Yuav Ua Li Cas Zinc Aluminium Thermal Spray Tiv Thaiv Hlau los ntawm Corrosion?
Zinc aluminium thermal spray tiv thaiv corrosionua haujlwm los ntawm kev sib xyaw ua ke ntawm kev tiv thaiv hluav taws xob hluav taws xob thiab kev tiv thaiv lub cev. Thaum Zn-Al txheej yog siv rau cov hlau, cov hlau nplaum sib cais cov hlau substrate los ntawm ib puag ncig ib puag ncig thaum zinc tuaj yeem muab kev tiv thaiv kev txi thaum cov txheej hauv zos puas lossis raug. Aluminium pab txhawb rau txheej txheej tus cwj pwm corrosion thiab pab tsim kom muaj qhov chaw ruaj khov dua. Kev ua tau zoo tiag tiag nyob ntawm cov khoom sib xyaw alloy, kev npaj nto, txheej thickness, txheej txheem thov, sealing, thiab kev pabcuam ib puag ncig.
Zinc Aluminium Thermal Spray Tiv Thaiv Hlau Li Cas?
Ib lub zinc-aluminium thermal spray txheej tiv thaiv hlau los ntawm kev tsim cov hlau tiv thaiv txheej saum npoo av npaj.
Cov txheej txheem kev tiv thaiv feem ntau muaj ntau yam cuam tshuam ntxiv:
Kev tiv thaiv kev txilos ntawm zinc tivthaiv.
Barrier tiv thaivuas txwv kev sib cuag ncaj qha ntawm cov hlau thiab ib puag ncig.
Cov tshuaj tiv thaiv nto thiab corrosion{0}} tsim khoomthaum raug.
Tswj txheej txheej txheejua los ntawm cov txheej txheem thermal spray.
Cov txheej txheem no ua haujlwm ua ke es tsis ua haujlwm raws li kev tiv thaiv kev tiv thaiv tag nrho.
Rau cov kws tshaj lij thiab cov kws tshaj lij txheej txheej, lub ntsiab lus tseem ceeb yog Zn-Al txheej kev ua tau zoo tsis yog txiav txim siab los ntawm alloy chemistry ib leeg. Kev npaj deg, daim ntawv thov txheej, thickness, porosity, sealing, thiab ib puag ncig cuam tshuam kuj yuav tsum tau xav txog.
Yuav ua li cas thaum Zn-Al Thermal Spray yog siv rau hlau?
Thermal spraying deposits molten los yog heated metallic hais mus rau ib tug npaj steel nto.
Rau zinc aluminium hlau, cov txheej txheem ib txwm muaj kev pub cov hlau rau hauv cov khoom siv tshuaj tua hluav taws xob, yaj lossis cua sov cov hlau, thiab atomizing cov khoom mus rau lub substrate.
Cov txheej txheem yooj yim yog:
Kev npaj steel → xaim pub → melting / atomization → particle cuam tshuam → txheej txheej → xaiv sealing → kev pabcuam raug
Cov txheej txheej tshwm sim muaj cov khoom siv hlau tso tawm ntau dua li cov xim pleev xim rau cov yeeb yaj kiab.
Kev npaj nto yog qhov tseem ceeb tshwj xeeb vim tias txheej txheej xav tau kev sib cuag nrog cov hlau substrate. Kev kis kab mob, qhov tsis txaus ntawm qhov roughness, lossis kev npaj tsis tsim nyog tuaj yeem cuam tshuam rau txheej txheej thiab txheej txheej txheej txheej.
Rau cov txheej txheem- cov ntaub ntawv tshwj xeeb, saib peb phau ntawv qhia rau [zinc aluminium hlau thermal txau] thiab [arc spray vs nplaim taws tsuag].
Lub luag haujlwm dab tsi Zinc ua si hauv kev tiv thaiv corrosion?
Zinc tseem ceeb heev vim nws tuaj yeem muab taukev fij los yog kev tiv thaiv galvanicrau steel.
