发明名称 |
METHOD FOR THE PRODUCTION OF A REFRACTORY FILTER |
摘要 |
A method for the production of closed edge filters suitable for filtering molten metal and filters made by such a method. The method comprises: providing a reticulated foam substrate having at least one first surface for forming a side face of the filter and two opposed second surfaces for forming the through-flow faces of the filter; applying a liquid comprising an organic coating component to the first surface; solidifying the organic coating component to form a filter precursor having a volatilisable coating on the first surface; impregnating the filter precursor with a slurry comprising particles of a refractory material, a binder and a liquid carrier; and drying and firing the impregnated filter precursor to form the filter having a closed edge. |
申请公布号 |
PT2385871(E) |
申请公布日期 |
2012.12.20 |
申请号 |
PT20100722733T |
申请日期 |
2010.03.19 |
申请人 |
FOSECO INTERNATIONAL LIMITED |
发明人 |
FRIEDHELM DEMEY;RENATE JAHRE;HANS RIETHMANN;MARIO ARRUDA;ANTONIO CASSARA;RAPHAEL NETO;FABIO DE OLIVEIRA;SUELI PEREIRA;KAZUHIRO NAZANO |
分类号 |
B01D39/20;C04B35/524;C04B35/573;C04B38/00;C04B38/06 |
主分类号 |
B01D39/20 |
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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