Cathodic kuchengetedza tekinoroji imhando ye electrochemical kuchengetedza tekinoroji, iyo inoshandisa yekunze ikozvino kune pamusoro peiyo yakaora simbi chimiro. Chimiro chakadzivirirwa chinova cathode, nokudaro kudzvinyirira kutama kwerekitironi kunoitika panguva yekuora kwesimbi uye kudzivirira kana kuderedza kuitika kwekuora.

Cathodic dziviriro tekinoroji inogona kukamurwa kuita chibayiro anode cathodic dziviriro uye yakafadza yazvino kuchengetedzwa kwecathodic. Iyi tekinoroji yakakura uye inoshandiswa zvakanyanya kudzora ngura yezvivakwa zvesimbi semapaipi esimbi, pombi dzemvura, tambo, madoko, ngarava, pasi pematangi, zvinotonhorera, nezvimwewo muvhu, mvura yegungwa, mvura yakachena, uye makemikari media.

Sacrificial anode cathodic protection ndiyo nzira yekubatanidza simbi mbiri nemabasa akasiyana uye kuiisa mu electrolyte imwechete. Simbi inonyanyoshanda inorasa maerekitironi yoita ngura, nepo simbi isingashande inowana dziviriro yemaerekitironi. Nekuda kwekuora kwesimbi dzinoshanda zvakanyanya panguva iyi, inonzi secrificial anode cathodic protection.

Kunze kwezvino kuchengetedzwa kwecathodic kunowanikwa kuburikidza nekushandura kugona kwenzvimbo yakatenderedza kuburikidza nekunze kwesimba sosi, kuitira kuti mukana wemidziyo inochengetedzwa inoramba yakaderera pane iyo yakapoteredza nharaunda, nokudaro ichiva cathode yenzvimbo yese. Nenzira iyi, midziyo inofanira kuchengetedzwa haizoparari nekuda kwekurasikirwa kwemaerekitironi.

Kushanda musimboti

Shandisa mhangura uye aruminiyamu alloys seanodes uye yakachengetedzwa michina sisitimu semacathodes. Iwo ayoni emhangura anowanikwa kubva ku electrolyzing copper anode ane muchetura uye anoumba nharaunda ine muchetura kana yakasanganiswa nemvura yegungwa. Iyo electrolytic aluminium anode inogadzira Al3+, iyo inoumba Al (OH) 3 ine OH - inogadzirwa necathode. Iyi mhando ye l (OH) 3 inoputira maion emhangura yakasunungurwa uye inoyerera kuburikidza nehurongwa hwakachengetedzwa nemvura yegungwa. Iyo ine yakakwirira adsorption kugona uye inogona kupararira munzvimbo dzine inononoka kuyerera kwemvura yegungwa uko zvisikwa zvemugungwa zvinogona kugara, zvichitadzisa kukura kwavo. Kana iyo copper aruminiyamu anode system yaiswa electrolyze mumvura yegungwa, gobvu re calcium ne magnesium inoumbwa mukati mepamusoro pepombi yesimbi se cathode, uye aluminium hydroxide colloid inogadzirwa ne electrolysis inoyerera nemvura yegungwa, ichiita firimu rinodzivirira pamadziro emukati epombi. Iyo calcium magnesium coating uye aluminium hydroxide colloidal firimu inovharira kupararira kweokisijeni, inowedzera kufungidzira polarization, uye inonoke chiyero chekuora, chinogona kuzadzisa chinangwa cheanti fouling uye anti-corrosion.