METHOD OF ASSEMBLY OF ALUMINIUM ELECTROLYZER CATHODE SECTION Russian patent published in 1997 - IPC

FIELD: production of aluminium by electrolysis of cryolite-alumina melts. SUBSTANCE: at assembly of electrolyzer cathode section, consisting in installation of the carbon block of the existing in installation of the carbon block of the current-conducting metal rod in a groove on a layer of current-conducting material and its attachment in the groove by means of carbon paste, use is made of a layer of graphite powder as current-conducting material; the gap between the groove lateral wall and the surface is filled to height of 0.6-0.9 of the rod height with carbon paste containing, mas.% coke, 20-30; graphite, 20-30; pitch, 15-25; sodium fluosilicate, 3-8; sodium silicate glass, the balance; and the upper part of the groove is filled with carbon - containing paste containing, mas.%: coke, 20-40; pitch. 15-25; sodium fluosilicate, 3-8; sodium silicate glass, the balance. EFFECT: facilitated procedure. 3 cl