Hlau thiab zinc muaj peev xwm sib txawv electrochemical. Thaum zinc thiab cov hlau raug txuas nrog nyob rau hauv lub xub ntiag ntawm electrolyte, zinc tuaj yeem nyiam koom nrog cov tshuaj tiv thaiv corrosion.
Qhov no txhais tau hais tias yog ib cheeb tsam me me ntawm cov hlau hauv qab yuav raug, cov zinc nyob ib puag ncig -cov txheej txheem tuaj yeem pab muab kev tiv thaiv electrochemical rau thaj tsam ntawm cov hlau raug.
Qhov no mechanism yog txawv los ntawm ib tug ntshiab barrier txheej.
Ib txheej txheej thaiv feem ntau sim tiv thaiv dej, oxygen, ntsev, thiab lwm yam kab mob corrosive los ntawm kev ncav cuag cov hlau. Zinc- muaj cov txheej txheem hlau tuaj yeem muab cov txheej txheem tiv thaiv electrochemical ntxiv.
Yuav ua li cas yog tias cov txheej txheej hauv zos puas?
Ib qho chaw khawb, qhov pore, lossis qhov chaw puas tuaj yeem nthuav tawm cov hlau substrate.
Nrog zinc- muaj txheej txheej, zinc tuaj yeem ua cov khoom siv txiab raws li cov khoom siv hluav taws xob tsim nyog. Es tsis txhob cia siab rau ib qho kev thaiv tsis zoo, lub txheej tuaj yeem txuas ntxiv muab kev tiv thaiv cathodic rau cov hlau raug.
Txawm li cas los xij, qhov no tsis txhais tau tias txhua qhov loj lossis hom kev puas tsuaj yuav raug tiv thaiv.
Qhov ua tau zoo ntawm kev tiv thaiv kev txi yog nyob ntawm yam xws li:
Txheej txheej
Hluav taws xob txuas ntxiv
Qhov loj thiab geometry ntawm thaj chaw raug
Electrolyte muaj nyob
Ib puag ncig tej yam kev mob
Txheej xwm txheej
Qib ntawm txheej txheej puas
Yog li ntawd, kev tiv thaiv kev txi yuav tsum raug suav hais tias yog ib feem ntawm cov txheej txheem txheej txheej es tsis yog kev hloov pauv tsis txwv rau kev siv txheej txheej.
Lub luag haujlwm ntawm Aluminium Ua Si?
Aluminium hloov cov txheej txheem electrochemical thiab lub cev ntawm zinc-raws li txheej.
Hauv Zn-Al thermal spray coatings, txhuas koom nrog hauv cov txheej txheem hlau thiab cuam tshuam li cas cov txheej txheej txheej txheem coj mus rau ib puag ncig.
Aluminium- muaj cov chaw tuaj yeem txhim kho cov khoom siv corrosion ruaj khov nyob rau hauv cov xwm txheej tsim nyog. Cov ntsiab lus ntawm txhuas kuj hloov cov txheej txheem tag nrho corrosion piv nrog cov khoom lag luam ntshiab zinc.
Qhov no yog vim li cas sib txawv Zn-Al compositions yog siv rau txawv engineering xav tau.
Piv txwv li,Zn85Al15, Zn90Al10, thiab Zn95Al5muaj sib txawv proportions ntawm zinc thiab txhuas. Qhov sib txawv ntawm qhov muaj pes tsawg leeg tuaj yeem cuam tshuam rau kev coj tus cwj pwm ntawm txheej txheej thiab yuav tsum tau txiav txim siab ua ke nrog rau kev thov ib puag ncig thiab cov kev xav tau ntawm qhov project.
Rau kev sib piv qib ncaj qha, saib [Zn85Al15 vs Zn95Al5] thiab [Zn90Al10 vs Zn85Al15 vs Zn95Al5].
