CORROSION-PROOF CERAMIC FOAM FILTER WITH LOW EXPANSION RATIO FOR FILTRATION OF MELT ALUMINIUM Russian patent published in 2010 - IPC B01D39/06

Abstract RU 2380136 C1

FIELD: technological processes, filters.

SUBSTANCE: invention is related to filters for melt materials. Ceramic foam filter is proposed for melt aluminium alloys, which contains core rich in aluminium oxide and shell of borosilicate glass, chemical composition of which includes the following components: 20-70 wt % Al₂O₃, 20-60 wt % SiO₂, 0-25 wt % of oxides of the second group elements and 2-20 wt % B₂O₃. Core is made preferably from aluminium silicate.

EFFECT: invention makes it possible to create filter with high thermal and corrosion resistance, improved efficiency in manufacturing and ecological compatibility in use.

18 cl, 6 ex, 10 dwg

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RU 2 380 136 C1

Authors

Chi Feng

Khaak Dehvid P.

Obri Leonard S.

Dates

2010-01-27—Published

2007-04-02—Filed