Galvanized steel yeeb nkab

A: Galvanized insulated steel yeeb nkab yog siv rau cov pa roj thiab cov nkev, kev sib kis mus ntev ntawm cov kav dej siab.
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Txhawm rau tiv thaiv kev poob ntawm cathode electrons hauv cov kav dej, cov yeeb nkab galvanized tau ntim nrog cov hluav taws xob tannin (sib tov ntawm bitumen thiab quartz hmoov) thiab kraft ntawv, ob roj ob daim ntawv lossis peb roj peb daim ntawv ua ntej kev teeb tsa. Tom qab lub taub hau vuam, nws yuav tsum tau kho kom sib npaug. Lub rwb thaiv tsev tiv thaiv yuav tsum tsis pub tsawg tshaj 0.5 Mn, thiab xyuas seb cov yeeb nkab puas muaj hluav taws xob tsawg 380V / 220V.
Nyob rau sab ntawm cov kav xa hluav taws xob, qhov kev ncua deb ntawm 50cm, kaum tawm meters ntawm av galvanized l" yeeb nkab grounding daim kab xev yuav tsum tau muab tso rau hauv tib lub trench, thiab ib daim kab xev galvanized hlau yuav tsum tau nkag mus rau hauv qhov chaw kuaj.
Yog hais tias cov pa roj los yog cov pa roj ntsha tawm thiab tawg los ntawm cov txheej txheem insulating nyob rau hauv lub siab, cov electrons nkag mus rau hauv av, rov qab mus rau hauv av thiab nkag mus rau qhov ntsuas ntsuas, thiab tam sim ntawd muaj kev cuam tshuam los ntawm qhov ntsuas. Qhov kev ncua deb ntawm cov xau thiab txoj haujlwm ntawm cov yeeb nkab txhaum cai tuaj yeem txhim kho los kho cov neeg ua haujlwm.

A: Ua ntej, tom qab kub-dip galvanized, qhov chaw ntawm cov yeeb nkab galvanized tuaj yeem tiv thaiv. Nws yog ib qho nyuaj rau corrosion nkag mus rau hauv kab noj hniav los yog lwm yam coated fab, thiab raws li cov zinc tob tob, nws tuaj yeem yooj yim npog tag nrho ntawm qhov chaw, muab kev tiv thaiv zoo.
Thib ob, cov kav dej galvanized muaj qhov cuam tshuam zoo heev thiab tiv thaiv kev hnav tom qab galvanization. Lub hardness ntawm zinc txheej ntau tshaj li ntawm cov hlau, txhim khu cov yeeb nkab muaj peev xwm tiv taus cov cuam tshuam thiab puas. Tsis tas li ntawd, cov zinc txheej yuav thicker thiab muaj superior toughness thiab abrasion tsis kam, tshwj xeeb tshaj yog nyob rau hauv cov ces kaum, piv rau lwm cov txheej. Lwm cov txheej txheem feem ntau raug kev txom nyem los ntawm thinning, tshwj xeeb tshaj yog nyob rau ntawm cov ces kaum, ua rau lawv raug puas tsuaj.
Thib peb, qhov tseem ceeb ntawm qhov kub-dip galvanizing yog nws cov txheej txheem tiv thaiv kev txi. Nyob rau hauv cov xwm txheej ntawm kev puas tsuaj los yog lwm yam ua rau ua rau me me ntawm cov zinc txheej raug tshem tawm, cov hlau-raws li qhov chaw tseem tau txais txiaj ntsig los ntawm kev tiv thaiv kev txi ntawm cov zinc txheej puag ncig, tiv thaiv cov hlau los ntawm corrosion.
Thaum kawg, kub-dip galvanizing txhim kho ob qho tib si lub neej ntev thiab kev zoo nkauj ntawm cov hlau. Lub neej ntev ntawm galvanized steel feem ntau nyob ntawm lub thickness ntawm txheej, uas, nyob rau hauv lem, yog cuam tshuam los ntawm lub thickness ntawm cov yeeb nkab galvanized. Thicker galvanized kav feem ntau muab ntau dua txheej durability. Tsis tas li ntawd, nyob rau hauv ib puag ncig corrosive heev, thov pleev xim rau txheej galvanized ntxiv txhim kho corrosion kuj. Nrog rau cov xim tsim nyog, ua tiav kev tiv thaiv corrosion yog yooj yim ua tiav.

