| HOGANAS AB (PUBL) Patent applications |
| Patent application number | Title | Published |
|---|
| 20120082587 | HIGH STRENGTH LOW ALLOYED SINTERED STEEL - A water-atomised iron-based steel powder is provided which comprises by weight-%: 0.45-1.50 Ni, 0.30-0.55 Mo, less than 0.3 Mn, less than 0.2 Cu, less than 0.1 C, less than 0.25 O, less than 0.5 of unavoidable impurities, and the balance being iron, and where Ni and Mo have been alloyed by a diffusion alloying process. | 04-05-2012 |
| 20110318214 | IRON VANADIUM POWDER ALLOY - A water atomised prealloyed chromium-free, iron-based steel powder is provided which comprises by weight-%: 0.05-0.4 V, 0.09-0.3 Mn, less than 0.1 Cr, less than 0.1 Mo, less than 0.1 Ni, less than 0.2 Cu, less than 0.1 C, less than 0.25 O, and less than 0.5 of unavoidable impurities, with the balance being iron. | 12-29-2011 |
| 20110262294 | MACHINABILITY IMPROVING COMPOSITION - An iron-based powder composition is provided comprising, in addition to an iron-based powder, a minor amount of a machinability improving additive comprising at least one silicate from the group of phyllosilicates. The technology further concerns the use of the machinability improving additive and a method for producing an iron-based sintered part having improved machinability. | 10-27-2011 |
| 20110103995 | IRON-BASED PRE-ALLOYED POWDER - A pre-alloyed iron-based powder is provided including small amounts of alloying elements which make possible a cost efficient manufacture of sintered parts. The pre-alloyed iron-based powder comprises 0.2-1% by weight of Cr, 0.05-0.3% by weight of Mo, 0.1-1% by weight of Ni, 0.09-0.3% by weight of Mn, 0.01% by weight or less of C, less than 0.25% by weight of O, and less than 1% by weight of inevitable impurities, the balance being iron. | 05-05-2011 |
| 20110037329 | INTEGRATED ROTOR POLE PIECES - A pole piece structure is provided to be used as part of an active rotor structure for an electrical rotary machine, wherein the active rotor structure is circular comprising pole pieces and permanent magnets magnetised in the circumferential direction of the rotor structure, wherein the rotor pole piece structure is a single structure with at least two individually spaced pole pieces connected by an integration bridge. Further provided is a method of manufacturing a rotor pole piece structure and a rotor for an electrical machine with a rotor pole piece structure. The assembly of magnets to the pole pieces is significantly enhanced using these rotor pole piece structures as described. | 02-17-2011 |
| 20110025141 | STATOR COMPACTED IN ONE PIECE - A compaction tool is provided for compacting an element from metal powder where the element has uniform axially displaced protrusions, and the tool comprises a die and a top and a bottom punch with punch surfaces. The top and bottom punch comprises displaceable opposing punch surfaces for displacing the metal powder there between before compacting the element. Additionally provided are a method for compacting an element from metal powder and an element made from such a method. | 02-03-2011 |
| 20110025140 | PERMANENT MAGNET ROTOR WITH FLUX CONCENTRATING POLE PIECES - A permanent magnet machine is provided comprising a stator and a rotor, the rotor being adapted to rotate relative to the stator, the rotor comprising a plurality of permanent magnets separated in the circumferential direction from each other by axially extending rotor pole pieces for concentrating the magnetic flux from the permanent magnets, the stator having a structure that defines axial limits of an air gap between the stator and the rotor for communicating magnetic flux between the stator and the rotor, wherein that at least some of the permanent magnets extend axially outside the axial limits of the air gap as defined by the stator structure. | 02-03-2011 |
| 20110014491 | IRON-CHROMIUM BASED BRAZING FILLER METAL - An iron-chromium based brazing filler metal is provided which exhibits an excellent wetting behavior on a stainless steel base material. The brazing filler metal produces a brazed joint which exhibits high strength and good corrosion resistance. The brazing filler metal is suitable for brazing stainless steel and other materials where corrosion resistance and high strength is required. Typical examples of applications are heat exchangers and catalytic converters. The iron-chromium based brazing filler metal powder according to the invention comprises: between 11 and 35 wt % chromium, between 0 and 30 wt % nickel, between 2 and 20 wt % copper, between 2 and 6 wt % silicon, between 4 and 8 wt % phosporous, between 0-10 wt % manganese, and at least 20 wt % iron. | 01-20-2011 |
