Cov hlau tsis xeb yog ib yam khoom siv zoo kawg nkaus uas ua lub luag haujlwm tseem ceeb hauv ntau yam lag luam, ua tsaug rau nws cov yam ntxwv tshwj xeeb thiab kev ua tau zoo tsis sib xws. Tab sis koj puas paub tias muaj ib qho zais cia rau kev tswj hwm nws cov kev ua tau zoo thiab lub neej ntev? Qhov zais cia no nyob hauv cov txheej txheem hu ua passivation.

Kev Taw Qhia Txog Cov Hlau Stainless

Kev nkag siab txog lub hwj chim ntawm kev ua kom tsis muaj zog pib nrog kev txaus siab rau cov hauv paus ntawm cov hlau tsis xeb nws tus kheej. Cov hlau tsis xeb tsis yog ib yam khoom yooj yim xwb;

nws yog ib qho hlau ua los ntawm hlau, carbon, thiab ntau yam chromium.

Dab Tsi Ua Rau Cov Hlau Stainless Tshwj Xeeb

Tus neeg ua si tseem ceeb hauv zaj dab neeg hlau stainless yog chromium. Thaum raug oxygen, chromium tsim ib txheej nyias nyias, tsis pom ntawm chromium

oxide rau ntawm qhov chaw ntawm cov hlau. Cov txheej no yog passive, txhais tau tias nws tsis cuam tshuam nrog lwm yam.

1. Nkag Siab Txog Kev Tiv Thaiv Kev Xeb

Chromium oxide yog tus tim tswv saib xyuas cov hlau tsis xeb. Nws tiv thaiv xeb thiab xeb, uas yog cov teeb meem feem ntau ntawm lwm cov hlau.

Qhov kev tiv thaiv corrosion no ua rau cov hlau tsis xeb nws lub npe thiab nws siv dav.

2. Lub Luag Haujlwm ntawm Passivation hauv Stainless Steel

Tam sim no, cia peb nkag mus rau hauv lub ntsiab lus tseem ceeb - passivation. Passivation yog ib qho txheej txheem tshuaj lom neeg uas ua kom cov txheej chromium oxide uas tshwm sim ntuj tsim zoo dua.

Qhov no ua rau cov hlau tiv taus xeb thiab corrosion ntau dua.

3. Kev Tshawb Fawb Tom Qab Kev Ua Kom Tsis Muaj Zog

Thaum lub sijhawm passivation, cov hlau tsis xeb raug kho nrog cov kua qaub me me. Qhov no tshem tawm cov hlau dawb thiab lwm yam khoom tsis huv ntawm qhov chaw,

uas yuav muaj peev xwm cuam tshuam kev tsim ntawm cov txheej chromium oxide.

Koj puas xav paub vim li cas cov hlau tsis xeb yuav tsum tau passivate?

Thaum xub thawj, peb yuav tsum paub tias lub ntsiab lus ntawm passivation-stainless steel yog dab tsi? Kev passivation ntawm stainless hlau txhais tau tias ua rau qhov chaw ntawm stainless hlau cuam tshuam nrog tus neeg sawv cev passivation los tsim cov zaj duab xis passivation ruaj khov uas tiv thaiv cov hlau stainless substrate los ntawm xeb los ntawm oxidation thiab corrosion. Kev ua haujlwm tiv thaiv xeb ntawm stainless hlau yog qhov zoo heev. Txawm li cas los xij, nyob rau hauv thaj chaw ntug dej hiav txwv lossis nyob rau hauv kev sib cuag nrog qee cov tshuaj acid thiab alkali, cov chloride ions tsim tau yooj yim nkag mus rau hauv cov zaj duab xis passive ntawm stainless hlau. Stainless hlau yuav maj mam corrode thiab xeb dhau sijhawm. Yog li ntawd, stainless hlau yuav tsum tau passivated. Passivated stainless hlau tuaj yeem txhim kho lub hauv paus tiv thaiv xeb qub los ntawm 3-8 xyoo, txo qhov muaj feem ntawm stainless hlau xeb.

HENGKO stainless hlau sintered lim khoom muaj qhov loj me ntawm huab cua, qhov loj me ntawm lub lim dej thiab kev faib tawm sib xws; huab cua zoo permeability, kev ncig sai, kev cuam tshuam zoo, kev lim dej zoo; kev tiv thaiv corrosion zoo, kev tiv thaiv kub siab, kev tiv thaiv kub, cov khoom siv stainless hlau tuaj yeem ua haujlwm 600 ntawm qhov kub siab; qhov ntev ntawm lub raj lim dej zoo tuaj yeem ncav cuag 800mm, qhov loj tshaj plaws ntawm cov qauv phaj lim tuaj yeem ncav cuag 800mm ntev * 450mm dav, thiab qhov loj tshaj plaws ntawm cov qauv lim puag ncig tuaj yeem ncav cuag 450mm. Peb kuj muab cov passivation ntawm cov khoom seem, Yog tias koj xav tau thov rau qhov kev tiv thaiv corrosion thiab xeb tiv thaiv ib puag ncig.

