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Matches 601 - 650 out of 6,749

Document Document Title
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...  
WO/1996/002345
The present invention concerns a method, according to which powder compositions of iron-based particles are admixed with a thermoplastic material and a lubricant. The obtained mixture is compacted at a temperature below the glass-transit...  
WO/1995/032827
An iron-based powder for producing components by powder compacting and sintering consists essentially of 0.6-2.0 % by weight of Mo, 0.2-0.8 % by weight of P, 0-2 % by weight of Cu, 0-0.3 % by weight of Mn, 0.2-0 % by weight of C, and not...  
WO/1995/032048
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 Fe3Al to FeAl phases an...  
WO/1995/030502
The present invention concerns low alloy PM materials which after single pressing and sintering utilising traditional powder metallurgy processes and equipment combine high mechanical strength and high density with maintained precision o...  
WO/1995/027801
The invention covers the method and equipment for the addition and distribution of reaction material in vapour form (e.g. magnesium vapour) in cast iron baths in order to reduce the content of sulphur and/or modify the form of the graphi...  
WO/1995/026421
There is described a method of making a sintered article, the method comprising the steps of mixing a prealloyed ferrous powder having a composition in the following ranges in weight %: carbon 0.7-2.7/ chromium 3-6/ cobalt 5-10/ vanadium...  
WO/1995/024508
The invention relates to an inoculant for the manufacture of cast iron with lamellar, compacted or spheroidal graphite wherein said inoculant comprises between 40 and 80 % by weight of silicon, between 0.5 and 10 % by weight of calcium a...  
WO/1995/021452
A permanent magnet is provided which is comprised of, by atomic percent: 10-24 % R; 2-28 % boron, 0.1-18.12 % hydrogen; and balance being M. R is at least one element selected from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, ...  
WO/1995/021275
A process of forming a sintered article for powder metal comprising blending carbon and ferro alloys and lubricant with compressible elemental iron powder, pressing said blended mixture to form sintering said article, and then high tempe...  
WO/1995/019861
The invention relates to a method for the manufacturing of a composite metal product. More particularly, the invention relates to a method for the manufacturing of a composite product consisting of at least two stainless steel materials ...  
WO/1995/018877
The invention relates to a sintered friction material for the production of friction-linked components, in particular synchronising rings, and a friction-linked component, especially a synchronising ring, with such a sintered friction ma...  
WO/1995/009494
The present invention provides methods for combining antenna diversity (10, 12) and gain control (15, 19, 17) in a communications system using a single chain of receiver characteristics. A number of input parameters related to various ch...  
WO/1995/008006
A process is disclosed for producing sintered parts from a molybdenum-containing steel alloy by atomisation, pressing and sintering.  
WO/1995/008005
Method for production of ferrosilicone in an electric reduction furnace, by using iron-containing, quartz-containing and carbonaceous materials. The reduction furnace is, in addition to Si-containing materials, supplied with agglomerates...  
WO/1995/003995
The present invention relates to a method for producing microsilica having a reflectivity between 65 and 90 % in a smelting furnace for production of ferrosilicon or silicon by using a charge comprising an SiO2-source and a solid carbona...  
WO/1995/004362
A process for manufacturing an Alnico system permanent magnet is disclosed in which the alloy powder of the Alnico system having the proper composition is manufactured through a rapid solidification process, so that the crushability and ...  
WO/1995/002024
The invention is directed to a plasma sprayable powder for coating surfaces such as cylinder bores of an internal combustion engine, comprising grain size agglomerates of (i) a plurality of solid lubricant particles (15a, 15b, 15c, 15d, ...  
WO/1994/027764
A chromium-base alloy steel powder for high-strength sinter with high tensile strength, high fatigue strength and high toughness suitable for the use as automotive parts, office automation equipment parts and the like. The steel powder c...  
WO/1994/027763
The present invention relates to eutectic alloy systems, such as white irons, in which a primary phase grows out of the melt when the melt is cooled below the liquidus temperature and comprises pouring the molten metal alloy at a tempera...  
WO/1994/026946
An object of this invention is to provide a method of and an apparatus for manufacturing medium and low carbon ferromanganese, capable of reducing the running cost and manufacturing medium and low carbon ferromanganese at a low cost. To ...  

Matches 601 - 650 out of 6,749