| 20110006246 | FERROMAGNETIC POWDER COMPOSITION AND METHOD FOR ITS PRODUCTION - A ferromagnetic powder composition is described comprising soft magnetic iron-based core particles, wherein the surface of the core particles is provided with a first inorganic insulating layer and at least one metal-organic layer, located outside the first layer, of a metal-organic compound having the following general formula: (R | 01-13-2011 |
| 20100316521 | LOW ALLOYED STEEL POWDER - A water atomised prealloyed iron-based steel powder is provided which comprises by weight-%: 0.4-2.0 Cr, 0.1-0.8 Mn, less than 0.1 V, less than 0.1 Mo, less than 0.1 Ni, less than 0.2 Cu, less than 0.1 C, less than 0.25 O, less than 0.5 of unavoidable impurities, and the balance being iron. | 12-16-2010 |
| 20100233014 | IRON-BASED POWDER COMBINATION - A powder metallurgical combination is provided comprising an iron-based powder A comprising core particles of iron to which core particles nickel is diffusion alloyed and wherein said nickel diffusion alloyed to said core particles comprises 4-7% (preferably 4.5-6%) by weight of said iron-based powder A, and a powder B substantially consisting of particles of pure iron. Further a method is provided for preparing a powder metallurgical combination. | 09-16-2010 |
| 20100206129 | METALLURGICAL POWDER COMPOSITION AND METHOD OF PRODUCTION - An annealed pre-alloyed water atomised iron-based powder suitable for the production of pressed and sintered components having high wear resistance is provided. The iron-based powder comprises 10-below 18% by weight of Cr, 0.5-5% by weight of each of at least one of Mo, W, V and Nb, and 0.5-2%, preferably 0.7-2% and most preferably 1-2% by weight of C. The powder has a matrix comprising less than 10% by weight of Cr, and comprises large M | 08-19-2010 |
| 20100043662 | DIFFUSION ALLOYED IRON POWDER - A diffusion alloyed iron powder is provided wherein tungsten W is bonded to the surfaces of the particles of an iron or iron-based powder, and wherein the diffusion alloyed iron powder comprises by weight-%: 30-60 W, with the balance being essentially only iron and unavoidable impurities. | 02-25-2010 |
| 20100015432 | POWDER METAL POLYMER COMPOSITES - A method for producing a composite part is provided. The method comprises compacting a powder composition comprising a lubricant into a compacted body; heating the compacted body to a temperature above the vaporisation temperature of the lubricant such that the lubricant is substantially removed from the compacted body; subjecting the obtained heat treated compacted body to a liquid polymer composite comprising nanometer-sized and/or micrometer-sized reinforcement structures; and solidifying the heat treated compacted body comprising liquid polymer composite by drying and/or by at least one curing treatment. | 01-21-2010 |
| 20090252639 | METALLURGICAL POWDER COMPOSITION AND METHOD OF PRODUCTION - An annealed prealloyed water atomised iron-based powder is provided which is suitable for the production of pressed and sintered components having high wear resistance. The iron-based powder comprises 15-30% by weight of Cr, 0.5-5% by weight of each of at least one of Mo, W and V, and 0.5-2%, preferably 0.7-2% and most preferably 1-2% by weight of C. The powder has a matrix comprising less than 10% by weight of Cr, and comprises large chromium carbides. A method for production of the iron-based powder also is provided. | 10-08-2009 |
| 20090107292 | Lubricant for Powder Metallurgical Compositions - An iron-based powder metallurgical composition is provided comprising an iron or iron-based powder and a particulate composite lubricant, the composite lubricant comprising particles having a core comprising a solid organic lubricant having fine carbon particles adhered thereon. A particulate composite lubricant and a method for producing the same also are provided. | 04-30-2009 |
| 20090100964 | Bearing Housing - A bearing housing ( | 04-23-2009 |
| 20080302209 | Metallurgical Powder Composition - A metallurgical composition is provided for making compacted parts, comprising: (a) at least about 80 percent by weight of an iron or iron-based powder; (b) up to about 20 percent by weight of at least one alloying powder; (c) from about 0.05 to about 2 percent by weight of a binding agent comprising a C | 12-11-2008 |
