304 da 316 duka lambobin bakin karfe ne.A zahiri, ba su bambanta ba.Dukansu bakin karfe ne, amma suna cikin nau'ikan daban-daban idan aka raba su.Ingancin bakin karfe 316 ya fi na bakin karfe 304.A bisa 304.316 bakin karfeya haɗa da molybdenum na ƙarfe, wanda zai iya ƙara ƙarfafa tsarin kwayoyin halitta na bakin karfe.Ka sanya shi ya fi jure lalacewa da anti-oxidation, kuma a lokaci guda, juriya na lalata yana ƙaruwa sosai.
Kwatancen aiki na 304L da316L Bakin Karfe Farantin Goga
Juriya na lalata bakin karfe ya fi juriyar tabonsa daraja sosai.A matsayin alloy, farkon abun da ke ciki na bakin karfe shine ƙarfe, amma saboda ƙari na wasu abubuwa, zai iya cimma yawancin kayan aikin da ake so.Chromium shine madaidaicin kashi a cikin bakin karfe, aƙalla 10.5% na abun da ke ciki.Sauran abubuwan da aka haɗa sun haɗa da nickel, titanium, jan karfe, nitrogen da selenium.
Bambanci tsakanin 304L da 316L Brush Bakin Karfe Plate shine kasancewar chromium, 316L bakin karfe mai gogewa yana da mafi kyawun juriya na lalata, musamman a cikin matsakaicin yanayi tare da babban salinity.Don aikace-aikace tare da samfuran bakin karfe na waje, bakin karfe shine madaidaicin abu mai jure lalata don ɗaukar dogon lokaci a waje.
na halitta lalata juriya
Abubuwan da ke ciki daban-daban na chromium da sauran abubuwa na iya nuna matakan juriya na lalata daban-daban.Mafi yawan nau'ikan nau'ikan bakin karfe guda biyu sune 304 da 316. Lalata abu ne na halitta, kamar dai yadda ƙarfe ke amsawa ta halitta tare da kewaye.A gaskiya ma, ƙananan abubuwa kaɗan ne zasu iya faruwa a cikin tsarkakkiyar tsari - zinariya, azurfa, jan karfe, da platinum kaɗan ne kaɗan.
Chromium oxide yana samar da fim ɗin kariya mai tsari
Tsatsa shine tsarin da kwayoyin ƙarfe ke haɗuwa tare da oxygen a cikin kwayoyin ruwa, kuma sakamakon shine ja tabo wanda ke daɗa yin muni - yana lalata yawancin kayan.Daga cikin waɗannan, ƙarfe da ƙarfe na carbon sun fi sauƙi ga wannan lalata.
Bakin karfe yana da ikon da zai iya lalata saman, ta yaya wannan ya faru?Chromium a duk bakin karafa yana amsawa da sauri cikin iskar oxygen, kamar baƙin ƙarfe.Bambance-bambancen shine kawai sirin chromium na bakin ciki ne zai zama oxidized (yawanci kadan kadan a cikin kauri).Abin mamaki, wannan siriri na kariya yana da dorewa sosai.
304L bakin karfe goga yana da kyakkyawan bayyanar da ƙarancin kulawa.304L bakin karfe goga ba shi da saurin tsatsa, don haka galibi ana amfani dashi a cikin kayan dafa abinci da aikace-aikacen abinci.Amma yana da saukin kamuwa da chlorides (yawanci a cikin yanayin salinity mai girma).Chloride yana haifar da wani nau'in yanki na lalata da ake kira "lalacewar tabo" wanda ya shimfiɗa cikin tsarin ciki.
Bakin karfe 304 shine bakin karfe da aka fi amfani dashi a duniya.Ya ƙunshi 16% -24% chromium da har zuwa 35% nickel - da ƙananan matakan carbon da manganese.Mafi yawan nau'in bakin karfe 304 shine 18-8, ko 18/8 bakin karfe, wanda ke nufin 18% chromium da 8% nickel.
Bakin karfe 316 kuma bakin karfe ne da ake amfani da shi sosai.Kayayyakinsa na zahiri da na inji sunyi kama da bakin karfe 304.Bambanci shine cewa bakin karfe 316 ya ƙunshi 2-3% molybdenum , wanda ke ƙara ƙarfin ƙarfi da juriya na lalata.Yawanci jerin bakin karfe 300 na iya ƙunsar har zuwa 7% aluminum.
304L da 316Lgoga bakin karfe(kamar yadda sauran 300 jerin bakin karfe) amfani da nickel don kula da ƙarancin zafinsu.
Lokacin aikawa: Satumba-05-2022