Galvanized
Zinc mai rufi takardar da ke tsawaita rayuwar samfurin kuma yana taimakawa hana lalata.Tare da mafi girma zafi tunani da kuma m bayyanar, shi ne manufa domin gina masana'antu gine-gine, silos, barns, a tsakanin sauran aikace-aikace.taimakawa wajen nuna zafi.
Galvanized takardar
Rectangular corrugated galvanized sheet tare da babban juriya ga lalata, manufa don gina rufin da facades na masana'antu.Tare da tsawon rayuwa mai amfani, yana da tsayayya ga yanayin zafi da kuma
Galvanizing hanya ce ta tattalin arziki da inganci don hana lalata ƙarfe, kuma kaurin galvanized ƙarfe gabaɗaya 0.35 zuwa 3 mm.Turanci "galvanizing" yana nufin cewa galvanized Layer na iya kare farantin karfe ta hanyar lantarki.A shekara ta 1742, Meloman na Faransa (Melomin) ya yi nasarar nazarin hanyar galvanizing mai zafi.A cikin 1836, Sorel na Faransa (Sorel) ya yi amfani da hanyar galvanizing mai zafi don samar da masana'antu.A cikin 1837, HW Grawford ya sami takardar izini don tsoma galvanizing mai zafi ta hanyar juyi.A cikin 1935, Sendzimir na Amurka (T. Sendzimir) ya ba da shawarar yin amfani da hanyar rage iskar gas mai kariya don ci gaba da tsoma bakin karfe na tsiri, wanda aka fi sani da "Hanya Sendzimir".A cikin 1937, an gina layin farko na Sendzimir mai ci gaba da zafi a cikin Amurka.A cikin shekarun 1940 ne kasar Sin ta fara kera zanen gado mai zafi a birnin Anshan, kuma a shekarar 1979, an gina layin farko mai zafi mai zafi don tsiri karfe a birnin Wuhan.
Zafafa tsoma
Akwai nau'i biyu na hanyar galvanizing mai zafi-tsoma da hanyar lantarki.A kauri na zafi-tsoma tutiya Layer ne kullum 60 ~ 300g/m2 (gefe daya), wanda ake amfani da sassan da ke bukatar karfi lalata juriya.Tushen zinc da aka yi amfani da shi na lantarki shine 10-50g/m2 (gefe ɗaya), wanda galibi ana amfani da shi don sassan fenti ko sassa marasa fenti waɗanda ba sa buƙatar juriya mai ƙarfi.Hanyar tsomawa mai zafi ta kasu kashi zuwa hanyar juzu'i da hanyar rage iskar gas mai kariya bisa ga hanyar riga-kafi.Hanyar jujjuyawar ita ce a dakko farantin karfen da aka toshe don cire oxides a saman, sannan a wuce ta cikin tanki mai dauke da ZnCl2 da NH4Cl, sannan a shigar da narkakkar tukin zinc don yin galvanizing.Ana amfani da hanyar rage yawan iskar gas mai kariya don ci gaba da yin galvanizing mai zafi na tsiri.Karfe na tsiri ya fara wucewa ta cikin tanderun zafin wuta mai zafi don ƙone ragowar mai a saman, kuma a lokaci guda, an kafa fim ɗin ƙarfe oxide a saman;Soso Iron.Bayan karfen tsiri wanda aka tsarkake samansa kuma aka kunna shi ya sanyaya zuwa zafin da ya fi na narkakkar zinc dan kadan, sai ya shiga cikin tukunyar zinc a 450-460 ° C, kuma yana amfani da wuka na iska don sarrafa kauri da kauri na zinc.A ƙarshe, yana wucewa tare da maganin chromate don inganta juriya na tsatsa.
Electroplating
Dangane da maganin plating da aka yi amfani da shi, ana iya raba shi zuwa hanyar alkaline da hanyar acid.Maganin plating na alkaline yana da farashi mai yawa, yana gurɓata yanayi, ƙarancin samarwa, da ƙarancin sutura, don haka ba a amfani da shi a zahiri.Babban aka gyara na acid plating bayani ZnSO4 · 7H2O, NH4Cl da Al2 (SO4) 3 · 18H2O, da dai sauransu Tare da tsarki tutiya a matsayin anode da tsiri karfe a matsayin cathode, a karkashin mataki na halin yanzu, da tutiya anode farantin ne narkar da. a cikin Zn2+ a cikin bayani na plating, kuma Zn2+ an rage shi zuwa zinc na ƙarfe a cathode kuma an ajiye shi a saman karfen tsiri.Ana kula da rufin tare da cakudaccen bayani na phosphate da chromate, wanda zai iya inganta yanayin fenti, kuma saman takardar karfe na electro-galvanized yana da haske da santsi, wanda aka fi amfani dashi a cikin masana'antar mota a baya.A cikin 'yan shekarun nan, an fadada iyakokin aikace-aikacen zuwa masana'antar lantarki da sauran fannoni, wanda ya inganta ci gaban masana'antar zane-zane na electro-galvanized.A cikin 1970s, an kuma haɓaka zanen gadon galvanized mai gefe guda.
Lokacin aikawa: Maris-10-2022