Zinc vs Aluminium: Lawv cov txheej txheem tiv thaiv txawv li cas?
| Cheebtsam | Kev pab cuam loj | Qhov cuam tshuam rau kev tiv thaiv steel |
|---|---|---|
| Zinc | Sacrificial electrochemical tiv thaiv | Pab tiv thaiv raug cov hlau nyob rau hauv cov kev mob tsim nyog |
| Aluminium | Influences nto chemistry thiab tus cwj pwm corrosion | Pab txhawb rau tag nrho corrosion kuj ntawm Zn-Al txheej |
| Zn-Al ua ke | Combined metallic txheej system | Muab ob qho tib si barrier thiab electrochemical tiv thaiv mechanisms |
Tus cwj pwm tiag tiag ntawm Zn-Al txheej yog nyob ntawm nws cov khoom thiab cov kev pabcuam. Yog li ntawd, nws yuav tsum tsis txhob txo qis rau cov lus hais tias "ntau dua txhuas ib txwm txhais tau tias kev tiv thaiv corrosion zoo dua."
Qhov tsim nyog muaj pes tsawg leeg yuav tsum raug xaiv raws li cov txheej txheem txheej txheem, daim ntawv thov, ib puag ncig, thiab qhov project yuav tsum tau ua.
Lub Txheej Txheem Tiv Thaiv Cov Hlau Hlau Li Cas?
Kev tiv thaiv ntawm cov hlau raug tuaj yeem nkag siab los ntawm ob qho kev cuam tshuam.
1. Kev Tiv Thaiv Kev Tiv Thaiv
Lub deposited metallic txheej tsim ib lub cev sib cais ntawm cov hlau thiab ib puag ncig ib puag ncig.
Qhov no tuaj yeem txo qhov cuam tshuam ncaj qha ntawm substrate rau:
Moisture
Oxygen
Chloride- muaj ib puag ncig
Cov kab mob muaj kab mob
Lwm hom corrosive
Qhov kev ua tau zoo ntawm qhov thaiv yog nyob ntawm cov qauv txheej txheej thiab daim ntawv thov zoo.
2. Kev tiv thaiv kev txi
Yog tias cov hlau ua rau hauv zos raug, zinc hauv txheej tuaj yeem muab kev tiv thaiv galvanic nyob rau hauv cov xwm txheej tsim nyog.
Qhov no yog ib qho ntawm qhov sib txawv tseem ceeb ntawm zinc-muaj cov txheej txheem hlau thiab cov khoom thaiv tsis pub dawb-raws li kev tiv thaiv.
Ob lub tshuab tuaj yeem ua haujlwm ua ke thaum ua haujlwm.
Qhov Ib puag ncig twg xav tau Zn-Al Coatings?
Zn-Al thermal spray coatings raug txiav txim siab rau cov qauv steel qhov twg ntev - lub sij hawm raug rau corrosive ib puag ncig yog ib qho tseem ceeb xav txog kev tsim.
Cov ntawv thov ib txwm muaj xws li:
| Ib puag ncig / qauv | Tej yam kev txhawj xeeb corrosion | Vim li cas Zn-Al thermal spray yuav raug txiav txim siab |
|---|---|---|
| Cov choj | Atmospheric noo noo, deicing ntsev, pa phem | Hlau corrosion{0}}kev tiv thaiv rau cov hlau raug |
| Marine structures | Kev raug ntsev thiab chloride | Haum rau kev xav tau ib puag ncig marine thaum tau teev tseg kom raug |
| Offshore qauv | Marine huab cua thiab ntsev raug | Siv ua ib feem ntawm corrosion-tswj tshuab |
| Chaw nres nkoj qauv | Moisture, ntsev, cyclic wetting | Muab kev tiv thaiv hlau rau cov hlau npaj |
| Steel infrastructure | Atmospheric corrosion | Yuav muab tso rau hauv ib qhov project-txheej txheej txheej |
Ib puag ncig tej yam kev mob yuav tsum raug soj ntsuam ua ntej xaiv cov txheej txheem txheej txheem thiab daim ntawv thov.
Rau cov ntawv thov marine thiab offshore, saib peb cov lus qhia ntxaws rau [zinc aluminium thermal spray txheej rau marine thiab offshore qauv].
Dab tsi cuam tshuam rau Zinc Aluminium Thermal Spray Corrosion Protection?
