Ukwelashwa nge-oxidation kwezinsimbi ukwakheka kwefilimu ye-oxidation evikelayo ebusweni bezinsimbi ngokusebenzisana nomoya-mpilo noma ama-oxidant, okuvimbela ukugqwala kwensimbi. Izindlela ze-oxidation zifaka phakathi i-thermal oxidation, i-alkaline oxidation, kanye ne-acidic oxidation.
Ukwelashwa nge-oxidation yezinsimbi ukwakheka kwefilimu ye-oxidation evikelayo ebusweni bezinsimbi ngokusebenzisana nomoya-mpilo noma ama-oxidant, okuvimbela ukugqwala kwensimbi. Izindlela ze-oxidation zifaka phakathi i-thermal oxidation, i-alkaline oxidation, i-acidic oxidation (yezinsimbi ezimnyama), i-chemical oxidation, i-anodic oxidation (yezinsimbi ezingezona i-ferrous), njll.
Shisa imikhiqizo yensimbi ku-600 ℃ ~ 650 ℃ usebenzisa indlela ye-thermal oxidation, bese uyiphatha ngomusi oshisayo kanye nama-reducing agents. Enye indlela ukucwilisa imikhiqizo yensimbi kusawoti we-alkali metal oncibilikisiwe cishe ku-300 ℃ ukuze welashwe.
Uma usebenzisa indlela ye-alkaline oxidation, cwilisa izingxenye esixazululweni esilungisiwe bese uzifudumeza ku-135 ℃ kuya ku-155 ℃. Isikhathi sokwelashwa sincike kokuqukethwe kwekhabhoni ezingxenyeni. Ngemva kokwelashwa kwe-oxidation ezingxenyeni zensimbi, zihlanze ngamanzi ensipho aqukethe i-15g/L kuya ku-20g/L ku-60 ℃ kuya ku-80 ℃ imizuzu emi-2 kuya kwemi-5. Bese uzihlanza ngamanzi abandayo nashisayo ngokulandelana bese uziphefumula noma uzomise imizuzu emi-5 kuya kweyi-10 (ekushiseni okungu-80 ℃ kuya ku-90 ℃).
Indlela ye-3 ye-acid oxidation ihilela ukubeka izingxenye esixazululweni se-acidic ukuze zelashwe. Uma kuqhathaniswa nendlela ye-alkaline oxidation, indlela ye-acid oxidation iyonga kakhulu. Ifilimu evikelayo ekhiqizwa ebusweni bensimbi ngemva kokwelashwa inokumelana nokugqwala okuphezulu kanye namandla omshini kunefilimu encane ekhiqizwa ngemva kokwelashwa kwe-alkaline oxidation.
Indlela yokuxilisa ngamakhemikhali ifaneleka kakhulu ekwelapheni ukuxilisa izinsimbi ezingezona i-ferrous njenge-aluminium, ithusi, i-magnesium, kanye nama-alloy azo. Indlela yokucubungula iwukubeka izingxenye esixazululweni esilungisiwe, futhi ngemva kokusabela okuthile kokuxilisa ezingeni lokushisa elithile isikhathi esithile, kwakheka ifilimu evikelayo, engabe isihlanzwa futhi yomiswe.
Indlela ye-anodizing ingenye indlela yoku-oxidation yezinsimbi ezingezona i-ferrous. Kuyinqubo yokusebenzisa izingxenye zensimbi njenge-anode kanye nezindlela ze-electrolytic ukwakha amafilimu e-oxide ebusweni bawo. Lolu hlobo lwefilimu ye-oxide lungasebenza njengefilimu yokudlulisa phakathi kwensimbi nefilimu yokumboza, kanye nokwandisa amandla okubopha phakathi kokumboza nezinsimbi, kunciphise ukungena komswakama, futhi ngaleyo ndlela kwandise impilo yenkonzo yokumboza. Isetshenziswa kabanzi engqimbeni engezansi yokupenda.
Isikhathi sokuthunyelwe: Disemba 16-2024
