Mafi yawan lalata a cikin kayan ƙarfe suna faruwa ne a cikin yanayin atmospheric, waɗanda ke da abubuwan haifar da oxygen, yanayin zafi, da ƙazanta zazzabi. Gishirin gishiri yana cike da cututtukan ruwa na yau da kullun kuma mai lalata na lalata cututtukan gabbarai na atmospherionic.
Gishirin gishiri ya ƙunshi permenation na ƙwararrun mai gishiri a cikin kayan ƙarfe, yana haifar da halayen ƙwaƙwalwa. Wannan yana haifar da samuwar sel na microgalalicic, tare da "m-metit-mettet metal-mai yiwuwa nem-mai yiwuwar ƙazanta bayani-wutan lantarki" sanyi. Canza Canjin Nighron yana faruwa, da ƙarfe yana disolves kamar yadda aka ba da gulma, watau sabbin abubuwa, watau maganganun lalata lalata. Oin Chloride ions suna taka rawar gani a cikin tsarin lalata gishiri na fesa. Suna da damar shiga cikin shiga ciki, sauƙin haifar da yanayin ƙarfe na ƙarfe da rusa yanayin pastovation na ƙarfe. Bugu da ƙari, ous chloride ions yana da ƙarancin hydration kuzarin, yana sa su sauƙin adsorg zuwa saman ƙarfe, don haka haifar da lalacewar ƙarfe.
Ana rarrabe gwajin gwajin gishiri a cikin manyan nau'ikan guda biyu: Gwajin yanayi na zahiri da kuma hanzarta gwajin muhalli mai amfani. Latterarshe tana amfani da kayan aikin gwaji, da aka sani da tarin gwajin gishiri, wanda ke da ƙarar mai sarrafawa kuma yana haifar da wani yanki mai fesa gishiri da aka haifar da wani yanki mai feshin gishiri. A cikin wannan ɗakin, ana tantance samfurori don juriya ga gishirin gishiri. Idan aka kwatanta da mahalli na zahiri, taro gishiri a cikin gishiri spray yanayin na iya zama sau da yawa ko dubun lokuta mafi girma, yana haɓaka raguwar lalata. Gudanar da gwaje-gwajen gishiri na gishiri akan samfurori yana ba da damar taƙaitaccen gwaji da yawa, tare da haifar da sakamako a hankali sakamakon tasirin bayyanar halaye. Misali, yayin da zai iya ɗaukar shekara guda don tantance lalata yanayin samfurin a waje, yana gudanar da jarabawar guda ɗaya a cikin yanayi mai ƙanshi na musamman a cikin sa'o'i 24 kawai.
Ciki tsakanin gwajin feshin gishiri da kuma ana iya taƙaita lokacin bayyanar muhalli kamar haka:
24 hours na tsaka gishiri mai gina gishiri ≈ 1 shekara na bayyanar dabi'a.
24 hours na acetic acid gishiri na gishiri ≈ shekaru 3 na bayyanar dabi'a.
24 hours na tagulla mai gishiri-hanzari a acetic acid gishiri na gishiri ≈ 8 shekaru na bayyanar dabi'a.
Lokaci: Oct-26-2023