Hoganas Ab

Mikhail Kejzelman

Paul Skoglund

Hilmar Vidarsson

Per Knutsson

Björn Skårman

Ola Andersson

Senad Dizdar

Anders Bergmark

The invention concerns a powder composition including an iron or iron based powder and a lubricating amount of an alkylalkoxy or polyetheralkoxy silane, wherein the alkyl or polyether group has between 8 and 30 carbon atoms and the alkoxy group includes 1-3 carbon atoms.

Iron-based powder

The present invention concerns a process for the preparation of high density green compacts comprising the steps of providing an iron-based powder essentially free from fine particles; optionally mixing said powder with graphite and other additives; uniaxially compacting the powder in a die at a compaction pressure of at least about 800 MPa and ejecting the green body. The invention also concerns the powder used in the method.

Method of preparing iron-based components

A powder metal tooth part and a method of producing a toothed sintered metal part by uniaxially compacting an iron or iron-based powder having coarse particles in a single compaction step, subjecting the part to sintering, and subjecting the part to a surface densifying process.

Sintered metal parts and method for the manufacturing thereof

The invention concerns a sintered metal part which has a densified surface and sintered density of at least 7.35 g/cmand a core structure distinguished by a pore structure obtained by single pressing to at least 7.35 g/cmand single sintering of a mixture of a coarse iron or iron-based powder and optional additives.

The invention concerns a powder composition including an iron or iron based powder and a lubricating amount of an alkylalkoxy or polyetheralkoxy silane, wherein the alkyl or polyether group has between 8 and 30 carbon atoms and the alkoxi group includes 1-3 carbon atoms.

The present invention concerns a new ferromagnetic powder composition comprising soft magnetic iron-based core particles wherein the surface of the core particles are surrounded by an insulating inorganic coating, and a lubricating amount of a compound selected from the group consisting of silanes, titanates, aluminates, zirconates, or mixtures thereof. The invention also concerns a process for the preparation of soft magnetic composite materials using the new powder composition.

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Malmö, Sweden

Mikhail Kejzelman