Hoganas Ab

H&ouml;gan&auml;s Ab

Lars Hultman

Åsa Ahlin

Ola Andersson

Lisa Kjellén

Per-Olof Larsson

Göran Nord

Sven Allroth

Ye Zhou

Mats Alaküla

Henrik Andersson

Nils Jonsson

Britt Benemark

Peter Grahn

A method for producing a core and a method for producing an electrical machine. Said core has a body of soft magnetic material having a plurality of teeth and at least one magnetic flux cross section area enlarging element being made from a composite of a soft magnetic powder and a binder, said magnetic flux area enlarging element being arranged onto a tooth of said body.

Method for producing an electrical machine with a body of soft magnetic material

The invention concerns powder compositions consisting of electrically insulated particles of a soft magnetic material of an iron or iron-based powder and 0.1-2% by weight of a lubricant selected from the group consisting of fatty acid amides having 14-22 C atoms. Optionally a thermoplastic binder such as polyphenylene sulphide may be included in the composition. The invention also concerns a method for the preparation of soft magnetic composite components.

Composition for producing soft magnetic composites by powder metallurgy

The present invention concerns a method of improving the properties of powder metallurgically produced SMC compacted body consisting of a soft magnetic material of insulated powder particles and a lubricant, to a stress relieving heat treatment in a furnace until the component has reached a temperature of at least 400&#xb0; C. in an oxygen containing atmosphere having a CO content is less than 0.25% by volume.

Heat treatment of iron-based components

The invention concerns a process permitting the preparation of a new powder, which as such or further processed is useful within a wide variety of different fields and which has magnetic and electric properties. The powder includes at least 0.5% by weight of iron containing silicate and at least 10% by weight of metallic iron and/or alloyed iron and is prepared by a process comprising the steps of mixing an iron containing powder and a silicon containing powder; and reducing the obtained mixture at a temperature above about 450&deg; C.

Method for preparation of iron-based powder and iron-based powder

Spherical porous iron powder and method for producing the same

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Viken, Sweden

Lars Hultman