Vim li cas cov khoom zoo ntawm cov txheej txheem qhuav kub-dip galvanizing zoo dua li cov txheej txheem ntub dej?

Nyob rau hauv "cov txheej txheem qhuav" kub-dip galvanizing, txhuas tuaj yeem muab ntxiv rau zinc da dej los txhim kho cov qauv thiab tuab ntawm cov hlau-zinc alloy txheej, uas ua rau lub ci ci ntshiab zinc txheej thiab kev ua haujlwm zoo. Lub caij no, thaum lub sij hawm kub-dip galvanizing, cov flux twb tau siv rau saum npoo ntawm cov yeeb nkab steel, thiab zinc chloride nyob rau hauv cov flux pib react me ntsis nrog cov hlau substrate. Raws li qhov kub ntawm cov yeeb nkab steel nce thaum ziab, cov tshuaj tiv thaiv nrawm. Yog li ntawd, ib zaug cov yeeb nkab steel yog submerged hauv zinc da dej rau galvanizing, hlau-zinc cov tshuaj tiv thaiv mus txog nws lub ncov. Qhov no ua kom lub sij hawm txaus txaus ntawm cov hlau thiab zinc los ntawm kev siv cov flux mus rau immersion nyob rau hauv zinc, ua rau nws tsis tshua muaj galvanizing tshwm sim. Txawm li cas los xij, "cov txheej txheem ntub dej" kub-dip galvanizing tsis muaj cov xwm txheej zoo. Ua ntej, aluminium tsis tuaj yeem ntxiv rau zinc da dej nto. Txawm hais tias aluminium ntxiv, nws reacts nrog chloride flux los tsim aluminium chloride, uas ces volatilizes. Tsis tas li ntawd, nyob rau hauv lub "ntub txheej txheem" ​​kub-dip galvanizing, cov yeeb nkab steel tsuas yog pib hu rau ib txheej nyias ntawm flux ntawm zinc da dej nto thaum nws tseem tsis tau coated nrog zinc. Qhov no ua rau lub sijhawm luv luv rau daim ntawv thov flux thiab tsis muaj zog tshuaj ntxuav lub zog, ua kom tsis muaj zog ntawm cov yeeb nkab steel. Qhov no cuam tshuam rau cov tshuaj tiv thaiv hlau-zinc thiab ua rau muaj qhov tsis zoo ntawm galvanizing.