Iron-based powder for powder metallurgy

Details Iron-based powder for powder metallurgy Iron-based powder for powder metallurgy

B - Operations, Transporting

22

F

B22F 1/00 (2006.01) B22F 1/02 (2006.01) B22F 3/02 (2006.01)

Patent

CA 2699033

Disclosed is an iron-based powder for powder metallurgy, which is obtained by making a flowability improver particle containing 50-100% by mass of carbon black adhere to the surface of an iron powder particle through a binder. This iron-based powder for powder metallurgy is excellent in flowability, and can be uniformly filled into a thin-walled cavity. This iron-based powder for powder metallurgy can be compacted with high ejection force, while maintaining sufficient strength for a sintered body during a sintering process that follows the compaction process.

L'invention concerne une poudre à base de fer pour la métallurgie des poudres, qu'on obtient en faisant adhérer grâce à un liant des particules améliorant la fluidité contenant 50-100 % en masse de noir de carbone sur la surface des particules d'une poudre de fer. Cette poudre à base de fer pour la métallurgie des poudres est excellente en termes de fluidité et on peut remplir uniformément une cavité à parois minces avec celle-ci. Cette poudre à base de fer pour la métallurgie des poudres peut être comprimée avec une force d'éjection élevée, tout en conservant une résistance suffisante pour un corps fritté au cours d'un procédé de frittage qui suit le procédé de compression.

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