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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...
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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...
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7524352 |
Composition for the production of sintered molded parts
Certain preferred embodiments of the present invention relate to compositions for the production of sintered molded parts, components/parts produced therefrom, and methods for preparing such...
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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...
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7473296 |
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...
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7473295 |
Stainless steel powder
The invention concerns a stainless steel powder comprising at least 10% chromium by weight. The powder further comprises vanadium in an amount of at least 4 times the amount of carbon and nitrogen....
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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,...
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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...
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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...
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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...
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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...
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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...
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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...
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7014677 |
Iron based sintered body excellent in enveloped casting property in light metal alloy and method for producing the same
The object of the invention is to provide an iron based sintered body suitable for being enveloped in light metal alloy such as an aluminum alloy by casting, and a method for producing the same. A...
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6958084 |
Sintered cobalt-based alloys
A sintered material and a method for the production thereof is described. The material comprises an alloy selected from one of the groups having a composition comprising in weight %: either Cr...
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6951579 |
Sintered alloy for valve seats, valve seat and manufacturing method thereof
A sintered alloy for valve seats is comprised of carbon at 1 to 2 percent by weight, chromium at 3.5 to 4.7 percent by weight, molybdenum at 4.5 to 6.5 percent by weight, tungsten at 5.2 to 7.0...
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6951578 |
Polycrystalline diamond materials formed from coarse-sized diamond grains
PCD materials of this invention comprise diamond crystals that are bonded together with a catalyst/binder material. The PCD material is prepared by combining diamond grains with a catalyst/binder...
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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 7 a with graphite 7 b such that the graphite is present in an amount of...
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6890368 |
Dry self-lubricating dense material; a mechanical part formed from said material; a method of manufacturing said material
The present invention provides:
a material, which is dense, with a density of ≧90%, bulk dry self-lubricating, with a coefficient of friction of <0.3, constituted by a matrix that...
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6852174 |
Powder magnetic core
There is disclosed a powder magnetic core in which a permeability does not easily drop even when an applied magnetic field intensifies, comprising: a bulk body containing a main component of a...
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6843823 |
Liquid phase sintered braze forms
A braze preform and a method for making the braze preform are disclosed. The braze preform includes a filler metal that has been sintered to produce a liquid phase of at least a portion of the...
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6837915 |
High density, metal-based materials having low coefficients of friction and wear rates
High theoretical density, metal-based materials containing graphite or hexagonal boron nitride have low coefficients of friction and wear rates are useful for bearings, bushings and other articles...
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6833018 |
Powder metal materials including glass
A method of forming a powder metal material includes molding a compact from a powder mix comprising an iron-containing powder and glass, and subsequently sintering the compact. Also disclosed is a...
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6802883 |
Iron-based sintered alloy for use as valve seat and its production method
An iron-based sintered alloy, which consists of from 0.5 to 5% of Ni, from 0.5 to 4% of Cr, from 0.5 to 2% of C, the balance being Fe and unavoidable impurities, and which has a micro-structure...
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6758881 |
Metal-graphite brush and production method thereof
Ag particles produced by chemical reduction and having a mean particle size of 5 μm are added by 0.05-3 wt % and Zn are added by 2-10 wt % to a Pb-less brush body containing graphite, Cu and a...
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6679932 |
High machinability iron base sintered alloy for valve seat inserts
A ferrous sintered valve seat material is made of mixed powders comprising a sinter-hardenable phase and a finely dispersed carbide phase. The powder mixture comprises a sinter-hardening prealloyed...
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6676724 |
Powder metal valve seat insert
A powder metal engine component particularly suited for use as a valve seat insert in both light and heavy duty internal combustion engine applications. The powder metal engine component contains...
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6660056 |
Valve seat for internal combustion engines
A valve seat is provided in which wear resistance can be ensured by optimizing the matrix structure without dispersing of expensive hard particles, and therefore the machinability can be improved...
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6632263 |
Sintered products having good machineability and wear characteristics
An iron-based sintered powder metal mixture for valve guides, valve seat inserts and other high temperature, high wear applications requiring excellent net-shape stability during sintering...
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6616726 |
Material for valve guides
Disclosed is a sintered alloy material for valve guides, containing: 1.5% to 4% by mass of carbon; 1% to 20% by mass of copper; 0.1% to 2% by mass of tin; 0.01% or more than 0.01% and less than...
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6616725 |
Self-grown monopoly compact grit
A self-grown monopoly compact grit and high pressure, high temperature process for preparing the same. The high pressure, high temperature sintered/synthesized monopoly compact grit is used in...
