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US 2003/0211002 A1Published application
Ferrous articles sintered using a fluidized bed
OwnerAlphonso Grau, Gregory Lavallee +1inventors
InventorsAlphonso Grau, Gregory Lavallee, Sylvain Allard
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Abstract
A process for preparing a sintered article of a compacted iron-based metallurgical powder. The green compact is sintered at a closely held predetermined temperature in order to achieve desired density and dimensional stability.
Claims10
A process for preparing a sintered article comprising the steps of:
- selecting an iron-based P/M powder;
- pressing the P/M powder to produce a green compact;
- and
- sintering the green compact at a predetermined temperature of 1120-1250° C. for up to 20 minutes, where the predetermined temperature is maintained ±1° C. for at least 5 minutes.
1 more element
A process for preparing a sintered article comprising the steps of:
- selecting an iron-based P/M powder;
- pressing the P/M powder to produce a green compact;
- and
- sintering the green compact at a predetermined temperature of 1120-1250° C. for up to 20 minutes, in a fluidized bed, where the predetermined temperature is maintained ±1° C. for at least 5 minutes.
1 more element
Dependencies are inferred from the claim text.