Ukwelashwa kwe-oxidation yezinsimbi ukwakheka kwefilimu ye-oxide evikelayo ebusweni bezinsimbi ngokusebenzisana komoya-mpilo noma ama-oxidants, okuvimbela ukugqwala kwensimbi. Izindlela ze-oxidation zihlanganisa i-oxidation eshisayo, i-alkaline oxidation, ne-acidic oxidation.
Ukwelashwa kwe-oxidation yezinsimbi ukwakheka kwefilimu ye-oxide evikelayo ebusweni bezinsimbi ngokusebenzisana komoya-mpilo noma ama-oxidants, okuvimbela ukugqwala kwensimbi. Izindlela ze-oxidation zihlanganisa i-oxidation eshisayo, i-alkaline oxidation, i-acidic oxidation (yezinsimbi ezimnyama), i-chemical oxidation, i-anodic oxidation (yezinsimbi ezingenayo insimbi), njll.
Shisisa imikhiqizo yensimbi iye ku-600 ℃~650 ℃ usebenzisa indlela ye-oxidation eshisayo, bese uyiphatha ngesitimu esishisayo nama-ejenti anciphisayo. Enye indlela ukucwilisa imikhiqizo yensimbi kusawoti wensimbi we-alkali oncibilikisiwe ocishe ube ngu-300 ℃ ukuze ulashwe.
Uma usebenzisa indlela ye-alkaline oxidation, cwilisa izingxenye kwisisombululo esilungisiwe bese uzifudumeza ziye ku-135 ℃ kuya ku-155 ℃. Ubude besikhathi sokwelashwa buncike kokuqukethwe kwekhabhoni ezingxenyeni. Ngemuva kokwelashwa kwe-oxidation yezingxenye zensimbi, zihlanza ngamanzi anensipho aqukethe u-15g/L kuya ku-20g/L ku-60 ℃ kuya ku-80 ℃ imizuzu emi-2 kuya kwemi-5. Bese uwahlanza ngamanzi abandayo nashisayo ngokulandelana bese uwaphephetha noma womise imizuzu emi-5 ukuya kweyi-10 (emazingeni okushisa angama-80 ℃ kuye ku-90 ℃).
Indlela ye-3 ye-acid oxidation ibandakanya ukubeka izingxenye kwisixazululo esine-asidi ukuze zelashwe. Uma kuqhathaniswa nendlela ye-alkaline oxidation, indlela ye-acidic oxidation iyonga kakhulu. Ifilimu yokuvikela ekhiqizwa endaweni yensimbi ngemva kokwelashwa inokumelana nokugqwala okuphezulu namandla okusebenza kunefilimu elizacile elikhiqizwa ngemva kokwelashwa kwe-alkaline oxidation.
Indlela ye-chemical oxidation ifaneleka kakhulu ekwelashweni kwe-oxidation kwezinsimbi ezingenayo insimbi njenge-aluminium, ithusi, i-magnesium, nama-alloys azo. Indlela yokucubungula ukubeka izingxenye kwisisombululo esilungisiwe, futhi ngemva kokusabela okuthile kwe-oxidation ekushiseni okuthile isikhathi esithile, kwakhiwa ifilimu yokuzivikela, engase ihlanzwe futhi yomiswe.
Indlela ye-anodizing ingenye indlela ye-oxidation yezinsimbi ezingenayo insimbi. Kuyinqubo yokusebenzisa izingxenye zensimbi njengama-anode nezindlela ze-electrolytic ukwakha amafilimu e-oxide ezindaweni zawo. Lolu hlobo lwefilimu ye-oxide lungasebenza njengefilimu ye-passivation phakathi kwefilimu yensimbi ne-coating, kanye nokwandisa amandla okubopha phakathi kwezingubo nezinsimbi, ukunciphisa ukungena komswakama, futhi ngaleyo ndlela kunwebe impilo yesevisi yezingubo. Isetshenziswa kabanzi engxenyeni engezansi yomdwebo.
Isikhathi sokuthumela: Dec-16-2024
