Shin rufin aluminum zai yi tsatsa idan ya jike?

An gyara ta: Viewmate All Gilashin Railing

Gilashin aluminum yawanci baya tsatsa idan ya jike. Ga dalilin:

Tsatsa, wanda aka fi sani da ƙarfe oxide a kimiyyance, tana samuwa ne lokacin da ƙarfe ko ƙarfe masu ɗauke da ƙarfe (kamar ƙarfe) suka yi hulɗa da iskar oxygen da ruwa. Duk da haka, aluminum ƙarfe ne wanda ba ƙarfe ba wanda ba ya ɗauke da ƙarfe. Madadin haka, lokacin da aluminum ya fallasa ga danshi da iskar oxygen, yana samar da siririn Layer mai kariya na aluminum oxide (Al₂O₃) a saman sa. Wannan Layer ɗin oxide ba shi da ƙarfi, yana jure tsatsa, kuma yana gyara kansa - idan an karce shi, yana sake yin sauri don kare aluminum ɗin da ke ƙasa daga ƙarin lalacewa.A lokacin ƙera, kusan koyaushe ana gama shingen aluminum da wani murfin foda mai kariya da aka shafa a saman waje. Wannan Layer ɗin foda da aka gasa yana ƙara ƙarin shinge ga danshi, hasken UV, da lalacewa ta yau da kullun, yana ƙara haɓaka aikin shingen kariya daga tsatsa yayin da yake ba shi santsi da tsari iri ɗaya. Godiya ga wannan shafi, shingen aluminum ba wai kawai suna da juriya ga tsatsa ba amma kuma suna da sauƙin tsaftacewa - yawancin datti, ƙura, da tabo za a iya goge su kawai da zane mai laushi da sabulun wanki mai laushi, ba tare da gogewa mai yawa ko masu tsaftacewa na musamman ba.

Duk da cewa aluminum ɗin kansa ba ya tsatsa, har yanzu yana iya fuskantar wasu nau'ikan tsatsa a wasu yanayi. Misali:

• Tsatsa ta galvanic: Idan shingen aluminum yana hulɗa kai tsaye da ƙarfe daban-daban (misali, maƙallan ƙarfe) a cikin yanayi mai danshi, amsawar lantarki na iya faruwa, wanda ke hanzarta lalata aluminum. Don hana wannan, yi amfani da maƙallan da suka dace (misali, aluminum ko bakin ƙarfe) da kayan rufewa tsakanin ƙarfe.
• Tsatsa mai lalatawa: A cikin muhalli mai yawan acidic ko alkaline (misali, kusa da ruwan gishiri ko sinadarai na masana'antu), tsatsa na iya faruwa idan layin kariya na oxide ya lalace. Duk da haka, wannan ba a saba gani ba a yanayin waje ko na cikin gida.

A taƙaice, shingen aluminum yana da juriya ga tsatsa saboda abubuwan da ba ƙarfe ba da kuma layin kariya na oxide. Shigarwa da kulawa yadda ya kamata (misali, guje wa hulɗa da ƙarfe marasa dacewa, tsaftacewa da sabulun wanki mai laushi) zai tabbatar da dorewa na dogon lokaci koda lokacin da aka fallasa shi ga danshi.