Abstract: In the present invention, there is provided a coating liquid for forming an insulation coating for a grain-oriented electrical steel sheet, including: a solvent; and one or two more layered clay mineral powders having a specific surface area of 20 m2/g or more. In addition, in the present invention, there is provided a grain-oriented electrical steel sheet including: a base metal; and an insulation coating provided on a surface of the base metal, in which the insulation coating contains SiO2, and one or two of Al2O3 and MgO, and has a porosity of 10% or less.

Abstract: A cobalt based superalloy and a method of producing the same. The superalloy includes a nominal composition comprising at least cobalt, aluminum, Z and vanadium, Z being at least one of tantalum and niobium, processed such that the superalloy comprises gamma and gamma-prime phases with stable gamma+gamma-prime microstructures.

Abstract: When a steel material is processed to produce a grain-oriented electrical steel sheet, conditions of a decarburization annealing process and conditions of a process before the decarburization annealing are adjusted so that a difference in concentration of O, Si, Al, Mn and P between the front and back surfaces of the steel sheet after the decarburization annealing is within a given range with respect to an average concentration between the front and back surfaces, and hence the difference in concentration of each of O, Si and Mg between the front and back surfaces of the product sheet is within ±5%, the difference in concentration of one or more of Al, Mn and P between the front and back surfaces is within ±15% and the difference in the concentration of one or more of Ca and Ti between the front and back surfaces is within ±20%.

Abstract: A method for producing ultra-thin hot-rolled strip steel, the method comprising the following process steps: A. a smelting process: feeding scrap steel into an induction electric furnace (1) for smelting so that the scrap steel melts into molten steel; B. a refining process: using a ladle refining furnace (2) and a ladle vacuum degassing furnace (3) to refine the molten steel; C. a continuous casting process: casting the refined molten steel into a cast strip blank that has a thickness of 1.6-2.5 mm by means of a dual-roller thin strip continuous casting system (4); D. a hot rolling process: directly feeding the cast strip blank that was cast in the continuous casting process to a single-stand hot rolling mill (9) for rolling to produce hot-rolled strip steel, the thickness of the hot-rolled strip steel being 0.8-1.5 mm; E. a cooling coiling process: performing atomizing cooling on the hot-rolled strip steel, and coiling after the strip steel temperature is controlled to be 400-750° C.

Abstract: A non-oriented electrical steel sheet according to an embodiment of the present invention includes: in wt %, C at 0.004 wt % or less (excluding 0 wt %), Si at 2.5 to 4.0 wt %, P at 0.1 wt % or less (excluding 0 wt %), Al at 0.3 to 2.0 wt %, N at 0.003 wt % or less (excluding 0 wt %), S at 0.003 wt % or less (excluding 0 wt %), Mn at 0.15 to 2.5 wt %, Cr at 0.5 wt % (excluding 0 wt %), and the balance including Fe and other impurities unavoidably added thereto; satisfies the following Equation 1; and has an average grain size of 20 ?m or less. [Mn]?1450×[S]?0.8??[Equation 1] (In Equation 1, [Mn] and [S] represent a content (wt %) of Mn and S, respectively.).

Abstract: A method for binder jetting a three-dimensional (3D) object includes receiving a geometry of the object to be printed and generating instructions for printing the object. Generating the instructions includes slicing the geometry of the object into a series of cross-sectional shapes corresponding to where a binder fluid will be deposited onto a powder bed to form the object, and including a plurality of negatively printed features within at least some of the series of cross-sectional shapes, wherein an amount of binder fluid to be deposited in the negatively printed features is less than an amount of binder fluid to be deposited in a remainder of the cross-sectional shape. The amount of binder fluid to be deposited in the negatively printed features and a size of the negatively printed features is configured to allow gas to escape from the powder bed.

