention relates to seal ring back-up devices that have been designed to fit into essentially all types of glands and close extrusion gaps. Some embodiments of the present invention provide a seal ring back-up device having an annular body having an inner diameter, an outer diameter, and a scarf cut; and where the annular body is configured to fit a gland and engage a seal ring.

Abstract: A core for a casting process includes a core body and a first cooling hole forming portion that extends from the core body. The core body includes a varying thickness along a length of the core body. The core body can include an undulating shaped section and can be a ceramic core body.

Abstract: The invention relates to a steel plate, the chemical composition of which comprises, the contents being expressed by weight: 0.010%?C?0.20%, 0.06%?Mn?3%, Si?1.5%, 0.005%?Al?1.5%, S?0.030%, P?0.040%, 2.5%?Ti?7.2%, (0.45×Ti)?0.35%?B?(0.45×Ti)+0.70%, and optionally one or more elements chosen from: Ni?1%, Mo?1%, Cr?3%, Nb?0.1%, V?0.1%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting.

Abstract: Provided herein are titanium alloys that can achieve a combination of high strength and high toughness or elongation, and a method to produce the alloys. By tolerating iron, oxygen, and other incidental elements and impurities, the alloys enable the use of lower quality scrap as raw materials. The alloys are castable and can form ?-phase laths in a basketweave morphology by a commercially feasible heat treatment that does not require hot-working or rapid cooling rates. The alloys comprise, by weight, about 3.0% to about 6.0% aluminum, 0% to about 1.5% tin, about 2.0% to about 4.0% vanadium, about 0.5% to about 4.5% molybdenum, about 1.0% to about 2.5% chromium, about 0.20% to about 0.55% iron, 0% to about 0.35% oxygen, 0% to about 0.007% boron, and 0% to about 0.60% other incidental elements and impurities, the balance of weight percent comprising titanium.

Abstract: A casting apparatus for casting a railcar coupler, which includes a shank portion and a head portion, includes cope and drag portions that define an external shape of the coupler. The casting apparatus also includes one or more cores that define an interior of the shank portion and a separate head core with an exterior that defines an interior of the head portion that includes lock chamber, guard arm side portion, and knuckle side portions of the head. The head core is a single piece with a hollow center section that defines a front face gating system that includes at least one in-gate configured to direct molten material to top and bottom regions of the head to define the lock chamber, guard arm side portion, and knuckle side of the head.

Abstract: A crankshaft is cast in a mold to define a plurality of pin bearing journals and a plurality of main bearing journals, at least one of each has a hollow section extending therethrough. A single core is positioned within the mold to form all of the hollow sections. The single core may include a cross-section defining an elliptical shape to form hollow sections having an elliptical cross-sectional shape to further reduce the weight of the crankshaft. The hollow sections are each positioned along a path that minimizes stress within the crankshaft. The path may include a non-linear path relative to a longitudinal axis of the crankshaft or a linear path angled relative to the longitudinal axis to bend or direct the hollow sections away from high stress regions of the crankshaft. The non-circular cross section of the core may spiral about its own axis to maximize mass reduction.

Abstract: A welding rod for use in applying hardfacing to a surface of a tool includes an elongated, generally cylindrical body including a metal matrix material. The welding rod also includes particles of polycrystalline diamond material carried by the elongated, generally cylindrical body. The particles of polycrystalline diamond material include a plurality of inter-bonded diamond grains.

Abstract: Methods for producing pigs made of a metal alloy, wherein initially a melt is formed in which a basic material and one or several alloy components are present in the liquid state, from which the pigs are formed. In the course of cooling, energy in the form of a variable field, which increases the formation of mixed crystals, is briefly introduced into the melt prior to the formation of the pigs. A pig thereby produced is a cast piece formed from a basic material and one or several alloy components and has been formed from a melt into which energy had been briefly introduced by a variable physical field in order to increase mixed crystal formation.

Abstract: The invention relates to a magnesium alloy containing (in % by weight) more than 0.0 to 7.0% zinc, optionally more than 0.0 to 1.0% zirconium, optionally more than 0.0 to 1.0% calcium, optionally more than 0.0 to 1.0% manganese, optionally more than 0.0 to 0.5% silicon, optionally more than 0.0 to 1.0% silver, a max. up to 0.5% aluminum and at least one element selected from the group comprising more than 0.05 to 0.6% yttrium, more than 0.05 to 4.0% ytterbium, more than 0.05 to 4.0% gadolinium, with the residue being magnesium and impurities due to production. The invention also relates to a use of a magnesium alloy of this type and an implant therefrom and a method for producing a body of a magnesium alloy according to the invention.

