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| Number | Title | Issue Date |
| 7329302 | Lubricants for powdered metals and powdered metal compositions containing said lubricants Particulate lubricants are disclosed which comprise discrete particles of a fatty monoamide, especially oleamide and discrete particles of at least one other powder metallurgy lubricant, which provide a synergistic free-flowing composition; there are also provided n... | 02/12/2008 |
| 7300488 | Powder metal composition and method for producing components thereof The present invention concerns a powder metal composition for producing powder metal components comprising a Co-based pre-alloyed powder, with irregularly shaped particles comprising at least 15% by weight Cr and less than 0.3% by weight C, admixed with graphite. | 11/27/2007 |
| 7288224 | Method of producing a sputtering target A sputtering target contains a target material including as constituent elements Ag, In, Te and Sb with the respective atomic percents (atom. %) of α, β, γ and δ thereof being in the relationship of 0.5≦α | 10/30/2007 |
| 7226492 | High-powder tungsten-based sintered alloy Tungsten-based alloy material sintered at a high sintering power that may contain additive elements soluble in the nickel and selected from the group constituted, for example, by rhenium, molybdenum, tantalum, niobium, vanadium or a mixture of these, wherein, after ... | 06/05/2007 |
| 7144546 | Nitrided valve metals and processes for making the same Nitrided valve metals are described, such as nitrided tantalum and nitrided niobium. The nitrided valve metals preferably have improved flow properties, higher Scott Densities, and/or improved pore size distribution which leads to improved physical properties of the... | 12/05/2006 |
| 7135141 | Method of manufacturing a sintered body A method of manufacturing a sintered body, in which a material powder composed of metallic powder or alloy powder, a getter material having a higher oxidation potential than that of the material powder, and a hydride, which constitutes a hydrogen source, are sealed ... | 11/14/2006 |
| 7128173 | PCD face seal for earth-boring bit An earth-boring bit has a mechanical face seal assembly with PCD faces. The bit has a bearing shaft with a cone rotatably mounted on the bearing shaft. The seal locates between the bearing shaft and the cone for sealing lubricant therein. The seal includes at least ... | 10/31/2006 |
| 7060222 | Infiltration of a powder metal skeleton of similar materials using melting point depressant An infiltrant is used to fill a metal powder skeleton. The infiltrant is similar in composition to the base powder, but contains a melting point depressant. The infiltrant will quickly fill the powder skeleton, then as the melting point depressant diffuses into the ... | 06/13/2006 |
| 6967001 | Method for sintering a carbon steel part using a hydrocolloid binder as carbon source The invention refers to a new method for preparing sintered structural parts of carbon or tool steels or high speed steel having a carbon content of up to 2% by weight, wherein an agglomerated spherical powder comprising at least 0.5% of a thermo-reversible hydrocol... | 11/22/2005 |
| 6905530 | Metallic powder-molded body, re-compacted body of the molded body, sintered body produced from the re-compacted body, and processes for production thereof In a preliminary molding step 1, a metallic powder mixture 7 obtained by blending an iron-based metal powder 7a with graphite 7b such that the graphite is present in an amount of preferably not less than 0.1% by weight, more... | 06/14/2005 |
| 6838046 | Sintering process and tools for use in metal injection molding of large parts Improved drying, binder evaporation, and sintering processes which may be used in conjunction with specialized sintering tools to provide for the geometrically stable sintering of large, complex, metal injection molded preform parts or flowbodies. The improved proce... | 01/04/2005 |
| 6761852 | Forming complex-shaped aluminum components Although MIM (metal injection molding) has received widespread application, aluminum has not been widely used for MIM in the prior art because of the tough oxide layer that grows on aluminum particles, thus preventing metal—metal bonding between the particles. The... | 07/13/2004 |
| 6726740 | Weakly-magnetic sintered composite-material and a method for production thereof A sintered, magnetically soft composite is proposed, especially for use in solenoid valves, and a process for producing such a composite, in which initially a starting mixture from which the magnetically soft composite is formed after sintering is produced, having a... | 04/27/2004 |
