Anti-oxidation method of aluminum electrolytic prebaked anode carbon block covered with foil
A prebaked anode and aluminum electrolysis technology, which is applied in the field of aluminum electrolytic cell anode carbon block production, can solve the problems that the coating cannot effectively reduce the prebaked anode carbon block, the amount of spraying materials is large, and it has not been widely used. The effect of low price, less materials and convenient materials
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Embodiment 1
[0026] Embodiment 1: A kind of anti-oxidation method of aluminum electrolysis pre-baked anode carbon block covered with foil; using tar as adhesive, on the surface of pre-baked anode carbon block, after using adhesive to cover a layer of carbon fiber cloth, before bonding Water glass is used to spray on both sides of the carbon fiber cloth to form an anti-oxidation layer.
Embodiment 2
[0027] Embodiment 2: A kind of anti-oxidation method of aluminum electrolysis prebaked anode carbon block covered with foil; use resin as adhesive, after adopting adhesive to cover a layer of carbon fiber cloth on the surface of prebaked anode carbon block, before bonding A mixture of water glass and alumina powder is sprayed on both sides of the carbon fiber cloth to form an anti-oxidation layer, wherein the anti-oxidation layer: the mass fraction of aluminum oxide powder in water glass is 20%.
Embodiment 3
[0028]Embodiment 3: A kind of anti-oxidation method of aluminum electrolysis pre-baked anode carbon block covered with foil; use asphalt as adhesive, after adopting adhesive to cover a layer of carbon fiber cloth on the surface of pre-baked anode carbon block, before bonding A mixture of water glass and sodium fluoride powder is sprayed on both sides of the carbon fiber cloth to form an anti-oxidation layer, wherein the anti-oxidation layer: the mass fraction of sodium fluoride powder in water glass is 40%.
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