Kuyoze kube nini i-aluminium i-oxidize futhi igle ngemva kokusetshenziswa?
Ingxenye eyinhloko ye-aluminium i-aluminium kanye nenani elincane lezingxenye ze-alloy.Abanye abantu bacabanga ukuthi i-aluminium akulula ukuyikhipha nge-oxidize ngoba kube noshintsho oluncane embala.Eqinisweni, i-aluminium iyinsimbi esebenza kakhulu, kulula ukuyikhipha kune-iron.Isizathu sokuthi kungani ingabonakali ingoba i-aluminium oxide eyakhiwe ngemva kwe-oxidation ayinambala futhi isobala.Futhi lolu ungqimba lwefilimu ye-oxide luhlukanisa i-aluminium yangaphakathi kanye nokuxhumana komoya, ngakho-ke ngeke iqhubeke i-oxidize, futhi ngaleyo ndlela ivikele i-aluminium substrate.Ngakho i-aluminium iqinile ngisho nangaphandle kokwelashwa okungaphezulu.
Kodwa ifilimu ye-oxide ayinabungozi, i-aluminium oxide iyasebenza ku-asidi ne-alkali, endaweni enomoya obolayo, ifilimu ye-oxide ibhujiswa kalula, okuholela ekugqwaleni kwe-aluminium substrate, umonakalo.Uma kusetshenziswa ngaphandle, ukukhanya kwelanga, namanzi emvula ane-asidi kuzosheshisa ukugqwala kwe-aluminium.Ngakho-ke ukuthi iphrofayili ye-aluminium izokhipha i-oxidize futhi igle isikhathi esingakanani uma isetshenziswa futhi kuncike endaweni kanye nokuphathwa kwayo kwendawo.Ukwelashwa okungaphezulu kwamaphrofayili e-aluminium kuhlanganisa i-anodic oxidation, i-electrophoresis, ukufafaza, i-electroplating, njll. I-anodic oxidation iyindlela ye-electrochemical eyakha ifilimu ye-oxide yokufakelwa endaweni yamaphrofayili e-aluminium, ejiyile kakhulu kunefilimu ye-oxide eyakhiwe ngokwemvelo futhi iyifilimu. ukumelana nokugqwala ngisho nasendaweni engaphandle enokhahlo, futhi impilo yesevisi elondolozayo ingafinyelela eminyakeni engu-25.
Isikhathi sokuthumela: Aug-25-2022
