Ingabe i-aluminium railing izogqwala uma imanzi?

Kuhlelwe ngu: Viewmate All Glass Railing

I-aluminium railing ngokuvamile ayigqwali uma imanzi. Nasi isizathu:

Ukugqwala, okwaziwa ngokwesayensi ngokuthi i-iron oxide, kwakheka lapho insimbi noma ama-alloy aqukethe insimbi (njengensimbi) ehlangana nomoya-mpilo namanzi. Nokho, i-aluminium iyinsimbi engenalo i-ferrous engenayo insimbi. Esikhundleni salokho, lapho i-aluminium ivezwa umswakama nomoya-mpilo, yakha ungqimba oluncane noluvikelayo lwe-aluminium oxide (Al₂O₃) ebusweni bayo. Lolu ngqimba lwe-oxide alusebenzi, alukwazi ukugqwala, futhi luyazilungisa—uma luklwejwa, luphinde luvele ngokushesha ukuze luvikele i-aluminium engaphansi ekulimaleni okwengeziwe.Ngesikhathi sokukhiqiza, izinsimbi ze-aluminium cishe zihlala ziqedwa ngendwangu evikelayo yempuphu esetshenziswa ezindaweni zazo zangaphandle. Lolu ngqimba lwempuphu olubhakiwe lunezela isithiyo esengeziwe ekumelaneni nomswakama, imisebe ye-UV, kanye nokugqokwa kwansuku zonke, okuthuthukisa ukusebenza kwensimbi engagqwali ngenkathi luyinika isiphetho esibushelelezi nesilinganayo. Ngenxa yalolu qweqwe, izinsimbi ze-aluminium azigcini nje ngokumelana nokugqwala kodwa futhi kulula kakhulu ukuzihlanza—ukungcola okuningi, uthuli, kanye namabala kungasulwa ngendwangu ethambile kanye nensipho ethambile, ngaphandle kokuhlanzwa kakhulu noma izinto zokuhlanza ezikhethekile.

Nakuba i-aluminium ngokwayo ingagqwali, isengabhekana nezinye izinhlobo zokugqwala ezimweni ezithile. Isibonelo:

• Ukugqwala kwe-galvanic: Uma i-aluminium railing ithintana ngqo nezinsimbi ezingafani (isb., izinamathiseli zensimbi) endaweni emanzi, kungase kwenzeke ukusabela kwe-electrochemical, okusheshisa ukugqwala kwe-aluminium. Ukuze uvimbele lokhu, sebenzisa izinamathiseli ezihambisanayo (isb., i-aluminium noma insimbi engagqwali) kanye nezinto zokuvikela ukuvuvukala phakathi kwezinsimbi.
• Ukugqwala kwe-pitting: Ezindaweni ezine-acidic noma i-alkaline eningi (isb., eduze kwamanzi anosawoti noma amakhemikhali ezimboni), ukugqwala kwendawo (umgodi) kungase kwenzeke uma ungqimba lwe-oxide oluvikelayo lusengozini. Kodwa-ke, lokhu akuvamile kakhulu ezindaweni ezivamile zangaphandle noma zangaphakathi.

Ngamafuphi, i-aluminium railing imelana nokugqwala ngokwemvelo ngenxa yokwakheka kwayo okungeyona insimbi kanye nongqimba lwe-oxide oluvikelayo. Ukufakwa nokugcinwa okufanele (isb., ukugwema ukuthintana nezinsimbi ezingahambisani, ukuhlanza ngensipho encane) kuzoqinisekisa ukuqina kwesikhathi eside ngisho noma kuvezwa umswakama.