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| Number | Title | Issue Date |
| 7691172 | Metallic powder for powder metallurgy whose main component is iron and iron-based sintered body Provided is iron-based metal powder for powder metallurgy including a metallic soap containing at least one or more types selected from a group of Ag, Au, Bi, Co, Cu, Mo, Ni, Pd, Pt, Sn, Te and W having a higher standard oxidization potential than iron, and an iron ... | 04/06/2010 |
| 7604678 | Powder metallurgical compositions containing organometallic lubricants The present invention relates to improved metallurgical powder compositions, methods for the preparation of those compositions, and methods for using those compositions to make compacted parts. The metallurgical powder compositions comprise a base metal powder, such... | 10/20/2009 |
| 7572312 | Sintered valve seat and production method therefor A sintered valve seat includes: a matrix; 5 to 40 mass % of a hard phase dispersed in the matrix, the hard phase containing 48 to 60 mass % of Mo; 3 to 12 mass % of Cr; 1 to 5 mass % of Si; and the balance of Co and inevitable impurities; and a structure in which a ... | 08/11/2009 |
| 7491256 | Iron-based powder composition The invention concerns an iron-based powder composition comprising, in addition to the iron-based powder, 0.02% and 1.0%, weight of a machinability improving additive, comprising calcium fluoride and hexagonal boron nitride. The invention also concerns the additive ... | 02/17/2009 |
| 7387658 | Method of making a cemented carbide powder mixture and the resulting cemented carbide powder mixture A method of making cemented carbide at which powders forming hard constituents and powders forming binder phase are wet milled together with a pressing agent is disclosed. The slurry is dried, preferably by spray drying, compacted into bodies of desired shape and si... | 06/17/2008 |
| 7328658 | Slug for industrial ballistic tool A frangible projectile for expelling from an industrial ballistic tool may be formed by a powder metallurgy process. A preferred embodiment of slug consists essentially of compacted and optionally sintered material and comprises up to 35% ferrotungsten in particulat... | 02/12/2008 |
| 7314498 | Sintered alloys for cam lobes and other high wear articles An iron-based sintered powder metal article for cam lobe and other high temperature, high wear applications requiring excellent net-shape stability during sintering comprises a powder metal mixture consisting essentially of, by weight, 0.5–3.0% Mo, 1–6.5% Cr, 1â... | 01/01/2008 |
| 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 |
| 7300490 | Iron-based mixed powder for powder metallurgy and sintered body An iron-based mixed powder for powder metallurgy having improved machinability, without degrading the mechanical property of a sintered body made by compacting the iron-based mixed power. The iron-based mixed powder comprises a mixture of an iron-based powder, a pow... | 11/27/2007 |
| 7300489 | Powder metallurgical compositions and parts made therefrom Metallurgical powder compositions are provided that include calcium aluminate additives, i.e., calcium aluminate or calcium aluminate containing powders, to enhance the machinability and durability of compacted and sintered parts made therefrom. The compositions gen... | 11/27/2007 |
| 7294166 | Metal-graphite brush A brush body 4 of a metal-graphite brush 2 is composed of a commutator side portion 6 which contains graphite, copper and a metal sulfide solid lubricant, and a lead side portion 8 which contains graphite and copper but does not contain a... | 11/13/2007 |
| 7282078 | Wear-resistant sintered contact material, wear-resistant sintered composite contact component and method of producing the same A wear-resistant iron-based sintered contact material is provided which is sintered by powder sintering so as to have high density, high seizure resistance and wear resistance. A wear-resistant iron-based sintered composite contact component composed of the wear-res... | 10/16/2007 |
| 7264719 | Particles with silver carried and producing method thereof To provide particles for water disinfection which are hard to be suspended and are hard to be diffused in water which is suitable for use of disinfecting water and which are capable of developing disinfection effect fully and method of producing the same. Par... | 09/04/2007 |
| 7261951 | Copper based sintered contact material and double-layered sintered contact member With the objectives of alleviating the property of attacking on the mating member by scratching-off of local agglutinates on the sliding contact surface, achieving improved wear resistance, and achieving improved seizure resistance through restraint of frictional he... | 08/28/2007 |
