Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures inventions 07/06

20060162491 - Method for fractional crystallisation of a molten metal: The invention relates to a method for fractional crystallisation of an at most partially solidified molten metal. According to the invention a layer of at most partially solidified molten metal to be crystallised is cooled by a layer of cooling liquid, which is present above and/or below the layer of...

20060162492 - Advanced erosion resistant carbide cermets with superior high temperature corrosion resistance: Cermets are provided in which a substantially stoichiometric metal carbide ceramic phase along with a reprecipitated metal carbide phase, represented by the formula MxCy, is dispersed in a metal binder phase. In MxCy M is Cr, Fe, Ni, Co, Si, Ti, Zr, Hf, V, Nb, Ta, Mo or mixtures thereof,...

20060162493 - Ni-coated ti powders: The present invention relates to coated powder, comprising a Ti-bearing core and a Ni-bearing coating, which can be used for the production of porous Ni—Ti articles by the self-propagating high temperature synthesis (SHS) method. The obtained articles are ideally suited for use in biomedical applications. According to the invention, a...

20060162494 - Alloy steel powder for metal injection molding improved in sintering characteristics and sintered article: e

20060162495 - Nanostructured metal powder and method of fabricating the same: The present invention relates to a nanostructured metal powder and a method of fabricating the same. A twin-wire electric arc process is performed to melt the wire tips, and metal melt is formed. Simultaneously, the metal melt is broken up into melt droplets by an atomizing device. The operating temperature...

20060162496 - Method and apparatus for producing metal powder: An object of the present invention is to provide a method for production of metallic powder in which aggregation of particles and growth to secondary particle after reducing process of the metallic powder particle can be prevented, to reliably obtain metallic particles containing few coarse particles and to meet requirements...

20060162497 - Processes for forming nanoparticles in a flame spray system: In one aspect, the process includes providing a precursor medium comprising a liquid vehicle and a precursor to a component, and flame spraying the precursor medium under conditions effective to form a population of nanoparticles, wherein the nanoparticles include the component. The population of nanoparticles, as formed, comprises less than...

20060162498 - Direct production of refined metals and alloys: The present invention provides a method of reducing metal oxide material to metal comprising the steps of forcibly circulating molten carrier material in a closed loop path serially through a charge reduction zone on one arm of the loop, a combined melt desulphurisation zone and post combustion or heating zone...

20060162499 - Apparatus for manufacturing molten irons by hot compacting fine direct reduced irons and calcined additives and method using the same: A method for manufacturing molten iron including the steps of producing reducing material of mixed hot fine direct reduced iron and calcined additives, the reducing material being produced from multiple fluidized beds; charging the reducing material to at least one pair of roller presses; roll pressing the reducing material through...

20060162500 - Fluidized bed method and plant for the heat treatment of solids containing titanium: The present invention relates to a method and a plant for the heat treatment of solids containing titanium and possibly further metal oxides, in which fine-grained solids are heated to a temperature of 700 to 950° C. in a fluidized bed reactor (1). To improve the energy utilization, it is...

20060156862 - Advanced erosion resistant carbonitride cermets: The invention includes a cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein, P is a metal selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Fe, Mn and mixtures thereof, Q is carbonitride, R...

20060156863 - Process of fabricating metal spheres: A method of forming metal spheres includes ejecting a precisely measured droplet of molten metal from a molten metal mass, buffering the molten metal droplet to reduce the internal kinetic energy of the droplet without solidifying the droplet and cooling the buffered droplet until the droplet solidifies in the form...

20060156864 - Method for producing high cleanness steel excellent in fatigue strength or cold workability: The present invention relates to a high-cleanliness steel having a high fatigue strength and high cold workability, and a method of making the high-cleanliness steel. The method adds a Li—Si alloy having a Li content between 20 and 40% and/or Li2CO3 as a Li-containing substance to a molten steel. The...

20060150768 - Powder mixture suitable for sintering to form a self-lubricating solid material: The invention relates to a novel self-lubricating solid material; to a method of preparing such a material from a powder mixture; to said powder mixture; and to mechanical parts made of said novel material. Said powder mixture comprises a powder of a metal alloy that is a precursor for the...

