Abstract: A solder paste includes a flux and powder mixed with the flux, where the powder includes first powder and second powder mixed with each other. The first powder may be a tin (Sn) and at least one metal dissolved in the tin (Sn), and the second powder may be a copper (Cu) powder, the surface of which is coated with silver (Ag).

Abstract: The aluminum alloy forged material for an automobile according to the present invention is composed of an aluminum alloy including Si: 0.7-1.5 mass %, Fe: 0.5 mass % or less, Cu: 0.1-0.6 mass %, Mg: 0.6-1.2 mass %, Ti: 0.01-0.1 mass % and Mn: 0.25-1.0 mass %, further including at least one element selected from Cr: 0.1-0.4 mass % and Zr: 0.01-0.2 mass %, restricting Zn: 0.05 mass % or less, and a hydrogen amount: 0.25 ml/100 g-Al or less, with the remainder being Al and inevitable impurities, wherein the aluminum alloy forged material has an area ratio the <111> texture of 60% or more in a cross section parallel to the extrusion direction.

Abstract: The present invention pertains to a method for producing a black-plated steel sheet capable of being blackened in a short amount of time, and exhibiting an excellent ability to maintain a black appearance after processing. As an original sheet, the sheet used is a Zn-plating steel sheet which contains molten Al and Mg and has a Zn-plating layer containing molten Al and Mg, containing Al in the amount of 1.0-22.0 mass %, inclusive, and containing Mg in the amount of 1.5-10.0 mass %, inclusive. The plating layer is blackened by causing the molten-plating steel sheet to contact water vapor inside a tightly sealed container. When doing so, the concentration of oxygen inside the tightly sealed container is 13% or less.

Abstract: The present invention pertains to a method for producing a black-plated steel sheet capable of being blackened in a short amount of time, and exhibiting an excellent ability to maintain a black appearance after processing. As an original sheet, the sheet used is a Zn-plating steel sheet which contains molten Al and Mg and has a Zn-plating layer containing molten Al and Mg, containing Al in the amount of 0.1-22.0 mass %, inclusive, and containing Mg in the amount of 0.1-1.5 mass %, inclusive. The plating layer is blackened by causing the molten-plating steel sheet to contact water vapor inside a tightly sealed container. When doing so, the concentration of oxygen inside the tightly sealed container is 13% or less.

Abstract: A stent is formed of at least a cobalt-based alloy. The cobalt-based alloy may include 10-35 weight % metal member selected from the group consisting of platinum (Pt), gold (Au), iridium (Ir), osmium (Os), rhenium (Re), tungsten (W), palladium (Pd), tantalum (Ta), and combinations thereof; 16-21 weight % chromium (Cr); 9-12 weight % molybdenum (Mo); 0-25 weight % nickel (Ni); and balance cobalt (Co). The cobalt-based alloy may be a thin outer shell of a hollow stent. The cobalt-based alloy may be used to form at least one of an inner core and an outer shell of a core-shell structure of a stent. The cobalt-based alloy may be used to form an end of a wire for forming a stent.

Abstract: A method for producing a workpiece having properties which are adjustable across a wall thickness or strip thickness of the workpiece, includes the steps of subjecting the workpiece to a decarburizing annealing treatment under an oxidizing atmosphere and to an accelerated cooling and/or a cold forming for generating a property gradient of the workpiece, wherein the workpiece is made of an austenitic lightweight steel which has an alloy composition which includes by weight percent 0.2% to 1% carbon, 0.05% to<15% aluminum, 0.05% to 6.0% silicon, 9% to<30% manganese, and at least one element selected from the group consisting of chromium, copper, boron, titanium, zirconium, vanadium and niobium, wherein chromium=4.0%; titanium+zirconium=0.7%; niobium+vanadium=0.5%, boron=1%, the remainder iron including common steel companion elements.

Abstract: A ferritic stainless steel excellent in corrosion resistance and conductivity and a method for manufacturing the same, the stainless steel having a chemical composition containing, by mass %, C: 0.001% or more and 0.05% or less, Si: 0.001% or more and 0.5% or less, Mn: 0.001% or more and 1.0% or less, Al: 0.001% or more and 0.5% or less, N: 0.001% or more and 0.05% or less, Cr; 17% or more and 23% or less, Mo: 0.1% or less and the balance being Fe and inevitable impurities and a passivation film on the surface of the stainless steel which is obtained by immersing the stainless steel in a solution for an immersion treatment, said solution mainly contains hydrofluoric acid or a liquid mixture of hydrofluoric acid and nitric acid.

Abstract: A chemical conversion coating is provided. The chemical conversion coating is disposed on a surface of a magnesium alloy substrate. The chemical conversion coating includes a first protecting layer. The first protecting layer contains manganese, magnesium and oxygen, and a manganese content of the first protecting layer is between 10 at. % to 20 at. %.

Abstract: A method of reducing the formation of electrically resistive scale on a an article comprising a silicon-containing ferritic stainless subjected to oxidizing conditions in service includes, prior to placing the article in service, subjecting the article to conditions under which silica, which includes silicon derived from the steel, forms on a surface of the steel. Optionally, at least a portion of the silica is removed from the surface to placing the article in service. A ferritic stainless steel alloy having a reduced tendency to form silica on at least a surface thereof also is provided. The steel includes a near-surface region that has been depleted of silicon relative to a remainder of the steel.

Abstract: An aluminum alloy wire, having an alloy composition which contains: 0.01 to 1.2 mass % of Fe, 0.1 to 1.0 mass % of Mg, and 0.1 to 1.0 mass % of Si, with the balance being Al and inevitable impurities, in which a grain size is 1 to 30 ?m, and in which a dispersion density of Mg2Si needle precipitate in the aluminum alloy is 10 to 200/?m2; and a method of producing the same.