A: Cov yeeb nkab dub thiab galvanized steel yeeb nkab yog ob hom yeeb nkab uas siv los thauj cov kua thiab roj. Lawv sib koom ntau qhov sib xws, ua rau muaj kev ntxhov siab ntawm ntau tus neeg. Txawm li cas los xij, qhov sib txawv tseem ceeb ntawm cov yeeb nkab dub thiab cov yeeb nkab galvanized yog nyob rau hauv lawv cov muaj pes tsawg leeg thiab txheej.
Cov yeeb nkab dub thiab cov yeeb nkab galvanized yog ob qho tib si ua los ntawm cov hlau, tab sis cov yeeb nkab galvanized muaj zinc txheej, hos cov yeeb nkab dub tsis yog. Yog li ntawd, galvanized yeeb nkab yog kim dua thiab ruaj khov dua. Nyob rau hauv cov nqe lus ntawm kev thauj mus los, dub steel yeeb nkab nyhav erode yooj yim dua galvanized yeeb nkab. Yog li ntawd, cov yeeb nkab dub yog qhov tsim nyog rau kev thauj cov pa roj, qhov galvanized yeeb nkab yog qhov zoo dua rau kev nqa dej.
Galvanized yeeb nkab yog them nrog ib txheej ntawm zinc, uas txhim kho nws cov kev tiv thaiv corrosion thiab pab tiv thaiv cov pob zeb hauv av uas tuaj yeem thaiv cov yeeb nkab. Nws feem ntau yog siv los muab dej rau cov tsev thiab cov tsev lag luam thiab tseem ua haujlwm ua cov thav duab vim nws cov khoom tiv thaiv xeb. Ntawm qhov tod tes, cov yeeb nkab dub yog tsim los ua seamless, ua rau nws xaiv zoo dua rau kev thauj mus los roj. Nws kuj tseem siv tau rau cov tshuab hluav taws xob hluav taws xob vim nws muab kev tiv thaiv hluav taws zoo dua li cov yeeb nkab galvanized. Cov xim tsaus ntawm cov yeeb nkab dub yog vim muaj cov hlau oxide thaum lub sijhawm tsim khoom.
Ib qho teeb meem tseem ceeb ntawm cov yeeb nkab galvanized yog thaum lub sij hawm dhau mus, cov zinc txheej yuav flake tawm, ua rau cov yeeb nkab txhaws thiab muaj peev xwm tawg. Yog li ntawd, cov kav dej galvanized tsis pom zoo rau kev thauj cov pa roj thiab feem ntau siv los nqa dej. Conversely, dub steel yeeb nkab yog nquag mus corroding nyob rau hauv dej, thiab cov ntxhia cov ntsiab lus ntawm cov yeeb nkab yuav yaj thiab txhaws kab.
Feem ntau, cov yeeb nkab dub yog pheej yig dua li cov yeeb nkab galvanized vim yog cov nqi ntxiv ntawm zinc txheej thiab cov txheej txheem tsim khoom. Tsis tas li ntawd, cov yeeb nkab dub dub yuav tsum muaj kev saib xyuas qis dua thiab haum cov nqi.
Txhawm rau sib txawv ntawm cov yeeb nkab dub thiab galvanized steel yeeb nkab, muaj peb txoj hauv kev tseem ceeb: tshuaj xyuas cov xim ntawm cov yeeb nkab (dub steel yeeb nkab yog tsaus dua, thaum cov yeeb nkab galvanized yog silver-grey), txheeb xyuas cov khoom uas lawv nqa (galvanized yeeb nkab rau. dej, dub steel yeeb nkab rau roj), thiab xav txog lawv cov kev siv thiab cov khoom.

A: Yog tias koj npaj yuav txiav galvanized steel yeeb nkab, koj yuav xav tau lub hacksaw, lub raj-txiav cov cuab yeej, lossis cov saw saws. Tej zaum koj yuav xav tau ntau yam khoom siv txiav yog tias koj muaj ntau qhov ntau thiab tsawg ntawm cov yeeb nkab.
