Qhov sib txawv ntawm kub dip galvanizing thiab pre-galvanizing
Dab tsi yog kub dip galvanizing?
Kub-dip galvanizing(galvanizing), tseem hu ua kub-dip galvanizing thiab kub-dip galvanizing: yog ib txoj kev zoo ntawm hlau los tiv thaiv corrosion thiab yog tsuas yog siv rau hlau structural chaw nyob rau hauv ntau yam industries. Nws yog txhawm rau txhawm rau txhawm rau txhawm rau xeb tshem tawm cov hlau rau hauv cov kua zinc molten ntawm li 500 degree, kom cov zinc txheej txuas rau saum npoo ntawm cov hlau, yog li ua tiav lub hom phiaj ntawm kev tiv thaiv corrosion. Txhawm rau ua cov hlau galvanized siv txoj kev no, peb yuav tsum ua raws li 4 kauj ruam: kev ntxuav saum npoo, fluxing, kub dip plating thiab txias.
1. Txoj Cai
Pre-galvanizing yog tshuaj ntxuav cov hlau thiab tom qab ntawd tso ib txheej ntawm zinc rau saum npoo ntawm cov hlau los ntawm electrolysis. Kub-dip galvanizing yog rau raus cov hlau hauv molten zinc kua ua ntej, kom lub nto ntawm cov hlau yog them nrog ib txheej ntawm zinc-hlau alloy.
2. Cov txheej txheem ntau lawm
Pre-galvanizing yog ua cov hlau los ntawm kev nruam oxidation annealing, electrostatic galvanizing thiab lwm yam txheej txheem. Cov khoom lag luam nrawm nrawm, tsis siv neeg ntau lawm tuaj yeem paub, cov txheej txheem ua haujlwm yooj yim, thiab kev tiv thaiv ib puag ncig zoo. Kub-dip galvanizing yuav tsum tau cov hlau yuav tsum tau pickled, ntxuav thiab ces dip-plated, thiab qhov ntau lawm ceev kuj qeeb.
3. Anti-corrosion kev ua tau zoo
Txawm hais tias pre-galvanized muaj kev ua haujlwm ntawm kev tiv thaiv xeb, tseem muaj qee qhov sib txawv piv nrog kub-dip galvanizing. Kub-dip galvanizing tuaj yeem tsim cov tuab zinc-hlau alloy txheej ntawm cov hlau, uas muaj kev tiv thaiv oxidation zoo dua thiab ua haujlwm zoo dua los tiv thaiv corrosion, thiab tuaj yeem tiv thaiv cov hlau los ntawm xeb mus ntev. Lub peev xwm los tiv thaiv xeb ntawm cov hlau ua ntej galvanized yog qhov tsis zoo thiab tuaj yeem txuas ntxiv kev pabcuam lub neej ntawm cov hlau mus rau qee yam.
4. Tus nqi
Nyob rau hauv cov nqe lus ntawm tus nqi, cov txheej txheem ntawm pre-galvanizing yog yooj yim dua thiab tsis tas yuav tsum tau ua tom qab, yog li tus nqi raug qis dua kub-dip galvanizing. Txawm li cas los xij, los ntawm qhov kev xav ntawm kev pabcuam lub neej, kub-dip galvanizing tuaj yeem tiv thaiv cov hlau los ntawm xeb rau lub sijhawm ntev. Yog li ntawd, rau qee lub sijhawm nrog kev siv sijhawm ntev thiab siab tiv thaiv corrosion, nws raug nquahu kom xaiv cov khoom kub-dip galvanized.
Muaj qee qhov sib txawv ntawm kub dip galvanizing thiab pre-galvanizing txheej txheem. Kev nkag siab txog qhov sib txawv no yuav tso cai rau peb xaiv cov txheej txheem thiab cov khoom tsim nyog tshaj plaws rau koj qhov project. Hauv cov ntsiab lus, nws yog ib txwm tsim nyog los xaiv qhov zoo tshaj plaws galvanized steel khoom ntawm ntau yam kev xaiv muaj nyob rau hauv kev ua lag luam.
