FIELD: metallurgy, electrolysis.
SUBSTANCE: invention concerns tamped paste for filling of peripheral seams of aluminium receiving electrolytic cell cathodes. Cool-tamped paste of high swelling ability is prepared from mixture of pitch, light oily thinner and filler, including mixture of anthracite with grinded anodic stubs or burnt coke. Presence of grinded anodic stubs or burnt coke increases swelling ability of paste at the expense of sodium absorption almost four times more against usual sealing pastes. Cool-tamped paste also can contains hard fireproofing substance, such as TiB2. Invention also concerns method of cool-tamped paste manufacturing, manufacturing method of cathode brickwork.
EFFECT: receiving of improved tamped paste, allowing high erosion durability and becomes moist by aluminum, which can be used in cold conditions, for instance at temperature 30°C.
18 cl, 1 dwg, 2 tbl, 4 ex
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