B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 19/00 (2006.01) B22C 9/02 (2006.01) B22C 9/20 (2006.01) F02F 7/00 (2006.01)
Patent
CA 2382968
An engine block mold package is assembled from resin-bonded sand cores in a manner that reduces contamination of the engine block cast in the mold package by loose sand abraded off the cores during assembly. An assembly of multiple cores (core package) of the engine block mold package is formed apart from a base core. The core package is cleaned to remove loose sand therefrom. The cleaned core package then is positioned on the base core followed by assembly of a cover core to complete the engine block mold package for casting of an engine block therein.
General Motors Corporation
Gm Global Technology Operations Inc.
Gowling Lafleur Henderson Llp
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