Abstract: Certain exemplary embodiments can provide a system, machine, device, manufacture, circuit, and/or composition of matter adapted for and/or resulting from, and/or a method for activities that can comprise and/or relate to, a first form comprising: a plurality of surface artifacts that substantially spatially replicate a surface geometry of a stacked foil mold; and a prong that is adapted to form a hole in a cast product.

Abstract: Provided is bearing steel having excellent fatigue life by minimizing segregation during casting of the bearing steel and reducing the generation of large carbides in a segregation band. The high-carbon chromium bearing steel includes 0.5 wt % to 1.2 wt % of carbon (C), 0.15 wt % to 2.0 wt % of silicon (Si), 0.05 wt % to 0.45 wt % of manganese (Mn), 0.025 wt % or less (excluding 0 wt %) of phosphorus (P), 0.025 wt % or less (excluding 0 wt %) of sulfur (S), 0.1 wt % to 1.6 wt % of chromium (Cr), 0.01 wt % to 0.3 wt % of Ce, and iron (Fe) as well as other unavoidable impurities as a remainder. A method of manufacturing the steel is also provided.

Abstract: A mirror or mirror assembly fabricated by molding, pressing, assembling, or depositing one or more bulk metal glass (BMG), bulk metal glass composite (BMGMC), or amorphous metal (AM) parts and where the optical surface and backing of the mirror can be fabricated without machining or polishing by utilizing the unique molding capabilities of this class of materials.

Abstract: A casting method and a casting device for a cast-metal object which are inexpensive and have a high degree of freedom are provided to cast plural types of cast-metal objects simultaneously. A cast-metal object is cast by using a casting device (10) including a mold structure (5) for forming a casting space capable of filling molten metal; and a runner (1) provided separately from the mold structure (5) for supplying molten metal into the casting space in the mold structure (5) by connecting the runner to the mold structure (5), wherein the runner (1) has a dividable structure, and the mold structure (5) has an assembly structure of a plurality of members.

Abstract: The present invention provides a structure for casting containing an organic fiber, an inorganic fiber, inorganic particles (A) having an average particle diameter of 50 to 150 ?m, and a binder (a), having a surface layer containing refractory inorganic particles (B) having an average particle diameter of 1 to 100 ?m selected from metal oxides and metal silicates, a clay mineral, and a binder (b), on the surface of the structure.

Abstract: A system for transferring molten metal from a vessel and into one or more of a ladle, ingot mold, launder, feed die cast machine or other structure is disclosed. The system includes at least a vessel for containing molten metal, an overflow (or dividing) wall, and a device or structure, such as a molten metal pump, for generating a stream of molten metal. The dividing wall divides the vessel into a first chamber and a second chamber, wherein part of the second chamber has a height H2. The device for generating a stream of molten metal, which is preferably a molten metal pump, is preferably positioned in the first chamber. When the device operates, it generates a stream of molten metal from the first chamber and into the second chamber. When the level of molten metal in the second chamber exceeds H2, molten metal flows out of the vessel and into another structure, such as into one or more ladles and/or one or more launders.

Abstract: Methods of casting improved scroll compressor components having high quality involute portions are provided. The casting method comprises gating molten metal through a patterned region of a core or mold defining the involute vanes. In certain aspects, during casting, molten metal passes through one or more gates that extend through a core in a central patterned region that forms the involute portion of the scroll component. In certain variations, the metal comprises a gray cast iron, so the cast part comprises an involute having a matrix of pearlite and Type A graphite that is substantially free of undercooling defects. Further, in certain variations, the involute portion is substantially free of Types B-E graphite. Thus, high-quality low-defect cast scroll components are formed having good machinability and superior fatigue strength.

Abstract: A profiled binding for use in a roller press. An alloy containing a high degree of chromium is used. A high wear-resistance of the binding is thereby achieved, said binding not being sensitive with respect to build-up weldings in order to reconstruct the profile after wear.

Abstract: A heat sink including a base section, connection fins, and parallel fins. The base section includes: a first base plate configured to be mounted with a heat generating component on its outer surface; a second base plate disposed to face the first base plate in a parallel manner, configured to be mounted with a heat generating component on its outer surface; and a third base plate disposed perpendicular to the first base plate and the second base plate, which secures the first base plate and the second base plate along a junction line. The base section includes first and second regions arranged in the direction of the junction line. The connection fins are disposed on the first region to connect inner surfaces of the first and second base plates and to be parallel to the third base plate, and the parallel fins are disposed on the second region from an inner surface of the third base plate to be parallel to the first base plate.

