钢铁涂装前处理化学转化膜工艺发展概况

120-180s30-180s45-120s01[1]2/RCH2nSiOR3ORR-SiOR3+H2OSiOH3+3ROHSiOHMeOH(Me)SiOH+MeOH=SiOMe+H2OSi-O-Me700kJSiOHSi-O-Si3pH1H+Fe-2eFe2+2H++2e2[H]2[Si]ZrO2+4[H][Zr]+2H2O[Si][Zr]1H+[Zr]3H2ZrF-6+H+ZrF2-6+2H+H+ZrF2-64ZrF2-6Fe2+KspFe2++ZrF2-6+H2OFeZrF62H2O[Zr]45[1]..199932816-18.OverviewontheDevelopmentofConversionCoatingsonSteelSurfacebeforePaintingYinGuiqin519070GreeElectricAppliancesInc.ofZhuhaiZhuhai519070ChinaAbstractInthispaper,thedevelopmentofconversioncoatingsonsteelsurfacebeforepaintingisintroduced.Bycomparingthedifferenceamongphosphorization,silanizationandceramicconversioncoating,itiseasytoconcludethedevelopmentdirectioninthefuture.KeywordsconversioncoatingphosphorizationsilanizationceramicconversioncoatingTG1A1006-4311201023-0130-011979-130