Cov txiaj ntsig ntawm kev ua kom tsis muaj zog

Muaj ntau yam txiaj ntsig rau kev siv cov hlau tsis xeb, txhua yam uas pab txhawb nws txoj kev ua tau zoo thiab lub neej ntev.

Yuav ua li cas ua qhov passivation-stainless hlau?Cia peb qhia rau koj.

Vim tias ntau hom stainless hlau siv cov tshuaj passivation sib txawv, qee cov ntsiab lus yuav txawv thaum lub sijhawm passivation ntawm stainless hlau. Passivation xav tau kev cai. Txawm li cas los xij, cov txheej txheem yooj yim feem ntau muaj cov kauj ruam zoo ib yam: Xyuas kom meej tias qhov chaw ntawm qhov chaw huv. Tsuas yog thaum lub substrate raug nthuav tawm nws thiaj li passivated zoo dua. Muab ib lossis ntau qhov chaw kom passivated rau hauv lub thawv. Ncuav cov kua tshuaj rau hauv lub thawv thiab cia cov khoom ntub rau ib lub sijhawm. Ntxuav nrog dej ntws. Xyuas kom meej tias qhov chaw ntawm qhov chaw huv thiab tsis muaj cov kua passivation seem.

Kev ua kom cov kua qaub nitric acid tsis ua haujlwmyog ib qho ntawm cov thev naus laus zis passivation yooj yim tam sim no. Ua ntej xaiv cov thev naus laus zis passivation, peb yuav tsum paub cov tshuaj lom neeg uas xav tau rau cov tshuaj tiv thaiv passivation ntawm cov hlau tsis xeb kom tsis txhob siv cov tshuaj tsis raug uas ua rau puas tsuaj rau cov khoom. Thiab tib lub sijhawm xaiv cov thev naus laus zis passivation cuam tshuam raws li cov yam ntxwv ntawm cov hlau tsis xeb sib txawv. Piv txwv li, cov ntsiab lus chromium ntawm cov hlau tsis xeb austenitic (xws li 304 stainless hlau) feem ntau siab dua li cov hlau tsis xeb martensitic (xws li 430 stainless hlau), ua rau cov hlau austenitic tiv taus corrosion thiab pitting ntau dua.

Ua ntej passivation ntawm cov khoom siv hlau tsis xeb, cov ntsiab lus hauv qab no yuav tsum tau xav txog:

Tej zaum cov vuam yuav tsis haum rau kev passivation. Cov zaj duab xis passive ntawm qhov chaw ntawm cov hlau tsis xeb ua rau nws tiv taus xeb. Arc vuam yuav ua rau cov khoom siv rau lub sijhawm luv luv ntawm qhov kub siab thermal cycling, yog li ua rau nws puas tsuaj rau nws qhov kev tiv thaiv corrosion.

Yuav tsum muaj ib lub dab da dej tshuaj lom neeg raws li koj xav tau. Qhov kub thiab hom kua qaub uas siv rau hauv cov txheej txheem passivation yuav tsum tau kho raws li cov hlau uas raug passivated. Qhov no ntxiv tus nqi thiab qhov nyuaj piv rau electropolishing. Qee cov hlau tsis tuaj yeem passivated. Piv txwv li, qee cov hlau tsis xeb uas muaj cov chromium thiab nickel tsawg yuav raug rhuav tshem. Yog li ntawd, lawv tsis tuaj yeem passivated.

Qhov zoo tshaj plaws ntawm kev siv stainless hlau passivation yog tias nws tuaj yeem txhim kho qhov tsis kam ntawm cov khoom stainless hlau, thiab tus nqi qis dua li ntawm electropolishing. Qhov tsis zoo tshaj plaws ntawm cov txheej txheem electropolishing yog tias nws kim dua li cov txheej txheem passivation txheem. Tsis tas li ntawd, electropolishing tsis muaj qhov cuam tshuam loj rau cov txheej txheem oxide tiv thaiv ntawm cov hlau zoo li passivation.

Txawm li cas los xij, thaum tham txog qhov xwm txheej ntawm qhov chaw, electropolishing tseem yog qhov kev kho mob zoo tshaj plaws. Passivation tsis zoo li electropolishing kom ua rau qhov chaw ntawm qhov chaw du, nws kuj tsis hloov pauv qhov zoo li cas ntawm qhov chaw. Yog li ntawd, passivation tsis yog txoj hauv kev zoo tshaj plaws yog tias cov khoom xav tau qhov chaw du thiab tsis lo. Cov lag luam zaub mov thiab tshuaj feem ntau siv cov hlau stainless hlau electro-polished vim tias qhov chaw du thiab yooj yim ntxuav thiab tua kab mob.

