Method for the production of a refractory filter

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United States of America Patent

PATENT NO 9518307
APP PUB NO 20140284853A1
SERIAL NO

14283672

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Abstract

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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 volatilizable 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.

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Patent Owner(s)

  • FOSECO INTERNATIONAL LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arruda, Mario Sao Paulo, BR 2 5
Cassara, Antonio Sao Paulo, BR 2 5
De, Oliveira Fabio Sao Paulo, BR 2 5
Demey, Friedhelm Borken-Marbeck, DE 2 5
Jahre, Renate Gladbeck, DE 2 5
Nakano, Kazuhiro Toyokawa, JP 38 284
Neto, Raphael Sao Paulo, BR 2 5
Pereira, Sueli Sao Paulo, BR 2 5
Riethmann, Hans Borken, DE 2 5

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