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前言众所周知,在铝电解槽里磁场和电流的相互作用产生作用于熔体的电磁力,导致产生静电作用和电动作用。静电作用使铝液表面产生圆拱形变形,而电动作用则产生旋涡运动和改变电解质-铝液界面的波动。在高电流强度电解槽里,这种波动影响电流效率和导致电解槽在大极距下操作。极距足够大时,波动就会
Preface It is well known that the interaction of the magnetic field and the current in an aluminum reduction cell produces an electromagnetic force that acts on the melt, resulting in both electrostatic and electrodynamic effects. Electrostatic action causes circular dome-shaped deformation on the surface of the molten aluminum, while the electric action produces vortex motions and changes the fluctuation of the electrolyte-aluminum liquid interface. In high current electrolyzers, such fluctuations affect the current efficiency and cause the cell to operate at large polar distances. When the polar distance is large enough, the fluctuation will be