Abstract: A torch guide device for cutting target material is presented, the torch guide device including a torch cradle assembly coupled to a rail assembly. The torch cradle assembly is configured for holding a torch to align a torch tip of the torch to the target material. The torch cradle assembly is movable along the rail assembly for cutting the target material along a cutting path. The connector member couples the torch cradle assembly to the rail assembly. The connector member comprises a pivot for pivoting the torch cradle assembly relative to the rail assembly. The torch cradle assembly, in a first position, pivots about the pivot to engage at least a portion of the rail assembly to establish an orientation of the torch tip relative to the target material.

Abstract: A vacuum chamber assembly includes a vacuum chamber containing a reactive material, an inlet fill tube fixedly attached to the vacuum chamber, and an outlet fill tube fixedly attached to the vacuum chamber. The inlet fill tube has a first vacuum tight seal and the outlet fill tube has a second vacuum tight seal.

Abstract: The invention provides a high-strength cold-rolled steel sheet which is improved in elongation and stretch-flangeability and exhibits more excellent formability. The high-strength cold-rolled steel sheet has a composition which contains by mass C: 0.03 to 0.30%, Si: 0.1 to 3.0%, Mn: 0.1 to 5.0%, P: 0.1% or below, S: 0.005% or below, N: 0.01% or below, and Al: 0.01 to 1.00% with the balance consisting of iron and unavoidable impurities. The high-strength cold-rolled steel sheet has a structure which comprises at least 40% (up to 100% inclusive) in terms of area fraction of tempered martensite having a hardness of 300 to 380 Hv and the balance ferrite. The cementite particles in the tempered martensite take such dispersion that 10 or more cementite particles having equivalent-circle diameters of 0.02 to less than 0.1 ?m are present per one ?m2 of the tempered martensite and three or fewer cementite particles having equivalent-circle diameters of 0.

Abstract: A method for producing an alumina template of nanorods, the alumina template, and the nanorods are provided for overcoming the problems of the conventional alumina template having anodic aluminum oxide that may be peeled off from a substrate or forming a non-conductive oxide easily, and the alumina template includes a conductive substrate composed of an active metal and an inert metal, so that the alumina template can be attached onto the active metal and inert metal at the same time, and the active metal can be used for securing the alumina template and supporting the alumina template on the inert metal, and the anodic aluminum oxide attached onto the inert metal can be used for providing a better conductivity, such that a stable and highly conductive alumina template can be produced.

Abstract: This method of manufacturing a grain-oriented electrical steel sheet includes, between a cold rolling process and a winding process, a groove formation process of irradiating the surface of a silicon steel sheet with a laser beam multiple times at predetermined intervals in a sheet passing direction, over an area from one end edge to the other end edge, in a sheet width direction of the silicon steel sheet, thereby forming a groove along a locus of the laser beam.

Abstract: A tundish assembly, including an element, for preventing or limiting steel reoxidization in the continuous casting of molten steel, is used in combination with a refractory nozzle. The element has an orifice engaging the outer surface of the nozzle, a main surface surrounding the main orifice and having a lowest level lower than the top outer edge of the nozzle inlet portion, and a periphery having an upper face surrounding the main surface of the element. The upper face of the periphery of the element is higher than the main surface of the element and is higher than the surface of the bottom well of the tundish. The main surface of the element is arranged so as to contact molten steel in a tundish.

Abstract: A method of welding a gas turbine engine substrate composed of a gamma prime precipitation strengthened nickel based superalloy, including the steps of: applying weld beads on the substrate to form a continuous layer the thickness of the weld beads; using a filler material made of a first material exhibiting comparable strength and ductility as the substrate, and a second material exhibiting greater ductility than the substrate; and creating crack propagation mitigating regions within the continuous layer by increasing the percentage of the second material in the crack propagation mitigating regions over the percentage of the second material in the remainder of the continuous layer.

