Kev tsim cov kav dej galvanized muaj ob peb kauj ruam, los ntawm kev npaj cov ntaub ntawv raw mus rau qhov kawg galvanized kho. Hauv qab no yog cov txheej txheem tsim khoom ntawm galvanized yeeb nkab:
1. Kev npaj cov khoom siv raw: Thawj kauj ruam hauv kev tsim cov kav dej galvanized yog los npaj cov khoom siv raw, feem ntau yog siv cov khoom siv txias-dov steel sawb ua cov khoom siv hauv paus. Lub steel sawb yog txiav, crimped thiab welded los tsim thawj cov duab ntawm cov yeeb nkab.
2. Vuam: Cov sawb hlau txiav yog txuas rau hauv lub raj los ntawm high-frequency induction vuam lossis arc vuam. Vuam tuaj yeem yog kauv vuam rau ntev welds lossis ncaj vuam rau luv welds.
3. Loj shaping: cov welded yeeb nkab tej zaum yuav muaj ib tug tej yam zoo li thiab loj sib txawv, yog li nws yuav tsum tau mus los ntawm dov, kos duab los yog txias txheej txheem los ua qhov loj, puab thiab phab ntsa thickness ntawm cov yeeb nkab raws li tus txheej txheem.
4. Kev Tu: Tom qab qhov seem shaping, tej zaum yuav muaj impurities xws li roj thiab hmoov av nyob rau saum npoo ntawm cov yeeb nkab, uas yuav tsum tau ntxuav kom huv si los xyuas kom meej lub adhesion ntawm lub tom ntej no galvanized txheej.
5. Pickling: Tom qab ntxuav cov yeeb nkab tej zaum yuav muaj oxides, txhawm rau txhim kho qhov adhesion ntawm txheej galvanized, cov yeeb nkab yuav raug kho kom tshem tawm cov oxides thiab xeb.
6. Pretreatment: Ua ntej galvanizing, cov yeeb nkab yuav tsum tau kho ua ntej, nrog rau kev kho deg thiab ziab, npaj rau galvanizing.
7. Galvanized: Tom qab pretreatment, cov yeeb nkab yog immersed nyob rau hauv molten zinc kua, thiab ib tug uniform zinc txheej yog tsim nyob rau saum npoo ntawm cov yeeb nkab steel los ntawm cov tshuaj tiv thaiv los yog electrochemical txoj kev, thiaj li mus cuag cov nyhuv ntawm galvanized.
