Cov txheej txheem kub-dip yog dab tsi?
Muaj ntau hom txheej txheej kub rau cov phaj hlau thiab cov kab hlau. Cov cai faib tawm thoob plaws cov qauv tseem ceeb - suav nrog Asmeskas, Nyiv, Tebchaws Europe, thiab Suav teb cov qauv hauv tebchaws - zoo sib xws. Peb yuav tshuaj xyuas siv cov qauv European EN 10346: 2015 ua piv txwv.
Cov txheej txheem kub-dip feem ntau poob rau hauv rau pawg loj:
- Zinc ntshiab kub-dip (Z)
- Kub-dip zinc-hlau alloy (ZF)
- Kub-dip zinc-aluminium (ZA)
- Kub-dip txhuas-zinc (AZ)
- Kub-dip txhuas-silicon (AS)
- Kub-dip zinc-magnesium (ZM)
Cov lus txhais thiab cov yam ntxwv ntawm ntau yam kub-dip coatings
Cov hlau uas tau kho ua ntej lawm raug muab tso rau hauv lub dab dej uas yaj. Cov hlau uas yaj sib txawv hauv lub dab dej ua rau muaj cov txheej sib txawv (tshwj tsis yog cov txheej zinc-iron alloy).
Kev Sib Piv Ntawm Kub-Dip Galvanizing thiab Electrogalvanizing
1. Txheej Txheem Galvanizing Txheej Txheem Txheej Txheem
Galvanizing yog hais txog cov txheej txheem kho saum npoo ntawm kev siv zinc txheej rau cov hlau, cov khoom sib xyaw, lossis lwm yam khoom siv rau kev zoo nkauj thiab tiv thaiv xeb. Cov txheej txheem siv dav tshaj plaws yog hot-dip galvanizing thiab cold galvanizing (electrogalvanizing).
2. Cov Txheej Txheem Kub-Dip Galvanizing
Niaj hnub no, txoj kev tseem ceeb rau kev galvanizing cov hlau ntawv yog hot-dip galvanizing. Hot-dip galvanizing (tseem hu ua hot-dip zinc txheej lossis hot-dip galvanization) yog ib txoj kev zoo ntawm kev tiv thaiv xeb hlau, feem ntau yog siv rau ntawm cov chaw ua haujlwm hlau thoob plaws ntau yam lag luam. Nws cuam tshuam nrog kev muab cov khoom siv hlau uas tau tshem tawm xeb rau hauv cov zinc molten ntawm kwv yees li 500 ° C, tso ib txheej zinc rau ntawm qhov chaw hlau kom ua tiav kev tiv thaiv xeb. Cov txheej txheem galvanizing hot-dip: Cov khoom tiav lawm ntxuav kua qaub → Dej yaug → Kev siv cov kua nplaum → Kev ziab → Dai rau txheej → Txias → Kev kho tshuaj → Kev ntxuav → Kev txhuam → Kub-dip galvanizing tiav.
3. Txheej Txheem Galvanizing Txias-dip
Kev galvanizing txias, tseem hu ua electrogalvanizing, siv cov khoom siv electrolytic. Tom qab tshem cov roj thiab ntxuav kua qaub, cov yeeb nkab fittings raug muab tso rau hauv cov tshuaj uas muaj cov ntsev zinc thiab txuas nrog lub davhlau ya nyob twg tsis zoo ntawm cov khoom siv electrolytic. Ib daim phaj zinc raug tso rau sab nraud ntawm cov fittings thiab txuas nrog lub davhlau ya nyob twg zoo. Thaum fais fab siv, qhov kev txav mus los ntawm qhov zoo mus rau qhov tsis zoo ua rau zinc tso rau ntawm cov fittings. Cov yeeb nkab fittings txias-galvanized raug ua tiav ua ntej galvanization.
Cov qauv kev siv tshuab ua raws li ASTM B695-2000 (Tebchaws Meskas) thiab cov lus qhia tub rog C-81562 rau kev siv tshuab galvanization.
Kev Sib Piv ntawm Kub-Dip Galvanizing vs. Txias-Dip Galvanizing
Kev galvanizing kub-dip muaj kev tiv thaiv xeb ntau dua li kev galvanizing txias-dip (tseem hu ua electrogalvanizing). Cov txheej electrogalvanized feem ntau yog li ntawm 5 txog 15 μm hauv tuab, thaum cov txheej galvanized kub-dip feem ntau tshaj 35 μm thiab tuaj yeem ncav cuag txog li 200 μm. Kev galvanizing kub-dip muab kev npog zoo dua nrog cov txheej tuab uas tsis muaj cov organic. Electrogalvanizing siv cov txheej zinc-filled los tiv thaiv cov hlau los ntawm kev xeb. Cov txheej no raug siv rau ntawm qhov chaw tiv thaiv siv txhua txoj kev txheej, tsim cov txheej zinc-filled tom qab ziab. Cov txheej qhuav muaj cov zinc ntau (txog li 95%). Hlau raug zinc plating rau ntawm nws qhov chaw hauv qab cov xwm txheej txias, thaum kev galvanizing kub-dip cuam tshuam nrog kev txheej cov kav hlau nrog zinc los ntawm kev immersion kub-dip. Cov txheej txheem no ua rau muaj kev sib txuas zoo heev, ua rau cov txheej tiv taus kev tev tawv.
Yuav ua li cas kom paub qhov txawv ntawm kub-dip galvanizing los ntawm txias galvanizing?
1. Kev Txheeb Xyuas Pom Kev
Cov nplaim galvanized kub-dip zoo li ntxhib me ntsis tag nrho, qhia txog cov dej, cov kua dej, thiab cov pob me me uas tshwm sim los ntawm cov txheej txheem - tshwj xeeb tshaj yog pom tseeb ntawm ib kawg ntawm cov khoom ua haujlwm. Tag nrho cov tsos yog nyiaj-dawb.
Cov nplaim uas raug electrogalvanized (txias galvanized) du dua, feem ntau yog xim daj-ntsuab, txawm hais tias tej zaum yuav muaj xim iridescent, xiav-dawb, lossis dawb nrog lub ci ntsuab. Cov nplaim no feem ntau tsis muaj zinc nodules lossis clumping.
2. Kev Sib Txawv Los Ntawm Cov Txheej Txheem
Kev galvanizing kub-dip muaj ntau kauj ruam: tshem cov roj, kua qaub pickling, kev muab tshuaj rau hauv, ziab, thiab thaum kawg muab tso rau hauv cov zinc molten rau lub sijhawm tshwj xeeb ua ntej tshem tawm. Cov txheej txheem no yog siv rau cov khoom xws li cov kav dej galvanized kub-dip.
Txawm li cas los xij, kev galvanizing txias yog qhov tseem ceeb electrogalvanizing. Nws siv cov khoom siv electrolytic qhov twg cov khoom ua haujlwm dhau los ntawm kev tshem tawm roj thiab pickling ua ntej muab tso rau hauv cov kua ntsev zinc. Txuas nrog cov khoom siv electrolytic, cov khoom ua haujlwm tso ib txheej zinc los ntawm kev txav mus los ntawm cov hluav taws xob ntawm cov electrodes zoo thiab tsis zoo.
Lub sijhawm tshaj tawm: Lub Kaum Hli-01-2025
