Hoeganaes Corporation

William J Mueller

James R Johnson

David R Walsh

Mary L Orfield

A method is provided for incorporating lubricant and a sintering aid into a metallurgical powder composition of iron-based powders. A particulate iron-based powder is contacted and wetted with solution of a metal salt of a fatty acid in an organic solvent. The solvent is removed to provide iron-based particles having a coating of the metal salt. The resulting self-lubricated powder composition can be compacted and sintered to produce a compact having superior strength properties.

Method of making lubricated metallurgical powder composition

Methods for manufacturing compressible and sinterable metal-coated metal powders are provided by this invention which include contacting core metal particles with a sol of a precursor of a coating metal. The sol has a viscosity of from about 10-10.sup.4 centipoise and comprises at least 1.0 weight percent of the precursor in a liquid medium. The final coating is produced by removing the liquid from the sol and then converting the precursor to form a substantially uniform layer of the coating metal on the surfaces of the core metal particles.

Method of producing metal coatings on metal powders

Methods for manufacturing compressible and sinterable metal powders are provided by this invention which include contacting core metal particles with a sol of a precursor of a metal. The sol has a viscosity of from about 10-10.sup.5 centipoise and comprises at least 1.0 weight percent of the precursor in a liquid medium. The final coating is produced by removing the liquid from the sol and then converting the precursor to form a substantially uniform layer of a Cu-Ni-Mo alloy on the surfaces of the soft iron or steel core metal particles.

Growing community of inventors

Colfax, WI, United States of America

William J Mueller