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用多种电化学方法对合肥发电厂经FeSO_4成膜处理后凝汽器铜管的耐蚀性进行评定,测试结果表明,经FeSO_4补膜11个月试样的耐蚀性优于一次性成膜试样,后者的耐蚀性又优于无膜试样。交流阻抗和恒电位阶跃方法是评价凝汽器铜管FeSO_4处理效果的有效方法。
The corrosion resistance of the condenser copper tube after FeSO_4 film formation treatment was evaluated by a variety of electrochemical methods. The test results show that the corrosion resistance of the 11-month Fe-4 film is better than that of the one-off The corrosion resistance of the latter is better than that of the non-membrane specimen. AC impedance and constant potential step method is to evaluate the effect of condenser copper tube FeSO_4 effective method.