Yuav kom txiav nrog ib tug hacksaw
Ruaj ntseg cov yeeb nkab nyob rau hauv ib lub vise los yog clamp, thiab txhawb qhov ntev kawg yog tias tsim nyog. Pib txiav. Txij li thaum koj tsis muaj lub cev muaj zog, koj yuav xav tau ntau lub sijhawm thiab lub zog los txiav txoj kev no, tab sis nws tuaj yeem ua tau. Uas tau hais tias, tsis txhob siv lub zog ntau dhau. Thaum cov hlau sib cais, xa cov ntawv txiav xaus.
Txiav nrog lub raj-txiav cuab yeej
Thaum koj pib txiav, koj yuav tsum tau tig koj lub cutter nyob ib ncig ntawm cov yeeb nkab ob peb zaug. Thaum txiav tawm, ream cov yeeb nkab kom tsis txhob tawm hauv qhov xaus. Txhawm rau ua qhov no, koj yuav xav tau lub cuab yeej hu ua reamer.
Txiav nrog ib tug reciprocating saw
Lub tshuab txiav tshuab no tau txais txoj haujlwm sai. Muab tso rau ntawm koj lub PPE, kos koj qhov txiav, clamp koj cov yeeb nkab, thiab cia lub log ntawd ua haujlwm. Tsuas yog xyuas kom koj tsis txhob pib nrog lub log nias ncaj qha rau cov yeeb nkab vim qhov no tuaj yeem ua rau nws snag ntawm cov yeeb nkab thiab ua rau cov hniav puas.

A: Vuam galvanized steel kav yuav tsum muaj cov txheej txheem tshwj xeeb thiab kev ceev faj kom muaj kev ruaj khov thiab txhim khu kev qha thaum txo qis kev pheej hmoo ntawm zinc fumes thiab lwm yam kev phom sij. Nov yog cov lus qhia dav dav ntawm yuav ua li cas weld galvanized steel kav:
Kev Tiv Thaiv Kev Nyab Xeeb:
Hnav cov cuab yeej tiv thaiv tus kheej tsim nyog (PPE), nrog rau cov hnab looj tes vuam, ib lub kaus mom hlau uas muaj cov lim dej kom raug, cov khaub ncaws tiv thaiv, thiab kev tiv thaiv ua pa.
Ua haujlwm nyob rau hauv qhov chaw uas muaj cua zoo lossis siv qhov cua kom txo tau cov pa hluav taws xob tsawg.
Tsis txhob welding galvanized steel kav ze ntawm cov khoom siv hluav taws xob los tiv thaiv kev pheej hmoo ntawm hluav taws.
Kev npaj:
Ntxuav cov galvanized steel yeeb nkab kom huv si ua ntej vuam kom tshem tawm cov av, roj, lossis zinc txheej residue. Siv txhuam txhuam los yog cov tshuaj ntxuav tu kom huv si kom huv si.
Nco ntsoov tias cov vuam galvanized steel ua rau cov pa phem, yog li xyuas kom cov chaw ua haujlwm muaj qhov cua kom zoo thiab siv kev tiv thaiv ua pa.
Xaiv txoj kev vuam:
Muaj ob peb txoj kev vuam tsim nyog rau cov kav hlau galvanized, suav nrog cov hlua vuam (SMAW), MIG vuam (GMAW), thiab TIG vuam (GTAW).
Xaiv txoj kev vuam tsim nyog raws li qhov tuab ntawm cov yeeb nkab steel galvanized thiab cov txheej txheem vuam xav tau.
Cov txheej txheem vuam:
Xyuas kom muaj kev haum zoo ntawm cov kav dej, tswj xyuas qhov kev sib koom ua ke uas xav tau.
Teem lub tshuab vuam rau qhov tsim nyog raws li txoj kev vuam, cov yeeb nkab tuab, thiab kev sib koom ua ke.
Pib vuam los ntawm lub hauv paus ntawm kev sib koom ua ke thiab tswj kom muaj kev mus los tsis tu ncua kom ua tiav qhov sib xws thiab muaj zog vuam.
Yog tias siv MIG vuam txoj kev, kho qhov voltage, xaim pub ceev, thiab tiv thaiv cov roj ntws raws li cov chaw tsim khoom cov lus pom zoo.
