Dab tsi yog Cov Txheej Txheem Tseem Ceeb hauv Tig-Key Galvanizing Cog?

Ib tug tig-key galvanizing nroj tsuag ua hauj lwm nrog peb lub ntsiab systems. Cov tshuab no ua haujlwm txhawm rau npaj, txheej, thiab ua tiav cov hlau. Cov txheej txheem siv cov cuab yeej tshwj xeeb xws liCov Khoom Siv Khoom Siv Hluav Taws Xob GalvanizingthiabQhov Me Me Galvanizing kab (Robort). Kev lag luam kub-dipped galvanizing qhia tau hais tias muaj peev xwm loj hlob.

Ntsiab Cai

• Lub galvanizing cog muaj peb lub hauv paus tseem ceeb: kev kho ua ntej, galvanizing, thiab tom qab kho. Cov tshuab no ua haujlwm ua ke los ntxuav, txheej, thiab ua tiav cov hlau.
• Lub tshuab ua ntej kev kho mob ntxuav cov hlau. Nws tshem tawm cov av, roj, thiab xeb. Cov kauj ruam no pab cov zinc nplaum zoo rau cov hlau.
• Covgalvanizing qhov systemmuab zinc txheej rau ntawm cov hlau. Cov txheej txheem tom qab kev kho mob txias cov hlau thiab ntxiv cov txheej txheem tiv thaiv zaum kawg. Qhov no ua rau cov hlau muaj zog thiab ruaj khov.

System 1: Kev Kho Mob Ua Ntej

Pre-Treatment System yog thawj zaug thiab tseem ceeb tshaj plaws nyob rau hauvtxheej txheem galvanizing. Nws txoj hauj lwm tseem ceeb yog los npaj cov hlau zoo kawg nkaus. Qhov chaw huv si tso cai rau cov zinc tsim kom muaj zog, sib txuam nrog cov hlau. Cov txheej txheem no siv cov tshuaj dips los tshem tawm tag nrho cov kab mob.

Degreasing Tanks

Degreasing yog thawj kauj ruam tu. Cov khoom hlau tuaj txog ntawm cov nroj tsuag uas muaj cov kab mob xws li roj, av, thiab roj. Degreasing tanks tshem tawm cov khoom no. Cov tso tsheb hlau luam muaj cov tshuaj daws teeb meem uas rhuav tshem cov grime. Cov kev daws teeb meem muaj xws li:

• Alkaline degreasing daws
• Acid degreasing daws
• High-kub alkaline degreasers

Nyob rau hauv North America, ntau galvanizers siv rhuab sodium hydroxide daws. Cov neeg ua haujlwm feem ntau ua kom sov cov alkaline tank rau ntawm 80-85 ° C (176-185 ° F). Qhov ntsuas kub no txhim kho kev ua haujlwm zoo yam tsis muaj nqi hluav taws xob siab ntawm boiling dej.

Rinsing Tanks

Tom qab txhua txoj kev kho tshuaj, cov hlau txav mus rau lub tank rinsing. Rinsing tshem tawm cov tshuaj seem ntawm lub tank dhau los. Cov kauj ruam no tiv thaiv kev kis kab mob ntawm cov da dej tom ntej hauv qhov sib lawv liag. Kev yaug kom zoo yog qhov tseem ceeb rau kev ua tiav zoo.

Kev lag luam Standard:Raws li SSPC-SP 8 Pickling Standard, yaug dej yuav tsum huv si. Tag nrho cov kua qaub los yog yaj ntsev nqa mus rau hauv lub tso tsheb hlau luam yuav tsum tsis txhob ntau tshaj ob grams ib liter.

Acid Pickling Tanks

Tom qab ntawd, cov hlau nkag mus rau hauv cov kua qaub pickling tank. Lub tank no muaj cov kua qaub diluted, feem ntau hydrochloric acid. Cov kua qaub txoj haujlwm yog tshem tawm xeb thiab zeb nplai, uas yog hlau oxides ntawm cov hlau nto. Cov txheej txheem pickling nthuav tawm cov liab qab, huv si hauv qab, ua kom nws npaj rau cov kauj ruam kawg.

Fluxing Tanks

Fluxing yog kauj ruam kawg hauv kev kho ua ntej. Cov hlau huv si poob rau hauv aflux tankmuaj zinc ammonium chloride tov. Cov tshuaj no siv cov txheej txheem tiv thaiv crystalline rau cov hlau. Cov txheej no ua ob yam: nws ua qhov kawg micro tu thiab tiv thaiv cov hlau los ntawm oxygen hauv huab cua. Cov yeeb yaj kiab tiv thaiv no tiv thaiv cov xeb tshiab los ntawm kev tsim ua ntej cov hlau nkag mus rau hauv kub kub zinc kettle.

System 2: Galvanizing System

Tom qab kev kho ua ntej, cov hlau txav mus rau Galvanizing System. Lub hom phiaj ntawm qhov system no yog siv covtiv thaiv zinc txheej. Nws muaj peb yam tseem ceeb: lub qhov cub kom qhuav, lub qhov cub galvanizing, thiab zinc kettle. Cov khoom no ua haujlwm ua ke los tsim cov hlau nplaum sib txuas ntawm cov hlau thiab zinc.

