Malangizo a pamwamba passivation

Passivation ndi njira yochepetsera kuchuluka kwa dzimbiri kwa chitsulo posintha malo ake kukhala malo omwe sakhudzidwa kwambiri ndi okosijeni. Kuonjezera apo, chodabwitsa cha chitsulo chogwira ntchito kapena aloyi, chomwe ntchito yamankhwala imachepetsedwa kwambiri kukhala chitsulo cholemekezeka, imatchedwanso passivation.
Passivation zitsulo m'chilengedwe zimatheka m'njira ziwiri:
1. Chemical passivation: makamaka pogwiritsa ntchito mankhwala pakati pa zitsulo ndi zowonjezera zowonjezera, kupanga filimu wandiweyani wa oxides kapena mankhwala ena pamwamba pa chitsulo, chomwe chimakwirira chitsulo pamwamba, kupatula chitsulo kuchokera ku yankho, motero kumalepheretsa. zitsulo Kupitirira makutidwe ndi okosijeni ndi kusungunuka.
2. Anodic passivation: yomwe imadziwikanso kuti electrochemical passivation, imakhala ngati anode ya chitsulo kapena pawiri pansi pa zochita za panopa, ku madigiri osiyanasiyana, kutaya mphamvu yosamukira ku yankho. Anodic passivation amayamba ndi anodic polarization wa zitsulo passivation chodabwitsa, ndiko kuti, chitsulo pansi zochita za panopa, elekitirodi angathe kusintha ndi mapangidwe zitsulo oxides kapena mchere pamwamba pa elekitirodi, zinthu izi mwamphamvu yokutidwa mu. zitsulo pamwamba kukhala passivation filimu ndi Amatsogolera zitsulo passivation.
Nthawi zambiri, ngakhale kuphatikizika kwamankhwala ndi anodic passivation onse amasintha chitsulo pamwamba kukhala dziko lomwe silingatengeke ndi okosijeni, njira zawo zopangira ndi maziko ogwiritsira ntchito ndizosiyana. Chemical passivation imapanga filimu yoteteza pamwamba pazitsulo makamaka kudzera muzochita zamakina, pomwe anodic passivation imapanga filimu yodutsa pamwamba pazitsulo kudzera munjira zama electrochemical, zonse zomwe zimapangidwa kuti zichepetse kuwonongeka kwachitsulo.

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