20060150769 - Preparation of alloys by the armstrong method: A method and apparatus for making alloys or ceramics by the subsurface injection of an equilibrium vapor of a boiling liquid of the ceramic or alloys constituents is disclosed. Various powders and products are disclosed....

20060150770 - Method of making composite particles with tailored surface characteristics: The invention describes a procedure to make metal containing composite particles and composite particle suspensions. The procedure is versatile and can produce particles with a variety of particle sizes and compositions. For some applications the metal composite particles can provide the functionality of wholly metallic particles including configurations where the...

20060150771 - Method for producing metal foam bodies: The invention relates to a method for producing a metal foam body, according to which a molten material containing gas is prepared and said molten material is left to solidify, thus forming a metal foam body. The aim of the invention is to produce high-quality metal foam bodies with a...

20060150772 - Method and system for producing metallic iron nuggets: Method and system for producing metallic nuggets includes providing reducible mixture (e.g., reducible micro-agglomerates; reducing material and reducible iron bearing material; reducible mixture including additives such as a fluxing agent; compacts, etc.) on at least a portion of a hearth material layer. In one embodiment, a plurality of channel openings...

20060150773 - Method and system for producing metallic iron nuggets: Method and system for producing metallic nuggets includes providing reducible mixture (e.g., reducible micro-agglomerates; reducing material and reducible iron bearing material; reducible mixture including additives such as a fluxing agent; compacts, etc.) on at least a portion of a hearth material layer. In one embodiment, a plurality of channel openings...

20060150774 - Method and system for producing metallic iron nuggets: Method and system for producing metallic nuggets includes providing reducible mixture (e.g., reducible micro-agglomerates; reducing material and reducible iron bearing material; reducible mixture including additives such as a fluxing agent; compacts, etc.) on at least a portion of a hearth material layer. In one embodiment, a plurality of channel openings...

20060150775 - Method and system for producing metallic iron nuggets: Method and system for producing metallic nuggets includes providing reducible mixture (e.g., reducible micro-agglomerates; reducing material and reducible iron bearing material; reducible mixture including additives such as a fluxing agent; compacts, etc.) on at least a portion of a hearth material layer. In one embodiment, a plurality of channel openings...

20060150776 - Metal nanoparticles and process for producing the same: The main object of the present invention is to manufacture, on an industrial scale, metal nanoparticles with excellent dispersion stability, and therefore provides metal nanoparticles containing a metal component, further containing at least one of phosphorus, nitrogen, and oxygen, and the average particle size being from 1 to 100 nm....

20060144188 - Metal powder with nano-composite structure and its production method using a self assembling technique: Methods, apparatuses and systems for producing powder particles of extremely small, highly uniform spherical shape and high sphericity, composed of metal including single metals and alloys, including nanocomposite structures, using a self-assembling procedure. The invention further includes the produced spherical particles. The metal spherical particles are produced whereby molten metal,...

20060144189 - Method for preparing colloidal solution and carrier having colloidal particles fixed on surface thereof, fuel cell cathode, fuel cell anode and method for preparing the same and fuel cell using the same, and low temperature oxidation catalyst, method for: A method for forming colloidal particles by boiling a solution containing a metal salt and a reducing agent; and a method for preparing a colloidal solution wherein the concentration of the metal salt in the solution is 1×10−4 mol/L or more and less than 4×10−4 mol/L; the equivalent concentration of...

20060144190 - Molten metal treatment agent, method of treating molten metal, apparatus and method for supplying covering gas for molten metal: A molten metal treatment consisting of a liquid mixture in which fluorinated ketone is dissolved in liquid carbon dioxide at 0.01 to 10 wt % is put in a container, and the molten metal treatment is vaporized, and is fed as a cover gas to be contacted with the surface...

20060144192 - Method for processing sulfide minerals and concentrates: The method is referred to hydrometallurgical process and serves for recovery of nonferrous, rare and precious metals from sulfide minerals and concentrates. The invention is aimed at creating conditions for the most complete extraction of metals, preventing formation of elementary sulfur. The objective is attained by means of the following:...

20060144191 - Method for recovery of nonferrous, rare and precious metals from robust minerals: The method is referred to hydrometallurgy process and it serves for recovery of nonferrous, rare and precious metals from robust (hard to process) minerals, which may contain natural carbon or other robust compounds. This invention is aimed at increasing the recovery of nonferrous, rare and precious metals from robust minerals...