Abstract: In an aspect the disclosure relates to an alloy comprising, by weight, about 0.15% to about 1.00% zinc, 0% to about 0.20% gallium, and the balance aluminum and incidental elements and impurities, wherein the alloy has a corrosion potential from about ?0.85 V to about ?0.73 V relative to a saturated calomel electrode.

Abstract: An organo-modified silicone obtained by an addition reaction of (I) a chain silicone represented by formula (1): wherein the formula (1), R1s represent hydrocarbon groups having 1 to 3 carbon atoms, and a and b are numbers satisfying conditions represented by the following formulae (i) to (iii): 0?a?195??(i) 5?b??(ii) 10?a+b?200??(iii), with (II) a hydrocarbon such as monoolefins and aromatic hydrocarbons, and (III) a di(meth)acrylic acid ester, at a molar ratio satisfying conditions represented by the following formula (iv): {the chain silicone}:{the hydrocarbon}:{the di(meth)acrylic acid ester}=A:B:C??(iv) wherein the formula (iv), A represents a number of moles of the chain silicone, and B and C are numbers satisfying conditions represented by the following formulae (v) and (vi): 0.05A?C?A??(v) A×b?2C=B??(vi) in the presence of a hydrosilylation catalyst.

Abstract: In a process for the preparation of inorganic sample disks for analysis, the sample, in powdered form, is mixed with a powdered reagent flux which has been pre-melted. In an inert gas atmosphere, the mixture is placed in a graphite crucible and heated to a temperature slightly above 1000° C. After the flux dissolves the sample, a homogenous mix is produced. This mix is then poured into a graphite mold, the bottom of which contains a molten pool of an inert metal, such as gold, which acts as a smooth receiving surface. Upon cooling, the material in the mold solidifies, resulting in a glassy disk that can be analyzed. Cooling can be accelerated by making use of a cooling fluid that has a substantially higher thermal capacity than air.

Abstract: A method of manufacturing a scroll member includes a casting step and a cutting step. In the casting step an iron casting having a spiraling part is formed. In the cutting step, the iron casting obtained in the casting step is cut to obtain a final shape of the scroll member. Preferably the iron casting obtained in the casting step has a fixing part with the spiraling part extending from one side and a protruding part extending from an opposite side. A specified portion of the spiraling part, a central portion of the fixing part and/or the protruding part has a larger dimension before the cutting step is performed than after the cutting step is performed.

Abstract: An aluminium-copper alloy comprising substantially insoluble particles which occupy the interdendritic regions of the alloy, provided with free titanium in quantity sufficient to result in a refinement of the grain structure in the cast alloy.

Abstract: Disclosed is a centrifugal molten metal pump assembly and associated system for controlled delivery of molten metal to molds. The pump assembly comprises a shaft, an impeller coupled to the shaft, a controller to control a rotational speed of the impeller according to a programmable fill profile while delivering the molten metal to the mold. In some embodiments, the pump assembly further comprises a throttle to manipulate a flow rate or pressure of the molten metal relative to a rotational speed of the impeller. The associated system comprises a melting furnace and one or more holding furnaces, each holding furnace including at least one pump assembly therein. Each holding furnace may be of an open configuration to allow for uninterrupted flow of the molten metal from the melting furnace. The system may provide controlled delivery of the molten metal to the mold at a desired flow rate or pressure.

Abstract: An austenitic cast iron according to the present invention is characterized in that: it comprises: basic elements comprising C, Si, Cr, Ni, Mn and Cu; and the balance comprising Fe, inevitable impurities and/or a trace-amount modifier element, which is effective in improving characteristic, in a trace amount; and it is an austenitic cast iron being a cast iron that is structured by a base comprising an Fe alloy in which an austenite phase makes a major phase in ordinary-temperature region; wherein said basic elements fall within compositional ranges that satisfy the following conditions when the entirety of said cast iron is taken as 100% by mass (hereinafter being simply expressed as “%”): C: from 2.0 to 3.0%; Si: from 4.0 to 5.4%; Cr: from 0.8 to 2.0%; Mn: from 3.9 to 5.6%; Ni: from 17 to 22%; and Cu: from 0.9 to 1.6%.

