B - Operations – Transporting – 22 – F
Patent
B - Operations, Transporting
22
F
B22F 3/22 (2006.01) B22F 1/00 (2006.01)
Patent
CA 2334384
Molding compositions for shaping parts from stainless steel powders are disclosed. The process comprises the steps of forming a mixture comprising at least one of stainless steel powder, intermetallic compounds, components of metal matrix composites and a gel-forming material having a gel strength, measured at a temperature between 0 ~C and about 30 ~C and a gel comprising about 1.5 wt.% of the gel-forming material and water, of at least about 200 g/cm2, and water, and molding the mixture at a temperature sufficient to produce a self-supporting article comprising the powder and gel. The preferred gel-forming material is an agaroid and the preferred molding process is injection molding.
L'invention concerne des compositions de moulage destinées à former des pièces à partir de poudres en acier inoxydable. Le procédé consiste, dans un premier temps, à former un mélange qui comprend au moins une poudre d'acier inoxydable, des composés intermétalliques, des composants de matériaux composites à matrice métallique, un gélifiant possédant une force du gel qui, mesurée à une température entre environ 0· et 30· et avec un gel comprenant environ 1,5 % en poids de gélifiant et de l'eau, est égale ou supérieure à environ 200 g/cm?2¿, ainsi que de l'eau. On moule ensuite le mélange à une température suffisante pour produire un article autoporteur comprenant de la poudre et du gel. Le gélifiant préféré est un agaroïde, le procédé préféré étant le moulage par injection.
Burlew Joan Virginia
Duyckinck Rick
Fanelli Anthony
Snow Brian Jeffrey
Zedalis Michael Sean
Alliedsignal Inc.
Gowling Lafleur Henderson Llp
Rutgers The State University Of New Jersey
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