搜索
董梅,丰慧,施国兰(,243000):,,:;;5%:TG174:A:10011447(2008)03003204ResearchonsaltspraytestofhotdipgalvanizedstripDONGMei,FENGHui,SHIGuolan(TechnologyCenterofMaanshanIron&SteelCo.Ltd.,Maanshan243000,China)Abstract:Basedonneutralsaltspraytests(NSS)ofhotdipgalvanizedstripwithdifferentlayer,weight,surfacetreatment,thispaperanalyzesthefactorsthatinfluencethecorrosionofhotdipgalvanizedstrip.Inaddition,measurestoimprovethecorrosionresistanceofhotdipgalvanizedstriparealsogiveninthepaper.Keywords:corrosion;neutralsaltspraytest;Zn5%Alalloy:(1973-),,,,.12004,,,,,,:,;,(),,,50,105%,,1:0.3~1.6mm,1000~1250mm,68~158g/m2,(P3prevoxC932)SGCC,-LF-CSP--,,:,QFOG,GB/T101251997:!,(NSS)150mm∀75mm,,NaCl(5#0.1)%,PH6.5~7.2,(35#2)∃,70~170kPa(100kPa),80cm21.5ml/h,24h5%5%%32%20086363ResearchonIron&SteelJune2008Vol.36No.322.1纯锌镀层镀锌板的耐盐雾腐蚀性能2.1.1白锈(5%)出现周期,,24h,(1)124h,,12~8h5%,5%,,25%5,100g/m2(2),,1,,,2.1.2红锈(5%)出现周期3,5%,,,0,1;0,0.50.5g/m23(5%)(1),,,,,,,45(2)1,,,(3)70g/m2,,(5%)%33%3,:4(96h,)2.2锌铝合金镀锌板的耐盐雾腐蚀性能5%,,,,3~8mm(,)2~4m,,2.2.1白锈(5%)出现周期,124h,2~3,,,,[1]2.2.2红锈(5%)出现周期,100g/m217,6,,6(5%)3,120g/m2,(5%)48h(2),180g/m2,(5%)72h(3),,44.1镀锌板的腐蚀,,,7,8,ZnO(Zn(OH)2[2]),w(O),w(O),,,:Zn-2e&Zn2+:O2+H2O+4e&4OH-:Zn+4OH-&Zn(OH)2&ZnO%H2O,;,,(7,10),,,,4.2镀锌板的耐蚀性能评价,%34%361,,,,1,,,,,5,:(1),,,;(2),,;(3),,,,,[][1].[J].,2000,(1):5862.[2].[M].:,2001:295.(:20071101)LiquiRob2CCM231LiquiRob,LiquiRob,,,20066,350t/a2,1LiquiRob200711LiquiRob,,LiquiRob,,,LiquiRob,LiquiRobLiquiRob3,,,(摘自世界金属导报)%35%3,: