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Matches 601 - 650 out of 6,791

Document Document Title
WO/1998/059083
A manufacturing method is provided for the production of high density, high carbon, sintered powder metal steels. The composition consists of iron based powder, graphite, lubricant, and possibly at least one alloying element from the gro...  
WO/1998/058093
The invention concerns a process for producing low oxygen, essentially carbon free stainless steel powder, which comprises the steps of preparing molten steel which in addition to iron contains carbon and at least 10 % of chromium, adjus...  
WO/1998/058093
The invention concerns a process for producing low oxygen, essentially carbon free stainless steel powder, which comprises the steps of preparing molten steel which in addition to iron contains carbon and at least 10 % of chromium, adjus...  
WO/1998/056523
A process and an apparatus for producing metallic glass which are capable of producing a bulk amorphous alloy of desired shape, in particular, a bulk amorphous alloy of desired final shape are provided. In the present invention, the molt...  
WO/1998/053939
The invention concerns a method of monitoring and controlling the furnace atmosphere when sintering PM compacts. According to the invention, the gases determining the carbon and oxygen potentials are measured continuously.  
WO/1998/050593
The method comprises preparing an iron-based powder mixture, and compressing and sintering the mixture to form the component. Said mixture comprises a first powder which forms 40 to 60 wt.% of the mixture and which is an atomised pre-all...  
WO/1998/049361
The present invention relates to the use of a pre-alloyed powder as a binder in the manufacture of diamond tools by hot sintering. This powder is characterized in that it has an average particle size of less than 10 $g(m)m as measured wi...  
WO/1998/042466
A method is provided for making a part from particulates of ferrous material. A layer of from greater than about 0 wt.% to about 50 wt.% of ductile metal or alloy is plated onto each of said particulates. The particulates are consolidate...  
WO/1998/041347
An iron base powder mixture capable of providing excellent fluidity at room temperature and in a warm state and reducing an extruding force in molding and having improved moldability; a method of production of this mixture; and a method ...  
WO/1998/040180
The invention relates to a steel having the following alloy composition in weight-%: 1.4-1.6 (C+N), max. 0.6 Mn, max. 1.2 Si, 3.5-4.3 Cr, 1.5-3 Mo, 1.5-3 W, wherein 6 < W�eq? < 9, and W�eq? = % W + 2 x % Mo, 3.5-4.5 V, max. 0.3 S, ma...  
WO/1998/025720
This invention concerns a process for the preparation of a free flowing agglomerated iron-based powder comprising mixing dry ingredients of: a) 63-95 % by weight of a fine base powder consisting essentially of iron and having a particle ...  
WO/1998/024941
An iron-based powder which is a mixture comprising a major proportion of a first alloy powder, a minor proportion of a second alloy powder and a proportion of a solid lubricant. The first alloy powder consists of, in weight percentages, ...  
WO/1998/025133
The present invention relates to a method for predicting the microstructure in which a certain cast iron melt will solidify comprising the steps of: a) taking a sample of the cast iron melt having a predetermined weight W; b) adding the ...  
WO/1998/022630
The present invention concerns additives for non-ferrous, liquid metals. The additives consist of compacted bodies of essentially pure iron particles.  
WO/1998/016666
A powder mixture suitable for use in a compaction and sintering process comprises three constituents. The first constituent is substantially carbon-free and is formed by one or more alloyed powders and has a composition lying in the rang...  
WO/1998/010438
Disclosed is a new mixture of binding alloys for the manufacture of SE�2?Fe�14?B permanent magnets, which are composed of SE�6?(Fe,Co)�13-x?Ga�1+x? and SE�2?Co�3?.  
WO/1998/010108
A process for preparing an aluminum alloy which can be produced on a commercial scale and has higher strength and toughness than the conventional aluminum alloys. The alloy comprises an $g(a)-aluminum phase comprising grains having an av...  
WO/1998/010437
Disclosed is a mixture of two binding alloys, which differ according to their rare earth element and gallium contents, for the manufacture of SE�2?Fe�14?B permanent magnets.  
WO/1998/010436
Disclosed is a new boron-free, iron-free binding alloy with the composition SE¿5?(Co,GA)¿3? for the manufacture of SE¿2?Fe¿14?B permanent magnets.  
WO/1998/005454
An iron-base powder mixture for powder metallurgy which exhibits enhanced fluidity and moldability when heated to about 423 K and filled into a mold for molding is prepared by adding a surface modifier to an iron-base powder and an alloy...  
WO/1998/005455
Powder metallurgically produced ferritic stainless steel articles are strengthened by alloying the ferritic material with a small amount of nickel (up to 3.0 % by weight). Alloying is carried out by either admixing nickel powder to the f...  
WO/1998/003692
A steel produced by densified and agglomerated high-purity pre-alloyed powder metallurgy is disclosed. The steel comprises < 1 wt.% of manganese, < 1 wt.% of silicon, 4.50-6.45 wt.% of chromium, 4-6 wt.% of molybdenum, 6.10-6.50 wt.% of ...  
WO/1998/003291
The invention concerns a process for producing a low-oxygen, low-carbon iron-based powder. The process comprises the steps of preparing a powder essentially consisting of iron and optionally at least one alloying element selected from th...  
WO/1997/048829
A powder-metallurgically produced hot-work steel consists (in wt %) of 0.25 - 0.45 carbon, 2.40 - 4.25 chromium, 2.50 - 4.40 molybdenum, 0.20 - 0.95 vanadium, 2-10 -3.90 cobalt, 0.10 - 0.80 silicon, 0.15 - 0.65 manganese, and the remaind...  
