牺牲阳极法在换热器防腐蚀中的应用

(1200mm,500,),,,,,;,,,,;(400),,,4,,,,,,,,1AbelRBecerra,etal.Gasket.USP54215942..,1995,(5):21223..,1995,12(6):80814,,..,2000,27(4):2002035..,1998,(3):36396,..,1998,13(1):1922(:2000204206)3()Zn,1,,3,,19703,,163711,1984,,703,,,352142000©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.2211()(Fe)(Fe3C),,1,2Fe=2Fe2++4e,,4e+2H2O+O2=4(OH)-,Fe2+(OH)-Fe(OH)2,,2Fe+O2+2H2O=2Fe(OH)21212,,,3311(Fe),1Fe,,,,,1Fe(),VZn=Zn2++2e-0176Cr=Cr2++2e-0156Mg=Mg2++2e-2134Al=Al3++3e-1167Fe=Fe2++2e-0144312,22,,,(),2,22mmmmmm162553051927533525315375,,MgAl,,(:2000205211)45©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.