Cov khoom siv txheej tsuas yog ib feem ntawm qhov kawg corrosion-kev tiv thaiv.
1. Alloy Composition
Zn-Al muaj pes tsawg leeg cuam tshuam rau cov txheej txheem corrosion.
Commonly teev muaj xws li:
Zn95Al5
Zn90Al10
Zn85Al15
Qib tsim nyog nyob ntawm qhov project specification thiab cov kev pab cuam.
2. Kev npaj nto
Cov hlau substrate ib txwm xav tau kev npaj tsim nyog ua ntej thermal txau.
Deg mob cuam tshuam rau txheej adhesion thiab cov txheej txheem txheej txheej.
Cov ntsiab lus tseem ceeb suav nrog:
Kev tshem tawm cov kab mob
Tshem tawm cov txheej txheej tsis zoo
Tsim nyog nto roughness
Ntxuav thiab npaj cov hlau kom zoo
3. Thermal Spray txheej txheem
Arc spray thiab nplaim nplaim siv cov khoom sib txawv thiab cov txheej txheem txheej txheem.
Cov txheej txheem xaiv tuaj yeem cuam tshuam cov yam ntxwv ntawm kev tso nyiaj, kev tsim khoom, thiab txheej txheej txheej.
Yog li cov txheej txheem yuav tsum tau sib phim nrog:
Hlau txoj kab uas hla
Cov khoom siv cua sov
Yuav tsum tau txheej specification
Substrate geometry
Cov xwm txheej ntawm qhov project
4. Txheej Thickness
Txheej thickness yog ib qhov project - tshwj xeeb parameter.
Ib txheej txheej tuab tsis tuaj yeem tsim nyog hauv txhua qhov xwm txheej. Lub thickness yuav tsum tau tsim raws li qhov project specification, raug ib puag ncig, substrate, daim ntawv thov txheej txheem, thiab xav tau kev pab cuam.
5. Txheej Porosity thiab cov qauv
Thermal spray coatings muaj ib tug deposited qauv uas muaj peev xwm muaj xws li pores los yog discontinuities.
Cov txheej txheem txheej cuam tshuam qhov yooj yim ib puag ncig hom tuaj yeem ncav cuag lub substrate.
Daim ntawv thov tsis yog li ntawd tseem ceeb nrog rau cov nominal alloy muaj pes tsawg leeg.
6. Kev sib khi
Nyob ntawm cov txheej txheem txheej txheej thiab qhov yuav tsum tau ua, lub sealer tuaj yeem siv rau saum cov txheej txheej thermal.
Kev sib khi tuaj yeem pab txo txoj hauv kev los ntawm cov txheej txheem txheej txheej thiab feem ntau xav txog thaum yuav tsum muaj kev tiv thaiv ntxiv.
Seb sealing yog tsim nyog nyob ntawm cov txheej txheem txheej txheej thiab kev pabcuam ib puag ncig.
Cov txheej txheem txheej txheem cuam tshuam li cas rau kev tiv thaiv corrosion?
Zn-Al txheej yuav tsum tau kho raws li aqhov system, tsis tsuas yog raws li cov khoom siv hlau.
Lub tswv yim txheej tsim xav txog:
Alloy qib + hlau txoj kab uas hla + txheej txheej txheej + tshuaj tsuag txheej + txheej thickness + txheej txheej + xaiv sealing + kev pabcuam ib puag ncig
Hloov ib yam tuaj yeem cuam tshuam qhov kev xav tau rau lwm tus.
Piv txwv li, cov txheej txheem txheej txheem rau tus choj yuav muaj cov kev xav tau sib txawv ntawm ib qho kev npaj rau cov qauv sab nrauv, txawm tias ob leeg siv Zn-Al thermal spray.
Qhov no yog vim li cas engineers yuav tsum tsis txhob xaiv ib tug hlau qib ntawm nws tus kheej los ntawm tag nrho cov txheej txheem specification.
