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Hot tsoma galvanizing, kuma aka sani da zafi tsoma galvanizing da zafi tsoma galvanizing, ne mai tasiri hanya na karfe lalata rigakafin, yafi amfani ga karfe Tsarin da wurare a daban-daban masana'antu.Shi ne a nutsar da derusted karfe sassa a narkakkar zinc a game da 500 ℃ don manne da wani tutiya Layer zuwa saman na karfe aka gyara, game da shi cimma manufar lalata rigakafi.Hot tsoma galvanizing tsari kwarara: ƙãre samfurin pickling - ruwa wanka - ƙara karin plating bayani - bushewa - rataye plating - sanyaya - medicating - tsaftacewa - polishing - kammala zafi tsoma galvanizing 1. Hot tsoma galvanizing an ɓullo da daga mazan zafi tsoma galvanizing hanya. , kuma yana da tarihi na fiye da shekaru 170 tun lokacin da Faransa ta yi amfani da ƙwanƙwasa mai zafi ga masana'antu a shekara ta 1836. A cikin shekaru talatin da suka gabata, tare da saurin bunƙasa na ƙera karfe mai sanyi, masana'antar zafi mai zafi ta haɓaka a kan babban sikeli.
Hot tsoma galvanizing, wanda kuma aka sani da zafi tsoma galvanizing, hanya ce don samun rufin ƙarfe akan abubuwan ƙarfe ta hanyar nutsar da su a cikin zurfafan zinc.Tare da saurin haɓaka ƙarfin wutar lantarki mai ƙarfi, sufuri, da sadarwa, abubuwan da ake buƙata don kariyar sassan ƙarfe suna ƙaruwa sosai, kuma buƙatar galvanizing mai zafi mai zafi yana ƙaruwa.

Ayyukan kariya
Gabaɗaya, kauri daga cikin galvanized Layer shine 5 ~ 15 μm.Tsarin galvanized mai zafi-tsoma gabaɗaya yana a 35 μ Sama m, har zuwa 200 μm. Hot tsoma galvanizing yana da kyakkyawan ikon rufewa, sutura mai yawa, kuma babu haɗaɗɗun kwayoyin halitta.Sanannen abu ne cewa hanyoyin da zinc ke jure lalatawar yanayi sun haɗa da kariya ta injina da kariya ta lantarki.Karkashin yanayin lalatawar yanayi, saman tulin zinc yana da ZnO, Zn (OH) 2, da kuma fina-finai na kariya na zinc carbonate na asali, wanda har zuwa wani lokaci yana rage lalata zinc.Idan wannan fim mai kariya (wanda aka fi sani da tsatsa) ya lalace, zai samar da sabon Layer na fim.Lokacin da Layer zinc ya lalace sosai kuma yana yin haɗari ga ma'aunin ƙarfe, zinc yana ba da kariya ta lantarki ga ma'aunin.Matsakaicin yuwuwar zinc shine -0.76V, kuma madaidaicin yuwuwar ƙarfe shine -0.44V.Lokacin da zinc da baƙin ƙarfe suka zama micro baturi, zinc yana narkar da shi azaman anode, kuma baƙin ƙarfe yana kiyaye shi azaman cathode.Babu shakka, juriya na lalata yanayin yanayi na zafi tsoma galvanizing a kan tushe karfe ƙarfe ya fi na electrogalvanizing.
Tutiya shafi samuwar tsari
A samuwar tsari na zafi tsoma galvanized Layer ne wani tsari na forming baƙin ƙarfe zinc gami tsakanin baƙin ƙarfe substrate da kuma tsarki tutiya Layer waje na Z. The baƙin ƙarfe zinc gami Layer aka kafa a saman da workpiece a lokacin zafi tsoma plating, wanda. yana ba da damar haɗin gwiwa mai kyau tsakanin ƙarfe da maɗaurin zinc mai tsabta.A tsari za a iya kawai bayyana kamar haka: Lokacin da baƙin ƙarfe workpiece ne immersed a cikin narkakkar tutiya ruwa, tutiya da tutiya aka farko kafa a kan dubawa α Iron (jiki core) m narke.Wannan kristal ne da aka samu ta hanyar narkar da zarra na zinc a cikin ingantaccen yanayin ƙarfe na tushe.Abubuwan zarra guda biyu na karfe suna hade, kuma jan hankali tsakanin atom din kadan ne.Saboda haka, lokacin da zinc ya kai jikewa a cikin narke mai ƙarfi, atom ɗin farko guda biyu na zinc da baƙin ƙarfe suna yaduwa da juna, kuma atom ɗin zinc ɗin sun bazu cikin (ko kutsawa cikin) matrix baƙin ƙarfe suna ƙaura a cikin matrix ɗin, a hankali suna samar da gami da ƙarfe. , yayin da baƙin ƙarfe da zinc tarwatsa a cikin narkakkar tutiya ruwa ta high-ƙarfe karfe samar da intermetallic fili FeZn13, wanda nutse cikin kasan na zafi galvanizing tukunya, forming zinc slag.Lokacin da aka cire kayan aikin daga maganin dipping na zinc, an samar da zaren tutiya mai tsafta akan saman, wanda shine crystal hexagonal.Abin da ke cikin ƙarfen sa bai fi 0.003% ba.
Bambance-bambancen fasaha
Juriya na lalata na galvanizing mai zafi ya fi girma fiye da na galvanizing sanyi (wanda kuma aka sani da galvanization).Hot galvanizing ba zai yi tsatsa a cikin 'yan shekaru, yayin da sanyi galvanizing zai yi tsatsa a cikin watanni uku.
Ana amfani da tsarin electrogalvanizing don kare karafa daga lalata."Za a sami kyakkyawan shingen kariya na ƙarfe a gefuna da saman samfurin, wanda ke ƙara kyakkyawan sashi ga aiwatarwa.A halin yanzu, manyan masana'antu suna daɗaɗɗen buƙatun samfuran samfuran da fasaha, don haka ya zama dole a sake fasalin fasahar a wannan matakin."