Abstract: A method for manufacturing a sintered mesh includes a step of preparing a mesh made of austenite stainless steel and including a plurality of wires extending respectively in intersecting directions, and a step of heat treatment for controlling an ambient temperature of the mesh. The step of heat treatment includes a temperature rising process for raising the ambient temperature to a treatment temperature, a holding process for holding the ambient temperature at the treatment temperature, and a temperature lowing process for lowing the ambient temperature. The treatment temperature is more than an austenitic temperature. The temperature lowering step includes an quenching process, where the ambient temperature is lowered under an argon gas ambient at a temperature lowering speed more than 3° C./min.

Abstract: The present application relates to a production process for easily injection-molded neodymium iron boron magnets. The production process includes the following steps: powder preparation: mixing neodymium, iron, and boron uniformly to obtain a mixture, smelting and pulverizing the mixture to obtain a neodymium iron boron alloy powder; mixing: mixing the neodymium iron boron alloy powder and a wax-powder adhesive solution uniformly to obtain a rheological mixture; injection molding: subjecting the rheological mixture to injection molding to form a green blank; stabilization: subjecting the green blank to a stabilization treatment to remove the wax-powder adhesive solution from the green blank to obtain a magnet blank; and sintering: sintering the magnet blank to obtain the neodymium iron boron magnet. In the present application, the wax-powder adhesive solution and the neodymium iron boron alloy powder are mixed, making the rheological mixture easy to be injected and demolded, and improving the product quality.

Abstract: A steel sheet has a composition including 0.060%?C?0.085%, 1.8%?Mn?2.0%, 0.4%?Cr?0.6%, 0.1%?Si?0.5%, 0.010%?Nb?0.025%, 3.42N?Ti?0.035%, 0?Mo?0.030%, 0.020%?Al?0.060%, 0.0012%?B?0.0030%, S?0.005%, P?0.050%, 0.002%?N?0.007% and optionally 0.0005%?Ca?0.005%, the remainder of the composition being iron and unavoidable impurities. The microstructure includes 34% to 80% bainite, 10% to 16% martensite, and 10% to 50% ferrite. The surface fraction of unrecrystallized ferrite, with respect to the whole structure, is less than 30%. The martensite includes self-tempered martensite and fresh martensite, the surface fraction of self-tempered martensite being between 4% and 10%.

Abstract: A carbothermic process of magnesium production and co-production of calcium carbide is provided. A mixed powder containing magnesium oxide, calcium oxide and a carbon reducing agent is prepared. The mixed powder is processed into a pelletized furnace feed material, which is placed into a reactor equipped with a heat source. With an absolute pressure P in the reactor being set within the range of 1000 Pa?P?atmospheric pressure or to a slightly positive pressure and a reaction temperature T within the range of 11lg2P+71lgP+1210° C.<T<98lg2P?129lgP+1300° C., a smelting reaction is run. Liquid magnesium is obtained through condensation by a condenser connected to the reactor, and after the smelting reaction has finished, calcium carbide is obtained within the reactor.

Abstract: The present application provides a method for manufacturing a metal foam. The present application can provide a method for manufacturing a metal foam, which is capable of forming a metal foam including uniformly formed pores and having excellent mechanical properties as well as the desired porosity, and a metal foam having the above characteristics. In addition, the present application can provide a method capable of forming a metal foam in which the above-mentioned physical properties are ensured, while being in the form of a thin film or sheet, within a fast process time, and such a metal foam.

Abstract: A carbon steel sheet coated with a barrier pre-coating containing nickel and chromium in a weight ratio between 1.5 and 9, and a press hardening method for providing the carbon steel sheet coated with a barrier pre-coating comprising nickel and chromium are described.

Abstract: A plasma atomization metal powder manufacturing process includes providing a heated metal source and contacting the heated metal source with the plasma of at least one plasma source under conditions effective for causing atomization of the heated metal source. The atomization may be carried out using a gas to metal ratio of less than about 20, thereby obtaining a raw metal powder having a 0-106 ?m particle size distribution yield of at least 80%. The process may further include aligning the heated metal source with the plasma of at least one plasma source. An atomizing system may include an alignment system positioned upstream of the plasma source and adapted to adjust an orientation of the metal source relative to the at least one plasma source.

Abstract: A hot-rolled steel sheet for non-oriented electrical steel sheets includes, by mass %: C: 0.0010% to 0.0050%; Si: 1.90% to 3.50%; Al: 0.10% to 3.00%; Mn: 0.05% to 2.00%; P: 0.100% or less; S: 0.005% or less; N: 0.0040% or less; B: 0.0060% or less; Sn: 0% to 0.50%; Sb: 0% to 0.50%; Cu: 0% to 0.50%; REM: 0% to 0.0400%; Ca: 0% to 0.0400%; Mg: 0% to 0.0400%; and a remainder including Fe and impurities, in which a hardness HD of a deformed structure of a thickness middle portion (½t position) in a sheet width direction end portion of the hot-rolled steel sheet for non-oriented electrical steel sheets is Hv 220 or less.

Abstract: The present application provides a method for producing a film. In the present application, for example, a method for producing a film which can be applied to production of a heat-dissipating material such as a heat pipe can be provided.

Abstract: Provided is a NbC based cemented carbide and method of manufacture the same. The NbC based cemented carbide may be devoid of WC. The NbC based cemented carbide may be devoid of Co in the binder phase. The NbC based cemented carbide exhibits enhanced strength and thermal conductivity while maintaining desired toughness and hardness.

