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1、机械装配技术标准（Technicalstandardofmechanicalassembly）Assembly1.1.generalregulations1.1.1assemblyshouldunderstandthestructureoftheequipment,assemblytechnicalrequirements.Whenthesurfaceof1.1.2equipmentandpartsiscorroded,rustremovalmustbedone.Themethodofrustremovalisasfol
2、lows.Metalsurfaceroughness(m)commonlyusedrustremovalmethod>50wheel,steelwirebrush,scraper,emerycloth,sandblastingoracidpicklingFrom50to6.3withnonmetalscraper,oilstoneorsize150ontheclothwithmachineoilwipeorpicklingderustingFrom3.2to1.6withafineaggregateorparticles
3、ize150~180ontheclothwithmachineoilwipeorpicklingderustingFrom0.8to0.2by180or240onthesizeofthemechanicaloilmixturewithemeryclothwipe,andthenuseacleanflannelwipemachineoilandfinegrindingpolishingpasteAlkalinecleaningsolutionandemulsifieddegreasingsolutionshouldbeus
4、edforsurfacecleaningandcleaningof1.1.3fittings.Alkalinecleaningsolutionandemulsiondegreasingsolutionshouldbeinaccordancewiththeprovisionsofthisspecification.RatioofalkalinecleaningsolutionApplicablerangeofformula(masspercentage)Sodiumhydroxide0.5~1Sodiumcarbonate
5、5~10Sodiumsilicate3~4WaterMarginStrongalkaline,cancleanmineraloil,vegetableoilandsodiumbasegrease,suitableforgeneralsteelpartsSodiumhydroxide1~2Threesodiumphosphate5~8Sodiumsilicate3~4Waterbaseisstrongalkaline,cancleanmineraloil,vegetableoilandsodiumbasegrease,su
6、itableforgeneralsteelpartsSodiumhydroxide0.5~1.5Sodiumphosphate3~7Sodiumcarbonate2~5Sodiumsilicate1~2ThewatermarginissuitableforcopperandotheralloypartsThreesodiumphosphate5~82~3sodiumdihydrogenphosphateSodiumsilicate5~6Sodiumalkylbenzenephosphate0.5~1Waterbaseis
7、weakalkaline,suitableforsteelandaluminumalloypartsEmulsiondegreasingsolutionratioNamequalityratio(%)keroseneturpentineLauricacidtriethanolamineButylfibrinolyticagent67Twenty-twopointfiveFivepointfourThreepointsixOnepointfive1.1.4cleaningequipmentandfittingssurfac
8、eantirustgrease,shouldadoptthefollowingmethods:Localcleaningofa,equipmentandlargeandmediumcomponentsshallcomplywiththeprovisionsofthiscode.Applicationrequireme
