发明名称 |
Novel sand/silicate compositions for foundry molds/cores |
摘要 |
Foundry mold and core compositions comprising sand, a silicate binder and a hardening agent include an alumina "demolding" agent having an average grain size distribution of less than 40 mu , preferably between 0.2 and 5 mu .
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申请公布号 |
US4233076(A) |
申请公布日期 |
1980.11.11 |
申请号 |
US19780970793 |
申请日期 |
1978.12.18 |
申请人 |
RHONE-POULENC INDUSTRIES |
发明人 |
BLANC, JEAN-PIERRE;MEILLER, FRANCOIS |
分类号 |
B22C1/02;B22C1/18;(IPC1-7):B28B7/34 |
主分类号 |
B22C1/02 |
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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