Abstract: A casting of a white cast iron alloy and a method of producing the casting are disclosed. A white cast alloy is also disclosed. The casting has a solution treated microstructure that comprises a ferrous matrix of retained austenite and chromium carbides dispersed in the matrix, with the carbides comprising 15 to 60% volume fraction of the alloy. The matrix composition comprises: manganese: 8 to 20 wt %; carbon: 0.8 to 1.5 wt %; chromium: 5 to 15 wt %; and iron: balance (including incidental impurities).

Abstract: One embodiment provides a method of melting, comprising: providing a mixture of alloy elements that are at least partially crystalline; and heating the mixture in a container to a temperature above a melting temperature of the alloy elements to form an alloy, wherein the container comprises silica, and wherein the mixture comprising Zr and is free of Ti and Be.

Abstract: A rigging system for casting railcar coupler knuckles is provided. The rigging system comprises cope and drag portions of a mold, a down sprue defined in said cope portion, at least one riser defined in said mold, at least two ingates defined at least partially in said mold and connected to said at least one riser, at least two knuckle mold cavities defined in said mold, and wherein said ingates have a non-circular shape.

Abstract: Disclosed is tin characterized in that a sample of the tin after melting and casting has an ? dose of less than 0.0005 cph/cm2. Since recent semiconductor devices are highly densified and of high capacity, there is an increasing risk of soft errors caused by the influence of ? rays emitted from materials in the vicinity of semiconductor chips. In particular, there are strong demands for high purification of solder materials and tin for use in the vicinity of semiconductor devices, and demands for materials with lower ? rays. Accordingly, an object of the present invention is to clarify the phenomenon of the generation of ? rays in tin and tin alloys, and to obtain high-purity tin, in which the ? dose has been reduced, suitable for the required materials, as well as a method for producing the same.

Abstract: A method for loosening a jacket includes the steps of pouring a molten metal into a mold having a jacket attached on its outer surface, while conveying the mold; cooling the mold after pouring while conveying the mold, after the step of pouring; and applying vibration to the jacket after the step of cooling.

Abstract: An ingot includes at least two metals selected from copper, tin, zinc and bismuth, wherein: (a) the ingot is a mechanical ingot, the at least two metals are 40-95 wt. % copper, 3-80 wt. % tin, 1-40 wt. % bismuth and/or 1-80 wt. % zinc, and other metals are present in a collective amount of 0-2 wt. %; or (b) the ingot is a cast ingot, the at least two metals are 40-80 wt. % copper, 3-80 wt. % tin, 1-40 wt. % bismuth and/or 1-80 wt. % zinc, and other metals are present in a collective amount of 0-2 wt. %, provided that when copper is present in the cast ingot in an amount greater than 69 wt. %, zinc is present in an amount less than 30 wt. %. Methods for preparing and casting the ingot are also disclosed, as is a system for casting a copper-bismuth alloy.

Abstract: A ladle for a molten metal includes a main body having a hollow interior and an opening for receiving the molten metal. The main body has a sidewall with a nozzle formed therein. The nozzle defines an axis of rotation for the main body. The nozzle contacts, seals and is in fluid communication with the mold. The nozzle is configured to deliver the molten metal to a mold when the main body is rotated from a first position to a second position.

Abstract: The present invention provides a sealing ring and a preparation method thereof. The sealing ring, based on percent by weight, includes 80%-85% of aluminum, 10%-15% of titanium, 0.1%-1% of scrap iron, and 4%-4.9% of potassium fluoroaluminate. Moreover, the present invention provides a method for preparing sealing ring, which includes the following steps: Step A: melting the aluminum in a medium-frequency induction furnace, adding the potassium fluoroaluminate to the medium-frequency induction furnace after melting the aluminum, melting and stirring the mixture evenly; Step B: adding titanium scrap or sponge titanium, and scrap iron to the mixture successively, melting and mixing the mixture totally at 800° C. to 1200° C., standing the mixture after stirring evenly; Step C: removing scum on the surface; Step D: casting into a mould to obtain a final sealing ring.

Abstract: Continuous casting machine for forming a lead alloy strip of large thickness; which comprises a cooled rotating drum (4) having an annular seat (8) formed on the periphery thereof and a vat (10) for containing a molten lead bath, which is sealingly engaged on the peripheral surface (7) of the rotating drum (4). The machine (1) also comprises a fixed shoe (11) extending, from the vat (10), along an arc (25) around the rotating drum (4) and having an arc shape suitable for sealing engagement, in a sliding relationship, on the shoulders (90) of the annular seat (8). Heating means (26) are provided, these consisting of a plurality of torches acting on the shoe (11) along at least an initial section thereof (25) which extends from the vat (10), for heating to a temperature higher than the melting temperature of the lead alloy the free surface of the lead inside the annular seat (8).

