PURPOSE: To enable the application of a conductive antioxidant material to an electrode chuck and improve the antioxidant effects of the material at high temps. by compounding a fire-resistant aggregate, a binder, a carbon black, and a polymer emulsion.
CONSTITUTION: This material is obtd. by mixing 20-90wt.% fire-resistant aggregate, 2-30wt.% binder, 2-30wt.% carbon black, 0.05-10wt.% (solid) polymer emulsion, a graphite powder in an amt. of 20-70wt.% of the aggregate if necessary, and a water-sol. polymer in an amt. of 0.01-3wt.% of the sum of all the foregoing ingredients, adding 15-150wt.% water to the resulting mixture by pouring water from the outside, and subjecting the mixture to a homogenizing treatment. The material is applied to the side of an electrode for an arc furnace to form a dry coating film with a thickness of 100-200μm.
YOSHITOMI TAKENORI
HISA HIDEYUKI
