Ukadaulo wachitetezo cha Cathodic ndi mtundu waukadaulo wachitetezo cha electrochemical, womwe umagwiritsa ntchito mphamvu yakunja pamwamba pa chitsulo chambiri. Mapangidwe otetezedwa amakhala cathode, potero kupondereza kusamuka kwa ma elekitironi komwe kumachitika pa dzimbiri lachitsulo ndikupewa kapena kuchepetsa kuchitika kwa dzimbiri.

Ukadaulo wachitetezo cha Cathodic ukhoza kugawidwa kukhala chitetezo cha anode cathodic ndi chidwi chachitetezo chamakono cha cathodic. Ukadaulowu ndi wokhwima ndipo umagwiritsidwa ntchito kwambiri pakuwongolera dzimbiri zazitsulo monga mapaipi achitsulo, mapampu amadzi, zingwe, madoko, zombo, pansi pa thanki, zoziziritsa kukhosi, ndi zina zambiri m'nthaka, m'madzi a m'nyanja, m'madzi amchere, ndi media media.

Chitetezo cha anode cathodic ndi njira yolumikizira zitsulo ziwiri ndi ntchito zosiyanasiyana ndikuziyika mu electrolyte yomweyo. Chitsulo chogwira ntchito kwambiri chimataya ma elekitironi ndikuwonongeka, pamene chitsulo chosagwira ntchito kwambiri chimalandira chitetezo cha elekitironi. Chifukwa cha kuwonongeka kwa zitsulo zogwira ntchito kwambiri panthawiyi, amatchedwa nsembe ya anode cathodic chitetezo.

Kutetezedwa kwamakono kwa cathodic kwakunja kumatheka mwa kusintha kuthekera kwa chilengedwe chozungulira kupyolera mu gwero lamphamvu lakunja, kotero kuti kuthekera kwa zipangizo zotetezedwa kumakhalabe kochepa kusiyana ndi malo ozungulira, motero kukhala cathode ya chilengedwe chonse. Mwanjira imeneyi, zida zotetezedwa sizingawononge chifukwa cha kutayika kwa ma elekitironi.

Mfundo yogwira ntchito

Gwiritsani ntchito ma alloys amkuwa ndi aluminiyamu ngati anode ndi zida zotetezedwa ngati ma cathode. Ma ion amkuwa omwe amapangidwa kuchokera ku electrolyzing copper anode ndi poizoni ndipo amapanga malo oopsa akasakanikirana ndi madzi a m'nyanja. Electrolytic aluminium anode imapanga Al3 +, yomwe imapanga Al (OH) 3 ndi OH - yopangidwa ndi cathode. Mtundu uwu wa l (OH) 3 umatsekereza ayoni amkuwa otulutsidwa ndikudutsa munjira yotetezedwa ndi madzi a m'nyanja. Imakhala ndi mphamvu yothamanga kwambiri ndipo imatha kufalikira kumadera omwe madzi a m'nyanja sakuyenda pang'onopang'ono kumene zamoyo za m'nyanja zimakhala, zomwe zimalepheretsa kukula kwake. Pamene mkuwa zotayidwa dongosolo anode ndi electrolyzed m'madzi a m'nyanja, wandiweyani wosanjikiza wa kashiamu ndi magnesium aumbike pamwamba pamwamba pa payipi zitsulo monga cathode, ndi zotayidwa hydroxide colloid kwaiye electrolysis umayenda ndi madzi a m'nyanja, kupanga filimu zoteteza pa khoma lamkati la payipi. Kupaka kwa calcium magnesium ndi filimu ya aluminium hydroxide colloidal imalepheretsa kufalikira kwa okosijeni, kuchulukitsa polarization, ndikuchepetsa dzimbiri, zomwe zimatha kukwaniritsa cholinga cha anti-fouling ndi anti-corrosion.