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公开(公告)号：US20180345362A1
公开(公告)日：2018-12-06
申请号：US15611821
申请日：2017-06-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Richard Osborne , Qigui Wang , Herbert W. Doty
IPC: B22D18/02
Abstract: A casting tool for a direct squeeze casting process that includes a cast mold tool with a contoured internal passage for better die thermal management. This enables the use of a grey cast iron mold material. A durable mold surface may also be formed through a nodular cast iron reaction with a Magnesium addition in either sand core or sand core coating.
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