铝合金阳极氧化的常见缺陷

:1997-12-01,,60,(100088),(),()()TheCommonSurfaceDefectsofAnodizedAluminumAlloysZhuZufang(GeneralResearchInstituteforNonferrousMetalsBeijing,100088,China)AbstractThecharacteristic,origin,andprotectivemeasureofcommondefectappearingonan2odizedaluminumalloyssurfacearebrieflypresented.Thedefecttypehereincludespits(patches)anduniformappearanceexceptforthedefectssuchasstreaks,dielines,weldmarksandlines.Theoriginofeachdefectandstageinwhichthedefectemergedfirstlyarelistedinthetable.Keywordsanodizing;surfacedefect;processresultedindefects1,,:(1)();(2);(3)()(),,1,:1.1,,,,,,,;,5,,921998,Vol.26,4,,1.2,,,,,,,,,,1.3(),,,,,(),SO2-4Cl-,()()1.4()4,,,,,,,SO2-4Cl-,,Zn0.015%,Cl-15ppmpH3.50.1%HNO351.5,,,Cl-Cl-200ppm5Cl-,1.6(),(),(),,,,;,2,,,(),()2.1()(),,,,031998,Vol.26,4,2.2,(),,,,,,,2.3()(),,,,,,,Mg2Si,Mg2Si,,25042.4,,,,2.5,,,0.05%,3ppm,Na2S,ZnS3Na2SZnS,,2.6(,),:(1)LD31Mg2Si,Mg/Si,(Fe,Mn),,,(2),,,,,,(3),,,1A/dm2,,,,131998,Vol.26,4,,,,50ppm,,20ppm,4(4),,,,,412(),1()():;1..,1996,23(11):33372..,1998,26(1):28303ShortEPandBryantA.J.aReviewofsomedefectsappearingonAnodizdAluminium.Trans.Inst,Met.Finish.1975,53(4):1691774.,‚Ë¿«†À,,,1994,1,7485BraceA.W.AnodiccoatingDefects.England:TechnicopyBooks,1992,13100,,1991,,,,,,19962.27,2.15,4018,199184322105m2,3500,10,:4.8104kW()10104kW15kt/a5kt/a500t/a21.5kt/a19946,2005,10104kW115kt20kt10kt9,3575kt/a,40104kW,()231998,Vol.26,4