Abstract: New 2xxx aluminum alloys are disclosed. The new 2xxx aluminum alloys generally include from 0.08 to 0.20 wt. % Ti. The new 2xxx aluminum alloys may realize an improved combination of two or more of strength, fracture toughness, elongation, and corrosion resistance, for instance.

Abstract: The present invention relates to a copper powder for additive manufacturing, a method for producing the same, an additive manufactured product, a method for producing the same and the like, and an object of the present invention is to provide a copper powder for additive manufacturing that can sufficiently improve the mechanical strength and electrical conductivity of an additive manufactured product. The means for achieving the above-mentioned object of the present invention is, for example, a copper powder for additive manufacturing having a mean particle size of 1 ?m or more and 150 ?m or less, containing copper oxide in an amount of 0.10 g/m2 or more and 7.0 g/m2 or less per unit surface area and 0.5 mass % or more and 9.4 mass % or less per unit mass.

Abstract: A process for smelting steel for ultrafine carborundum sawing wires, comprising: 1) in a vacuum induction furnace, using pure iron and low-phosphorus pig iron as raw materials to be melted into molten steel under the protection of argon; vacuumizing, smelting, and degassing; using silicon iron as a deoxidizer to adjust components of the molten steel; and casting a circular ingot in vacuum; 2) cleaning the surface of the circular ingot to produce an electrode bar; 3) remelting and smelting the electrode bar to a cylindrical electroslag ingot in an electroslag furnace, wherein the electroslag ingot comprises: CaF2: 45-55%, Al2O3: 15-25%, SiO2: 20-25%, Na2O: 2-4%, and K2O: 1-2%; 4) forging the electroslag ingot to a square billet; and 5) rolling the forged billet to a steel wire rod which comprises [C]: 0.92-1.1%, [Si]: 0.3-0.4%, [Mn]: 0.5-0.8%, [Al]<0.0008%, [N]<0.005%, [S]<0.01%, and [P]<0.015%.

Abstract: A method, apparatus and system for processing a composite waste source, such as e-waste, is disclosed. The composite waste source may comprise low-, moderate and high-melting point constituents, such as plastics, metals and ceramics. The composite waste source is heated to a first temperature zone, causing at least some of the low-melting point constituents to at least partially thermally transform. The composite waste source is subsequently heated to a second, higher, temperature zone, causing at least some of the moderate-melting point constituents to at least partially thermally transform. At least some of the at least partially thermally transformed constituents may be recovered. The method, apparatus and system disclosed may provide for the recovery and reuse of materials which would otherwise be sent to landfill or incinerated.

Abstract: A system for creating a second quantity of sinterable powder particles which have sizes falling within a second size range, from a first quantity of sinterable powder particles having sizes falling within a first size range, and where the sizes of the powder particles in the second size range are all larger than those in the first size range. In one embodiment the system has a heating component responsive to a predetermined temperature/time heating profile, which heats the first quantity of powder particles using the temperature/time heating profile, to cause partial sintering of the powder particles, which creates a new plurality of powder particles which have an increased dimension.

Abstract: A steel for high-strength aluminum clad substrate, comprising the following chemical elements by mass percent: C: 0.008-0.02%, 0<Si?0.005%, Mn: 0.25-0.5%, P: 0.018-0.03%, Al?0.005%, N: 0.0040-0.010%, Ti: 0.02-0.04%, O: 0.02-0.050%, and the balance being Fe and other inevitable impurities. The manufacturing method therefor comprises the steps of: (1) smelting and casting; (2) reheating: reheating a casting blank to 1180° C.-1250° C.; (3) rough rolling; (4) finish rolling; (5) coiling; and (6) cooling to room temperature. The steel for high-strength aluminum clad substrate has good strength and good plasticity.

Abstract: A method for operating a blast furnace with which, even in the case where there is an increase in the powder ratio of coke to be charged into the blast furnace, it is possible to achieve the stabilization of blast furnace operation. The method includes blowing air through a tuyere disposed in a lower part of the blast furnace, successively measuring a particle size distribution of coke transported to the blast furnace, and adjusting at least one of a blast volume and a coke ratio in accordance with an index derived from the particle size distribution.

