Zinc txhaj tshuaj muaj qhov pom kev zoo nkauj, qhov sib txawv ntawm zinc thiab tsis tshua muaj tawv, uas tuaj yeem tshem cov burrs loj loj yam tsis tau hnav ntawm cov khoom lag luam. Nws yog dav thov hauv kev tshem tawm kev tshem tawm thiab tu zinc thiab txhuas khoom, thiab yog hu ua" tus kws ua kom zoo nkauj ntawm cov hlau saum npoo" ;.
Aluminium txhaj muaj qhov ci ci nrog rau cov thooj voos kheej kheej. Nws yog dav siv nyob rau hauv kev kho saum npoo ntawm aluminium, zinc lossis nyias-phab ntsa workpiece, thiab tsis tuaj yeem hnav cov nplaim ntawm cov khoom tib lub sijhawm vim tias nws cov tawv tawv tsis tshua muaj. Aluminium kuj tseem muaj qhov tseem ceeb ntawm kev ntxuav hniav dawb rau saum npoo ntawm haujlwm.
Los ntawm ob lub ntsiab lus saum toj no, peb tuaj yeem paub tias zinc txhaj tshuaj thiab txhuas txhaj tshuaj tag nrho cov tsuas yog siv rau cov xuab zeb tu, kev deb deb thiab sab nraud tsom iav kho ntawm qhov chaw. Thaum lub sijhawm txhaj tshuaj tag, kev siv ntawm lawv tuaj yeem ua rau cuam tshuam muag. Yog li dab tsi yog qhov txawv? Cov hmoov av nyob rau saum npoo ntawm cov txheej txheem ua haujlwm los ntawm kev txhaj tshuaj tiv thaiv aluminium yuav ua rau tawg, tab sis qhov tshwm sim ntawm qhov tawg los ntawm zinc txhaj tshuaj yog ib feem kaum ntawm kev txhaj tshuaj txhuas, yog li siv zinc txhaj tshuaj dua li kev txhaj tshuaj txhuas tuaj yeem txhim kho kev nyab xeeb. Tsis tas li ntawd, yog hais tias saum npoo ntawm cov hlau qhov chaw thiab cov khoom siv hlau tsis yog tso cai muaj cov hlau tsis zoo, tom qab ntawd cov zinc txhaj tshuaj kuj yog ib qho khoom siv zoo tagnrho.
