Nws feem ntau yog vim qhov hnyav ntawm cov hlau thiab zinc. Cov lus teb hnyav ntawm Fe-Zn ua rau cov txheej txheem tseem ceeb uas tau tsim los ntawm cov txheej txheem hlau thiab cov zinc txheej ntshiab rau qhov tshwm sim ntawm tsuas yog txheej txheej alloy thiab tsis muaj zinc txheej. Grey los yog tsaus grey yog xim ntawm hlau zinc alloy. Tsis tas li ntawd, yog tias qhov zoo ntawm zinc kua dej deteriorates, cov ntsiab lus hlau nyob rau hauv cov kua zinc nce, thiab cov zinc txheej ntshiab ntawm qhov chaw tom qab galvanized yog grey vim hlau, ua rau xim sib txawv.
Cov laj thawj tshwj xeeb:
1. Cov khoom siv plating muaj ntau cov pa roj carbon, silicon, sulfur, phosphorus thiab lwm yam khoom. Cov tshuaj tiv thaiv electrochemical ntawm cov hlau thiab zinc yog qhov siab heev vim qhov inert electrode tsim los ntawm cov khoom no, uas ua rau cov hlau zinc cov tshuaj tiv thaiv hnyav.
2. Cov ntsiab lus ntawm cov ntsiab lus hlau xws li txhuas hauv zinc kua yog me me, thiab nws tsis tuaj yeem cuam tshuam nws cov hlau-zinc cov tshuaj tiv thaiv rau galvanized steel thiab lwm yam ntaub ntawv.
3. Cov ntsiab lus hlau ntau ntxiv hauv cov kua zinc, uas ua rau cov kua zinc tsis zoo.