Rau TIG vuam, siv cov pas nrig uas haum rau cov hlau galvanized thiab siv cov txheej txheem kom zoo los tswj cov cua sov thiab ua tiav cov vuam huv thiab meej.
Tom qab vuam:
Cia cov welded sib koom ua kom txias txias thiab tsis txhob quenching nrog dej, vim qhov no tuaj yeem ua rau zinc corrosion sai.
Tshawb xyuas qhov vuam ntawm qhov tsis xws luag lossis qhov tsis zoo thiab kho lawv yog tias tsim nyog.
Yog tias xav tau, tshem tawm cov zinc ntau dhau ntawm cov hlaws hlaws siv cov hlau txhuam los yog grinder.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias vuam galvanized steel ua rau cov zinc fumes uas tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv. Xyuas kom muaj qhov cua kom raug, siv kev tiv thaiv ua pa, thiab ua raws li cov lus qhia txog kev nyab xeeb kom txo tau qhov kis. Tsis tas li ntawd, kev sab laj cov kws tshaj lij vuam lossis nrhiav kev taw qhia los ntawm cov kws paub txog vuam tuaj yeem muab cov kev nkag siab zoo thiab cov txheej txheem tshwj xeeb rau koj qhov project vuam.

A: Galvanized steel kav siv dav siv hauv kev lag luam, kev lag luam, thiab kev siv vaj tse. Qee cov ntawv thov siv xws li:
Kev Siv Dej: Cov kav dej Galvanized yog siv dav rau kev thauj cov dej haus hauv cov tsev nyob thiab cov tsev lag luam. Lawv cov kev tiv thaiv corrosion ua kom cov dej huv thiab nyab xeeb.
Cov kav dej kav dej: Cov kav dej no feem ntau ua haujlwm rau cov kav dej vim lawv cov kav ntev thiab kev ntseeg tau.
Gas Pipelines: Galvanized steel kav yog qhov zoo tagnrho rau cov kav dej roj, vim tias lawv tuaj yeem tiv taus siab thiab muab cov kav dej ruaj ntseg rau kev faib roj.
Sab Nraum Sab Nraud: Qhov kev tiv thaiv corrosion ntawm galvanized steel ua rau nws muaj kev xaiv nrov rau cov qauv sab nraum zoov xws li tes tuav, laj kab, guardrails, thiab kos npe.
Irrigation Systems: Galvanized steel kav yog tsim rau irrigation systems vim lawv muaj peev xwm tiv taus ya raws thiab av tej yam kev mob.

A: Cov txheej txheem tsim khoom ntawm galvanized steel kav muaj ob peb kauj ruam los xyuas kom meej cov khoom ruaj khov thiab txhim khu kev qha kawg. Nov yog ib lub ntsiab lus luv luv ntawm cov txheej txheem:
Kev Tu: Cov kav hlau hlau tau raug ntxuav kom huv si kom tshem tawm cov impurities lossis cov khoom seem, kom ntseeg tau tias muaj kev sib raug zoo ntawm zinc txheej.
Pickling: Cov kav dej ces muab tso rau hauv cov kua qaub kom tshem tawm cov nplais los yog oxides nyob rau saum npoo. Cov kauj ruam no ntxiv npaj cov hlau rau txheej txheem galvanizing.
Galvanizing: Cov kav dej uas tau ntxuav thiab khaws cia rau hauv ib da dej ntawm zinc molten. Los ntawm cov tshuaj tiv thaiv metallurgical hu ua kub-dip galvanizing, zinc tsim cov txheej txheem nruj ntawm cov hlau.
Txias thiab tshuaj xyuas: Tom qab galvanization, cov kav dej txias thiab tshuaj xyuas kom zoo. Cov kauj ruam no ua kom cov zinc txheej zoo ib yam thiab tsis muaj qhov tsis xws luag.

A: Cov txheej txheem ntau lawm
Cov pa roj carbon steel kav yog ua los ntawm cov hlau ingots los yog cov khoom puag ncig steels uas yog perforated los ua cov hlab capillary, thiab tom qab ntawd ua los ntawm kub thiab txias dov thiab txias txias. Carbon steel yeeb nkab muaj txoj haujlwm tseem ceeb hauv cov yeeb nkab hauv tsev.
