Electro-galvanized embedded phaj durability? 

Cia peb txiav los ntawm kev lag luam fluff. Thaum ib tug neeg nug txog kev ua haujlwm ntev ntawm lub phaj electro-galvanized embedded, lawv feem ntau nug tiag tiag: Cov khoom no puas xeb rau kuv hauv tsib xyoos, lossis kuv tuaj yeem hnov ​​​​qab txog nws? Cov lus teb luv luv, tsis xis nyob yog: nws nyob ntawm qhov koj tab tom muab tso rau hauv, thiab qhov tseem ceeb tshaj, qhov koj tab tom txuas rau nws. Kuv tau pom daim phiaj uas zoo li pristine tom qab kaum xyoo thiab lwm tus uas pib pom cov xeb dawb nyob hauv qab ob. Qhov yuam kev feem ntau yog kho cov zinc txheej raws li daim ntaub thaiv npog, tsis quav ntsej txog kev sib yuav electrochemical - lossis kev ua tsov rog - nws nkag mus rau ib zaug.

Qhov Tseeb Ntawm Zinc Sacrifice

Electro-galvanizing yog txheej txheem ua haujlwm rau ib qho laj thawj. Nws kuj pheej yig, muab cov txheej txheem sib xws, du, thiab muaj kev tiv thaiv corrosion zoo rau lub phaj nws tus kheej hauv ntau qhov chaw. Cov kab lus tseem ceeb yog rau lub phaj nws tus kheej. Lub sijhawm koj welding ib lub pob los yog ntsia liaj qhov rooj ib yam dab tsi los ntawm nws, koj tau cuam tshuam lub txheej ntawm qhov ntawd. Cov lus nug durability ces hloov ntawm lub phaj mus rau lub fastener system. Yog tias koj tab tom siv carbon steel ntsia liaj qhov rooj, koj tau tsim ob peb galvanic classic. Lub zinc yuav txia kev tiv thaiv tus ntsia liaj qhov rooj, corroding sai ntawm cov ntsiab lus txuas. Kuv nco qab txog lub tsev khaws khoom txee qhov project uas peb tau siv cov qauv EG daim hlau nrog cov hlau thauj tog rau nkoj. Cov phiaj tau zoo, tab sis lub taub hau thauj tog rau nkoj yog qhov tsis sib haum ntawm cov xeb liab nyob rau hauv peb lub xyoos hauv qhov nruab nrab ntawm qhov nruab nrab. Kev kho tsis yog txheej zinc txheej tuab ntawm lub phaj; nws tau hloov mus rau kub-dip galvanized lossis txawm tias stainless hlau thauj tog rau nkoj kom zoo dua cov peev txheej galvanic.

Txheej tuab yog koj thawj kab ntawm kev tiv thaiv, tab sis nws tsis yog tus lej ntawm daim ntawv spec. Lub 5-micron txheej yuav ua tau zoo txaus rau qhov qhuav, sab hauv vaj huam sib luag mounting. Sim ua rau ntawm lub phaj teem rau hauv lub pob zeb hauv qhov chaw nres tsheb uas siv cov ntsev ntsev ntsev, thiab koj yuav tau saib tsis ua haujlwm nyob rau ob peb lub caij ntuj no. Txoj cai ntawm tus ntiv tes xoo? Rau sab nrauv, nruab nrab-kev siv daim ntawv thov, kuv tsis kam qhia txhua yam hauv qab 12 microns. Txawm li ntawd los, nws tsis yog hais txog thickness uniformity. Ntug, txiav xaus, thiab weld aav yog qhov uas tsis ua haujlwm pib. Ib tus neeg xa khoom zoo yuav muaj cov txheej txheem tswj hwm rau rov txheej lossis kaw cov chaw no tom qab kev tsim khoom, tab sis qhov ntawd yog ib kauj ruam ntxiv thiab raug nqi ntau sim hla.

