Ferrous powder compositions containing a polymeric...

B - Operations – Transporting – 22 – F

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B22F 9/16 (2006.01) B22F 1/00 (2006.01) C22C 1/05 (2006.01) C22C 32/00 (2006.01) C22C 33/02 (2006.01) H01F 1/26 (2006.01)

Patent

CA 2270107

Complexable polymeric binder-lubricant blends are disclosed for production by powder metallurgy techniques of ferrous compositions with remarkably high green strength upon compaction, or soft magnetic ferrous powder/resin composites with improved processability and magnetic properties. An exemplary composition consists of a ferrous powder, a thermoset phenolic resin and poly(ethylene oxide), both polymers exhibiting, when intimately mixed, strong intermolecular acid- base interactions giving rise to an interpolymer complex which imparts a high strength to the resulting ferrous powder compact.

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