Galvanized steel yeeb nkab yog cov yeeb nkab steel uas tau coated nrog zinc txheej. Zinc txheej txheej tiv thaiv cov yeeb nkab steel los ntawm corrosion thiab xeb. Cov txheej zinc muab kev tiv thaiv corrosion kom cov yeeb nkab tuaj yeem siv rau sab nraum zoov ib puag ncig nrog kev txaus siab rau lub neej. Nws yog feem ntau siv rau kev tsim kho sab nraum zoov xws li laj kab thiab tes tuav, lossis rau qee qhov ducts sab hauv. Qee zaum nws tuaj yeem siv los tsim cov kab ke scaffolding. Piv txwv li, cov khoom ntawm scaffolding system zoo li scaffolding kav. Kev tiv thaiv kev tiv thaiv ua pov thawj sib npaug zoo tiv thaiv kev puas tsuaj los ntawm cov av noo hauv tsev thiab sab nraum zoov corrosion.
Yuav kom tsim tau ib tug kub-dipped galvanized steel yeeb nkab, cov yeeb nkab steel yuav tsum tau muab tso rau hauv ib tug molten da dej ntawm zinc. Cov txheej txheem no tseem hu ua kub-dipped galvanization. Ob lub hlau yog chemically txuas mus rau ib leeg nyob rau hauv cov txheej txheem no, uas ua rau ib tug ntau resistant thiab kav ntev version ntawm steel.
Cov kauj ruam ntau lawm
Cov txheej txheem ntws yog: dub raj-alkaline ntxuav-dej ntxuav-pickling-dej yaug-soaking pab-drying-kub dip galvanizing-sab sab tshuab-sab hauv tshuab-cua txias-dej txias-Passivation-dej yaug-kev soj ntsuam-hnyav-cia. .
kev txawj ntse
1. Hom thiab tshuaj muaj pes tsawg leeg
Qib thiab tshuaj muaj pes tsawg leeg ntawm cov hlau rau galvanized steel kav yuav tsum ua raws li qib thiab tshuaj muaj pes tsawg leeg ntawm cov hlau rau clarinet teev hauv GB / T3091.
2. Txoj kev tsim khoom
Txoj kev tsim khoom ntawm cov yeeb nkab dub (qhov cub vuam lossis hluav taws xob vuam) yog xaiv los ntawm cov chaw tsim khoom. Kub-dip galvanizing yog siv rau galvanizing.
3. Xov thiab cov yeeb nkab txuas
(A) Rau galvanized steel kav xa nrog threads, cov xov yuav tsum tau machined tom qab galvanizing. Cov xov yuav tsum ua raws li YB 822 cov cai.
(B) Cov yeeb nkab steel hlau yuav tsum ua raws li YB 238; malleable cam khwb cia hlau yeeb nkab pob qij txha yuav tsum ua raws li YB 230.
4. Cov khoom siv kho tshuab Cov khoom siv ntawm cov kav hlau steel ua ntej galvanizing yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm GB 3091.
5. Uniformity ntawm galvanized txheej Galvanized steel yeeb nkab yuav tsum tau sim rau cov uniformity ntawm galvanized txheej. Cov yeeb nkab steel qauv yuav tsum tsis txhob ua liab (tooj liab-plated) tom qab muab tso rau hauv tooj liab sulfate tov rau 5 zaug sib law liag.
6. Cold khoov xeem Lub galvanized steel yeeb nkab nrog lub nominal txoj kab uas hla ntawm tsis ntau tshaj 50mm yuav tsum tau mus rau ib tug txias khoov xeem. Lub kaum sab xis yog 90 degree, thiab lub vojvoog khoov yog 8 npaug ntawm txoj kab uas hla. Tsis muaj qhov muab tub lim thaum kuaj, thiab qhov vuam ntawm cov qauv yuav tsum muab tso rau sab nraud lossis sab sauv ntawm qhov kev taw qhia khoov. Tom qab kev sim, yuav tsum tsis txhob muaj kab nrib pleb thiab tev ntawm zinc txheej ntawm cov qauv.
7. Kev ntsuas dej siab Kev ntsuas dej siab yuav tsum tau ua nyob rau hauv lub clarinet. Eddy tam sim no qhov teeb meem nrhiav pom kuj tuaj yeem siv los ntawm kev ntsuas dej siab. Kev ntsuas siab lossis qhov loj ntawm qhov piv txwv piv rau kev ntsuas tam sim no yuav tsum ua raws li qhov yuav tsum tau ua ntawm GB 3092. Cov khoom siv ntawm cov hlau yog cov cim tseem ceeb los xyuas kom meej qhov kev siv kawg (cov khoom siv tshuab) ntawm cov hlau.
