Refractory exothermic heating insulating articles

Details Refractory exothermic heating insulating articles Refractory exothermic heating insulating articles

1978-07-14

1980-05-06

Sebastian, Leland A.

Explosive and thermic compositions or charges

Metal or alloy or metalloid, each in particulate form, with...

106 3835, 106 65, 149 2, 252 62, C22C 3840

Patent

active

042016061

ABSTRACT:
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 oxidizable metal, 5 to 25% of fibrous refractory material and 5 to 20% of an expanded perlite having a bulk density (untamped) of less than 0.15 g/cc. The overall density of the article is less than 0.75 g/cc.

REFERENCES:
patent: 3558891 (1971-01-01), Yendrek et al.
patent: 3672918 (1972-07-01), Rocher et al.
patent: 3876420 (1975-04-01), Phoenix et al.
patent: 4008109 (1977-02-01), Norton

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