Tom qab ntawd muaj lub hauv paus hlau npaj. Qhov no yog qhov uas koj cais cov neeg xa khoom ncaj ncees los ntawm cov teeb meem. Yog tias cov hlau tsis raug ntxuav thiab khaws ua ntej zinc da dej, adhesion tsis zoo. Kuv tau pom txheej blistering thiab tev tawm hauv nplooj ntawv thaum tuav, cia nyob ib leeg hauv kev pabcuam. Nws yog qhov ua tsis tiav uas koj tuaj yeem pom ntxov ntxov yog tias koj paub tias yuav nrhiav dab tsi: qhov pom me ntsis mottled lossis tsis zoo adhesion ntawm sheared npoo. Ib lub tuam txhab zoo li HANDAN ZITAI FREWER RAUG UA MOV., Ltd., raws li nyob rau hauv Tuam Tshoj tus loj fastener hub nyob rau hauv Yongnian, feem ntau muaj lub teev thiab txheej txheem tswj los tswj qhov no tsis tu ncua, uas yog vim li cas mus nrhiav tau los ntawm tsim ntau lawm bases tseem ceeb. Lawv qhov chaw nyob ze ntawm txoj kev thauj loj xws li Beijing-Guangzhou Railway txhais tau tias lawv tau teeb tsa rau cov khoom loj, tus qauv zoo, tsis yog kev ua haujlwm ib leeg.

Ib puag ncig Embedded yog huab tais

Koj tsis tuaj yeem tham txog phaj durability yam tsis tau tham txog lub pob zeb. Qhov no yog qhov hloov pauv loj tshaj plaws. High-alumina los yog chloride-contaminated qhob yog ib qho kev tuag rau ib qho khoom siv hlau, electro-galvanized los yog tsis. Lub alkaline ib puag ncig ntawm cov pob zeb zoo nkauj tiag tiag pab ua kom cov zinc, tsim cov txheej txheem ruaj khov uas ua rau qeeb corrosion. Tab sis pob zeb tsis yog ib qho khoom siv. Kuv tau koom nrog hauv txoj haujlwm marine pier qhov twg cov spec hu ua electro-galvanized embeds. Nws yog kev puas tsuaj tos kom tshwm sim. Cov tshuaj chloride tsis tu ncua los ntawm cov tshuaj tsuag ntsev thiab qhov chaw txaws nkag tau dhau los ntawm zinc lub peev xwm txia sai. Peb yuav tsum tau ua qhov kev hloov pauv nruab nrab ntawm qhov kev txiav txim rau epoxy-coated rebar thiab stainless khi pas nrig, nrog rau cov phaj sib pauv rau kub-dip galvanized. Ib zaj lus qhia kim heev hauv kev ntsuam xyuas ib puag ncig.

Installation puas yog lwm yam uas ntsiag to killer. Cov neeg ua haujlwm pov daim hlau rau hauv cov ntawv, taug kev ntawm lawv, lossis muaj cov tawb rebar rub hla lawv tuaj yeem khawb cov txheej mus rau liab qab. Thaum embedded, qhov khawb ntawd dhau los ua cov anode hauv micro-galvanic cell, accelerating localized corrosion. Tam sim no kuv hais rau kev tiv thaiv yooj yim xws li daim kab xev ib ntus ntawm cov xov xov los yog qhia tias cov phaj yuav muab tso rau tom qab qhov pib rebar lev tau teeb tsa. Nws ntxiv tej zaum 5% rau lub sijhawm ua haujlwm tab sis tuaj yeem ua ob npaug rau lub neej kev pabcuam zoo.

Yuav ua li cas txog kev sib txuas rau lwm cov hlau? Qhov no yog qhov twg galvanic series kab kos ua kev nyeem ntawv thaum pw tsaug zog. Txuas lub phaj electro-galvanized (zinc-coated steel) mus rau tooj dag haum lossis tooj liab yeeb nkab hauv av yog nug txog teeb meem. Cov zinc yuav corrode aggressively los tiv thaiv ntau noble tooj liab. Kuv tau pom qhov no hauv kev txhawb nqa dej siv dej. Txoj kev daws teeb meem yog kev sib cais-siv dielectric bushings los yog ntxhua khaub ncaws los rhuav tshem cov hluav taws xob ntawm cov hlau tsis sib xws. Nws yog ib qho me me, pheej yig tivthaiv uas yuav luag ib txwm saib tsis tau hauv thawj specs.