| 7250070 | Fractured powder metal connecting rod and a method of manufacturing the same A method of forming a powder metal fractured bearing component, such as a connecting rod, includes the step of forming a component blank having a bearing aperture for separation of the component blank into a main body and a bearing cap, wherein the component has a h... | 07/31/2007 |
| 7244317 | Dispensible brazing paste A dispensable brazing paste useful in lamp manufacturing includes a brazing powder and a water soluble vehicle that has water, glycerin, a binder, and a dispersant that includes ammonium stearate and ammonium citrate. Preferably, the brazing powder is 84-87 wt % of ... | 07/17/2007 |
| 7235116 | High temperature corrosion and oxidation resistant valve guide for engine application A powder metal component particularly suited for use as a valve guide in high temperature applications. The powder metal component according to a first embodiment has a chemical composition on a weight percent basis of about 0.1-2.0% C; about 8.0-18.0% Cr; about 1.0... | 06/26/2007 |
| 7217310 | Metal powder for powder metallurgy and iron-based sintered compact Provided is metallic powder for powder metallurgy having iron as its principal component and containing indium soap, or metallic powder for powder metallurgy further comprising at least one type selected among bismuth soap, nickel soap, cobalt soap, copper soap, man... | 05/15/2007 |
| 7217389 | Tungsten-containing articles and methods for forming the same Articles formed from powders containing tungsten and at least one binder. In some embodiments, the article contains at least one metallic binder. In some embodiments, the article contains at least one non-metallic binder, such as a polymeric binder. In some embodime... | 05/15/2007 |
| 7198553 | Corrosion resistant abrasive article and method of making An abrasive article includes a plurality of abrasive particles securely affixed to a substrate with a corrosion resistant matrix material. The matrix material includes a sintered corrosion resistant powder and a brazing alloy. The brazing alloy includes an element w... | 04/03/2007 |
| 7179318 | Sliding member The present invention aims at preventing abrasion of relatively sliding members under a high pressure or/and high temperature condition. It also aims at preventing seizure of the sliding contact surfaces at high temperatures. The sliding member of the present invent... | 02/20/2007 |
| 7165881 | Methods and apparatus for high-shear mixing and reacting of materials Methods and apparatus for high shear reacting and/or mixing of moving fluid streams of materials employ an interdiffusing and reacting zone formed in the space between two stationary surfaces, the surfaces being spaced apart a maximum distance of the sum of the thic... | 01/23/2007 |
| 7159519 | Slug for industrial ballistic tool A frangible projectile for expelling from an industrial ballistic tool may be formed by a powder metallurgy process. A preferred embodiment of slug consists essentially of compacted and optionally sintered material and comprises up to 35% ferrotungsten in particulat... | 01/09/2007 |
| 7160351 | Powder metal clutch races for one-way clutches and method of manufacture A method of fabricating clutch races for one-way clutch mechanisms includes compacting and sintering a ferrous-based powder metal to near-net shape to produce a core density of between about 6.8 to 7.6 g/cc and a race surface that is near-net shape. The cam surface ... | 01/09/2007 |
| 7156280 | Braze alloy compositions A nickel-based high-temperature braze alloy composition includes Cr, Hf, and B. Furthermore, a cobalt-based high-temperature braze alloy composition includes Cr, Hf, and B. The braze alloys can be used, for example, as a single homogenous braze. The braze alloys can... | 01/02/2007 |
| 7156743 | Mechanical fuse and method of manufacturing the same An inexpensive mechanical fuse having a high fatigue limit ratio and high rupture reliability, and superior in forming performance, and a method of manufacturing the same are presented. The mechanical fuse is composed of Fe-based sintered alloy, and comprises an inn... | 01/02/2007 |
| 7158346 | Heat assisted magnetic recording film including superparamagnetic nanoparticles dispersed in an antiferromagnetic or ferrimagnetic matrix Heat assisted magnetic recording systems with composite recording films are disclosed. The magnetic recording films include superparamagnetic nanoparticles dispersed in an antiferromagnetic or ferrimagnetic matrix. The matrix provides antiferromagnetic coupling with... | 01/02/2007 |
