Wadanne ne manyan abubuwan da suka shafi zafi-tsoma?
Akwai nau'ikan riguna masu zafi da yawa don faranti na ƙarfe da ƙwanƙwasa. Dokokin rarrabuwa a cikin manyan ma'auni-ciki har da Amurka, Jafananci, Turai, da ma'auni na kasar Sin-suna kama da juna. Za mu bincika ta amfani da ma'aunin Turai EN 10346: 2015 azaman misali.
Babban abin rufe fuska mai zafi ya faɗi cikin manyan rukunai shida:
- Tutiya mai zafi mai zafi (Z)
- Hot-tsoma zinc-iron gami (ZF)
- Zinc-aluminum mai zafi-tsoma (ZA)
- Hot-tsoma aluminum-zinc (AZ)
- Hot-tsoma aluminum-silicon (AS)
- Hot-tsoma zinc-magnesium (ZM)
Ma'anoni da halaye na nau'ikan sutura masu zafi daban-daban
Ana nutsar da igiyoyin ƙarfe da aka riga aka yi wa magani a cikin narkakken wanka. Narkar da karafa daban-daban a cikin wanka suna samar da sutura daban-daban (sai dai sutturar gami da zinc-iron).
Kwatanta Tsakanin Hot-Dip Galvanizing da Electrogalvanizing
1. Bayanin Tsarin Galvanizing
Galvanizing yana nufin dabarar jiyya ta sama na amfani da murfin zinc zuwa karafa, gami, ko wasu kayan don ƙaya da dalilai na lalata. Hanyoyin da aka fi amfani dasu sune galvanizing mai zafi-tsoma da sanyi galvanizing (electrogalvanizing).
2. Tsarin Galvanizing mai zafi mai zafi
Hanyar farko don galvanizing karfe takardar saman a yau shine galvanizing mai zafi. Hot-tsoma galvanizing (wanda kuma aka sani da zafi-tsoma tutiya shafi ko zafi tsoma galvanization) ne mai tasiri hanya na karfe lalata kariya, da farko amfani da karfe tsarin wurare a fadin daban-daban masana'antu. Ya ƙunshi nutsar da abubuwan da aka cire da tsatsa zuwa cikin tutiya narkakkar a kusan 500°C, ajiye tulin tutiya akan saman ƙarfe don cimma juriyar lalata. Hot-tsoma galvanizing tsari kwarara: Gama samfurin acid wanka → Ruwa kurkura → Aikace-aikace na juyi → bushewa → Rataya ga shafi → Cooling → Chemical magani → Tsaftacewa → Polishing → Hot-tsoma galvanizing cikakken.
3. Tsarin Galvanizing na sanyi-tsoma
Cold galvanizing, wanda kuma aka sani da electrogalvanizing, yana amfani da kayan aikin lantarki. Bayan raguwa da wanke acid, ana sanya kayan aikin bututu a cikin wani bayani mai dauke da gishirin zinc kuma an haɗa su da mummunan tashar kayan lantarki. An ajiye farantin zinc gabanin kayan aiki kuma an haɗa shi zuwa madaidaicin tasha. Lokacin da aka yi amfani da wutar lantarki, motsin da aka jagoranta na halin yanzu daga tabbatacce zuwa mara kyau yana sa zinc ta ajiye akan kayan aikin. Sanyi-galvanized bututu kayan aiki da ake sarrafawa kafin galvanization.
Matsayin fasaha sun bi ASTM B695-2000 (US) da ƙayyadaddun soja C-81562 don galvanization na inji.
Kwatanta Hot-Dip Galvanizing vs. Cold-Dip Galvanizing
Hot-tsoma galvanizing yana ba da mahimmancin juriya na lalata fiye da galvanizing tsoma sanyi (wanda kuma aka sani da electrogalvanizing). Rubutun lantarki yawanci kewayo daga 5 zuwa 15 μm a cikin kauri, yayin da zafin tsoma galvanized coatings gabaɗaya ya wuce 35 μm kuma zai iya kaiwa zuwa 200 μm. Hot- tsoma galvanizing yana ba da mafi girman ɗaukar hoto tare da maɗauri mai yawa wanda ba tare da haɗaɗɗun kwayoyin halitta ba. Electrogalvanizing yana amfani da sutura masu cike da zinc don kare karafa daga lalata. Ana amfani da waɗannan suturar a saman da aka karewa ta hanyar yin amfani da kowace hanya mai laushi, suna samar da nau'in da aka cika da zinc bayan bushewa. Rufin busasshen ya ƙunshi babban abun ciki na zinc (har zuwa 95%). Karfe yana yin plating na zinc a saman sa a cikin yanayin sanyaya, yayin da zafin tsoma galvanizing ya haɗa da shafa bututun ƙarfe da zinc ta hanyar nutsewa mai zafi. Wannan tsari yana haifar da mannewa mai ƙarfi na musamman, yana mai da rufin juriya ga peeling.
Yadda za a bambanta zafi-tsoma galvanizing daga sanyi galvanizing?
1. Gane Gane
Filayen galvanized mai zafi-tsoma suna bayyana ɗan ƙanƙara gabaɗaya, suna nuna alamun ruwa, drips, da nodules da aka haifar da tsari-musamman ana iya gani a ƙarshen aikin. Gabaɗaya bayyanar ita ce fari-fari.
Fuskokin Electrogalvanized (sanyi-galvanized) sun fi santsi, da farko launin rawaya-kore, ko da yake iridescent, bluish-fari, ko fari tare da koren sheen na iya bayyana. Wadannan saman gabaɗaya ba su nuna nodules na zinc ko clumping.
2. Bambance ta Tsari
Galvanizing mai zafi-tsoma ya ƙunshi matakai da yawa: ragewa, tsintar acid, nutsar da sinadarai, bushewa, kuma a ƙarshe nutsewa cikin narkakken zinc na wani takamaiman lokaci kafin cirewa. Ana amfani da wannan tsari don abubuwa kamar bututun galvanized mai zafi.
Cold galvanizing, duk da haka, yana da gaske electrogalvanizing. Yana amfani da kayan aiki na electrolytic inda kayan aikin ke jurewa da tsintsawa kafin nutsewa cikin maganin gishirin zinc. An haɗa shi da na'urar lantarki, aikin aikin yana adana Layer zinc ta hanyar jagorancin motsi na yanzu tsakanin ingantattun wayoyin lantarki da mara kyau.
Lokacin aikawa: Oktoba-01-2025