Abstract: A metallurgical ladle, and more particularly the bottom of the ladle or a ladle block in the bottom of the ladle, have an outlet through which the molten metal can drain. The ladle bottom contains an open-end channel bounded by at least one wall with a major dimension perpendicular to a line joining the center of the outlet entrance to the center of the wall. In selected configurations, opposing faces of the walls bounding the open-end channel are convex in the horizontal plane and concave in the horizontal plane, respectively.

Abstract: Chemical conversion treatment agents for surface treating a metal substrate and a method for surface treating a metal substrate using the same are described in this disclosure. The chemical conversion agent includes at least one metal element, a fluorine element, and a co-condensate of a first silane coupling agent (A) and a second silane coupling agent (B).

Abstract: Disclosed herein is an aluminum oxide film remover for removing an oxide film on the surface of aluminum or aluminum alloy, which comprises silver ions and/or copper ions, a solubilizing agent for silver ions and/or copper ions, and a quaternary ammonium hydroxide compound, and has a pH value of 10 to 13.5. A method for surface treatment of aluminum or aluminum alloy is also disclosed, which comprises immersing a workpiece having aluminum or aluminum alloy at least on the surface thereof in the aluminum oxide film remover, and depositing the silver and/or copper contained in the remover on the surface of aluminum or aluminum alloy while removing the aluminum oxide film.

Abstract: The apparatus for cooling a hot-rolled steel sheet of the invention includes a thermometer that measures the temperature of the hot-rolled steel sheet; a shape meter that measures a shape of the hot-rolled steel sheet; a top side cooling device that cools a top surface of the hot-rolled steel sheet in a cooling section; a bottom side cooling device that cools a bottom surface of the hot-rolled steel sheet in the cooling section; and a control device that controls at least one of an amount of heat dissipated from the top surface by cooling and an amount of heat dissipated from the bottom surface by cooling of the hot-rolled steel sheet in the cooling section by controlling the top side cooling device and the bottom side cooling device based on temperature measurement results and shape measurement results.

Abstract: A ramming mass for the block lining of at least some of the refractory elements of a refractory lining of a metallurgical vessel such as a blast furnace, said ramming mass being composed of a mixture of a granular phase and a binder phase, wherein the granular phase and/or binder comprises at least one component having a microporous structure or capable of forming a microporous structure by firing during the blast furnace campaign. The ramming mass is in particular intended for forming the joint between two concentric annular assemblies forming a side wall of the vessel or between a lower part of an inner annular assembly and the periphery of one or more refractory layers forming the floor of the vessel.

Abstract: A tilting converter comprising a container (2), defining a first longitudinal axis X, having a bottom (2?); a support ring (3), coaxial to the container (2) and distanced from said container, provided with two diametrically opposite supporting pins (6), defining a second axis Y orthogonal to the first axis X, adapted to allow a rotation of the converter about said second axis Y; a suspension system, connecting said container (2) to said support ring (3), comprising groups (12) of first suspension devices (7), said groups (12) being arranged substantially equidistant to each other along a cylindrical side surface coaxial to the first axis X, in a position between the support ring (3) and the bottom (2?); each of said first suspension devices (7) being provided with a plurality of longitudinal elastic elements, each longitudinal elastic element being arranged alongside the next so as to define a laying plane, and a gap (15, 15?) is provided between one longitudinal elastic element and the next.

Abstract: Embodiments include methods and systems for oxidizing an interconnect for a fuel cell stack that include generating atomic oxygen, and forming an oxide layer on exposed surfaces of at least one interconnect using the atomic oxygen. In various embodiments, the atomic oxygen may be generated by thermally decomposing nitrous oxide gas into molecular nitrogen and atomic oxygen. In further embodiments, the atomic oxygen may be generated by catalytically decomposing nitrous oxide gas into molecular nitrogen and atomic oxygen. In further embodiments, the atomic oxygen may be generated using microwave discharge. In the various embodiments, the oxidation of the interconnect may be a controlled oxidation that is performed prior to incorporating the interconnect into a fuel cell stack.

Abstract: An article of manufacture and method of forming a borided material. An electrochemical cell is used to process a substrate to deposit a plurality of borided layers on the substrate. The plurality of layers are co-deposited such that a refractory metal boride layer is disposed on a substrate and a rare earth metal boride conforming layer is disposed on the refractory metal boride layer.

Abstract: In one embodiment, a case transfer apparatus includes a base, a feeding device having a first end tapering to a second end that is coupled to the base, a motor disposed on the base, a rotatable feed wheel assembly disposed on the base and coupled to the motor, the rotatable feed wheel assembly adapted to receive at least one case via gravitational force from a feeding device, and a roller plate coupled to the motor and disposed adjacent the rotatable feed wheel assembly within a case receiving region where the at least one case is rotated and heated.

Abstract: An object of the present invention is to provide a method for producing a surface-modified rare earth metal-based sintered magnet having extremely excellent corrosion resistance even in an environment with fluctuating temperature and humidity and also having excellent magnetic characteristics. The method for producing a surface-modified rare earth metal-based sintered magnet of the present invention as a means for achieving the object is characterized by comprising a step of subjecting a rare earth metal-based sintered magnet to a heat treatment at 200° C. to 600° C. in an atmosphere having an oxygen partial pressure of 1×103 Pa to 1×105 Pa and a water vapor partial pressure of 45 Pa or less with the ratio between the oxygen partial pressure and the water vapor partial pressure (oxygen partial pressure/water vapor partial pressure) being 450 to 20000.