Abstract: Described herein is a method of manufacturing an aluminium alloy rolled product of a heat-treatable aluminium alloy, comprising: semi-continuous casting a heat-treatable aluminium alloy into a rolling ingot; homogenizing of the rolling ingot to a peak metal temperature (PMT) and whereby said aluminium alloy has a specific energy associated with a DSC signal less than 2J/g in absolute value; hot rolling of the rolling ingot in multiple hot rolling steps into a hot rolled product having a final rolling gauge of at least 1 mm, whereby the hot rolled product during at least one of the last three rolling steps has a temperature less than 50° C. below PMT; quenching of the hot rolled product at final rolling gauge from hot-mill exit temperature to below 175° C.; optionally stress relieving and ageing of the quenched and optionally stress relieved hot rolled product.

Abstract: A hydrogen-rich blast furnace ironmaking system based on mass-energy conversion, comprising a water electrolysis system (2). The water electrolysis system (2) is separately connected to a hydrogen storage tank (3) and an oxygen storage tank (4); a gas outlet of the hydrogen storage tank (3) is connected to a hydrogen compressor (5); an outlet of the hydrogen compressor (5) is connected to a hydrogen buffer tank (6); the hydrogen buffer tank (6) is connected to a hydrogen injection valve group (7); the hydrogen injection valve group (7) is connected to a hydrogen preheating system (8); and the hydrogen preheating system (8) is connected to a tuyere of a blast furnace body (1) or a hydrogen injector at the lower portion of the furnace body.

Abstract: A binder formulation for iron ore pellets, the formulation comprising one or more silicates and a processing aid, a pellet comprising this binder formulation and a process for producing iron ore pellets comprising mixing a binder formulation as described with particulate iron ore and forming pellets.

Abstract: A device of regulating a melting speed of an aluminum alloy smelting furnace burner. The device includes: a natural-gas flow-rate regulating assembly, an air flow regulating assembly; a natural gas burner, connected to the natural-gas flow-rate regulating assembly and the air flow regulating assembly and mounted in a melting zone of the melting furnace to melt aluminum alloy into an aluminum liquid; a scum filtration assembly, including a ceramic tube connected to a ceramic filter cylinder, a foam ceramic filter plate being merged in an aluminum liquid thermal-insulation pool; a rangefinder, mounted above the scum filter assembly; a controller for obtaining weights of the aluminum liquid corresponding to two adjacent time points, obtaining the actual melting speed according to a difference in the weights, and regulating the flow rate of the natural gas and the air flow to adjust the actual melting speed to reach a target melting speed.

Abstract: A comprehensive utilization method of beneficiation-metallurgy-chemical combination for germanium-rich lignite includes the following steps: 1) germanium-rich lignite sizing and grinding, 2) catalytic pre-oxidation, 3) nitric acid leaching, and 4) recycling and enrichment of germanium solution. The high effective extraction of germanium from the germanium-rich lignite was achieved via a combination of mineral beneficiation, hydrometallurgy, and chemical processing. Meanwhile, a high yield and high degree of depolymerization humic acid product was produced as byproducts. This method could not only effectively avoid high carbon emission and organic resource waste during conventional germanium-rich lignite pyrometallurgical processing, but also could produce humic acid as quality raw materials for metallurgical and agricultural industries, which has advantages of less environmental pollution, high extraction efficiency, and low comprehensive costs.

Abstract: Provided are an aluminum scandium alloy target and a method of manufacturing the same. The method comprises: preparing metal aluminum and metal scandium with purities of 99.99% or more respectively; mixing the metal aluminum into the metal scandium and smelting through a plurality of cycles to obtain a desired aluminum scandium alloy, in which the metal scandium account for 5-40 wt % and the metal aluminum account for 60-95 wt %; injecting the aluminum scandium alloy into a mold to obtain an aluminum scandium alloy target billet; and mechanically processing the billet to obtain the aluminum scandium alloy target. The method addresses the problems of the prior art in which uniform distributions of ingredients in the target are difficult to achieve, scandium is not uniformly distributed, and the target has a high oxide content, a low compactness, a low alloy purity and are unsuitable for manufacturing a sputter coating.

