Galvanizing yana nufin fasahar jiyya ta fuskar bangon waya na sanya Layer na zinc akan saman ƙarfe, gami ko wasu kayan don manufar kyakkyawa da rigakafin tsatsa. Babban hanyar ita ce galvanizing mai zafi tsoma.
Zinc ne mai narkewa a cikin acid da alkali, don haka ake kira amphoteric metal.Zinc canje-canje kadan a bushe iska.In m iska, da zinc surface zai samar da wani m asali tutiya carbonate film.Containing sulfur dioxide, hydrogen sulfide da Marine yanayi, zinc lalata. juriya ba shi da kyau, musamman a cikin babban zafin jiki da zafi mai zafi wanda ke dauke da yanayin acid Organic, murfin zinc yana da sauƙin lalata.Madaidaicin ƙarfin lantarki na zinc shine -0.76v.Domin karfe matrix, tutiya shafi nasa ne na anodic shafi, wanda aka yafi amfani don hana lalata na karfe.Ayyukansa na karewa yana da dangantaka mai kyau tare da kauri na sutura.Kayan kariya da kayan ado na suturar zinc za a iya inganta su sosai ta hanyar wucewa, tabo ko sutura tare da wakili mai kariya.
Ka'idar ita ce ta hanzarta oxidize saman ƙarfe da samfuran ƙarfe don samar da fim ɗin kariya mai yawa oxide. Akwai hanyoyi guda biyu da ake amfani da su na baƙar fata: al'adar alkaline dumama blackening da marigayi blackening a dakin zafin jiki.But sakamakon dakin zafin jiki baƙar fata tsari. A kan ƙananan ƙarfe na carbon ba shi da kyau.Yana da kyau a baƙar fata A3 karfe tare da alkali.Alkalescent blackening ya rabu, sake sake baƙar fata da kuma bambancin baƙar fata guda biyu. Babban abubuwan da ke cikin baƙar fata shine sodium hydroxide da sodium nitrite. Yanayin zafin jiki da ake bukata don blackening shine. m, jere daga game da 135 digiri Celsius zuwa 155 digiri Celsius, kuma za ka samu mai kyau surface, amma yana daukan wani lokaci. A m aiki, da hankali ya kamata a biya zuwa ingancin tsatsa da man cire kafin blackening na workpiece, da kuma Passivation man immersion bayan blackening.The ingancin blackening sau da yawa bambanta da wadannan matakai.Metal "bluing" magani ruwa rungumi dabi'ar alkaline oxidat.ion ko acid oxidation.Hanyar samar da fim din oxide akan saman karfe don hana lalata ana kiransa "bluing". Layer na ciki shine ferrous oxide.
Ana amfani da maɗauran ƙarfi mai ƙarfi gabaɗaya a cikin mahimman abubuwan haɗin gwiwa, batun mafi girman tashin hankali da shear.Mataki na ƙarshe a cikin sarrafa ƙwanƙwasa shine maganin zafi, wanda aka fi sani da quenching, don ƙara ƙarfin kusoshi.Duk da haka, haɓakar hydrogen yana faruwa cikin sauƙi a cikin aiwatarwa. galvanizing kusoshi.Hydrogen embrittlement yawanci halin da jinkiri karaya.This rage ƙarfin high-ƙarfi bolts.Saboda haka, da surface baki samar da reheat jiyya na high-ƙarfi kusoshi ne in mun gwada da barga hadawan abu da iskar shaka film.It ba zai tsatsa a lõkacin da ta. baya cikin hulɗa da abubuwa masu lalata.
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Lokacin aikawa: Satumba-09-2019