| 6682693 | Carbon base member and process for producing the same An inclined function material is formed with an iron layer on a surface of a carbon material. This material can be used in a carbon base member and does not limit the choice of desired characteristics in a carbon base member. The process by which the carb... | 01/27/2004 |
| 6635357 | Bulletproof lightweight metal matrix macrocomposites with controlled structure and manufacture the same The lightweight bulletproof metal matrix macrocomposites (MMMC) contain (a) 10-99 vol. % of permeable skeleton structure of titanium, titanium aluminide, Ti-based alloys, and/or mixtures thereof infiltrated with low-melting metal selected from Al, Mg, or ... | 10/21/2003 |
| 6630009 | Metallic filled pastes A paste composition, including a binding agent charged with metallic powder, to be used in a solid freeform fabrication procedure, comprising: a) a solidifiable binding agent comprised of at least one polymerizable resin, with a viscosity of less than 4000... | 10/07/2003 |
| 6630101 | Method for producing powder metal gears A method of producing a gear from a metallurgical powder includes molding at least a portion of the powder to provide a gear preform. The gear preform is sintered and hot formed, and subsequently may be carburized. The gear preform is resintered and coole... | 10/07/2003 |
| 6595821 | Rotary anode for X-ray tube comprising an Mo-containing layer and a W-containing layer laminated to each other and method of producing the same A high-quality and high-reliability rotary anode target for X-ray tubes, of which the mechanical strength at high temperatures is increased and which is applicable not only to low-speed rotation (at least 3,000 rpm) but also even to high-speed rotation at... | 07/22/2003 |
| 6582651 | Metallic articles formed by reduction of nonmetallic articles and method of producing metallic articles A process for forming a shaped metallic article, including the steps of combining the starting materials, forming the starting materials into a shape to produce a nonmetallic metal precuror article of a certain geometry, and converting the nonmetallic art... | 06/24/2003 |
| 6517773 | Direct metal fabrication of parts with surface features only A method of directly fabricating metal parts with surface features only requires first preparing a mold of the desired metal part. A powder blend is poured into the mold, which includes a base metal, a lower melting temperature alloy of the base metal, an... | 02/11/2003 |
| 6503443 | Metallic powder molding material and its re-compression molded body and sintered body obtained from the re-compression molded body and production methods thereof In a preliminary molding step 1, a metallic powder mixture 7 obtained by blending an iron-based metal powder 7a with graphite 7b such that the graphite is present in an amount of preferably not less than 0.1% by weight, more preferably not less than 0.3% ... | 01/07/2003 |
| 6436163 | Metal filter for high temperature applications A porous metal filter possessing enhanced anticorrosive properties is provided including sintered metal particles composed of an alloy composition of iron aluminide having a range in concentration corresponding to Fe3 Al to FeAl phases and havi... | 08/20/2002 |
| 6395406 | Methods for preparing and applying coatings on metal-based substrates, and related compositions and articles A method for preparing an aluminum alloy-containing coating composition is described. A slurry containing a selected amount of aluminum is combined with at least one additional slurry containing a selected amount of a second metal which forms an alloy wit... | 05/28/2002 |
| 6383446 | Method and system for automatic electrical sintering The present invention is a method of automatically loading powder material into a sintering mold and subsequently effecting electrical sintering to the powder material in the sintering mold.... | 05/07/2002 |
| 6355211 | Method for manufacturing high performance components A method for producing high performance components by the consolidation of powdered materials under conditions of hot isostatic pressure. The method uses the inclusion of reactive materials mixed into pressure-transmitting mold materials and into the powd... | 03/12/2002 |
| 6344169 | Method for compaction of powders for powder metallurgy A method for compacting powders for powder metallurgy comprises packing powders for powder metallurgy formulated with a lubricant in a compacting die applied with a lubricant on inner wall surfaces thereof, and subjecting the powders to warm or hot compac... | 02/05/2002 |
