An iron-based metal powder for ultra-high-speed laser cladding comprising chemical composition and mass percentage of the metal powder of: C 0.6?1.0%, Cr 17.0?20.0%, Ni 5.0?6.5%, Mn 2.0?4.0%, Mo 1.0?1.5%, Ti 4.0?6.0%, B 1.0?1.5%, N 0.08?0.15%, Si?0.5%, P?0.030%, S?0.030%, balance of Fe and unavoidable impurities, wherein the particle size of the metal powder is 15?65 ?m, the fluidity is 16?20 s/50 g.

Methods are disclosed for producing product particles having a uniform size using a microwave plasma process. More particularly, methods of the present technology are used to manufacture product particles having a core at least partially surrounded by a shell. The core and shell of the product particles are chemically distinct. Methods of the present technology occur within a plasma chamber of a microwave plasma reactor and a microwave formed plasma is utilized to vaporize core precursor material.

A method and system for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced by the method. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, and chromite ore are provided into a plasma arc furnace. The scrap aluminum granules are produced from used aluminum beverage containers. The feed materials are heated, whereupon the aluminum in the aluminum granules produces an exothermic reaction reducing the chromium oxide and iron oxide in the chromite to produce molten low carbon ferrochrome with molten slag floating thereon. The molten low carbon ferrochrome is extracted, solidified and granulated into granules of low carbon ferrochrome. The molten slag is extracted, solidified and granulated into granules of slag.

A lead-based alloy containing alloying additions of bismuth, antimony, arsenic, and tin is used for the production of doped leady oxides, lead-acid battery active materials, lead-acid battery electrodes, and lead-acid batteries.

Powder metallurgy, in particular production of tungsten monocarbide spherical powders, which is a major component of metalloceramic hard alloys used for manufacture of tools, drill bits, steel alloying, wear-resistant coating cladding at elements operating in intensive wear conditions. The method includes melting of the starting material, and melt atomization with forming of spherical powder. As starting material a tungsten monocarbide grit is used. Melting and atomization of the material is implemented by continuous filling of grit into a rotating crucible of a centrifugal atomization device under an inert atmosphere and melting it by a plasma arc. After that an annealing of the obtained powder is made at a temperature of 1200-1400 C. during a time necessary for W.sub.2C breakup with subsequent cooling of the powder in a furnace. And, the production of tungsten monocarbide spherical powder with WC content of more than 70%.

A blasting medium for blasting a component, wherein the component comprises Al and/or Mg, especially an Al and/or Mg alloy, to a method of blasting a component, wherein the component comprises Al and/or Mg, especially an Al and/or Mg alloy, and a method of producing a blasting medium are described herein.

An atomization device includes a container and an atomization system. The container is sized and configured to be located within a build chamber of an additive manufacturing apparatus. The container includes a container opening in a top thereof. The container opening is sized and configured to receive an energy source of the additive manufacturing apparatus extended through the container opening or sized and configured to permit passage of energy from the energy source through the container opening. The atomization system includes a target substrate support including a device to vibrate the target substrate positioned within the container and is configured to cooperate with the additive manufacturing apparatus and utilize the energy to atomize a target substrate within the container. An additive manufacturing system and a method for atomizing a target substrate are also disclosed.

A method of producing iron powder by a water atomization process may include preparing a molten metal in a tundish, discharging the molten metal in a free-falling manner by opening an orifice formed on a bottom of the tundish, and producing iron powder by spraying water onto the free-falling molten metal using a pair of water spraying nozzles, an angle formed by the water spraying nozzles being at least 45.

The present invention provides a power manufacturing apparatus capable of preventing particle growth when fine powder is formed through a fluid, the apparatus comprising: a molten steel providing part for providing molten steel; and a cooling fluid spraying part which is arranged at a lower part of the molten steel providing part and sprays a cooling fluid on the molten steel in order to pulverize the molten steel provided by the molten steel providing part, wherein the cooling fluid spraying part forms a first flow for cooling the molten steel so as to pulverize the molten steel and a second flow for forming a descending air current in the molten steel.

A powder metallurgy wear-resistant tool steel includes chemical components by mass percent of: V: 12.2%-16.2%, Nb: 1.1%-3.2%, C: 2.6%-4.0%, Si: 2.0%, Mn: 0.2%-1.5%, Cr: 4.0%-5.6%, Mo: 3.0%, W: 0.1%-1.0%, Co: 0.05%-0.5%, N: 0.05%-0.7%, with balance iron and impurities; wherein a carbide component of the powder metallurgy wear-resistant tool steel is an MX carbide with a NaCl type face-centered cubic lattice structure; wherein an M element of the MX carbide comprises V and Nb, and an X element comprises C and N.