常温低硝酸铝合金抛光清洗剂的作用机理探讨

,(,200061):LB,,,:;;;:TG175.3:A:10052748X(2008)0220074202ActionMechanismofAluminumAlloyPolishingwithLowNitricAcidBathatRoomTemperatureZHANGBo,XUWei(ShanghaiMint,Shanghai200061,China)Abstract:AnaluminunalloypolishingbathLBwasinitiated.Itsadvantageswereroomtemperatureoperation,freefromnitrogengassingofoxides,lessmetallossandlowcost.Theeffectsofcomponentsofthesolutionwasanalyzed,andthemechanismoftheactionofnitricacidinaluminumpolishingwasdiscussed.Themechanismofchemicalpolishingwasdescribedbymeansofanodicpolarizationcurvesofpassivemetals.Keywords:aluminunalloy;polishing;nitricacid;mechanism0.,,,100,,,,,,,,,700ml/L,50ml/L100ml/L,,,90,,,,,,,,LB1LBLB4050226ml/L45g/L22.5g/L,pH23LB,,1g/LLB23min,:,,,,,,,;,,;,,,;,,,,,,LB,35,,,,,29220082CORROSION&PROTECTIONVol.29No.2February2008:200710247:23min,,,,8.8cm2/g1%,2LB2.1LB50ml/L,35,,,,,:Al+6HNO3()Al(NO3)3+3H2O+3NO2,,,:Al+4HNO3()Al(NO3)3+2H2O+NO,,,125,1NO(25),%NO,L,%NO,L00.04142.160.50.763.191.01.0124.2021.48LB,,,,,,,,3NO+O=NO+NO3,2.2,,:Al2O3+6H+=2Al3++3H2O,,,[1],,,,,,,[2],GinsbergBan2mann.,()(),,,,,,lgIp,,2(1)1,1,,1,,(8)5::2H22H107(a)256(b)Zn2Ca2561,,,,40min,,,:[1].[M].:,1991:286-290.[2].[J].,1995(1):50-52.[3],.[J].,2002(4):25-27.[4],.[M].:,1992:14-15.[5]MHandke,AStoch,VLorenzelli.Afouriertransforminterferometricstudyofphosphatecoatingsoniron[J].JournalofMaterialsScience,1981(2):307-312.(75),,,,,,,,,,,CD[3]3LB,,:[1].[M].:,2004:32-3.[2].[M].:,2007:45-46.[3][M],5555(94),RTM(3)RTM,,:[1],.(RTM)[J].,2006,29(4):297-300.[2].[J].,2000,20(1):46-54.[3]FAbali,Shivakumar,KHamidiN.AnRTMdensifi2cationmethodofmanufacturingcarbon2carboncompos2itesusingprimasetPT230resin[J].Carbon,2003,41:893-901.[4],.[J].,2006,21(1):36-41.[5],.[J].,2001,23(8):4-6.[6],.[J].,2006(3):48-49.[7],,,.[J].,2007,28(1):17-19.[8],RTM[],(3)38:..:199:1-17../J.2002:-4.01