Refractory exothermic heat insulating articles

Details Refractory exothermic heat insulating articles Refractory exothermic heat insulating articles

B - Operations, Transporting

22

D

22/135

B22D 7/10 (2006.01) C04B 28/26 (2006.01)

Patent

CA 1103884

ABSTRACT OF THE DISCLOSURE Refractory articles are described which are of use e.g. as hot top lining slabs or riser sleeves in the metallurgical industry. The slabs are both heat insulating and they have exothermic properties when contacted by molten metal. The articles comprise by weight 8 to 20% of a particulate oxidisable metal, 5 to 25% of fibrous refractory material and 5 to 20% of an expanded perlite having a bulk density (untamped) of less than .15 g/cc. The overall density of the article is less than .75 g/cc.

307626

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