Galvanizing yog txheej txheem ntawm kev siv cov txheej tiv thaiv zinc rau hlau los yog hlau los tiv thaiv corrosion. Cov txheej txheem feem ntau yog siv rau hauv kev tsim cov kav dej, tshwj xeeb tshaj yog cov siv hauv ntau yam kev lag luam xws li kev tsim kho, roj thiab roj, thiab dej.Galvanizing qauv rau cov kav dejNws yog ib qho tseem ceeb los xyuas kom meej qhov zoo thiab kav ntev ntawm cov kav dej galvanized. Cia peb dhia rau hauv cov ntsiab lus ntawm cov yeeb nkab galvanizing cov qauv thiab lawv txhais li cas hauv cov yeeb nkab galvanizing kab.
Galvanizing yeeb nkabCov qauv yog tsim los ntawm American Society for Testing and Materials (ASTM) lub koom haum thoob ntiaj teb. ASTM teeb tsa cov qauv tshwj xeeb rau cov txheej txheem galvanizing, uas suav nrog cov tuab ntawm txheej txheej galvanized, adhesion ntawm txheej, thiab tag nrho cov khoom zoo.galvanizednto. Cov qauv no yog qhov tseem ceeb rau kev tswj xyuas kev ncaj ncees ntawm cov yeeb nkab galvanized thiab ua kom nws cov kev ua tau zoo hauv ntau yam kev siv.
Ib qho ntawm cov qauv tseem ceeb rau cov yeeb nkab galvanized yog ASTM A123 / A123M, uas qhia txog cov kev cai rau galvanized txheej ntawm cov khoom steel, nrog rau cov kav dej. Cov txheej txheem no qhia txog yam tsawg kawg nkaus txheej thickness, adhesion thiab tiav rau galvanized yeeb nkab. Nws kuj muab cov lus qhia rau kev tshuaj xyuas thiab kev sim ntawmgalvanized txheejkom ua tau raws li cov qauv.
In yeeb nkab galvanizing kab, ua raws li ASTM A123 / A123M cov qauv yog qhov tseem ceeb rau kev tsim cov yeeb nkab zoo galvanized. Cov txheej txheem galvanizing feem ntau suav nrog ntau theem, suav nrog kev kho saum npoo, kub-dip galvanizing thiab tom qab ua tiav. Txhua theem yuav tsum ua raws li ASTM cov qauv kom ua tiav cov txheej txheem txheej txheej thiab qhov zoo.
Kev npaj saum npoo yuav tsum ntxuav cov kav dej kom tshem tawm cov xeb, nplai lossis lwm yam impurities uas tuaj yeem tiv thaiv covgalvanizingtxheej los ntawm adhering. Cov kauj ruam no yog ib qho tseem ceeb los xyuas kom meej adhesion ntawm cov khoomgalvanized txheejmus rau lub kav dej. Cov txheej txheem kub-dip galvanizing suav nrog immersing ntxuav cov kav dej hauv da dej ntawm zinc molten, uas metallurgically bonds rau cov hlau los tsim cov txheej txheem tiv thaiv..
Tom qab cov txheej txheem galvanizing, cov yeeb nkab yuav ua tiav tom qab ua tiav, uas yuav suav nrog quenching, passivation lossis kuaj txheej tuab thiab adhesion. Cov kauj ruam tom qab ua tiav no yog qhov tseem ceeb los xyuas kom meej tias cov yeeb nkab galvanized ua tau raws li cov kev cai ntawm ASTM cov qauv thiab npaj rau kev siv ntau yam kev siv.
Ua raws liyeeb nkab galvanizingcov qauv tsis tsuas yog ua kom zoo thiab kav ntev ntawm cov yeeb nkab, tab sis kuj tseem txhawb nqa nws txoj kev ua haujlwm ntev thiab kev tiv thaiv corrosion. ASTM-raws li galvanized yeeb nkab yog tsim rau sab nraum zoov, cov av noo thiab corrosive ib puag ncig, ua rau nws zoo tagnrho rau kev siv xws li kev faib dej, kev txhawb nqa thiab kev tsim cov kav dej.
Nyob rau hauv cov ntsiab lus, cov yeeb nkab galvanizing cov qauv txhais los ntawm ASTM International ua lub luag haujlwm tseem ceeb hauv cov yeeb nkab galvanizing ntau lawm kab. Ua raws li tus qauv no kom paub meej tiasgalvanized yeeb nkabua tau raws li qhov tsim nyog yuav tsum tau rau txheej thickness, adhesion thiab tag nrho zoo. Los ntawm kev ua raws li cov qauv ASTM,manufacturerstuaj yeem tsim tauzoo galvanized yeeb nkabuas muab superior corrosion tiv thaiv thiab kev pab cuam lub neej nyob rau hauv ib tug ntau yam ntawm industrial thiab coj mus muag daim ntaub ntawv.
Lub sij hawm xa tuaj: Mar-29-2024