B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 25/04 (2006.01) B22D 15/00 (2006.01)
Patent
CA 2490712
A mold (30) and a method of casting a part wherein the casting surface (32) of the mold (30) including the nooks and crannies (33, 34, 35, 36) of the mold (30) are bounded by pitted mold surfaces(32) with the pitted mold surfaces (32) having surface voids (40) therein that are sufficiently small to prevent the molten metal to enter therein; however, when the molten metal is poured in the mold (30) having the pitted surfaces (32) the molten metal solidifies on top of the pitted surface (32) without entering into the pits (39) in the mold surface (32), yet at the same time the molten metal flows smoothly over all the mold surfaces (32) including the structural nooks and crannies (33, 34, 35, 36) of the mold (30) to form a cast product that is substantially free of voids and fissures (21).
L'invention concerne un moule (30) et un procédé de moulage d'une pièce dans lequel la surface de moulage (32) du moule (30), y compris les évidements et les niches (33, 34, 35, 36) du moule (30), est limitée par des surfaces (32) de moule piquées. Lesdites surfaces (32) comportent des vides superficiels (40) qui sont suffisamment petits pour empêcher que le métal y pénètre ; cependant, au moment du coulage dans le moule (30) aux surfaces piquées (32), le métal fondu se solidifie sur la partie supérieure de la surface piquée (32), sans pénétrer dans les piqûres (39) de la surface du moule (32), tout en s'écoulant régulièrement sur toutes les surfaces du moule (32), y compris les évidements et les niches structuraux (33, 34, 35, 36), du moule (30), de manière à former un produit moulé sensiblement exempt de vides et de fissures (21).
Cain Tracy L.
Peterson Norman E.
Battison Williams Dupuis
Water Gremlin Company
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