Galvanized steel kav siv kub-dip galvanizing. galvanized steel yeeb nkab yuav tsum tau kuaj xyuas qhov sib npaug ntawm cov txheej txheem galvanized.
Cov khoom sib txawv
Carbon steel yeeb nkab yog cov khoom siv alloy feem ntau muaj cov pa roj carbon thiab hlau. Nws muaj cov cuab yeej zoo heev thiab kev ua haujlwm, tab sis tsis zoo corrosion kuj. Nws feem ntau yog siv rau hauv cov raj xa dej los yog cov pa roj.
Galvanized steel yeeb nkab yog ib hom yeeb nkab uas tau raug kho electrochemically thiab coated nrog ib txheej zinc ntawm cov yeeb nkab steel, uas feem ntau ua rau cov yeeb nkab tsis muaj zog. Yog li ntawd, cov khoom ntawm cov yeeb nkab galvanized yog carbon steel, stainless hlau thiab lwm yam ntaub ntawv hlau.
Kev kho saum npoo
Cov pa roj carbon steel kav tsis yog qhov chaw kho lossis tsuas yog coated nrog roj, thiab muaj kev cuam tshuam rau sab nraud oxidation thiab corrosion, yog li lawv lub neej kev pab tsuas yog txwv.
Galvanized steel yeeb nkab yog coated nrog ib txheej ntawm zinc nyob rau saum npoo ntawm cov yeeb nkab steel, thiab txheej galvanized yog tsim los ntawm electroplating thiab lwm yam technologies. Txoj kev no tuaj yeem tsis tsuas yog tiv thaiv oxidation thiab corrosion, tab sis kuj txhim kho qhov hnav tsis kam thiab zoo nkauj ntawm cov yeeb nkab.
Cov yam ntxwv ua haujlwm
Corrosion kuj:
Lub corrosion kuj ntawm carbon steel yeeb nkab yog kuj tsis muaj zog. Yog tias nws yog siv los ua lub raj xa dej rau kev thauj khoom corrosive, nws yooj yim rau corroded thiab cov kab nrib pleb yuav tshwm sim, uas yuav cuam tshuam rau lub neej kev pab cuam ntawm cov kav dej.
Raws li ib yam ntawm cov yeeb nkab los tiv thaiv corrosion, galvanized steel yeeb nkab tau zoo heev corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv cov av noo thiab corrosive qhov chaw, nws yog tsim nyog rau siv.
Lub zog:
Cov pa roj carbon steel kav muaj lub zog siab, yog li lawv feem ntau siv rau hauv qhov chaw uas muaj kev kub siab, xws li cov kav dej ntau lawm hauv cov roj av, kev txhawb nqa rau cov tsev siab siab thiab txuas hniav, thiab lwm yam.
Lub zog ntawm galvanized steel yeeb nkab yog qhov tsis zoo, tab sis vim nws qhov zoo ntawm corrosion kuj thiab xeb kuj, nws tsim nyog rau qee lub sijhawm uas xav tau tsawg.
Scope ntawm kev siv:
Ob qho tib si carbon steel kav thiab cov kav dej galvanized feem ntau yog siv cov kav hlau, tab sis vim lawv cov khoom sib txawv thiab kev siv, thaj tsam ntawm daim ntawv thov kuj txawv.
Cov pa roj carbon steel kav yog tsim rau kev thauj cov pa roj los yog cov kua dej thiab muaj kev kub ntxhov; Thaum cov kav dej galvanized feem ntau yog siv rau qhov chaw ntub dej thiab corrosive, xws li petrochemical, tshuaj, shipbuilding thiab marine kev loj hlob, thiab lwm yam.

A: Kub-dip galvanizing tam sim no suav hais tias yog ib txoj hauv kev zoo tshaj plaws rau galvanize steel kav vim nws cov kav ntev thiab corrosion kuj. Cov txheej txheem suav nrog kev muab cov hlau tso rau hauv da dej ntawm zinc molten hauv 450 degrees Fahrenheit. Cov txheej txheem no tau ua tiav thaum lub raj steel (los yog EN (Euro Norm) lossis ASTM (American Society for Testing and Materials)) cov khoom txheem yog coated nrog kwv yees li 30 mus rau 40 microns ntawm cov zinc ntshiab.
