An Electrochemical Quick Measure Device for Corrosion Resistance of Metallic Organic Coating

摘要

Quality of metallic organic coating can be inspected through its resistance since its resistance directly affects the quality. This paper designs an electrochemical measure device of rapidly testing the quality of metallic organic coating against corrosion, in which a megohmmeter can quickly measures the resistance of the metallic organic coating through array electrodes with high accuracy through two types of probes, the thread beam electrode and the node electrode. Thus, electrochemical parameters can be quickly estimated with high accuracy, such as n, percentage of low resistance measured by multipoint probe; (LogR)~(1/2), mean logarithm of the resistance; S, mean square deviation of resistance logarithm. Moreover, only 5 to 10 minutes are needed in each test, with repeated testing possible.