Abstract: Exemplary embodiments of the present invention can provide a method for producing hot dip galvannealed steel sheet which exhibits high strength, high ductility, and a significant degree of alloying. Such exemplary method can be applied to, e.g., a pickled hot rolled steel sheet or an annealed and pickled cold rolled steel sheet containing between about 0.02% and about 0.2% C and between about 0.15% and about 2.5% Mn, and may include one or more procedures for rinsing the sheet, preplating the sheet with Ni, rapidly heating the sheet in a nonoxidizing atmosphere to a sheet temperature of about 430° C. to 500° C., then hot dip plating the sheet in a galvanizing bath containing between about 0.05% and about 0.2% Al, and then immediately heating the sheet rapidly for an alloying treatment. Such exemplary method can provide an improved alloying speed, improved plating appearance and better plating adhesion.

Abstract: This invention relates to a process for obtaining metal values, typically base metals, platinum or gold from a feed material. In a first step of the process of the invention, feed material containing metal values is ground to a particle size d90 of 100 microns or less to form an ultra fine pulp. In a second step of the process of the invention, the ultra fine ground pulp from the first step is oxygenated by pumping it in multiple passes through an in-line high shear static oxygenation device (30), while re-circulating it on a tank (28) or any other vessel. The process of the invention results in a significant reduction in the required leach time, improved recoveries, reduced cyanide consumptions, a steadier gold tail, as well as reduced capital and operational expenditure.

Abstract: A desulfurizer containing at least a composition of a highly concentrated amorphous iron oxide hydroxide as the active ingredient. A method for preparing a composition containing at least a highly concentrated amorphous iron oxide hydroxide. A method for regenerating the desulfurizer. The desulfurizer contains at least the composition of a highly concentrated amorphous iron oxide hydroxide as the active ingredient and a binder. The composition and the desulfurizer have a high sulfur capacity and can be regenerated. This saves resources and reduces environmental pollution. The method for regenerating the desulfurizer includes at least the following steps: a) mixing a solid soluble ferrous salt with a solid hydroxide, b) kneading the mixture and allowing it to react at temperatures not exceeding 90° C., c) drying in air, d) washing with water and filtering to yield a solid, and e) drying naturally or roasting the solid.

Abstract: A method for heat treating a serviced turbine part to improve a hold time fatigue cracking resistance of the serviced turbine part is provided. The method includes positioning the serviced turbine part in a vacuum furnace configured to limit surface oxidation. The serviced turbine part is controllably heated to prevent distortion. A surface damage layer is recrystallized into a fine grain structure to prevent fatigue crack initiation. The serviced turbine part is controllably cooled to prevent distortion.

Abstract: The invention provides a non-oriented electrical steel sheet excellent in yield strength for use as an iron core material for high rpm motors that does not sacrifice yield or productivity in motor core punching or steel sheet production, which non-oriented electrical steel sheet is given a chemical composition of, in mass %, C: 0.01 to 0.05%, Si: 2.0 to 4.0%, Mn: 0.05 to 0.5%, Al: 3.0% or less and Nb: 0.01 to 0.05%, and optionally Ni at a preferable content of more than 0.5% and less than 3.0%, the balance being Fe and unavoidable impurities, Mn and C contents expressed in mass % are made to satisfy Mn?0.6-10×C, recrystallized portion area fraction is made 50% or greater, yield strength in tensile testing is made 650 MPa or greater, and average-grain diameter viewed in steel sheet cross-section is made 40 ?m or less, and electrical steel sheet production is conducted using a hot-rolled sheet whose transition temperature in impact testing is 70° C. or less.

Abstract: A method for making armor plate that is resistant to armor piercing small arms ammunition is provided. The armor plate includes a steel plate having a nominal chemical composition in weight percent of 0.4C-1.8Ni-0.8Cr-0.25Mo. The steel plate is carburized on one side and produces a carburized side and a non-carburized side. The carburized side of the steel plate has a carbon concentration of at least 0.9% by weight and the non-carburized side has a carbon concentration of between 0.38 and 0.45% by weight. After the steel plate has been carburized, it is subsequently thermally processed such that the carburized side has a hardness of at least 58 Rockwell Hardness C (HRC), and the non-carburized side has a hardness of between >=50 and <=55 HRC.

