Hoganas Ab (publ)

Hoganas Ab

Karin Olsson

Hilmar Vidarsson

Åsa Ahlin

Mats Larsson

Anna Ahlquist

An iron-based powder metallurgical composition is provided comprising an iron or iron-based powder and composite lubricant particles, with the composite lubricant particles comprising a core of 10-60% by weight of at least one primary fatty acid amide having more than 18 and not more than 24 carbon atoms and 40-90% by weight of at least one fatty acid bisamide, with the core having nanoparticles of at least one metal oxide adhered thereon. Further provided is a particulate composite lubricant as well as a method of preparing such lubricant.

Lubricant for powder metallurgical compositions

A metal powder composition including: an iron or iron-based powder composition, and a lubricating combination including a substance A, a substance B, and a substance C; wherein: substance A is a polyolefin, substance B is chosen from a group of saturated and unsaturated fatty acid amides, saturated and unsaturated fatty acid bisamides, saturated fatty alcohols and fatty acid glycerols, and substance C is an amide oligomer having a molecular weight between 500 g/mol and 30 000 g/mol; and wherein the amounts of respective substances A, B and C in weight percent of the iron or iron-based powder composition are: 0.05&#x2266;A+B&#x3c;0.4 wt %, C&#x2267;0.3 wt %, A+B+C&#x2266;2.0 wt %, and the relation between substances A and B is: B/A&#x3e;0.5. Also, a method of producing a metal powder composition and a method for producing a green component.

Growing community of inventors

Helsingborg, Sweden

Karin Olsson