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 |
ZA201205539(B) |
申请公布日期 |
2013.09.25 |
申请号 |
ZA20120005539 |
申请日期 |
2012.07.23 |
申请人 |
FOSECO INTERNATIONAL LIMITED |
发明人 |
DEMEY FRIEDHELM;JAHRE RENATE;RIETHMANN HANS;ARRUDA MARIO;CASSARA ANTONIO;NETO RAPHAEL;DE OLIVERIA FABIO;PEREIRA SUELI;NAKANO KAZUHIRO |
分类号 |
B01D;C04B |
主分类号 |
B01D |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|