发明名称 |
FORM ZUM METALLGIESSEN |
摘要 |
A process for forming a mould or a core for casting molten metal by machining (e.g. cutting or drilling) to the desired shape a bonded particulate refractory material wherein the shear strength of the refractory particles is less than the shear strength of the bonds between the particles. The preferred particulate is aluminosilicate microspherers (e.g. "flyash floaters") and the binder is preferably based on silica (e.g. fumed silica/sodium hydroxide). The bonded particulate material is easily machined to form accurately dimensioned moulds or parts thereof. |
申请公布号 |
DE60123476(T2) |
申请公布日期 |
2007.07.05 |
申请号 |
DE2001623476T |
申请日期 |
2001.10.31 |
申请人 |
FOSECO INTERNATIONAL LTD. |
发明人 |
EL-DEMALLAWY, EMAD;RADWAN, HAMDY |
分类号 |
B22C1/00;B22C1/08;B22C1/10;B22C1/16;B22C1/18;B22C9/00;B22C9/02;B22C9/10;B28B1/00 |
主分类号 |
B22C1/00 |
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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