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| REGULARITY OF VARIATION OF CORROSION OF Pb, Al, Cu WITH CLIMATE |
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| 电信科学技术第五研究所 |
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Abstract By means of naturally burying and testing metal specimen seasonally, testing soil environment factors such as temperature, humidity, salinity and conductance every half a month, the rule of cable metal materials’ ( Pb, Al and Cu) corrosion rate varying with the seasonal changing of soil environment factors within one year in Yingtan was studied. The testing result indicated that there was relativity between Pb, Al and Cu corrosion rate during different burying periods and the varying of soil environment. The maximum corrosion rate occurred when spring and summer alternated (from April to July) when the soil environment factors altered severely. The corrosion rate of Pb which was the highest among the three kind of metals was 11 times of that of Al and 3 times of that of Cu as Pb was affected by pH of acid soil, dissolvable salinity (No3—，CO32- and HCO3－) and soil animalcule.
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Received: 30 May 2006
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