Galvanizing yog hais txog kev kho saum npoo ntawm txheej zinc ntawm cov hlau lossis lwm yam ntaub ntawv, feem ntau yog siv rau kev tiv thaiv xeb xeb. Cov txheej txheem tam sim no feem ntau yog kub dip galvanizing thiab txias galvanizing uas tseem hu ua electro-galvanizing lossis zinc plating. Vim muaj kev puas tsuaj ntawm corrosion ntawm hlau, tib neeg tau nrhiav txoj hauv kev los txhim kho nws cov tshuaj tiv thaiv corrosion, thiab ib qho ntawm cov txheej txheem siv los tiv thaiv hlau yog hu ua galvanization uas tau tsim dua 280 xyoo. Xyoo 1742, tus kws tshuaj hu ua Melouin pom tias zinc txheej tuaj yeem siv rau hlau los ntawm dipping rau hauv zinc molten. Qhov kev tshawb pom no ua rau muaj kev tshawb fawb thoob plaws hauv zej zog kev tshawb fawb thiab tau tsim lub hauv paus ruaj khov rau galvanizing. Nyob rau hauv 1780, ib tug Italian physicist, Luigi Galvani, pom hais tias kev sib cuag ntawm ob dissimilar hlau ua rau lub ndlwg ntawm ib tug hluav taws xob tam sim no. Sij hawm dhau mus, kev nkag siab ntawm galvanizing tau zoo tuaj, thiab los ntawm 1850, 10,000 tons ntawm zinc tau siv txhua xyoo los ntawm British galvanizing kev lag luam rau kev tiv thaiv hlau. Qhov no yog qhov yug ntawm galvaniztion kev lag luam uas txuas ntxiv mus txog niaj hnub no.
Kub dip galvanizing, tseem hu ua kub dip galvanizing, melts zinc ingot ntawm qhov kub thiab txias, muab qee cov ntaub ntawv pabcuam, thiab tom qab ntawd muab cov khoom siv hlau tso rau hauv ib da dej galvanizing los txuas ib txheej zinc rau cov neeg siv hlau. Qhov kom zoo dua ntawm kub dip galvanizing yog qhov muaj zog tiv thaiv corrosion, thiab adhesion thiab hardness ntawm galvanized txheej yog zoo dua.
Electro galvanizing txhais tau hais tias zinc ntsev tov yog electrolyzed rau txheej plated. Feem ntau hais lus, nws tsis tas yuav tsum tau ua kom sov, thiab cov nyiaj zinc tsawg heev, yog li nws yooj yim rau corroded thaum ntsib qhov chaw ntub dej. Electro galvanizing siv cov khoom siv electrolytic los muab cov khoom ua haujlwm rau hauv cov tshuaj uas muaj zinc ntsev tom qab degreasing thiab pickling, thiab txuas cov ncej tsis zoo ntawm cov khoom siv electrolytic; Muab ib daim ntawv zinc rau ntawm sab nraud ntawm qhov chaw ua haujlwm txuas mus rau tus ncej zoo ntawm cov khoom siv electrolysis, tig rau lub hwj chim, thiab siv tam sim no txav los ntawm tus ncej zoo mus rau qhov tsis zoo ncej directionally, ces ib txheej zinc yuav muab tso rau ntawm lub workpiece.
Qhov sib txawv ntawm cov khoom tiav galvanized: qhov saum npoo ntawm Kub Galvanizing tsis zoo thiab ci li electro galvanizing, tab sis lub thickness ntawm zinc txheej feem ntau yog ob peb zaug siab dua. Kev tiv thaiv corrosion kuj yog ob peb zaug zoo dua li electro galvanizing.Cov txheej ntawm kub dip galvanizing yog thicker, feem ntau 45-100 microns. Nws tuaj yeem raug coated nrog cov zinc txheej tuab raws li cov neeg siv' kev xav tau, thiab txheej txheej muaj peev xwm tiv thaiv corrosion zoo dua. Nws yog qhov tsim nyog rau kev tiv thaiv xeb ntev ntev ntawm cov hlau thiab hlau qhov chaw uas siv rau sab nraum zoov, xws li tunnel cable brackets,cage bracket rau ntses ua liaj ua teb, dock hardware brackets, ncej txhawb, telecom brackets, fasteners thiab lwm yam khoom siv uas cuam tshuam nrog kev tsim kho vaj tse uas xav tau kev ua haujlwm zoo los tiv thaiv corrosion. Piv txwv li, cov kav dej ua ntej hlau kais dej kuj tau kub galvanized. Electro galvanizing, nto ntawm lub workpiece yog du thiab tiaj tus, thiab nws cov txheej thickness feem ntau yog nyob nruab nrab ntawm 5-30 microns, yog li qhov kev tiv thaiv corrosion tsis zoo li HDG. Feem ntau, qhov chaw xws li chassis, vaj huam sib luag, me me fasteners, brackets thiab me me stamping qhov feem ntau yogelectrogalvanized.