| 6284191 | Method of manufacturing iron aluminide by thermomechanical processing of elemental powers A powder metallurgical process of preparing iron aluminide useful as electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high ... | 09/04/2001 |
| 6280684 | Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium A sputtering target for fabricating a recording layer of a phase-change type optical recording medium contains a compound or mixture including as constituent elements Ag, In, Te and Sb with the respective atomic percent (atom. %) of , ଲ, γ a... | 08/28/2001 |
| 6254998 | Cellular structures and processes for making such structures A method for making foam structures suitable for use as mechanical energy absorbers, structural members, filters, catalyst carriers or the like. A composite rod comprising an outer shell and an inner core is formed of respective mixtures of powders. The m... | 07/03/2001 |
| 6228508 | Process for preparing a metal body having a hermetic seal Disclosed is a process for preparing a metal body via metal powder molding techniques. First and second component parts are conventionally injection molded from a metal powder molding material. The first ultrasonic part is molded to have an ultrasonic ene... | 05/08/2001 |
| 6224823 | Compacting auxiliary agent for producing sinterable shaped parts from a metal powder The invention relates to a process for producing sinterable metallic shaped parts from a metal powder, which is mixed with an auxiliary compacting agent containing at least in part components from the polyalkylene glycol family, is filled into a compactin... | 05/01/2001 |
| 6214288 | Method for the preparation of a rare earth permanent magnet An improvement is proposed in the powder metallurgical method for the preparation of a rare earth-based permanent magnet comprising the steps of compression-molding a magnet alloy powder into a powder compact and sintering the powder compact into a sinter... | 04/10/2001 |
| 6203753 | Method for preparing high performance ferrous materials The present invention provides a method for making metal parts from metal powder compositions comprising an iron base metal powder and an amide lubricant. The method comprises the steps of compacting said composition, pre-sintering the compacted compositi... | 03/20/2001 |
| 6099796 | Method for compacting high alloy steel particles A method for producing compacted, fully dense articles from atomized tool steel alloy particles by placing the particles in a deformable container, and isostatically pressing the particles at an elevated temperature to produce a precompact having an inter... | 08/08/2000 |
| 6093368 | Plural layered metal repair tape A base metal repair tape includes a first layer formed braze alloy bonded together with fibrillated polytetrafluoroethylene, a second layer formed from powdered base metal bonded together by fibrillated polytetrafluoroethylene and a third layer comprising... | 07/25/2000 |
| 6093232 | Iron-carbon compacts and process for making them The present invention includes iron-carbon compacts and a process for making them. The process includes preparing a slurry comprising iron powder, furfuryl alcohol, and a polymerization catalyst for initiating the polymerization of the furfuryl alcohol in... | 07/25/2000 |
| 6090343 | Triphasic composite and method for making same A method for fabricating a triphasic composite such as a WC/Co/diamond composite with a high volume fraction of diamond in a WC/Co matrix. The method involves sintering of a WC/Co powder compact to develop a porous preform, which displays some rigidity an... | 07/18/2000 |
| 6066290 | Method and apparatus for transporting green work pieces through a microwave sintering system This disclosure sets forth a method and apparatus for microwave processing of green work pieces. Typically, individual green work pieces are formed in a small mold cavity crucible, and individual crucibles are then indexed into and out of a tube for a con... | 05/23/2000 |
| 6051184 | Metal powder injection moldable composition, and injection molding and sintering method using such composition A metal powder injection moldable composition which hardly causes debinding deformation is obtained. This composition consists of a metal powder and an organic binder. The components which constitute the organic binder are: a. polyoxymethylene having a Vicat s... | 04/18/2000 |
| 6045601 | Non-magnetic, high density alloy A high density, non-magnetic alloy is described along with a process for manufacturing it. The preferred composition for the alloy is approximately 95% by weight of tungsten and 5% of austenitic stainless steel. The process for manufacturing the alloy beg... | 04/04/2000 |
