Heat-insulating refractory material
AssigneeKrosaki Corporation
InventorsHideaki Kawabe, Shozou Hagiwara, Koji Kuga, Setsunori Hamaguchi
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Abstract
The present invention is intended to provide a heat-insulating refractory material, which does not contain environmentally and hygienically undesirable ceramic heat-insulating fibers, but only contains organic fibers to the extent necessary to improve adhesive rate upon spraying, and which can nevertheless achieve a specified heat-insulating effect. The heat-insulating refractory material includes a mixture containing 2-50 wt % of a foaming raw material foamed by heat at a temperature from 400.degree. to 1500.degree. C. and 50-98 wt % of a refractory powder, and a liquid binder which is added to the mixture in an amount of 20-250 wt % on the basis of the weight of the mixture.
Claims3
A heat-insulating refractory material comprising:
- a mixture containing 2-50 wt % of a foaming raw material selected from the group consisting of shirasu, vermiculite, obsidian, pearlite, pitch stone, expanded shale, and fly ash, said foaming raw being foamed by heat at a temperature from 400.degree. to 1500.degree. C. and 50-98 wt % of a refractory powder, and
- a liquid binder which is added to said mixture in an amount of 20-250 wt % on the basis of the weight of said mixture.
Dependencies are inferred from the claim text.