发明名称 |
Investment casting with exothermic material |
摘要 |
Method and investment shell mold for casting comprising introducing molten metallic material into an investment shell mold to fill a mold cavity and provide an upper surface of the molten metallic material above the mold cavity. An initially closed, destructible region of the mold then is broken to provide an entry opening through which exothermic material is placed on the upper surface of the molten metallic material to provide a source of molten metallic material to accommodate shrinkage of a casting as it solidifies in the mold cavity.
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申请公布号 |
US6446698(B1) |
申请公布日期 |
2002.09.10 |
申请号 |
US20010804404 |
申请日期 |
2001.03.12 |
申请人 |
HOWMET RESEARCH CORPORATION |
发明人 |
SODERSTROM MARK L.;BRINEGAR JOHN |
分类号 |
B22C9/02;B22C9/04;B22C9/08;B22D27/06;(IPC1-7):B22D23/00;B22D7/10;B22D27/00 |
主分类号 |
B22C9/02 |
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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