Ngaba i-aluminium railing iya kuba nomhlwa xa imanzi?

Ihlelwe ngu: Viewmate All Glass Railing

I-aluminium railing ayidli ngokugqwala xa imanzi. Nasi isizathu:

Umhlwa, owaziwa ngokwesayensi ngokuba yi-iron oxide, wenziwa xa i-iron okanye ii-alloys ezine-iron (ezifana nentsimbi) zidibana ne-oksijini namanzi. Nangona kunjalo, i-aluminium yintsimbi engenasinyithi engena-iron. Endaweni yoko, xa i-aluminium ivezwa kumswakama kunye ne-oksijini, yenza umaleko omncinci, okhuselayo we-aluminium oxide (Al₂O₃) kumphezulu wayo. Lo maleko we-oxide awusebenzi, awumelani nokugqwala, kwaye uyazilungisa—ukuba ukrwelwe, ukhawuleza ubuye umva ukuze ukhusele i-aluminium engaphantsi ekonakaleni okungakumbi.Ngexesha lokwenziwa, ii-aluminium railings zihlala zigqitywa nge-powder coating ekhuselayo efakwe kwiindawo zazo zangaphandle. Olu layer lwe-powder olubhakiweyo longeza umqobo owongezelelweyo nxamnye nokufuma, imisebe ye-UV, kunye nokuguguleka kwemihla ngemihla, nto leyo ephucula ngakumbi ukusebenza kwe-railing okumelana nomhlwa ngelixa inika isiphelo esigudileyo nesilinganayo. Ngenxa yolu daka, ii-aluminium railings azimelani nje kuphela nomhlwa kodwa kulula kakhulu ukuzicoca—uninzi lokungcola, uthuli, kunye namabala zinokusulwa nje ngelaphu elithambileyo kunye nesepha ethambileyo, ngaphandle kokukhuhla kakhulu okanye izinto zokucoca ezikhethekileyo.

Nangona i-aluminium ngokwayo ingagqwali, isenokwahlulwa zezinye iintlobo zokugqwala kwiimeko ezithile. Umzekelo:

• Ukugqwala kweGalvanic: Ukuba i-aluminium railing idibana ngqo neentsimbi ezahlukeneyo (umz., izibophelelo zentsimbi) kwindawo emanzi, kunokwenzeka ukuba kubekho i-electrochemical reaction, ekhawulezisa ukugqwala kwe-aluminium. Ukuthintela oku, sebenzisa izibophelelo ezihambelanayo (umz., i-aluminium okanye intsimbi engatyiwayo) kunye nezinto zokukhusela phakathi kweentsimbi.
• Ukugqwala kwe-pitting: Kwiindawo ezine-asidi eninzi okanye i-alkaline (umz., kufutshane namanzi anetyuwa okanye iikhemikhali zoshishino), ukugqwala kwendawo ethile (imingxuma) kunokwenzeka ukuba umaleko we-oxide okhuselayo awukhuselekanga. Nangona kunjalo, oku akwenzeki rhoqo kwiindawo eziqhelekileyo zangaphandle okanye zangaphakathi.

Ngamafutshane, i-aluminium railing ayimelani nomhlwa ngenxa yokwakheka kwayo okungeyontsimbi kunye nomaleko we-oxide okhuselayo. Ukufakwa kunye nokugcinwa ngokufanelekileyo (umz., ukuphepha ukudibana neentsimbi ezingahambelaniyo, ukucoca ngeesepha ezithambileyo) kuya kuqinisekisa ukuqina kwexesha elide nokuba kufakwe umswakama.