Feem ntau, txhuas tsis ntxiv rau cov da dej zinc thaum ua cov ntub dej kub-dip galvanizing. Yog tias txhuas ntxiv rau cov da dej zinc, vim nws qhov kev kub siab dua piv rau zinc, nws yuav ntab saum npoo ntawm cov da dej zinc. Flux siv nyob rau hauv ntub dej kub-dip galvanizing yog ncaj qha muab tso rau saum npoo ntawm cov da dej zinc. Yog li ntawd, flux yuav xub tuaj rau hauv kev sib cuag nrog cov txheej txhuas ntawm cov npoo, ua rau muaj kev tawm tsam hnyav ntawm ob. Qhov tshuaj tiv thaiv no tsim cov neeg hloov pob Aluminium Trichloride, nrog cov tshuaj tiv thaiv cov mis:
3zncl₂ + 2 al → 3zn + 2 alcl₃↑
Los ntawm cov mis saum toj no, nws tuaj yeem pom tau tias qhov kev hloov pauv zinc tsawg dua los ntawm cov khoom siv aluminium los ntawm nws cov compound (ZNCL₂), sib sau aluminium trichhloride (Alcl₃). Aluminium Trichloride tuaj yeem rhaub txawm nyob rau ntawm qhov kub ntawm 123 degree thiab yog li ntawd yog li evaporates sai ntawm flux. Nyob rau tib lub sijhawm, tsis sib xws Aluminium Trichhloride muaj peev xwm tsim cov accessoluble cov kua thiab huv. Tsis muaj ib qho chaw nyob thiab yaj ntawm 400 degree. Raws li tau hais los saum no, cov evaporation ntawm txhuas teb cov ntsiab lus nyob rau hauv cov chlorine cov ntsiab lus hauv flux, uas ua rau plam galvanizing me me ntawm cov npoo ntawm galvanized steel kav.
