Kuv yuav ua li cas yog khawb tshwm ntawm galvanized ntawv hlau thaum siv? Yuav ua li cas thiaj yuav raug kho?
Cov khawb pleev ua rau cov hlau hauv paus thiab xav tau kho sai. Cov txheej txheem nyob ntawm qhov tob ntawm khawb:
Qhov khawb qis (tsuas yog zinc txheej puas, tsis muaj qhov pib siv cov xim hlau): muaj siab {{purity zinc hmoov) thiab cia kom ua ib txheej tiv thaiv.
Kev khawb qhov muag (raug hluav taws xob hauv paus nrog cov xeb me ntsis):
Sandpaper kom tshem tawm xeb thiab nthuav tawm cov hlau huv.
Siv Zinc Primer (los sau cov kos).
Siv zinc topcoat kom ntseeg tau tias kev pab them tag nrho.
NCO TSEG: Kev tshuaj xyuas ib txwm yog yuav tsum tau kho tom qab kho kom tiv thaiv cov txheej kho los ntawm peeling.
Yuav ua li cas ceev faj yuav tsum tau coj thaum siv galvanized ntawv hlau nyob hauv cov ntug hiav txwv? Kuv tuaj yeem txuas nws li cas lifespan?
Cov chaw dej hiav txwv muaj cov ntsev siab cov ntsev (cov tshuaj tsuag ntsev ntau), xav tau kev tiv thaiv kev tiv thaiv:
Xaiv cov txheej txheej zinc hnyav (GI): Zinc Txheej Ceeb hnyav dua li lossis sib npaug ntawm thaj chaw "Galvanizing + Kev Tiv Thaiv" Kev Tiv Thaiv.
Kev tu tsis tu ncua: Yaug tawm saum npoo nrog dej tshiab txhua txhua 3-6 lub hlis kom tshem tawm cov ntsev uas tau tawm.
Zam kev sib cuag nrog dej hiav txwv: Yog tias cov ntaub ntawv ntim khoom tuaj yeem nkag mus rau hauv dej hiav txwv (xws li ntawm dock cov chaw (xws li cov xim roj (xws li cov tshuaj fluorocarbon).
Sealing pob qij txha: Siv huab cua - Realant Sealant los txiav tawm cov ntawv pob qij txha los txhawm rau txhawm rau nkag cov pob zeb thiab corroding.
Siv galvanized sheet hlau siv rau hauv cov ntawv thov zaub mov noj, xws li cov khoom noj khoom haus khoom noj khoom haus thiab chav ua noj? Ceev faj yog qhia: Cov zaub mov ncaj qha nrog rau daim ntawv galvanized tsis pom zoo rau cov laj thawj hauv qab no:
The zinc layer may dissolve in acidic foods (such as fruit and vinegar) (zinc ion migration), and long-term excessive zinc intake is harmful to the human body.
Yog tias siv hauv cov ntawv thov zaub mov, ob qhov xwm txheej yuav tsum tau ua tiav:
Siv "zaub mov {{{{{{{}} qib galvanized ntawv" (Zinc Purity ntau dua los yog sib npaug ntawm cov txhuas xws li txhuas thiab cadmium);
Thov cov zaub mov - cov txheej txheej (xws li epoxy betin lossis polytetrosraethylene) mus rau cais lub zinc txheej los ntawm kev sib cuag zaub mov.
Cov Kev Siv Cov Ntawv Siv Hauv: Cov hauv qab ntawm cov khoom siv khoom noj khoom haus tso cai (uas yuav tsum tau ntov). Nws tsis pom zoo rau kev siv hauv chav ua noj ua kom muaj kev sib chwv nrog cov zaub mov (xws li cov lauj kaub thiab cov lauj kaub;
Dab tsi yog qhov zoo thiab tsis zoo ntawm daim ntawv galvanized vagtus stainless hlau? Koj yuav xaiv li cas?
Ob leeg puav leej yog corrosion - ionistant cov ntaub ntawv, nrog cov txiaj ntsig tseem ceeb thiab qhov tsis zoo.
Dab tsi yog "Kev Kho Mob Passive" rau galvanized ntawv? Dab tsi yog qhov sib txawv ntawm chromium - pub dawb passivation thiab chromium-}}}}}}}}}}}}} nws muaj passivation?
Kev Kho Mob Passivation Passion Oxide Zaj Duab Xis (Passivation zaj duab xis) ntawm sab galvanized daim ntawv los txhim kho corrosion tsis kam thiab tiv thaiv dawb xeb ua haujlwm thiab tiv thaiv kom dawb xeb ua rau cia. Chromium {{{- Raws li cov neeg ua yeeb yaj kiab uas muaj kev sib tw ua ke (muaj cov kua yeeb yaj kiab Txawm li cas los xij, CRR TSI yog cov tshuaj lom thiab paug, thiab nws siv tam sim no tau txwv tsis pub muaj (nws raug txwv los ntawm EU RoHS cov lus qhia).
Chromium - PUB DAWB: Kev kho mob nrog Zirconates kev daws teeb meem zoo xws li Zirconates tsim ib zaj duab xis passivation ua yeeb yaj kiab uas yog cov oxide lossis silicated. Qhov no tsis yog - kev lom zem thiab ua tau raws li ib puag ncig ib puag ncig, tab sis nws cov chromium-}}
Tam sim no, mainstream galvanized steel ntawv txhua yam siv chromium passivation tseem siv tsuas yog nyob rau qee cov ntawv thov tshwj xeeb (xws li cov tub rog cov ntawv thov).