Electroplating yog lwm txoj hauv kev nrov rau galvanize steel hlab vim nws qhov ua tiav zoo thiab tus nqi pheej yig piv rau lwm txoj hauv kev xws li kub-dip galvanization. Electroplating siv cov hluav taws xob tam sim no txhawm rau tso cov txheej nyias ntawm chromium, nickel lossis zinc rau saum cov hlau uas twb muaj lawm.
Mechanical plating, tseem hu ua mechanical polishing, yog ib qho khoom siv qis uas suav nrog ntxiv txheej nyias ntawm zinc siv cov txheej txheem abrasive blasting (shot peening). Hom txheej txheem galvanizing no tsis nrov vim nws qhov ua tiav qis dua thiab nyiam flake lossis tev tawm.
Yas txheej yog qhov tsawg tshaj plaws-siv txoj kev rau galvanizing steel hlab vim nws muaj tsawg functionality thiab tsis zoo corrosion kuj.

A: Cov yeeb nkab steel yog siv rau ntau yam, los ntawm kev tsim tsev mus rau kev thauj khoom hauv cov chaw tsim khoom. Lawv tuaj yeem ua los ntawm ntau hom hlau, tab sis galvanized steel yog ib qho ntawm feem ntau.
Galvanized steel muaj txheej zinc ntawm nws qhov chaw uas tiv thaiv corrosion. Qhov no pab tiv thaiv xeb, uas tuaj yeem ua teeb meem vim nws ua rau cov hlau tsis muaj zog. Cov hlau tsis-galvanized tsis muaj cov txheej txheem no thiab yuav xav tau kev saib xyuas ntau zaus kom tsis txhob muaj xeb.
Ob hom hlau tuaj yeem siv rau hauv kev tsim kho lossis lwm yam kev siv. Txawm li cas los xij, txhua tus muaj qhov zoo thiab qhov tsis zoo uas ua rau lawv zoo dua rau qee qhov xwm txheej dua li lwm tus.
Daim ntawv thov kev lag luam
Thaum uas tsis yog-galvanized steel tuaj yeem tiv taus dej ntsev, nws deteriorates sai hauv dej chlorinated, ua galvanized steel qhov kev xaiv zoo tshaj. Vim li no, galvanized hlau yog qhov zoo dua rau cov hlau tsis muaj steel thaum ob lub khoom tsim kev sib txhuam thiab fuse.
Tsis yog-galvanized steel, nyob rau hauv sib piv rau galvanized steel, yog ob qho tib si muaj zog thiab ntau corrosion-resistant, ua rau nws zoo tagnrho rau kev siv nyob rau hauv kev lag luam xws li aerospace, qhov uas durability yog qhov tseem ceeb tshaj plaws. Stainless hlau lub zog siab thiab tsis kam tiv thaiv corrosion los ntawm cov dej hiav txwv ua rau nws yog qhov kev xaiv nrov rau kev tsim cov choj thiab lwm cov qauv, cov duab puab, cov kab tsheb ciav hlau, thiab cov tsheb uas cia siab rau lub hauv paus ruaj khov.
Nqi
Tus nqi ntawm cov kav dej galvanized yog qis dua li cov kav dej uas tsis yog galvanized nyob rau lub sijhawm ntev. Qhov no yog vim cov kav dej galvanized yog cov kav ntev dua cov uas tsis yog-galvanized thiab tsis corrode yooj yim.
Lub zog
Lub zog ntawm cov kav dej galvanized nyob ntawm lub thickness ntawm txheej. Lub thicker lub txheej, qhov zoo dua nws yuav muaj peev xwm tiv taus corrosion los ntawm cov tshuaj nyob rau hauv dej los yog lwm yam khoom uas yuav tuaj nrog nws. Tias yog vim li cas galvanized steel kav muaj zog dua li cov kav hlau tsis muaj galvanized.
Corrosion kuj
Vim tias cov kav dej galvanized muaj cov txheej tiv thaiv uas tiv thaiv xeb, lawv tiv taus corrosion ntau dua li cov uas tsis yog-galvanized. Qhov no ua rau lawv zoo tagnrho rau siv nyob rau hauv cov chaw uas muaj av noo los yog raug dej ntsev los yog lwm yam corrosive yam xws li acids los yog alkalis.