Abstract: An austenitic stainless steel alloy consisting essentially of, in terms of weight percent ranges 0.15-0.5C; 8-37Ni; 10-25Cr; 2.5-5Al; greater than 0.6, up to 2.5 total of at least one element selected from the group consisting of Nb and Ta; up to 3Mo; up to 3Co; up to 1W; up to 3Cu; up to 15Mn; up to 2Si; up to 0.15B; up to 0.05P; up to 1 total of at least one element selected from the group consisting of Y, La, Ce, Hf, and Zr; <0.3Ti+V; <0.03N; and, balance Fe, where the weight percent Fe is greater than the weight percent Ni, and wherein the alloy forms an external continuous scale comprising alumina, and a stable essentially single phase FCC austenitic matrix microstructure, the austenitic matrix being essentially delta-ferrite free and essentially BCC-phase-free. A method of making austenitic stainless steel alloys is also disclosed.

Abstract: A mold and method for gravity casting may integrally cast a turbine housing having a twin scroll unit and a bypass unit and an exhaust manifold having a plurality of exhaust runner units. A turbine housing-side riser may be formed based on the end portion of the twin scroll unit within a first mold and a second mold in the state where the cavity of the turbine housing is formed so that the end portion of the twin scroll unit which is the outlet of the turbine housing is upward disposed.

Abstract: The invention relates to a method for making a spring for a timepiece that comprises at least one monobloc ribbon of metal glass including at least one curvature. The method is characterized in that said method comprises the step of shaping by means of plastic-deformation said monobloc ribbon in order to obtain at least a portion of said curvature.

Abstract: A casting method and a casting device for a cast-metal object which are inexpensive and have a high degree of freedom are provided to cast plural types of cast-metal objects simultaneously. A cast-metal object is cast by using a casting device (10) including a mold structure (5) for forming a casting space capable of filling molten metal; and a runner (1) provided separately from the mold structure (5) for supplying molten metal into the casting space in the mold structure (5) by connecting the runner to the mold structure (5), wherein the runner (1) has a dividable structure, and the mold structure (5) has an assembly structure of a plurality of members.

Abstract: A heat-resistant superalloy having chromium, aluminum, cobalt, titanium, and ruthenium added thereto as main components, and having a subcomponent(s) optionally added thereto, the remainder, excluding the main components and the subcomponent(s), comprising nickel and an impurity inevitably contained, wherein the amount of the chromium added is 2 to 25% by mass, the amount of the aluminum added is 0.2 to 7% by mass, the amount of the cobalt added is 19.5 to 55% by mass, the amount of the titanium added is [0.17×(% by mass for cobalt?23)+3] to [0.17×(% by mass for cobalt?20)+7] % by mass (with the proviso that the amount of the titanium added is 5.1% by mass or more), and the amount of the ruthenium added is 0.1 to 10% by mass.

Abstract: Aluminum alloys are provided that have improved fluidity and elongation, as well as freedom of die soldering. The aluminum alloys are particularly suitable for die-casting of structural components. The aluminum alloy includes silicon at from about 8 weight % to about 11 weight %, manganese at from about 0.8 weight % to about 1.9 weight %, iron at from about 0.1 weight % to about 0.5 weight %, magnesium at from about 0.2 weight % to about 0.7 weight %, boron at from about 0.002 weight % to about 0.15 weight %, strontium at from about 0.006 weight % to about 0.017 weight %, less than about 0.25 weight % copper, less than about 0.35 weight % zinc, less than about 0.25 weight % titanium, and a balance of aluminum. Methods related to the aluminum alloys are also provided.

Abstract: The present invention provides a novel indium target and manufacturing method thereof, where an abnormal electrical discharge at sputtering and a generation of particles in a produced film can be inhibited excellently. The indium target contains not more than 1500 number/gram of inclusions having a particle size of 0.5 ?m to 20 ?m.

Abstract: A casting mold for a metal melt is provided. By coating a core of a casting mold, the core may be mechanically stabilized and an inner coating of the component to be cast may be obtained, wherein the coating preferably serves as an anti-corrosion layer. A method for producing a cast part using the casting mold is also provided.