Lub paj zinc (spangle) yog tus yam ntxwv ntawm ib txwm kub-dip galvanized / aluminium-zinc coated steel nplooj ntawv. Tom qab cov hlau sawb hla dhau lub lauj kaub zinc, qhov saum npoo yog coated nrog cov kua zinc, thiab tom qab ntawd thaum lub sij hawm ntuj solidification txheej txheem ntawm zinc txheej, zinc siv lead ua nucleation thiab kev loj hlob tshwm sim, uas ua rau tsim cov zinc paj. Cov qauv crystalline ntawm zinc feem ntau zoo ib yam li cov hnub qub snowflakes lossis hexagonal hnub qub, yog li zinc crystals tau los ntawm cov txheej txheem kub-dip rau saum npoo ntawm cov hlau sawb muaj lub caij nyoog los tsim cov snowflake lossis hexagonal hnub qub zoo li zinc paj. High-purity zinc kua tsis tuaj yeem khov thiab tsim cov paj zinc thaum lub caij txias vim nws tsis muaj qhov tsim nyog crystallization nuclei.
Yuav kom tau txais cov paj zinc zoo, nws yog ib qho tsim nyog yuav tsum ntxiv ob hom alloying ntsiab lus nrog cov khoom sib txawv hauv qhov tsim nyog rau cov kua zinc. Ib hom alloying caij yog soluble tag nrho hauv cov kua zinc, tab sis yuav luag insoluble hauv cov khoom zinc, xws li txhuas thiab titanium; lwm yam alloying caij muaj ib tug tej yam solubility nyob rau hauv ob qho tib si kua thiab khoom zinc, xws li txhuas, tin, antimony, thiab lwm yam. Yog hais tias tsuas yog ib hom ntawm alloying caij ntxiv, txawm hais tias lub nto ntawm lub zinc txheej yuav hloov tom qab solidification, nws tsis txaus los tsim cov zinc paj.
Cov txheej txheem los tsim cov paj zinc yog tsim kom muaj coob tus ntawm crystallization nuclei kom ntxov li sai tau, txo qhov kub thiab txias ntawm zinc kua, thiab ncua sij hawm kev loj hlob ntawm zinc paj muaju los pab txhawb lawv txoj kev loj hlob.
Peb Zinc-Aluminium Coated Steel Coils yog tsim los rau kev ua kom zoo, muab qhov tshwj xeeb corrosion tsis kam thiab kav ntev. Qhov zoo tshaj plaws rau ntau yam kev siv, los ntawm vov tsev mus rau cov khoom siv tsheb, cov coils no muab kev tiv thaiv ntev thiab ua kom tiav. Cia siab rau peb cov khoom zoo, eco-phooj ywg rau koj cov kev xav tau hlau. Txhim kho koj cov haujlwm nrog peb cov Zinc-Aluminium Coated Steel Coils
