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采用熔炼法制备Cu 2 5Ni 10Cr铝电解金属阳极 ,并进行氧化实验和电解实验研究。结果表明 ,合金阳极在空气中的氧化动力学曲线遵循抛物线变化规律 ,而在纯的氧气中的氧化动力学曲线偏离了抛物线规则。电解极化条件下的腐蚀结果与不同的试验条件相关。在不同温度、阳极电流密度和氧化铝浓度条件下 ,于组成为NaF AlF3 NaCl CaF2 Al2 O3的电解质体系中电解 ,结果显示电解极化腐蚀的速率随电解质中氧化铝浓度的增高而减小 ,随温度的增高而增大。电解过程运行平稳 ,该阳极周围产生大量气泡 ,电解平稳时 ,槽电压在 4.0～ 4.6V之间波动。低温铝电解能够发挥金属阳极的优越性
The Cu 2 5Ni 10Cr aluminum electrolysis metal anode was prepared by the melting method and the oxidation and electrolysis experiments were carried out. The results show that the oxidation kinetics of the alloy anode in the air follows the parabolic curve, whereas the oxidation kinetics in pure oxygen deviates from the parabolic rule. Corrosion results under electrolytic polarization are related to different test conditions. The results show that the rate of electrolytic polarization corrosion decreases with the increase of the concentration of alumina in the electrolytes at different temperature, anode current density and alumina concentration in the electrolyte system composed of NaF AlF3 NaCl CaF2 Al2 O3 Increase the temperature increases. Electrolysis process is stable, a large number of bubbles around the anode, electrolysis steady, the tank voltage fluctuations between 4.0 ~ 4.6V. Low-temperature aluminum electrolysis can play the advantages of metal anodes