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6599345 |
Powder metal valve guide
A powder metal blend for making a powder metal part especially a valve guide 14 for an internal combustion engine particularly suited for operation where there is little or no engine oil...
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6572671 |
Addition of h-BN in stainless steel powder metallurgy
In the invention, a stainless steel powder of the desired composition is either directly mixed with a h-BN powder, compressed and sintered or the stainless steel powder is compressed, impregnated...
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6527823 |
Powder for dust cores and dust core
To provide a powder for dust cores capable of improving magnetic properties such as magnetic permeability in a molded compacted powder magnetic core and mechanical properties such as size precision...
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6524363 |
Diamond coated cutting tools and method of manufacture
A coated body that has a substrate of tungsten, carbon, and cobalt, and wherein the substrate presents a surface. Eta phase is present at the surface of the substrate. Fibrous tungsten carbide...
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6511945 |
Lubricant powder for powder metallurgy
The invention concerns new lubricants comprising a combination of a polyethylene oxide and an oligomer amide and an improved metallurgical powder composition comprising a major amount of an...
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6461401 |
Composition for binder material particularly for drill bit bodies
A composite structural metal use, for example, in drill bit bodies is disclosed. The metal includes powdered tungsten carbide, and binder metal consisting of a composition by weight of manganese in...
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6423419 |
Molybdenum-sulphur coatings
An unbalanced magnetron sputter ion plating system has a first magnetron with a first target of metal sulphide (e.g. MoS 2 ) and a second magnetron with a second target of metal (e.g. Titanium). In...
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6391083 |
Mixture for powder metallurgy product and method for producing the same
A mixture for a powder metallurgy product, including iron powder, graphite powder and copper (Cu) of about 3.0 to about 5.0 weight percent. Iron powder includes iron grains which contain MnS...
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6361738 |
Method of producing R-Fe-B permanent magnet, and lubricant agent and release agent for use in shaping the same
The method of producing an R—Fe—B magnet of the present invention is characterized in that R—Fe—B alloy fine powder is molded in a magnetic field and sintered using a lubricant for molding...
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6355208 |
Die lubricant and iron-based powder mixture for warm compaction with die lubrication, and processes for producing high-density iron-based green and sintered compacts
A process for producing a high-density iron-based green compact is provided that can form a green compact with a high density. Also provided is a process for producing a sintered compact from the...
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6344280 |
Swash-plate of swash-plate type compressor
A swash plate for a swash plate compressor, wherein aluminum alloy containing 12 to 60% of Si and, as required, 0.1 to 30% of Sn is sprayed onto the iron or aluminum base plate of the swash plate...
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6340377 |
High-temperature wear-resistant sintered alloy
The invention relates to an iron-based high-temperature wear-resistant sintered alloy. This alloy contains 3.74-13.36 wt % W, 0.39-5.58 wt % V, 0.2-5.78 wt % Cr, 0.1-0.6 wt % Si, 0.39-1.99 wt % Mn,...
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6337141 |
Swash-plate of swash-plate type compressor
The seizure resistance of an Al-based flame-sprayed layer formed on the swash plate of a swash-plate type comressor is increased to such a level comparable to that of a flame-sprayed bronze layer....
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6303235 |
Copper-based sliding alloy
There is provided a copper-based sliding alloy excellent in wear resistance and anti-seizure property. A phase of 2 to 30 wt. % lead is dispersed in the copper alloy. This lead phase contains 0.1...
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6302937 |
Sintered alloy having superior wear resistance
The present invention provides a sintered material having high mechanical strength and superior wear resistance, and to a process of manufacture therefor. A sintered alloy having superior wear...
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6264718 |
Powder metallurgy product and method for manufacturing the same
A powder metallurgy product which is made from constituent including iron powder. The iron powder includes iron grains which contain machinability improving element in the iron grains. The...
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6251157 |
Sintered alloy having superb wear resistance and process for producing the same
A sintered alloy having superb wear resistance comprising: composite phases dispersed in a matrix of the sintered alloy; the composite phase consisting of; a particle group in which Cr carbide...
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6228138 |
Good machinability Fe-based sintered alloy and process of manufacture therefor
Machinability is drastically improved while maintaining some degree of hardness in an Fe-based sintered alloy. A good machinability Fe-based sintered alloy has an overall composition of, in percent...
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6136061 |
Nanostructured metal compacts, and method of making same
The present invention provides for nanostructured metal compacts exhibiting a preferred grain orientation formed from nanosize metal particles, preferably having anisometric morphology. The compact...
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