Passivation yog txheej txheem uas siv los tiv thaiv cov khoom los ntawm corrosion. Hauv qhov xwm txheej ntawm amuaj zog hlau nplaum, cov txheej txheem passivation plays lub luag haujlwm tseem ceeb hauv kev khaws cov hlau nplaum lub zog thiab kev ua haujlwm dhau sijhawm.
Cov hlau nplaum muaj zog, ua los ntawm cov khoom siv xws lineodymiumlos yogsamarium cobalt, yog susceptible corrosion thaum raug dej los yog tej yam kev mob ib puag ncig. Qhov no tuaj yeem ua rau txo qis ntawm cov hlau nplaum lub zog thiab kev ua haujlwm tag nrho. Txhawm rau tiv thaiv qhov no, passivation feem ntau yog siv los tsim kev tiv thaiv kev tiv thaiv ntawm qhov chaw ntawm cov hlau nplaum.
Passivation cuam tshuam nrog kev siv cov txheej nyias nyias, xws li hlau oxide lossis polymer, uas yog siv rau saum npoo ntawm cov hlau nplaum. Cov txheej no ua raws li kev thaiv, tiv thaiv cov hlau nplaum los ntawm corrosion thiab lwm yam kev degradation. Nws pab tswj cov hlau nplaum lub zog thiab kev ua tau zoo, txawm tias muaj kev sib tw ib puag ncig.
Ib qho txiaj ntsig tseem ceeb ntawm passivation yog nws lub peev xwm los txuas ntxiv lub neej ntawm cov hlau nplaum muaj zog. Yog tsis muaj passivation, ib tug hlau nplaum yuav pib degrade thaum lub sij hawm, ua rau ib tug txo nyob rau hauv nws magnetic zog thiab kev ua tau zoo. Los ntawm kev siv cov txheej txheem passivation, cov hlau nplaum tuaj yeem tuav nws lub zog thiab kev ua tau zoo rau lub sijhawm ntev, thaum kawg muab tus nqi ntau dua thiab kev ntseeg siab.
Yog li, cov hlau nplaum muaj zog puas tuaj yeem passivated? Cov lus teb yog yog. Qhov tseeb, passivation yog ib kauj ruam tseem ceeb hauv kev tsim khoom ntawm ntau cov hlau nplaum muaj zog. Yog tsis muaj passivation, cov hlau nplaum no yuav ua rau corrosion thiab yuav tsis muaj peev xwm tswj tau lawv lub zog thiab kev ua haujlwm dhau sijhawm.
Nws yog ib qho tseem ceeb kom nco ntsoov tias passivation tsis yog ib qho txheej txheem ib zaug. Sij hawm dhau mus, txheej txheej passivation yuav pib hnav los yog degrade, tshwj xeeb tshaj yog tias cov hlau nplaum raug rau qhov chaw hnyav. Yog li ntawd, kev saib xyuas tsis tu ncua thiab rov ua dua tuaj yeem tsim nyog los xyuas kom meej tias cov hlau nplaum tseem ua tau zoo tshaj plaws.
Hauv kev xaus, passivation yog txheej txheem tseem ceeb rau kev khaws cia lub zog thiab kev ua haujlwm ntawm cov hlau nplaum muaj zog. Nws pab tiv thaiv cov hlau nplaum los ntawm corrosion thiab lwm yam kev degradation, thaum kawg txuas nws lub neej thiab tswj nws txoj kev ntseeg tau. Rau ib tus neeg ua haujlwm nrog cov hlau nplaum muaj zog, kev nkag siab txog cov txheej txheem ntawm kev ua haujlwm thiab nws qhov tseem ceeb yog qhov tseem ceeb rau kev ua haujlwm txuas ntxiv ntawm cov khoom tseem ceeb no.
Post lub sij hawm: Jan-26-2024