Abstract: The present disclosure is directed to methods of preparing substantially spherical metallic alloyed particles, having micron and sub-micron (i.e., nanometer)-scaled dimensions, and the powders so prepared, as well as articles derived from these powders. In particular embodiments, these metallic alloyed particles, comprising rare earth metals, can be prepared in sizes as small 80 nm in diameter with size variances as low as 2-5%.

Abstract: A method of manufacturing an Sm—Fe—N magnet includes filling a metal sheath with a magnet powder including an Sm—Fe—N compound as a main component and sealing the metal sheath, applying a magnetic field to the magnet powder sealed in the metal sheath, and magnetizing the magnet powder by magnetically orienting the magnet powder and aligning a direction of magnetic orientation in one direction, preliminarily rolling the magnetically oriented magnet powder sealed in the metal sheath to make the magnetically oriented magnet powder into a green compact, and pressurizing the green compact sealed in the metal sheath and densifying the green compact to form a magnet body, wherein the preliminary rolling is performed by lightly rolling the magnetically oriented magnet powder sealed in the metal sheath with a pressure smaller than a pressure for pressurizing the green compact.

Abstract: A grain boundary diffusion method for a bulk rare earth permanent magnetic material includes the following steps: (1) fabricating an initial magnet by a sintering, hot pressing, or hot deformation process; (2) loading a grain boundary diffusion alloy source on a surface of the magnet through electrodeposition, chemical vapor deposition (CVD), physical vapor deposition (PVD), direct physical contact, or adhesive bonding; and (3) placing the initial magnet loaded with the grain boundary diffusion alloy source in a SPS device, and heating to obtain a final magnet. The current, plasma, and pressure in an SPS process can be controlled to significantly improve elemental diffusion coefficient and enhance the diffusion depth. The bulk rare earth permanent magnetic material undergoing grain boundary diffusion fabricated in the present disclosure has a significant increase in magnetic properties that catering to commercial demands for industrial production.

Abstract: Disclosed is a ferritic stainless steel having improved magnetization including, in percent by weight (wt %), 0.01% or less (excluding 0) of C, 0.003% or less (excluding 0) of N, 15 to 18% of Cr, 0.3 to 1.0% of Mn, 0.2 to 0.3% of Si, 0.005% or less (excluding 0) of Al, 0.005% or less (excluding 0) of Ti, and the balance of Fe and inevitable impurities, and satisfying the following equation, (Ti+Al+8*(C+N)/Mn)?0.3??Equation (1): (wherein Ti, Al, C, N, and Mn denote amounts (wt %) of the respective elements).

Abstract: A metal plate used for manufacturing a deposition mask has a thickness of equal to or less than 30 ?m. An average cross-sectional area of the crystals grains on a cross section of the metal plate is from 0.5 ?m2 to 50 ?m2. The average cross-sectional area of crystal grains is calculated by analyzing measurement results obtained by an EBSD method, the measuring results being analyzed by an area method under conditions where a portion with a difference in crystal orientation of 5 degrees or more is recognized as a crystal grain boundary.

Abstract: A process for manufacturing an additively-manufactured part from a metal powder having a composition having the following elements, expressed in content by weight: 6%?Ni?14%, 5%?Cr?10%, 0.5%?Si?2.5%, 0.5%?Ti?2%, C?0.04% and optionally containing 0.5%?Cu?2%, the balance being Fe and unavoidable impurities resulting from the elaboration, the metal powder having a microstructure including in area fraction more than 98% of a body-centered cubic crystalline phase, the process having a step during which at least a part of the metal powder is melted in an atmosphere substantially composed of an inert gas other than Argon or of a combination of inert gases other than Argon.

Abstract: Methods for die attachment of multichip and single components may involve printing a sintering paste on a substrate or on the back side of a die. Printing may involve stencil printing, screen printing, or a dispensing process. Paste may be printed on the back side of an entire wafer prior to dicing, or on the back side of an individual die. Sintering films may also be fabricated and transferred to a wafer, die or substrate. A post-sintering step may increase throughput.

Abstract: A method for the powder metallurgical production of a component may include providing a mould, filling a first metallurgical powder into the mould such that an outer contact surface of the first metallurgical powder in the mould forms an angle of 55° to 65° with an axis of a future green product, and filling a second metallurgical powder that is distinct from the first metallurgical powder into the mould such that the second metallurgical powder adjoins the outer contact surface of the first metallurgical powder. The method may also include producing the green product out of the first metallurgical powder and the second metallurgical powder, and sintering the green product to produce the component.

Abstract: A metallic part is disclosed. The part may comprise a functionally graded monolithic structure characterized by a variation between a first material composition of a tubular preform and a second material composition of at least one of a secondary structural element wherein each of the first material composition and the second material composition comprises at least one of a titanium metal or an alloy of titanium. The first material composition may comprise an alpha-beta titanium alloy. The second material composition may comprise a beta titanium alloy.

Abstract: Method for manufacturing an aluminium alloy part by additive manufacturing that includes a step in which a layer of a mixture of powders is locally melted then solidified, wherein the mixture of powders includes: first particles that include at least 80 wt. % aluminium and up to 20 wt. % one or more additional elements, and second particles of ZrSi2, the mixture of powders including 1.8 wt. % to 4 wt. % second particles.