Zn-Al Thermal Spray vs Conventional Barrier Coatings
Zn-Al thermal spray txawv ntawm cov txheej txheem organic thaiv txheej hauv nws cov txheej txheem tiv thaiv yooj yim.
| Yam ntxwv | Zn-Al Thermal Spray | Conventional Barrier Txheej |
|---|---|---|
| Txheej khoom | Hlau Zn-Al | Feem ntau polymeric/organic |
| Barrier effect | Yog lawm | Yog lawm |
| Kev tiv thaiv kev txi | Zinc tuaj yeem muab tau | Feem ntau tsis yog thawj mechanism |
| Daim ntawv thov | Thermal spray txheej txheem | Ua kua los yog lwm yam txheej txheem txheej |
| Kev npaj nto | Tseem ceeb | Tseem ceeb |
| Kev xaiv qhov sib xyaw | Zn-Al qib | Txheej txheej formulation/system |
| Kev sib khi | Tej zaum yuav tau teev tseg | Nyob ntawm txheej txheej txheej |
Qhov kev sib piv no tsis tau txhais hais tias ib txheej txheej txheej txheem yog universally haum rau txhua tus qauv steel. Cov kev qhia tshwj xeeb ntawm qhov project, ib puag ncig raug, kev siv cov kev cai, thiab kev saib xyuas yuav tsum raug soj ntsuam.
Cov Kws Ua Haujlwm Yuav Tsum Ua Li Cas Ua Ntej Xaiv Zn -Al Txheej?
Daim ntawv txheeb xyuas engineering suav nrog:
Steel substrate:Hom thiab yam ntxwv ntawm cov hlau yuav coated li cas?
Ib puag ncig:Atmospheric, marine, offshore, industrial, los yog lwm yam raug?
Alloy qib:Zn-Al muaj pes tsawg leeg tau teev tseg?
Hlau txoj kab uas hla:Puas yog nws sib haum nrog cov khoom siv thermal spray?
Kev thov txheej txheem:Arc spray los yog nplaim hluav taws?
Kev npaj deg:Txoj kev npaj thiab qhov chaw saum npoo yuav tsum tau ua li cas?
Txheej thickness:Qhov project specification xav tau dab tsi?
Sealing:Puas yog lub sealer muaj nyob rau hauv txheej txheej?
Kev tshuaj xyuas:Cov txheej txheem dab tsi - yuav tsum tau kuaj xyuas zoo?
Cov ntaub ntawv:Cov ntaub ntawv twg thiab cov ntaub ntawv tshuaj xyuas dab tsi xav tau rau kev yuav khoom?
Cov kev txwv no yuav tsum tau lees paub ua ntej muab qhov kev txiav txim ntau.
Yuav ua li cas cov neeg yuav khoom txuas cov txheej txheem txheej txheem nrog hlau Specifications?
Rau kev yuav khoom, cov xaim yuav tsum tau teev tseg raws li cov txheej txheem thermal tsuag tiag tiag es tsis yog xaj los ntawm cov lus dav dav "zinc aluminium hlau."
Ib qho RFQ tuaj yeem txheeb xyuas:
Zn-Al alloy qib
Aluminium cov ntsiab lus los yog muaj pes tsawg leeg
Hlau txoj kab uas hla
Yuav tsum muaj kom muaj nuj nqis
txheej txheem thov
Cov khoom siv tshuaj tsuag cua sov, yog tias tsim nyog
Ntim cov cai
Yuav tsum tau kuaj xyuas lossis cov ntaub ntawv pov thawj
Kev xa khoom xa tuaj
Rau kev yuav khoom -cov lus qhia tshwj xeeb, saib[Zinc Aluminium Wire Procurement Guide: Qib, Diameter, Ntim thiab Cov Ntaub Ntawv].
Ntsiab Cai
Zinc aluminium thermal spray tiv thaiv corrosioncombines thaiv kev tiv thaiv nrog rau kev txi ntawm zinc.
Zinc tuaj yeem muab kev tiv thaiv galvanic rau cov hlau raug nyob rau hauv cov txheej txheem electrochemical.
Aluminium hloov cov txheej txheej saum npoo thiab tus cwj pwm corrosion hauv Zn-Al alloy system.