Thaum zoo tsis txaus

Muaj lub sijhawm thiab qhov chaw rau electro-galvanized embeds. Sab hauv, ib puag ncig qhuav, cov cuab yeej siv tshuab hauv paus qhov twg qhov kev sib txuas tseem yog zinc-coated? Nws yog lub suab zoo kawg nkaus, kev xaiv nyiaj txiag zoo. Cov teeb meem tshwm sim thaum nws siv raws li qhov kev qhia tshwj xeeb yam tsis muaj vim li cas. Kuv tau tshuaj xyuas kaum ob ntawm cov qauv kos duab uas txhua qhov embed tau sau tseg EG tsuas yog vim nws yog nyob rau hauv qhov project kawg cov ntsiab lus.

Peb tau ua qhov kev sim sib piv ob peb xyoos dhau los, faus cov qauv daim hlau los ntawm cov txheej txheem sib txawv hauv qhov ntsuas nrog cov av hnyav, muaj dej qab ntsev. Cov qauv electro-galvanized tau pom tias muaj zinc poob tseem ceeb thiab lub hauv paus hlau corrosion ntawm cov npoo hauv 18 lub hlis. Cov qauv kub-dip galvanized tau nyuam qhuav pib qhia qee cov zinc patina. Cov qauv stainless hlau? Visually tsis hloov. Tus nqi piv yog kwv yees li 1: 1.5: 4. Lub durability piv tsis yog linear; nws zoo li 1:3:20 hauv qhov chaw ntawd. Cov ntaub ntawv lag luam rau kev siv nyiaj ntau dua tau ua kom pom tseeb rau daim ntawv thov tshwj xeeb.

Qhov no yog qhov chaw sib tham ntawm cov khoom siv sib tham tau txais tiag. Rau bulk, txheem embed daim hlau, ib lub chaw tsim tshuaj paus zoo li Zitai Fastener (koj tuaj yeem nrhiav lawv ntau ntawm https://www.zitaifasteners.com) ua kom paub. Lawv tsim ntawm qhov ntsuas uas ua kom cov txheej txheem sib xws rau cov qauv qib thiab txheej txheej. Tab sis rau ib qho chaw tseem ceeb heev los yog corrosive, tej zaum koj yuav tau mus dhau lawv cov txheej txheem catalog - qhia txog cov txheej tuab, kev kho chromate passivation tom qab galvanizing, los yog ib qho sib txawv substrate steel. Cov lus nug yog seb lawv cov kab ntau lawm puas hloov tau txaus rau cov kev cai txiav txim, lossis yog tias koj zoo dua nrog tus kws tsim khoom tshwj xeeb.

Hom Failure thiab Yuav Ua Li Cas

Durability tsis tshua muaj txhais tau tias lub phaj snaps hauv ob. Nws yog kev poob haujlwm. Hom ntau tshaj plaws yog xov qaug dab peg. Cov zinc corrodes ntawm threads ntawm welded studs, expanding thiab xauv lub txiv ntseej. Kuv tau siv sij hawm nyuaj siab rau ntawm qhov chaw uas muaj qhov cuam tshuam thiab teeb taws sim ua kom dawb ceev ntawm embeds uas tsuas yog rau xyoo. Siv ib coarser xov suab los yog siv high-zinc anti-seize paste thaum lub sij hawm installation yog yooj yim, pheej yig mitigations uas yuav luag tsis muaj nyob rau hauv tus qauv spec.

