Ukupholisha ngamakhemikhali kuyinqubo evamile yokwelapha indawo yensimbi engagqwali.Uma kuqhathaniswa neinqubo yokupholisha electrochemical, inzuzo yayo eyinhloko isemandleni ayo okupholisha izingxenye ezimise okuyinkimbinkimbi ngaphandle kwesidingo somthombo wamandla we-DC nezinsimbi ezikhethekile, okuphumela ekukhiqizeni okuphezulu.Ngokusebenza, ukupholishwa kwamakhemikhali akunikezeli nje kuphela indawo enokuhlanzeka ngokomzimba namakhemikhali kodwa futhi kususa isendlalelo sokulimala komshini kanye nongqimba lwengcindezi endaweni yensimbi engagqwali.
Lokhu kubangela indawo ehlanzekile ngokomshini, enenzuzo ukuvimbela ukugqwala kwendawo, ukuthuthukisa amandla okusebenza, nokwelula impilo yesevisi yezingxenye.
Kodwa-ke, ukusetshenziswa okusebenzayo kubangela izinselele ngenxa yezinhlobonhlobo zensimbi engagqwali.Amabanga ahlukene ensimbi engagqwali abonisa amaphethini awo ahlukile okuthuthukisa ukugqwala, okwenza kungenzeki ukusebenzisa isisombululo esisodwa sokupholisha amakhemikhali.Ngenxa yalokho, kunezinhlobo eziningi zedatha yezixazululo zokupholisha amakhemikhali ensimbi engagqwali.
Insimbi engagqwali electrolytic polishingkuhlanganisa ukumisa imikhiqizo yensimbi engagqwali ku-anode nokuyifaka ngaphansi kwe-anodic electrolysis kusixazululo sokupholisha i-electrolytic.Ukupholisha nge-electrolytic kuyinqubo eyingqayizivele ye-anodic lapho indawo yomkhiqizo wensimbi engagqwali idlula izinqubo ezimbili ezingqubuzanayo ngesikhathi esisodwa: ukwakheka okuqhubekayo nokuhlakazeka kwefilimu ye-metal surface oxide.Kodwa-ke, izimo zefilimu yamakhemikhali eyakhiwe endaweni eyi-convex kanye ne-concave yomkhiqizo wensimbi engagqwali ukuze ingene endaweni engashintshiwe ihlukile.Ukugcwala kosawoti wensimbi endaweni ye-anode kuyanda ngokuqhubekayo ngenxa yokuncibilika kwe-anodic, kwakheka ifilimu eliwugqinsi, elimelana kakhulu nobuso bomkhiqizo wensimbi engagqwali.
Ugqinsi lwefilimu ewugqinsi endaweni eyi-micro-convex kanye ne-concave yomkhiqizo iyahlukahluka, futhi ukusatshalaliswa kwe-anode micro-surface current ayilingani.Ezindaweni ezinokuminyana okuphezulu kwamanje, ukuhlakazeka kwenzeka ngokushesha, kubeka phambili ukuqedwa kwamabhulokhi noma amabhulokhi ama-micro-convex endaweni yomkhiqizo ukuze kufezwe ukushelela.Ngokuphambene, izindawo ezinokuminyana okuphansi kwamanje zibonisa ukuncibilika kancane.Ngenxa yokusatshalaliswa kwabantu okuhlukile kwamanje, indawo yomkhiqizo iqhubeka yakha ifilimu futhi incibilika ngamanani ahlukene.Ngesikhathi esifanayo, izinqubo ezimbili eziphikisanayo zenzeka endaweni ye-anode: ukwakheka kwefilimu nokuqedwa, kanye nesizukulwane esiqhubekayo nokuqedwa kwefilimu ye-passivation.Lokhu kubangela ukubukeka okubushelelezi nokupholisheke kakhulu ebusweni bemikhiqizo yensimbi engagqwali, kufinyelele umgomo wokupholisha nokucwengisiswa kwensimbi engagqwali.
Isikhathi sokuthumela: Nov-27-2023