Qhuav qhov cub

Lub qhov cub kom qhuav yog thawj nres hauv qhov system no. Nws txoj hauj lwm tseem ceeb yog kom qhuav cov hlau tom qab lub fluxing theem. Cov neeg ua haujlwm feem ntau ua kom sov lub qhov cub kom txog 200 ° C (392 ° F). Qhov kub siab no evaporates tag nrho cov seem noo noo. Cov txheej txheem kom qhuav yog qhov tseem ceeb vim tias nws tiv thaiv kev tawg hauv cov zinc kub thiab tsis txhob muaj cov txheej txheem zoo li pinholes.

Cov tshuab ziab khaub ncaws niaj hnub no suav nrog cov qauv kev txuag hluav taws xob. Cov yam ntxwv no txo ​​cov roj noj thiab txhim kho cov nroj tsuag efficiency.

• Lawv tuaj yeem siv cov pa hluav taws xob los ntawm lub qhov cub rau pre-heat steel.
• Lawv feem ntau suav nrog cov txheej txheem kho cua sov.
• Lawv xyuas kom optimized thiab uniform cua sov faib.

Galvanizing Rauv

Lub qhov cub galvanizing muab cov cua kub hnyav uas xav tau los yaj cov zinc. Cov chav muaj zog no nyob ib puag ncig ntawm zinc kettle thiab tuav cov zinc molten ntawm qhov kub thiab txias. Furnaces siv ob peb lub tshuab cua sov siab heev kom ua haujlwm tau zoo. Cov hom muaj xws li:

• Pulse Fired High-Velocity Burners
• Indirect cua sov rauv
• Hluav taws xob rauv

Kev nyab xeeb ua ntej: Rauv ua haujlwm ntawm qhov kub siab heev, ua rau kev nyab xeeb tseem ceeb. Lawv tau tsim nrog cov rwb thaiv tsev kub kub, cov sensors digital los saib xyuas qhov kub thiab txias, thiab cov qauv tsim uas tso cai rau yooj yim tshuaj xyuas cov hluav taws kub thiab tswj li qub.

Zinc Kettle

Zinc kettle yog lub thawv loj, cov duab plaub uas tuav cov zinc molten. Nws zaum ncaj qha rau hauv lub qhov cub galvanizing, uas heats nws. Lub lauj kaub yuav tsum tau ua kom ruaj khov heev kom tiv taus qhov kub thiab txias thiab qhov corrosive ntawm cov kua zinc. Vim li no, cov tuam txhab tsim cov kettles los ntawm tshwj xeeb, qis-carbon, qis-silicon steel. Qee lub sij hawm kuj tseem muaj lub hauv ob sab hauv ntawm cov cib refractory ntxiv rau lub neej ntev.

System 3: Kev Kho Mob Tom Qab

Txoj Kev Kho Mob Tom Qab yog theem kawg hauv qhovtxheej txheem galvanizing. Nws lub hom phiaj yog kom txias cov hlau coated tshiab thiab siv cov txheej txheem tiv thaiv zaum kawg. Qhov system no ua kom cov khoom muaj qhov xav tau zoo li qub thiab ua haujlwm ntev. Cov khoom tseem ceeb yog quenching tanks thiab passivation chaw nres tsheb.

Quenching Tanks

Tom qab tawm hauv lub lauj kaub zinc, cov hlau tseem kub heev, nyob ib ncig ntawm 450 ° C (840 ° F). Quenching tanks sai txias cov hlau. Qhov txias txias no nres cov tshuaj tiv thaiv metallurgical ntawm zinc thiab hlau. Yog tias cov hlau txias qeeb hauv huab cua, cov tshuaj tiv thaiv no tuaj yeem txuas ntxiv mus, ua rau lub ntsej muag du, mottled tiav. Quenching pab tswj kom muaj qhov ci ntsa iab, zoo nkauj dua. Txawm li cas los xij, qee qhov kev tsim steel tsis haum rau quenching vim tias qhov kub hloov pauv sai tuaj yeem ua rau warping.

Cov neeg khiav dej num siv cov kua sib txawv, lossis nruab nrab, rau quenching raws li qhov xav tau:

• Dej:Muab cov cua txias tshaj plaws tab sis tuaj yeem tsim cov zinc ntsev tshem tawm ntawm qhov chaw.
• Cov roj:Txias cov hlau tsawg dua li dej, uas txo qhov kev pheej hmoo ntawm kev tawg thaum txhim kho ductility.
• Molten Salts:Muab qhov qeeb qeeb, tswj kom txias ntau dua, txo qis kev cuam tshuam.

Passivation thiab Finishing

Passivation yog qhov kawg tshuaj kho mob. Cov txheej txheem no siv ib txheej nyias, pom tsis tau rau ntawm qhov chaw galvanized. Cov txheej no tiv thaiv cov zinc txheej tshiab los ntawm oxidation ntxov ntxov thiab tsim "dawb xeb" thaum khaws cia thiab thauj.

