Refractory material of vitreous silica

Details Refractory material of vitreous silica Refractory material of vitreous silica

C - Chemistry, Metallurgy

03

C

C03C 8/14 (2006.01) B22C 1/00 (2006.01) C03C 3/06 (2006.01) C03C 8/02 (2006.01) C04B 35/14 (2006.01) C04B 35/66 (2006.01)

Patent

CA 2227839

The invention concerns a refractory material comprised essentially of vitreous silica and presenting an improved resistance to corrosion by molten metals, principally aluminium. It contains at least 0.1 % and no more than 10 % by wt. of barium sulfate. It has a crystallized silica content of less than 10 % and it is comprised of at least 75 % vitreous or amorphous silica.

Cette invention concerne une matière réfractaire, composée essentiellement de verre de silice, qui offre une résistance accrue à la corrosion par les métaux fondus, principalement l'aluminium. Cette matière contient au minimum 0,1 % et au maximum 10 % en poids de sulfate de baryum. Elle a un contenu en silice cristallisée inférieur à 10 % et elle est constituée de 75 % au minimum de verre de silice ou de silice amorphe.

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