Abstract: Disclosed is a system and method for regulating aluminum precipitation during high-pressure acid leaching of laterite nickel ore, the system comprises an autoclave, a subsequent processing equipment, and a control device; the autoclave comprises a kettle body, a first feeding pipe, a second feeding pipe, and a discharge pipe, the subsequent processing equipment is connected to the discharge pipe and is used to process the reactants; the control device comprises a first valve, a second valve, a first pressure sensor, a second pressure sensor, an aluminum ion detection device, and a control unit. This disclosure can maintain the aluminum ion concentration in the leachate within an appropriate range, effectively reducing fluctuations in the production process, achieving stable production, and lowering production and maintenance costs.

Abstract: An aluminium alloy including 1.0-1.5 wt % Mn, up to 0.1 wt % Mg, up to 0.3 wt % Si, up to 0.3 wt % Fe, up to 0.1 wt % Cu, up to 0.25 wt % Cr, up to 0.1 wt % Ni, up to 0.3 wt % Zn, up to 0.1% Ti, up to 0.2 Zr. The allow also includes impurities, each no more than 0.05 wt. % and wherein the total of impurities is no more than 0.15 wt. %, with the balance being aluminum.

Abstract: Provided are a joint regulation method of material flow, energy flow, and carbon emission flow in a long-process steel enterprise, which belongs to a field of intelligent regulation and control technology of electric power system in the steel industry. The method includes: coupling a material-energy characteristic model of each production process of a steel enterprise and a carbon emission model of the steel enterprise, constructing a material flow-energy flow-carbon emission flow coupling model of the long-process steel enterprise, establishing an objective function using a minimize sum of an electricity purchase cost from a superior grid, a park carbon emission cost, and a production raw material cost as an object, and solving and obtaining an optimal operation mode of a joint regulation of the material flow-energy flow-carbon emission flow in the steel enterprise.

Abstract: An aluminum material, a preparation method thereof, and a bowl-shaped aluminum block are provided in the present disclosure, which relates to the technical field of alloys. Controlling the amount of manganese to 0.03-0.5 wt % in the present disclosure can improve the structure and enhance the impact mechanical properties of aluminum material; nickel can improve the strength and rust resistance of aluminum material, strontium can form an aluminum-strontium combination to adjust the crystal orientation of the metal lattice, which can improve molding and greatly enhance flexibility, and zirconium has a synergistic effect, which can improve the corrosion resistance of aluminum material, and improve surface gloss. The aluminum material provided by the present disclosure has a hardness of 23-30 HB, a tensile strength of 70-100 MPa, a yield strength of 35-59 MPa, and an elongation at break of 40-60%.

Abstract: The present invention provides a bright aluminum alloy which has high mechanical properties and in which the occurrence of uneven color is also suppressed to a high degree when an aluminum alloy die-cast material thereof that includes tungsten is subjected to anodization treatment. Also provided is a bright aluminum alloy die-cast material that is manufactured using said bright aluminum alloy. The aluminum alloy pertaining to the present invention includes 0.5-3.0% by mass of Mn, 0.1-2.0% by mass of Mg, 0.01-1.0% by mass of W, and 0.05-2.0% by mass of Si, the balance being aluminum and unavoidable impurities.

Abstract: Methods, compositions and systems are provided that improve recovery of copper from previously leached copper ores. A reset solution comprising a chelating agent and a reducing agent is provided to a heap of previously leached and passivated ore to improve copper recovery kinetics in subsequent leaching stages.

Abstract: A method for separating thorium and cerium from a solid concentrate comprising compounds of thorium, cerium and further rare earth metals, comprising: a) contacting the solid concentrate with an acid to achieve an acid composition with a pH of less than 0.5; b) reacting the acid composition obtained in step a) with ozone or heating the acid composition at a temperature ranging from 110° C. to 130° C. for a time period ranging from 1 to 3 hours, thereby oxidizing the cerium ions in the acid composition to an oxidation state of +IV; c) increasing, to at most 2, the pH of the composition obtained in step b), resulting in the precipitation of thorium and cerium compounds; and d) separating the precipitated thorium and cerium compounds from the composition obtained in step c) to obtain an aqueous acidic rare earth solution depleted in thorium and cerium.