C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 38/12 (2006.01) B22F 3/16 (2006.01) B22F 5/00 (2006.01) C22C 33/02 (2006.01) C22C 38/22 (2006.01)
Patent
CA 2104607
A process of coining sintered articles of powder metal comprising: blending carbon, ferro manganese, and lubricant with compressible elemental iron powder, pressing the blended mixture to form the articles, high temperature sintering of the articles in a reducing atmosphere and then coining the sintered articles to final shape so as to narrow the tolerance variability of coined articles and substantially eliminate secondary operations.
Un procédé de matriçage d'articles frittés à base de poudres métalliques, comprend: le mélange de carbone, de ferromanganèse, et d'un lubrifiant avec une poudre de fer élémentaire compressible, le pressage du mélange ainsi réalisé pour former des articles, le frittage à haute température des articles en atmosphère réductrice et le matriçage des articles frittés à leur forme finale afin de réduire la variabilité de tolérance des articles matricés et d'éliminer pratiquement toutes les opérations secondaires.
Jones Peter
Lawcock Roger
Blake Cassels & Graydon Llp
Stackpole Limited
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