Cov Lus Nug Feem Ntau

1. Kev ua kom tsis muaj zog yog dab tsi?

Passivation yog ib qho txheej txheem tshuaj lom neeg uas ua kom cov txheej chromium oxide uas tshwm sim ntuj tsim.

ntawm cov hlau tsis xeb, yog li ua rau nws tsis kam rau xeb thiab corrosion.

2. Kev ua kom tsis muaj zog ua haujlwm li cas?

Thaum lub sijhawm passivation, cov hlau stainless raug kho nrog cov kua qaub me me kom tshem tawm

cov pa phem ntawm qhov chaw. Tom qab ntawd yaug thiab ziab, thiab cov chromium ua rau huab cua sib xyaw ua ke los tsim ib txheej chromium oxide tshiab uas muaj zog dua.

3. Vim li cas passivation thiaj tseem ceeb rau cov hlau tsis xeb?

Passivation yog qhov tseem ceeb rau cov hlau tsis xeb vim nws ua rau cov khoom siv tiv taus corrosion ntau dua, ua rau nws lub neej ntev dua,

thiab khaws nws qhov kev nyiam aesthetic.

4. Yuav tsum tau ua kom cov hlau tsis xeb tsis xeb ntau npaum li cas?

Qhov zaus ntawm passivation nyob ntawm qhov kev ua haujlwm ntawm cov khoom stainless hlau. Hauv corrosive ntau dua

ib puag ncig lossis qhov twg cov khoom raug kov tas li, tej zaum yuav tsim nyog ua kom tsis tu ncua.

5. Puas yog passivation cuam tshuam rau qhov tsos ntawm cov hlau tsis xeb?

Yog, passivation pab tswj kom cov hlau stainless hlau ci ntsa iab thiab huv si los ntawm kev tiv thaiv xeb thiab xeb.

6. Puas yog txhua yam khoom siv hlau tsis xeb tuaj yeem raug passivated?

Yog, txhua yam khoom siv hlau tsis xeb tuaj yeem raug passivated. Txawm li cas los xij, qhov xav tau passivation yuav nyob ntawm seb

cov xwm txheej ua haujlwm ntawm cov khoom.

7. Kev kho kom tsis muaj xeb puas yog ib qho txheej txheem kim heev?

Txawm hais tias muaj cov nqi koom nrog hauv passivation, nws feem ntau suav tias yog tus nqi tsim nyog muab qhov kev tiv thaiv

nws muab rau cov hlau tsis xeb thiab qhov txuas ntxiv ntawm nws lub neej.

8. Yuav ua li cas yog tias cov hlau tsis xeb tsis tau passivated?

Yog tias cov hlau tsis xeb tsis raug passivated, nws yuav yooj yim rau xeb, uas yuav ua rau lub sijhawm luv dua

lub neej ntev thiab txo qis qhov zoo nkauj.

9. Puas yog passivation ua rau cov hlau tsis xeb muaj zog dua?

Kev siv passivation tsis tas yuav ua rau cov hlau stainless muaj zog dua. Nws ua rau nws ruaj khov dua los ntawm kev txhim kho nws txoj kev tiv thaiv corrosion.

10. Kuv puas ua tau passivation hauv tsev?

Kev siv Passivation yuav tsum tau ua los ntawm cov kws tshaj lij uas tau kawm tiav los xyuas kom meej tias cov txheej txheem tau ua tiav kom raug thiab muaj kev nyab xeeb.

Xav tau cov ntaub ntawv ntxiv? Peb nyob ntawm no los pab!

Kev nkag siab txog qhov nyuaj ntawm cov hlau tsis xeb sintered thiab cov txheej txheem passivation tuaj yeem ua rau neeg tsis nkag siab.

Yog tias koj xav txhim kho kev ua tau zoo thiab lub neej ntev ntawm koj cov khoom siv hlau tsis xeb lossis nrhiav qhov zoo tagnrho

OEM tshwj xeeb sintered hlau lim rau koj lub tshuab lim dej, peb pab neeg nyob ntawm no los coj koj.

Tiv tauj peb ntawm HENGKO, thiab cia peb qhib tag nrho lub peev xwm ntawm koj lub tshuab ua ke. Tiv tauj peb ntawm email

at ka@hengko.com, thiab peb pab neeg paub txog yuav zoo siab pab koj nrog koj cov lus nug.

Koj txoj kev mus rau lub tshuab lim dej zoo tshaj plaws tsuas yog xa email xwb. Tsis txhob tos. Tiv tauj peb hnub no!