Ƙa'idar Passivation na masu ɗaurewa da Nassosi masu kyau na Maganin Antirust

Bayan an yi maganin ƙarfe ta hanyar oxidizing matsakaici, ƙimar lalata na ƙarfe ya yi ƙasa da na ainihin ƙarfen da ba a kula da shi ba, wanda ake kira passivation na ƙarfe.

Gabaɗaya magana, passivation a zahiri juya mai aiki karfe surface zuwa wani inert surface ta hanyar sinadaran dauki na passivation bayani, ta yadda ya kamata a hana waje barna abubuwa daga reacting tare da karfe surface da kuma cimma manufar tsawanta karfe tsatsa lokaci. (Shi ya sa samfurin yana da sauƙin tsatsa kafin wucewa, amma ba bayan wucewa ba. Misali, baƙin ƙarfe zai narke nan da nan a cikin nitric acid, amma abin da ya faru na narkewa a cikin nitric acid mai daɗaɗɗen kusan gaba ɗaya yana tsayawa; amma ana iya amfani da kwantena na aluminium don adana abubuwan da ke tattare da nitric acid.

Ka'idar wucewa

Ka'idar passivation za a iya bayyana ta hanyar ka'idar fim na bakin ciki, wato, ana la'akari da cewa passivation ne saboda hulɗar da ke tsakanin karfe da oxidizing matsakaici, wanda zai samar da wani bakin ciki sosai (kimanin 1nm), mai yawa, mai rufe fuska mai kyau. akan saman karfe, wanda za'a iya haɗa shi da ƙarfi zuwa saman ƙarfe. Wannan fim ɗin yana kasancewa a matsayin lokaci mai zaman kansa, yawanci fili na oxygen da ƙarfe.

Yana iya gaba daya raba karfe daga m matsakaici, da kuma hana karfe daga kai tsaye tuntubar tare da latsa matsakaici, sabõda haka, karfe m tsaya dissolving da Forms m jihar cimma manufar hana lalata da tsatsa.

Halaye da fa'idodin passivation:

Maganin wucewar bakin karfe ba ya canza girman, launi da bayyanar sukurori; Babu fim ɗin mai da aka haɗe, kuma juriya na lalata ya fi kyau kuma ya fi kwanciyar hankali (maganin wuce gona da iri shine mafi kyawun zaɓi don maye gurbin maganin rigakafin lalata na gargajiya don jiƙa mai mai tsatsa). Babu buƙatar kayan aiki na musamman da yanayin aiki mai tsauri, kawai ana buƙatar kwantena filastik ko tankuna na bakin karfe, kuma farashin yana da ƙasa (2/3 ƙasa da na sarrafa fitarwa); Aikin yana da sauƙi, wanda ya dace da bukatun kamfanoni, kuma yana tabbatar da cewa kowa zai iya yin shi, kowa zai iya yin shi, kuma yana iya yin shi a kowane lokaci. Kawai nutsar da sukurori a cikin Senyuan iri bakin karfe maganin wucewar wucewar minti 30 a zazzabi na dakin.

Abin sha'awa:

Bayan da dunƙule ne passivated, wani sosai m passivation fim tare da kyau ɗaukar hoto a kan saman dunƙule, wanda zai iya sa dunƙule mafi juriya lalata, har zuwa fiye da 500 hours na gishiri fesa gwajin.

Tsarin wucewa na dunƙulewa:

Da farko sai a sauke sukullun-kurkure su da ruwa mai gudana- kunna su-kurkure su da ruwa mai gudana-kurkure su (fiye da mintuna 30)-kurkure su da ruwa mai gudana-kurkure su da ruwa mai ƙarfi-bushe su sannan a kwashe su.