Lub cev thiab nuv-nqaj qauv ntawm cov tsheb ciav hlau ceev yog tsim cov ntom ntom nti, muaj lub zog tsis tshua muaj zog, thiab kev ua tau zoo tsawg dua tsawg.Los ntawm kev hloov cov khoom siv hlau ib txwm siv nrog txhuas, qhov hnyav ntawm lub tsheb ciav hlau lub cev tau txo qis, ua rau txo qis kev siv hluav taws xob, txo cov pa phem ib puag ncig, thiab tsim kom muaj kev lag luam thiab kev sib raug zoo.
Txawm li cas los xij, aluminium thiab aluminium alloys muaj cov tshuaj lom neeg zoo heev.Txawm hais tias muaj cov yeeb yaj kiab ntom nti pleev xim thaum muaj cov pa oxygen tsis kam lees paub thaum aluminium alloy yog siv nyob rau hauv cov tsheb ciav hlau ceev.Corrosive water sources, xws li splashing, atmospheric condensation, thiab dej evaporating hauv av thaum nres tsheb, tuaj yeem cuam tshuam cov oxide zaj duab xis.Corrosion nyob rau hauv aluminium alloy siv nyob rau hauv lub cev ntawm high-ceev tsheb ciav hlau mas manifests li niaj hnub corrosion, pitting corrosion, crevice corrosion, thiab kev nyuaj siab corrosion, ua rau nws ib tug complex txheej txheem cuam tshuam los ntawm ob qho tib si ib puag ncig yam thiab alloy khoom.
Muaj ntau txoj hauv kev los tiv thaiv corrosion ntawm aluminium alloy, xws li siv cov tshuaj tiv thaiv corrosion kom zoo cais cov aluminium alloy substrate los ntawm ib puag ncig sab nraud.Cov txheej txheem anticorrosive yog epoxy resin primer, dav siv rau nws cov dej tsis zoo, muaj zog substrate adhesion, thiab compatibility nrog ntau yam txheej.
Txawm li cas los xij, piv rau txoj kev tiv thaiv lub cev xeb, ib txoj hauv kev zoo dua yog kev kho tshuaj passivation.Tom qab passivation kev kho mob ntawm txhuas thiab txhuas alloys, cov khoom thickness thiab mechanical precision nyob twj ywm unaffected, thiab tsis muaj kev hloov nyob rau hauv tsos los yog xim.Txoj kev no yog yooj yim dua thiab muab ib qho kev ruaj khov thiab corrosion-resistant passivation zaj duab xis piv rau cov tsoos anticorrosive txheej.Cov zaj duab xis passivation tsim los ntawm aluminium alloy passivation kev kho mob yog qhov ruaj khov thiab muaj kev tiv thaiv corrosion ntau dua li cov tsoos anticorrosive txheej, nrog cov txiaj ntsig ntxiv ntawm kev kho tus kheej.
Peb cov tshuaj tsis muaj chromium-dawb passivation, KM0425, yog tsim rau passivating txhuas cov ntaub ntawv, aluminium alloys, thiab tuag-cam khwb cia txhuas cov khoom, txhim khu lawv corrosion kuj.Nws yog ib yam khoom tshiab thiab zoo tshaj plaws rau kev siv lub hom phiaj passivation ntawm txhuas cov ntaub ntawv.Formulated nrog cov organic acids, cov ntaub ntawv tsis tshua muaj hauv ntiaj teb, zoo corrosion inhibitors, thiab ib qho me me ntawm high-molecular-weight passivation accelerators, nws yog acid-dawb, tsis muaj tshuaj lom, thiab tsw ntxhiab.Ua raws li cov qauv RoHS ib puag ncig tam sim no, siv cov kev daws teeb meem passivation kom ntseeg tau tias cov txheej txheem passivation tsis ua rau cov xim qub thiab qhov ntev ntawm qhov chaw ua haujlwm thaum txhim kho qhov tsis kam ntawm txhuas cov ntaub ntawv rau ntsev tsuag.
Post lub sij hawm: Jan-25-2024