Abstract: A method for preparing an aqueous mineral suspension from an aqueous metal ore residue may include introducing into the aqueous metal ore residue a polymer (P) having a molecular mass Mw measured by GPC ranging from 2,000 to 20,000 g/mol. The polymer (P) may be prepared by radical polymerization of at least one anionic monomer (M). The suspension produced by such a method may have a Brookfield viscosity of which is lower than 1,800 mPa·s or a yield point of lower than 80 Pa.

Abstract: A grain-orientation electrical steel sheet according to an exemplary embodiment of the present invention includes a linear groove formed in a direction intersecting with the rolling direction, the groove includes the gradient section and the uniform section on a cross section including the transverse direction of the groove and the rolling surface normal direction of the steel sheet, and a length of the gradient section (GS) and the length of the uniform section (US) satisfy Equation 1 below. 0.1?[GSL]/[USL]?0.5??[Equation 1] In Equation 1, [GSL] represents the length (mm) of the gradient section and [USL] represents the length (mm) of the uniform section.

Abstract: A flow device serves for a 3D printer. The device includes a gas conveying device for generating a gas stream and a process chamber with a build area for building the object. The process chamber includes a first gas inlet for introducing a gas stream into the process chamber, and a first gas outlet and a second gas outlet for discharging the gas stream. The first gas outlet is arranged closer to the build area than the second gas outlet in a direction perpendicular to the build area, and the first gas outlet is provided substantially within a lower third of a distance of the build area from a process chamber ceiling a first height range of the process chamber with respect to its extension in a direction perpendicular to the build area and the second gas outlet is provided substantially within the upper four fifths of the distance of the build area from the process chamber ceiling.

Abstract: This application relates to a method of manufacturing a cooling pipe for a powertrain of an electric vehicle. The method may include preparing a powdered composite material by ball-milling aluminum alloy particles and carbon nanotube particles. The method may also include preparing a multilayer billet containing the powdered composite material and comprising a core layer and two or more shell layers surrounding the core layer. The method may further include extruding the multilayer billet to produce a pipe-shaped extrusion. The core layer is made of the powdered composite material or an aluminum alloy, the outermost shell layer of the two or more shell layers is made of an aluminum alloy, and the remaining shell layers are made of an aluminum alloy. This application also relates to a cooling pipe manufactured by the method, an electric vehicle motor and an electric vehicle battery pack casing including the cooling pipe.

Abstract: Part comprising a steel material whose constituent grains comprise a matrix in which precipitates are incorporated, the precipitates comprising at least one metallic element selected from a metallic element M, a metallic element M?, a metallic element M? or mixtures thereof; the microstructure of the steel being such that the grains are equiaxed and the average grain size being such that the average of their largest dimension “D max” and/or the average of their smallest dimension “D min” is comprised between 10 ?m and 50 ?m. The steel material has optimised, stable and isotropic mechanical properties, in particular so that the steel material can best withstand mechanical and/or thermal stresses.

Abstract: Methods for large-scale additive manufacturing of high-strength boron nitride nanotubes (BNNT)/aluminum (Al) (e.g., reinforced Al alloy) metal matrix composites (MMCs) (BNNT/Al MMCs), as well as the BNNT/Al MMCs produced by the large-scale additive manufacturing methods, are provided. A combination of ultrasonication and spray drying techniques can produce good BNNT/Al alloy feedstock powders, which can be used in a cold spraying process.

Abstract: A method is used to fabricate a hot-rolled steel having a yield strength greater than 550 MPa and an impact toughness of at least 27 J at a temperature of ?40° F. In one embodiment, the yield strength is greater than 690 MPa. The method includes melting steel to create melted steel. The melted steel is poured into a mold. The metal steel is continuously cast into a steel slab. The steel slab is heated to maintain a predetermined temperature. The steel slab is rolled to reduce the thickness to a predetermined thickness to create a hot-rolled steel sheet.