Safety thiab Environmental Note:Keeb kwm, passivation feem ntau siv cov tshuaj uas muaj hexavalent chromium (Cr6). Txawm li cas los xij, cov tshuaj no yog tshuaj lom thiab carcinogenic. Tsoom fwv cov koom haum xws li US Occupational Safety and Health Administration (OSHA) nruj me ntsis tswj nws siv. Vim tias muaj kev txhawj xeeb txog kev noj qab haus huv thiab ib puag ncig, kev lag luam tam sim no tau siv ntau yam kev nyab xeeb, xws li trivalent chromium (Cr3+) thiab chromium-free passivators.

Cov kauj ruam kawg no ua kom covgalvanized khoomtuaj txog ntawm nws qhov chaw huv, tiv thaiv, thiab npaj siv.

Qhov tseem ceeb Plant-Wide Support Systems

Peb lub hauv paus tseem ceeb hauv cov nroj tsuag galvanizing vam khom cov kev txhawb nqa tseem ceeb kom ua haujlwm zoo thiab ua haujlwm zoo. Cov nroj tsuag thoob plaws lub cev no tswj cov khoom txav, tshwj xeeb txheej dej num, thiab kev nyab xeeb ib puag ncig. Lawv txuas tag nrho cov txheej txheem los ntawm pib mus rau qhov kawg.

Khoom Siv Khoom Siv

Lub kaw lus tuav cov khoom txav hnyav steel fabrications thoob plaws hauv qhov chaw. Niaj hnub nimno galvanizing nroj tsuag yuav tsum tau high-qib cranes thiab lwm yam khoom siv los tswj cov workflow. Cov khoom siv no yuav tsum tswj qhov hnyav ntawm cov khoom thiab tiv taus kub kub thiab tshuaj lom neeg.

• cranes
• Hoists
• Conveyors
• Lifters

Cov neeg ua haujlwm yuav tsum xav txog qhov siab tshaj plaws ntawm cov khoom siv no. Rau cov khoom hnyav hnyav, nws yog qhov zoo tshaj plaws los sab laj cov galvanizer kom ntseeg tau tias lawv lub cev tuaj yeem tuav qhov hnyav. Qhov kev npaj no tiv thaiv kev ncua thiab ua kom muaj kev nyab xeeb.

Cov Khoom Siv Khoom Siv Hluav Taws Xob Galvanizing

Nroj tsuag sivCov Khoom Siv Khoom Siv Hluav Taws Xob Galvanizingkom ua tiav ib txheej zinc txheej ntawm cov khoom loj lossis cov khoom siv. Txheem dipping tej zaum yuav tsis txaus rau tej daim nrog cov duab tsis zoo los yog sab hauv. Cov cuab yeej tshwj xeeb no siv cov txheej txheem qib siab, xws li kev tswj hwm ib feem txav los yog cov tshuab txau tshuab, kom ntseeg tau tias zinc molten ncav cuag txhua qhov sib npaug. Kev siv cov cuab yeej tsim nyog galvanizing yog qhov tseem ceeb rau kev ua kom tau raws li cov qauv kev ua tau zoo ntawm cov khoom xws li cov kab teeb loj lossis cov sib dhos sib txawv. Kev siv zoo ntawm Cov Khoom Siv Hluav Taws Xob Galvanizing tuaj yeem lav qhov zoo ib yam thiab tiv thaiv tiav.

Fume Extraction thiab kho

Cov txheej txheem galvanizing tsim fumes, tshwj xeeb tshaj yog los ntawm cov kua qaub pickling tanks thiab covkub zinc kettle. Lub fume extraction thiab kho qhov system yog qhov tseem ceeb rau cov neeg ua haujlwm kev nyab xeeb thiab kev tiv thaiv ib puag ncig. Cov kab ke no ntes cov vapors tsis zoo ntawm lawv qhov chaw, ntxuav cov huab cua los ntawm kev txhuam los yog cov lim dej, thiab tom qab ntawd tso tawm kom zoo.

Kev Nyab Xeeb & Ib puag ncig:Kev tshem tawm fume zoo tiv thaiv cov neeg ua haujlwm los ntawm kev nqus cov tshuaj vapors thiab tiv thaiv kev tso tawm cov pa phem rau hauv qhov chaw, ua kom cov nroj tsuag ua raws li cov cai ntawm ib puag ncig.

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Ib tug tig-key galvanizing nroj tsuag integrates peb core systems. Kev kho mob ua ntej ntxuav cov hlau rau zinc adhesion. Cov txheej txheem galvanizing siv cov txheej txheem, thiab tom qab kho cov khoom tiav. Cov txheej txheem txhawb nqa, suav nrog Cov Khoom Siv Hluav Taws Xob Galvanizing, sib koom ua ke tag nrho cov txheej txheem. Cov nroj tsuag niaj hnub siv automation thiab cov ntsuas kev ua haujlwm tseem ceeb los txhim kho kev ua haujlwm thiab kev ruaj khov.