Abstract: A process for manufacturing a component with a base of Co—Cr—Mo alloys having values of average ultimate elongation at 800° C. greater than 10% and of average yielding load at 800° C. greater than 400 MPa, comprising: obtaining a sintered component by additive sintering of powders of Co—Cr—Mo alloys containing carbides irregularly dispersed in the molten matrix; Conducting a first heat treatment on the sintered component for solubilization of the carbides at a temperature of between 1100° C. and 1300° C. for at least 2 hours to form a solubilization intermediate; and cooling the solubilization intermediate at a cooling rate at least equal to that of cooling in air to form a cooled intermediate; and conducting a second heat treatment on the cooled intermediate at a temperature of between 700° C. and 1000° C.

Abstract: A method for cooling a hot strip conveyed on a run-out table after finishing, including ejecting rod-like flows of cooling water from nozzles to the upper surface of the steel strip such that the flows are inclined toward a traveling direction of the steel strip, and draining the cooling water using draining means disposed downstream of the nozzles.

Abstract: A method for coating a hot-rolled or cold-rolled steel flat product, containing 6-30% wt. Mn, with a metallic protective layer by hot-clip coating in a melt bath. The coating, achieved with increased production reliability, is optimised by the steel flat product being subjected to a pickling treatment in which the manganese oxide adhering to the steel flat product is essentially fully removed in the pickling bath before the steel flat product enters the melt bath.

Abstract: A system and method of induction heat treating a gear includes a workstation. The workstation has a power source, an inductor coil, and a rotational mechanism. The gear is induction heat treated at a first portion of the gear and a second portion of the gear remains untreated by induction hardening. The gear has an inner surface. The inner surface includes the first portion and the second portion. The first portion has a first width. The second portion has a second width. The inductor coil includes at least one heating loop and at least one non-heating loop. The inductor coil is energized to a predetermined frequency to create an alternating magnetic field, where the alternating magnetic field developed in the heating loop induces an eddy current in the first portion of the gear.

Abstract: A vacuum carburization processing method includes a preparatory heating step of increasing the temperature of a workpiece in a heating chamber to a first temperature, a carburizing step of carburizing the workpiece by supplying carburizing gas into the heating chamber from a state where the pressure inside the heating chamber is reduced to an extremely low pressure, a diffusing step of terminating the supply of the carburizing gas and making carbon diffuse from a surface of the workpiece into its internal part, and a quenching step of abruptly cooling the temperature of the workpiece from a state where the temperature of the workpiece is at a second temperature; and also includes, between the diffusing step and the quenching step, a normalizing step of reducing the temperature of the workpiece so that the temperature history of the workpiece from the first temperature to a predetermined temperature satisfies predetermined conditions, a post-normalization maintaining step, performed after the normalizing step,

Abstract: A hot-strip cooling device for cooling a hot strip that has been subjected to finish rolling while being conveyed over a run-out table. The device includes a plurality of cooling nozzles that are disposed above a steel strip and eject rod-like flows of coolant at an ejection angle tilted toward the upstream side in a steel-strip traveling direction; and purging means that is disposed on the upstream side with respect to the cooling nozzles and purges the coolant that has been ejected from the cooling nozzles and resides on the steel strip.

Abstract: Provided is a method of manufacturing a high strength ferritic/martensitic steel. The method includes melting a ferritic/martensitic steel, hot-working the melted ferritic/martensitic steel, normalizing the hot-worked ferritic/martensitic steel at a temperature of about 1050° C. to about 1200° C., tempering the ferritic/martensitic steel at a temperature of about 600° C. or less, and leaving MX precipitates while preventing a M23C6 precipitate from being precipitated, and cold-working and thermal-treating the ferritic/martensitic steel in a multistage fashion, and precipitating M23C6 precipitates. Through the above described configuration, the high strength ferritic/martensitic steel that prevents a ductility from being deteriorated even in a high-temperature environment may be manufactured.