精密機械
Print ISSN : 0374-3543
硝酸ソーダ水溶液による電解加工の研究
電流効率について
能戸 幸一奥平 弘明
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ジャーナル フリー

1976 年 42 巻 494 号 p. 209-214

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The effects of current densities, electrolyte temperature and wave forms of applied voltage on the current efficiencies were experimentally investigated in Electro-Chemical Machining using sodium nitrate solution. The results are as follows.
(1) The current efficiencies increase continuously from zero percent to the approximately constant value as the current densities increase. The current efficiencies in the region of the lower current density have the lower value, and increase critically over the region of these current density and at the higher current density increase to the approximately constant value.
(2) The current efficiencies at the high electrolyte temperature are lower than the ones at the low electrolyte temperature and have the critical increase rate at the higher current density than the ones at the low electrolyte temperature.
(3) The current efficiencies by the single phase full wave rectification or the three phase half wave rectification are lower than the ones by the three phase full wave rectification. These current efficiencies can be numerically obtained from the current efficiencies curve of the three phase full wave rectification.

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