WO/1997/047418
The present invention concerns compacted and optionally presintered bodies, which are prepared from metal powders and which have densified surfaces, obtained by shot peening or rolling.  
WO/1997/043458
A method for making a high density powdered metal article is provided. The composition consists of iron based powder, lubricant, graphite and ferro alloy additions. Satisfactory results may also be achieved by using prealloyed molybdenum...  
WO/1997/043066
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 c...  
WO/1997/042351
A method of making a sintered article of powder metal having a carbon composition in the range of about 0.8 % to 2.0 % by weight, then shperoidizing the sintered article and then warm forming the sintered article at a temperature between...  
WO/1997/039153
An alloy of a high corrosion resistance used for a steel pipe for a boiler in equipment in which a fossil fuel or waste matter is burnt to generate energy, a steel pipe using this alloy, and a method of manufacturing the same steel pipe ...  
WO/1997/035184
The present invention relates to a method for producing compacted graphite cast iron using a thermal analysis step, where a) one or two sample vessels, where the inner surface is partially coated with a material, which will lower the con...  
WO/1997/023760
A method of manufacturing iron shot, wherein essentially carbon free iron powder is compacted so as to form small bodies, and the small bodies formed are heated for a sufficient period to obtain partial sintering of the iron particles.  
WO/1997/014523
Iron powder and iron-base powder mixture for powder metallurgy, which can provide sinters excellent in machinability and wear resistance. The iron powder contains 0.03-0.3 wt.% boron, at most 0.07 wt.% chromium, less than 0.3 wt.% mangan...  
WO/1997/007917
A new, cost effective process for the production of ultrafine particles which is based on mechanically activated chemical reaction of a metal compound with a suitable reagent. The process involves subjecting a mixture of a metal compound...  
WO/1997/005980
A self-lubricating sintered sliding material exhibiting extremely superior anti-seizure properties and wear-resistance properties even under an uneven or high load and a method for manufacturing the same material. The self-lubricating si...  
WO/1997/001651
This invention relates to a process of forming a sintered article of powder metal comprising blending graphite and lubricant with a pre-alloyed iron based powder, pressing said blended mixture to shape in a single compaction stage, sinte...  
WO/1996/042093
A permanent magnet of a magnetically anisotropic Fe-Mn-R sinter comprising on the atomic percentage basis 5-35 % at least one rare earth element (R) selected among ytterbium, erbium, thulium and lutetium, 1-25 % manganese and the balance...  
WO/1996/041031
The invention concerns a process for case hardening higher molybdenum-alloyed sintered steels. Immediately after sintering, the sintered steels are cooled to a temperature range in which the sintered steel has a minimum content of 'gamma...  
WO/1996/038595
A method for producing cast irons having a certain desired morphology of graphite crystals and containing graphite shape modifiers and/or inoculants, according to which: a) a sample quantity of the molten iron is taken from the batch of ...  
WO/1996/034989
In a process for producing hydraulic binders, raw steel and/or alloys like FeCr or FeV from chromium and/or vanadium-containing basic steel slags, the liquid steel slag is mixed with an additive from the group consisting of blast furnace...  
WO/1996/033831
High temperature resistant shaped parts are manufactured according to the invention by hot isostatic pressing of a powder of desired alloy composition put into a metal container. Preferably the alloy comprises 2-10 weight % aluminium, 10...  
WO/1996/034118
The invention is intended to provide a method making possible the technologically controllable and economical processing of high-melting-point, difficult-to-shape metal materials into semi-finished products like strips or wires. In the m...  
WO/1996/028580
Articles produced by a powder metallurgy process involving forming of a shape by compaction followed by sintering without the application of external pressure from a stainless steel alloy powder produced by rapid atomisation followed by ...  
WO/1996/026298
In a method of powder metallurgical manufacturing of a composite material containing particles in a metal matrix, said composite material having a high wear resistance in combination with a high toughness, the powder particles (I) of a f...  
WO/1996/024451
A method for manufacturing cast products which are cast as a one-piece structure having controlled inhomogeneous graphite structure. The products can be cast in a manner to obtain, for instance, a flakey grey cast iron structure in certa...  
WO/1996/021046
This invention covers the method and equipment for the continuous or discontinuous addition of reaction/inoculation materials necessary for desulphurization or the production of ductile iron obtainable during the passage of the base iron...  
WO/1996/016759
The invention concerns an iron-based powder for power-metallurgically producing components by powder compacting and sintering. The powder contains 0.25-2.0 % by weight of Mo, 1.2-3.5 % by weight of Mn, 0.5-1.75 % by weight of Si and 0.2-...  
WO/1996/011762
Methods of making high specific gravity shotgun shot and small arms projectiles from melts containing primarily tungsten and iron, and particularly including specific melting temperature depressants and using specific quenching both comp...  
WO/1996/012046
A process is described for producing amorphous metal alloys wherein impure ferrophosphorus slag, a by-product from a phosphorus-producing electric furnace, is used to supply phosphorus, chromium, vanadium and iron values to such alloys b...  
WO/1996/008329
Metallurgical powder compositions are provided which contain a metal powder in admixture with a solid, particulate polyether lubricant. The incorporation of the polyether lubricant enhances the green strength properties of compacted part...  
WO/1996/005007
The invention concerns an iron-based powder for powder-metallurgically producing components by powder compacting and sintering. The powder, which essentially consists of 0.7 - 2.0 % of Mo, 0.2 - 2.5 % by weight of Cr and 0 - 3.0 % by wei...  

Matches 601 - 650 out of 6,791