Abstract: This invention is based upon the discovery that prototype parts having physical characteristics that mimic those of powder metal parts can be made by laser powder bed fusion techniques in cases where water or gas atomized powder metals are employed in the laser fusion procedure. More specifically, parts made utilizing water or gas atomized powder metals in such additive procedures, using unique printing parameters to create desired porosity levels within the component, have densities and microstructures that approximate those made using conventional powder metal manufacturing techniques. For instance, such parts can be made so as to have a density which is within the range of about 6.0 g/cc to 7.8 g/cc and which have physical properties that are equivalent to those of powder metal parts of comparable densities.

Abstract: A non-contact respiratory monitoring system comprises a magnetic microwire sensor coil that detects magnetic field changes due to motion of a magnet attached to a patient's chest. Field lines emanating from the magnet are parallel to a circumferential loop area of the coil and the coil is positioned at a distance to magnetically couple to the magnet. Impedance in the coil changes when the distance of the magnet to the coil changes due to the patient's breathing. An alternating voltage across coil is modified by the change in impedance. An impedance analyzer coupled to the coil applies the alternating voltage and measures the impedance changes. A computer system controls operation of impedance analyzer, receives respiratory monitoring information based on the coil's impedance changes from the impedance analyzer, and generates a graphical display of the respiratory monitoring information.

Abstract: Each type of metal component part for two or more watch designs can be derived from instances of that corresponding type of MIM blank for that component part, which is formed from a same injection molding tool (respectively for each type of component part). An example instance of the MIM blank formed for a type of component part then has at least a portion of the instance of the MIM blank subtracted through a CNC milling process to form an interim shape and geometry of an instance of the type of component part for a given watch design. The CNC milling process can be applied to the MIM blank for that component part when the MIM blank is in its interim shape and geometry and has not yet been hardened to a finished shape and geometry of an instance of that type of component part for the watch design.

Abstract: The three-dimensional printer head for printing metal articles, the printer comprises a nozzle that is cylindrical and manufactured from a heat-resistant material with low electric conductivity, an embedded channel within the nozzle and running along a longitudinal length of the nozzle; a receiving space at a first end of the embedded channel in which a solid metal material is received; an extrusion space at a second end of the embedded channel from which a continuous bead of liquid or semisolid metal material is extruded, a feeder mechanism that continuously drives the solid metal material into the embedded channel through the receiving space, an induction coil surrounding an outer surface of the nozzle and extending over a substantial portion of the longitudinal length of the nozzle.

Abstract: A method for making a component comprising a high entropy alloy (HEA) includes combining a reaction component with a powdered HEA precursor, igniting the combination of the reaction component and the powdered HEA precursor to induce a self-propagating high-temperature synthesis (SHS) reaction and to form a solid HEA feedstock, converting the solid HEA feedstock into a powder HEA feedstock, and additively manufacturing at least a portion of the powder feedstock into a HEA component or HEA preformed shape approximating a desired shape of the component.

Abstract: This invention provides an alloy with an interference thin film and the method for making the same. In one embodiment, said alloy consists essentially of 55.0-78.0 wt % Au, 8.0-24.0 wt % Ag, 8.0-24.0 wt % Cu and 0.0-3.0 wt % deoxidizer, and said interference thin film is grown on a surface of said alloy and has a thickness of less than 200 nm; wherein said interference thin film exhibits a patination color.

Abstract: A method for producing steel includes: (a) a step of adding the first group of alloys to molten steel having an amount of dissolved oxygen of 0.0050 mass % or more; (b) a step of, after the step of (a), adding deoxidizer to the molten steel for deoxidation; (c) a step of, after the step of (b), adding the second group of alloys to the deoxidized molten steel; and (d) a step of, after the step of (c), adding REM to the molten steel, wherein amounts of oxygen Ob introduced from the first group of alloys (mass %) and amounts of oxygen Oa introduced from the second group of alloys (mass %) satisfy [Oa?0.00100], [Ob+Oa?0.00150], and [Ob/Oa?2.0], and satisfy a formula [0.05?REM/T.O?0.5] after the step of (d).