发明名称 |
COUNTERGRAVITY CASTING APPARATUS |
摘要 |
Apparatus for the vacuum, countergravity casting of metal in shell molds including a gas-permeable shell mold secured to the mouth of a vacuum box by a plurality of threadable mounting sites atop the mold engaged by self-tapping threads on the ends of rotatable shafts reciprocably slidable through the ceiling of the vacuum box.The mounting sites may comprise upstanding lugs atop the mold. |
申请公布号 |
DE3661692(D1) |
申请公布日期 |
1989.02.16 |
申请号 |
DE19863661692 |
申请日期 |
1986.11.05 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
VOSS, KARL D. |
分类号 |
B22D18/06;(IPC1-7):B22D18/06 |
主分类号 |
B22D18/06 |
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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