| 7153339 | Powder metallurgical compositions and methods for making the same Metallurgical powder compositions of the present invention include an iron based powder combined with a master alloy powder, as a mechanical property enhancing powder. The addition of master alloy powders has been found to enhance the mechanical properties of the fi... | 12/26/2006 |
| 7144440 | Hard particle, wear-resistant iron-base sintered alloy, method of manufacturing the same, and a valve seat A hard particle having improved adhesion to a base material, a wear-resistant iron-base sintered alloy, a method of manufacturing the same, and a valve seat are provided. The hard particle comprises 20% to 70% Mo by mass, 0.2% to 3% C by mass, 1% to 15% Mn by mass, ... | 12/05/2006 |
| 7141534 | Metal forming device including bearing with sintered anti-friction bearing surface A composite anti-friction bearing structure comprising a bearing substrate and an anti-friction layer. The bearing structure can be in the form of bushings, wear plates, wear rings, etc. The anti-friction layer includes particles of an alloy which combines lubricity... | 11/28/2006 |
| 7125435 | Powder metallurgy lubricants, compositions, and methods for using the same The present invention relates to improved metallurgical powder compositions that incorporate solid lubricants, methods for preparing and using the same, and methods of making compacted parts. The solid lubricants contain functionalized polyalkylene lubricants substi... | 10/24/2006 |
| 7115221 | Method for producing graphite powder with an increased bulk density A method for increasing the Scott density of synthetic and/or natural graphite powders of any particle size distribution, preferably of highly-pure graphite, by subjecting the graphite powder to an autogenous surface treatment. The powder is used, in particular, for... | 10/03/2006 |
| 7098360 | Processes employing multiple successive chemical reaction process steps and apparatus therefore The invention provides processes and apparatus for the production of materials requiring a plurality of chemical reaction steps. In the prior art the number of reaction vessels is minimized by performing two or more reactions together in the same vessel. Instead eac... | 08/29/2006 |
| 7094473 | Wear-resistant sintered contact material, wear-resistant sintered composite contact component and method of producing the same A wear-resistant iron-based sintered contact material is provided which is sintered by powder sintering so as to have high density, high seizure resistance and wear resistance. A wear-resistant iron-based sintered composite contact component composed of the wear-res... | 08/22/2006 |
| 7087318 | Copper based sintered contact material and double-layered sintered contact member With the objectives of alleviating the property of attacking on the mating member by scratching-off of local agglutinates on the sliding contact surface, achieving improved wear resistance, and achieving improved seizure resistance through restraint of frictional he... | 08/08/2006 |
| 7078112 | Mechanical fuse and production method for the same A mechanical fuse has further improved and stabilized fatigue limit ratio, and can obtain high reliability under a using condition in which cyclic loading is applied. The mechanical fuse includes a Fe-based sintered alloy that has at least one element of P at 0.15 t... | 07/18/2006 |
| 7056598 | Copper based sintered contact material and double-layered sintered contact member With the objectives of alleviating the property of attacking on the mating member by scratching-off of local agglutinates on the sliding contact surface, achieving improved wear resistance, and achieving improved seizure resistance through restraint of frictional he... | 06/06/2006 |
| 7052526 | Magnesium base composite material and its manufacturing method A magnesium base composite material is provided such that compound particles generated by a solid-phase reaction with magnesium are uniformly dispersed in a magnesium alloy body. The compound particles dispersed in the body comprise magnesium silicide (Mg2 | 05/30/2006 |
| 7045112 | Method of making manganese sulfide compositions Disclosed herein are compositions of a manganese sulfide (MnS) compound useful as additives for making a sintered product. Also disclosed herein is a method of making the composistions in which molybdenum (Mo) or Fe—Mo is added to the MnS compound to improve machi... | 05/16/2006 |
| 7033413 | Soft magnetic powder material, soft magnetic green compact, and manufacturing method for soft magnetic green compact A soft magnetic powder material which includes an iron system powdered particle having an insulating coat with high insulation performance, a polyamide system resin, and a thermoplastic resin having a melting point equal to or higher than 200° C. ... | 04/25/2006 |
