发明名称 |
PROCESS FOR THE LOST-FOAM CASTING, UNDER CONTROLLED PRESSURE, OF METAL ARTICLES |
摘要 |
An improvement to the process for the lost-foam casting of metal articles. According to the process, the casting takes place under a controlled pressure which initially increases at a rate between 0.003 and 0.3 MPa for a first period of at most 5 seconds from the begining of the rise in pressure. The pressure then increases during a second period at a rate higher than the rate of increase during the first period, until the maximum desired pressure is attained.
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申请公布号 |
US5088544(A) |
申请公布日期 |
1992.02.18 |
申请号 |
US19900594706 |
申请日期 |
1990.10.09 |
申请人 |
ALUMINIUM PECHINEY |
发明人 |
GARAT, MICHEL |
分类号 |
B22D27/09;B22C9/04;B22D18/00;B22D18/04;B22D23/00;B22D27/13 |
主分类号 |
B22D27/09 |
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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