Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Plural heating steps including sintering
Patent
1992-01-31
1993-12-07
Walsh, Donald P.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Plural heating steps including sintering
419 53, 252 6254, 148301, 264 66, B22F 100, C04B 3504, H01F 100
Patent
active
052681408
ABSTRACT:
A method is provided for producing a high strength iron based component by powder metallurgical techniques but without sintering. A powder composition of iron-based particles coated or admixed with a thermoplastic material is compacted under heat and pressure by traditional powder metallurgical techniques. The pressed component is then heat treated at a temperature above the glass transition temperature of the thermoplastic material for a time sufficient to bring the component to the heat treatment process temperature. The resulting component has increased strength and can be used as a structural component or as a magnetic core component.
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Hanejko Francis G.
Oliver Christopher
Quin Brooks
Rutz Howard G.
Chi Anthony R.
Hoeganaes Corporation
Walsh Donald P.
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