发明名称 |
ENGINE BLOCK MOLD PACKAGE WITH SINGLE EXTERIOR PARTING LINE |
摘要 |
An engine block mold package is assembled from resin-bonded sand cores in a manner that reduces parting lines on the exterior surfaces of the mold package. An assembly of multiple cores (core package) is formed and includes multiple inter-core parting lines extending in different directions on exterior surfaces of the core assembly. The core package is disposed between a base core and a cover core configured to enclose the core package and form a single continuous exterior parting line about the assembled mold package.
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申请公布号 |
CA2382962(C) |
申请公布日期 |
2007.07.03 |
申请号 |
CA20022382962 |
申请日期 |
2002.04.23 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
SHADE, LARRY R. |
分类号 |
B22D19/00;F02F1/00;B22C9/00;B22C9/02;B22C9/10;B22C9/24;B22D15/00;B22D19/08;F02F7/00 |
主分类号 |
B22D19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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