Kev npaj nto, txheej txheem thermal spray, txheej thickness, txheej txheej, thiab ib puag ncig raug cuam tshuam rau txheej txheej.
Zn-Al-qib xaiv yuav tsum tau txuas nrog rau qhov project specification es tsis yog kho raws li ib tug standalone cov ntaub ntawv txiav txim.
Cov kws tsim khoom thiab cov neeg yuav khoom yuav tsum qhia ob qho tib sihlau yam ntxwvthiab covthermal spray daim ntawv thov yuav tsum.
FAQ
1. zinc aluminium thermal spray tiv thaiv steel li cas?
Zinc aluminium thermal spray tiv thaiv hlau los ntawm kev sib xyaw ntawm cov hlau thaiv kev tiv thaiv thiab kev tiv thaiv hluav taws xob tua hluav taws. Zinc tuaj yeem nyiam corrode thiab pab tiv thaiv cov hlau tsis zoo nyob rau hauv ib puag ncig zoo, thaum cov txheej txheej tso tawm cais cov hlau los ntawm ib puag ncig ib puag ncig.
2. Cov txheej txheem tiv thaiv cov hlau tsis zoo li cas?
Thaum cov hlau nyob hauv cheeb tsam raug los ntawm cov txheej txheej puas tsuaj, zinc nyob rau hauv ib puag ncig txheej tuaj yeem muab kev tiv thaiv kev txi yog tias tsim nyog cov khoom siv hluav taws xob thiab electrolyte muaj nyob. Qhov kev ua tau zoo nyob ntawm qhov loj ntawm thaj chaw raug, txheej txheej, ib puag ncig, thiab alloy muaj pes tsawg leeg.
3. Lub luag haujlwm ntawm zinc ua haujlwm hauv kev tiv thaiv corrosion?
Zinc tuaj yeem ua raws li cov hlau fij rau cov hlau. Vim tias zinc tuaj yeem nyiam koom nrog cov tshuaj tiv thaiv corrosion, nws tuaj yeem muab kev tiv thaiv cathodic rau cov hlau raug thaum muaj qhov xav tau electrochemical.
4. Dab tsi yog lub luag haujlwm ntawm txhuas ua hauv Zn-Al coatings?
Aluminium hloov cov alloy tus cwj pwm corrosion thiab deg yam ntxwv. Hauv Zn-Al thermal spray txheej, txhuas ua haujlwm ua ib feem ntawm cov txheej txheem alloy es tsis ua haujlwm raws li cov txheej txheem tiv thaiv ib leeg.
5. Qhov chaw twg yuav tsum tau Zn-Al coatings?
Zn-Al thermal spray coatings tuaj yeem txiav txim siab rau cov qauv hlau uas raug corrosive ib puag ncig xws li marine, offshore, chaw nres nkoj, choj, thiab huab cua huab cua. Qhov tseeb txheej txheej yuav tsum tau tsim raws li qhov project ib puag ncig thiab engineering xav tau.
6. Dab tsi cuam tshuam rau Zn-Al thermal spray txheej kev ua tau zoo?
Cov yam tseem ceeb muaj xws li alloy muaj pes tsawg leeg, kev npaj nto, hlau txoj kab uas hla, thermal spray txheej txheem, txheej thickness, txheej txheej, sealing, substrate condition, thiab kev pab cuam ib puag ncig. Kev xaiv cov khoom ib leeg tsis txiav txim siab qhov ua tau zoo ntawm cov txheej txheem ua tiav.
Sib tham txog koj Zn-Al Coating Requirements
Yog tias koj tab tom teev cov zinc txhuas hlau rau choj hlau, cov qauv hauv hiav txwv, cov haujlwm sab nrauv, lossis lwm yam kev tiv thaiv kev tiv thaiv, muab cov qib alloy uas xav tau, txoj kab uas hla, daim ntawv thov txheej txheem, kom muaj nuj nqis, thiab qhov yuav tsum tau ua.
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Thov qhov tsim nyog zinc aluminium hlau specifications rau koj daim ntawv thov thermal spray.