【摘要】 本文研究了海水中钢浮筏的阴极保护。浮筏由船板钢制造,表面涂9道油漆。所用牺牲阳极为棒状悬挂式、远距离铝基牺牲阳极。试验得出该浮筏的平均保护电流密度为14mA/m~2。在本研究中,作者采用了一种测定定长导线电压降的方法测定阳极的电流输出。所测得的阳极电流输出值与由Dwight修正式计算的结果大体相当。更多还原

【Abstract】 A protection experiment of a floating steel raft located in Zhonggang Port, Qingdao, was conducted by slender rod Al-basic sacrificial anode 66cm long and 10.4cm equivalent dia.. The floating steel raft is mode of shipbuilding steel plate and was given nine coats of paint. The anodes were suspended in sea water of 8.9℃ the lowest month mean temperature, 26℃ the highest, pH 7.9, salinity 30‰, and more than 3 m away from floating raft. A new, simple method was adopted to measure the anodic output current, (i.e., to measure the voltage drop on the leader cable given length) then to calculate the output current of anode by the ohm’s law. The value ofanode current measured by the method mentioned above is roughtly the same as the anodic current value calculated by modified Dwight formula. When the potential of the floating raft is in the protective range, the mean protective current density is about 14mA/m2.更多还原