C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 1/04 (2006.01) B22F 3/26 (2006.01) C22C 1/08 (2006.01)
Patent
CA 2409728
An infiltrant is used to fill a metal powder skeleton. The infiltrant is similar in composition to the base powder, but contains a melting point depressant. The infiltrant will quickly fill the powder skeleton, then as the melting point depressant diffuses into the base powder, the liquid will undergo solidification and the material will eventually homogenize. This process allows more accurate control of dimensions in large parts with uniform or homogeneous microstructure or bulk properties.
L'invention concerne un agent d'infiltration utilisé pour remplir un squelette de poudre métallique. La composition de l'agent d'infiltration est semblable à celle de la poudre de base, mais contient un agent de dépression du point de fusion. L'agent d'infiltration remplit rapidement le squelette en poudre et, pendant que l'agent de dépression du point de fusion se diffuse dans la poudre de base, le liquide se solidifie et la matière peut éventuellement s'homogénéiser. Ce procédé permet un contrôle plus précis des dimensions des grandes pièces avec une microstructure uniforme ou homogène ou des propriétés volumiques.
Allen Samuel
Lorenz Adam M.
Sachs Emanuel M.
Massachusetts Institute Of Technology
Smart & Biggar
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