Lwm qhov yog txo lub zog rub tawm. Raws li lub phaj thiab nws cov studs corrode, qhov kev ua tau zoo ntawm kev sib tsoo txo. Qhov no yog qhov tseem ceeb rau kev nyab xeeb-tseem ceeb anchors xws li kev tiv thaiv lub caij nplooj zeeg lossis seismic bracing. Peb tsis muaj txoj hauv kev zoo uas tsis muaj kev puas tsuaj los xyuas qhov no thaum nws tau teeb tsa, uas yog vim li cas thawj qhov kev qhia tshwj xeeb thiab kev tshuaj xyuas ib puag ncig yog qhov tseem ceeb heev. Yog tias koj tab tom tshuaj xyuas cov qauv uas twb muaj lawm, nrhiav cov xeb staining quaj los ntawm cov pob zeb nyob ib ncig ntawm lub embed. Qhov ntawd yog lub cim qhia ntawm kev ua haujlwm corrosion. Thaum koj pom qhov ntawd, qhov poob ntawm seem yog qhov tseem ceeb.

Qee zaum qhov tsis ua haujlwm yog qhov zoo nkauj. Dawb xeb (zinc oxide) stains ntawm cov pob zeb ua tiav. Nws tsis yog teeb meem kev teeb tsa thaum ntxov, tab sis nws zoo li txaus ntshai ntawm facade. Qhov no feem ntau tshwm sim thaum cov phaj khaws cia rau hauv qhov chaw ntub dej ua ntej embedded, ua rau ntub cia stain. Nws yog qhov teeb meem tswj xyuas qhov zoo ntawm tus neeg xa khoom lossis lub tsev khaws khoom. Ib tus neeg muag khoom zoo yuav ua kom qhuav thiab pob daim hlau los tiv thaiv qhov no. Yog tias koj tab tom tau txais daim phiaj uas twb tau pom cov dawb, hmoov av ncaj nraim ntawm lub crate, tsis lees paub lawv. Cov txheej tiv thaiv ntawd twb tau siv ib nrab ua ntej nws txawm ua nws txoj haujlwm.

Qhov Kev Txiav Txim Siab: Ib Qhov Kev Xam Xaj

Yog li, puas yog electro-galvanized embedded phaj ruaj? Nws tuaj yeem ua tau, tab sis nws cov kav ntev tsis yog cov cuab yeej hauv nruab nrab. Nws yog ib qho cuab yeej system. Koj tab tom yuav ib feem nrog ib txheej kev txi. Nws lub neej ntev nyob ntawm qhov kev ua phem ntawm ib puag ncig, qhov zoo ntawm daim ntawv thov txheej, cov hlau nws kov, thiab kev saib xyuas thaum lub sijhawm teeb tsa. Nws tsis yog ib qho teeb meem thiab tsis nco qab kev daws teeb meem rau cov xwm txheej hnyav.

Rau qhov tsis tseem ceeb, sab hauv, lossis kev tswj ib puag ncig, nws yog qhov kev xaiv zoo tshaj plaws. Qhia kom meej qhov tsawg kawg nkaus txheej tuab (Kuv xav sib cav rau 12+ microns rau txhua yam tsis muaj pob txha qhuav), thov daim ntawv pov thawj los ntawm cov chaw tsim khoom, thiab xyuas kom txhua qhov txuas txuas nrog cov txheej txheem sib xws. Rau sab nrauv, ntub dej, los yog cov tshuaj chloride-tshuaj, koj yuav zoo dua los ntawm kev txav mus rau qhov nkhaus nkhaus kom kub-dip galvanized lossis mechanical galvanizing rau cov txheej tuab, muaj zog dua. Rau qhov tseem ceeb tshaj plaws los yog corrosive daim ntaub ntawv, tus nqi pib dua ntawm stainless hlau embeds yog qhov kev xaiv zoo tshaj plaws.

Thaum kawg, nws los txog rau qhov no: txhais cov kev pabcuam ib puag ncig thiab xav tau lub neej ua haujlwm ua ntej. Tom qab ntawd rov qab-spec lub phaj thiab nws cov kev sib txuas. Tsis txhob cia li ua rau electro-galvanized vim nws yog cov kab uas txhua tus paub. Qhov kev xav ntawd yog qhov ua rau ua tsis tiav ntxov, hu rov qab, thiab kho kim. Lub durability yog muaj, tab sis tsuas yog tias koj tsim rau nws.