发明名称 |
MOULDS FOR METAL CASTING AND SLEEVES CONTAINING FILTERS FOR USE THEREIN |
摘要 |
FS 1391 A mould for metal casting has a mould cavity and a sprue communicating directly with the mould cavity and located in the sprue a sleeve of refractory material having a cellular ceramic filter fixed therein. The mould, which has no running system apart from the sprue, may be a sand mould or a metal die for producing castings by gravity or low pressure diecasting. The cellular ceramic filter may be a honeycomb type of structure having cells which extend between two outer surfaces of the filter or a structure having interconnecting cells such as a ceramic foam. |
申请公布号 |
CA1304559(C) |
申请公布日期 |
1992.07.07 |
申请号 |
CA19890588962 |
申请日期 |
1989.01.24 |
申请人 |
FOSECO INTERNATIONAL LIMITED |
发明人 |
SNOW, GEORGE;SANDFORD, PHILIP |
分类号 |
B22C9/08;B22D1/00 |
主分类号 |
B22C9/08 |
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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