达克罗处理的检测方法

(49A3-405,210014):GB/T18684-2002,pH,,:;;:TG179;TQ153115:B:1004-227X(2004)01-0045-04InspectivemethodsofDacromettreatmentXIAOHe2sen(FlatA32405,No.49Xiaolingweijie,Nanjing210014,China)Abstract:Dacrometcoatingiscalledzinc/chromatecoatinginChineseNationalStandardGB/T18684-2002.Pa2rametersofDacrometsolutionincludingviscosity,density,pHvalueandconcentrationofCr()wereanalyzed.QualityofDacrometcoatingswereinspectedsuchascoatingquantity,thickness,adhesionandcorrosionresistance,etc.Keywords:Dacromet;zinc/chromatecoating;inspectivemethod1(DACROMET)GB/T186842002(zinc/chromatecoatings)[1],2211,2,ZAHN2#(2#),24,ZAHN2#241,,()(s):20,,,,:2003-06-09:2003-11-131(20)6080s212,,20:,,,11321140213pHpH,1220,pH(011),,60s5423120042Electroplating&FinishingVol.23No.1Feb.2004©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.pH316512214,12:(1)5mL100mL;(2)100mL;(3)10mL100mL,100mL;(4)()(102)100mL,250300mL;(5)250300mL()500mL,10mL,5mLw()20%5mLw()5%,0105mol/L,30s,(6)=314670105mol/L:()GB601-7721g/L3311,,70mg/dm2160mg/dm2200mg/dm2300mg/dm24(1)50100g(),011mg200g(2)(3)7080,w()20%(4)(5),(6)(7)=m1-m2:,,,240360mg/dm2312210m416m518m816m4,,(018m),,,,,,:=(315g/cm2)313313111mm,0105mm,5,11Gt0---------Gt1,5%Gt2,15%Gt3,35%Gt4,65%Gt565%6420042Electroplating&Finishing1©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.31312,,GB/T52701985114313121118mm(›Í¦-·),,45,,35,2:23131212,,3N/cm(Tesaband5411651),,314,,(5%):,16h,8cm2(21)mL/h,,6075,,315,100%,403,,,,(401),240h,31612,3060s,317:5g/L(20)413g/L(20)18h,,318,,31811(1)1mg;(2)7080w()5%1h(,),;(3);(4)7080w()20%;(5);(6);(7);(8);(9)10mL;(10)5mLw()20%;(11)5mLw()5%74©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(12)0105mol/L,30s,31812=m1-m2=0105mol/L319,,,31911:w()=20%,w()=80%:(702),3191231913,,,,,2/h/min2403036045500607209010001204,,10,3100,1000,4050,,:[1]GB/T18684-2002,.[:]111720,,,10816260,91;27;2003,20042005ICP-MSICP-MS3N5N8420042Electroplating&Finishing1©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.