Kub Resistance
Txhawm rau kom tsis txhob muaj cov tshuaj lom zinc fumes thaum rhuab, galvanized steel tsis haum rau siv nyob rau hauv high-temperature daim ntaub ntawv. Galvanized hlau yuav tsum tsis txhob siv nrog cov tais diav lossis khoom siv cuam tshuam nrog cov khoom noj khoom haus. Qhov no yog vim zinc txheej, uas hloov mus rau zinc ntsev thaum raug cov kua qaub, corrodes deb dua sai dua thaum noj nrog cov khoom noj acidic thiab dej haus.

A: Kub-dip galvanized steel kav: Cov no yog cov feem ntau hom galvanized steel kav. Lawv yog tsim los ntawm dipping steel kav rau hauv ib tug kub molten zinc da dej. Cov txheej txheem no tsim cov txheej tuab ntawm zinc uas muab kev tiv thaiv zoo tiv thaiv corrosion.
Electro-galvanized steel kav: Cov kav dej no yog tsim los ntawm kev siv txheej nyias ntawm zinc rau saum npoo ntawm cov hlau los ntawm electrolysis. Cov txheej txheem no tsis tshua kim tshaj li kub-dip galvanizing, tab sis nws tsim ib txheej txheej ntawm zinc uas muaj kev tiv thaiv tsawg dua ntawm corrosion.
Pre-galvanized steel kav: Cov kav dej no yog tsim los ntawm txheej hlau nrog zinc ua ntej nws tsim rau hauv cov kav dej. Cov txheej txheem no tsim cov txheej txheem uas yog thinner dua kub-dip galvanizing tab sis thicker dua electro-galvanizing.
Galvanized seamless steel kav: Cov kav dej no yog tsim tsis muaj seams, uas ua rau lawv muaj zog thiab ruaj khov dua li cov kav dej welded. Lawv feem ntau yog ua los ntawm cov txheej txheem kub-dip galvanizing.
Galvanized welded steel kav: Cov kav dej no yog tsim los ntawm vuam cov hlau los yog daim hlau ua ke thiab ces galvanizing lawv. Lawv feem ntau yog siv rau cov kav dej thiab cov kav dej.

A: Nov yog qee qhov laj thawj vim li cas cov kav dej galvanized corrode:
Zinc txheej tawg
Thaum lub zinc txheej muab kev tiv thaiv thawj zaug, nws tuaj yeem tawg dhau lub sijhawm vim raug rau ntau yam ib puag ncig xws li ya raws, oxygen, thiab tshuaj lom neeg. Raws li zinc txheej deteriorates, lub hauv paus hlau yog raug rau cov corrosive agents, ua rau corrosion.
Mechanical puas
Lub cev puas tsuaj rau cov txheej txheej galvanized, xws li khawb, dents, lossis abrasions, tuaj yeem nthuav tawm cov hlau hauv qab. Cov chaw puas tsuaj no dhau los ua qhov tsis zoo rau corrosion vim tias cov zinc txheej tiv thaiv raug cuam tshuam.
Localized Corrosion
Cov kav dej Galvanized tuaj yeem muaj kev cuam tshuam hauv zos, xws li pitting corrosion, nyob rau hauv cov cheeb tsam uas cov zinc txheej yog nyias los yog puas. Hom kev xeb no tuaj yeem tsim cov pits me lossis qhov ntawm cov yeeb nkab ntawm qhov chaw, nws thiaj li ua rau cov xau thiab cov qauv tsis muaj zog.
Tshuaj lom neeg
Cov kav dej Galvanized tuaj yeem raug cuam tshuam nrog cov tshuaj lossis cov khoom siv uas tuaj yeem ua kom tawg ntawm zinc txheej. Piv txwv li, raug rau qee cov kua qaub los yog alkalis tuaj yeem cuam tshuam cov txheej txheem tiv thaiv thiab ua rau corrosion.
Cov dej sib xyaw
Qhov sib xyaw ntawm cov dej ntws los ntawm cov kav dej galvanized kuj tuaj yeem ua lub luag haujlwm hauv corrosion. Yog hais tias cov dej yog acidic heev los yog muaj lwm yam corrosive hais, nws muaj peev xwm hnov ​​​​mob nrog zinc txheej thiab ceev nws degradation.