Stainless Hlau Hlau Mesh tau dav siv thoob plaws pom, kev tsim kho, roj thiab cov roj ua tau zoo li qub los ntawm nws cov khoom siv. Ntawm cov ntsiab lus uas ua rau cov hlau tsis muaj hlau,Chromium (cr), npib tsib xee (ni), thiab molybdenum (mo)yog peb peb feem cuam tshuam rau corrosion ua rau corrosion tsis kam, lub zog ua zog, kub {{{}} lub sij hawm ruaj khov.
Nkag siab txog cov luag haujlwm tshwj xeeb ntawm cov ntsiab lus alloy no pab engineers, cov neeg yuav khoom, thiab cov phiaj xwm phiaj xwm tau xaiv ntau dua, tshwj xeeb thaum xaiv cov qib zoo xws li304 thiab 316 Stainless hlauCov. Cov ntawv no tshawb xyuas txhua qhov kev ua haujlwm ntawm tus kheej ua haujlwm, ua li cas lawv sib cuam tshuam no txhais tau li cas rau kev ua tau zoo ntawm stainless hlau hlau nyob rau hauv kev sib txawv ib puag ncig.
Chromium: lub hauv paus ntawm corrosion tsis kam
Chromium yog lub ntsiab lus txhais uas hloov cov hlau zoo nkauj rau hauv cov hlau tsis huv. Nws ua qhov tshwj xeeb, pom, tus kheej -}} Kho cov yeeb yaj kiab passive uas tiv thaiv lub mesh los ntawm xeb thiab oxidation.
Yuav ua li cas cov ntaub ntawv chromium cov txheej txheem passive
Thaum chromium cov ntsiab lus tshaj10.5%, nws reacts nrog oxygen los ua achromium oxide passive txheej (crreen).
Txheej no:
● blocks oxygen diffusion
Kho nws tus kheej kom zoo thaum kos
● Txhim kho kom zoo heev corrosion
Yog tsis muaj chromium, stainless hlau hlau hlau yuav coj zoo li cov pa roj carbon hlau {}} rowing sai sai thaum muaj cua thiab ya raws.
Cov qib chromium hauv cov khoom siv tsis sib xws
| Hom Ntswg Stainless Hlau | Chromium cov ntsiab lus | Corrosion Kuj Qib | Sau ntawv |
|---|---|---|---|
| 304 | 18–20% | Siab | Txheem Mesh rau kev siv dav dav |
| 316 | 16–18% | Siab heev | Txhim kho los ntawm mo + ni |
| 430 | 16–18% | Tswj kav | Tsis muaj npib tsib xee → Cov qis tsis kam |
Chromium tseem yog tustseem ceebTeeb meem tiv thaiv xeb. Txawm hais tias lwm cov khoom siv hluav taws xob yog tam sim no, tsis txaus chromium drastically txo mesh detability.
Cov nyhuv ntawm chromium rau cov cua sov thiab oxidation tsis kam
Ntau cov qib chromium ntau dua kuj txhim kho:
● Kev kub siab -} kub teev ntsuas tsis kam
● Kev ua tau zoo hauv tshav kub -} pom pom tseeb
● Kev ntev hauv Harsh urosphere Furnaces
This is why furnace conveyor mesh belts often prefer alloy types with >20% chromium.
Tshaj kev tiv thaiv corrosion, chromium tseem tseem ceeb hauv kev txiav txim siab seb tus kav hlau hlau coj tus cwj pwm uas cuam tshuam nrog kev cog lus kub, lossis sib quas ntus ua rau oxidizing tshuaj. Chromium lub peev xwm los ua ib txheej oxide ua ke tsis zoo tab sis kuj yog qhov muaj txiaj ntsig zoo rau hauv cov ntawv qhia txog kev siv hluav taws xob rau hauv methofurgy lossis ceramics tsim. Ib qho ntxiv, cov ntsiab lus chromium cuam tshuam weldability weld corrosion thiab cov thawj coj hauv zos thiab cov khoom siv tsis zoo. Stainless hlau nrog siab dua cov chromium siab dua tswj lub suab du zoo dua lub sijhawm, uas yog qhov tseem ceeb rau kev ua kom pom zoo. Lub durability ntawm cov chromium oxide txheej txhais tau tias txawm hais tias muaj kev tiv thaiv huab cua sai sai, ua kom muaj kev kub ntxhov sai sai, ua kom muaj kev ruaj khov. Cov cuab yeej no ua rau chromium - rab alloys tseem ceeb heev thaum cov leeg hlau yuav muaj kev coj ob zaug thiab kev ua kom huv si ib txhij.
Nickel: Txhim Kho Kev Taug Kev thiab Tshuaj Muaj Zog
Nickel nce kev ua qauv, tawv, thiab tshuaj lom neeg tiv thaiv {{}}} - kev nplua nuj ib puag ncig.
Nickel lub luag haujlwm hauv kev txhim kho cov khoom siv tawv tawv
Nickel ruaj khov cov qauv Austenic ntawm stainless hlau.
Cov txiaj ntsig muaj xws li:
Yooj yim thaum nws
●● Muaj kev cuam tshuam tsis kam
● Cov kev ua tau zoo ntawm tsawg kub
Txo txo kev pheej hmoo ntawm kev tawg nyob rau hauv kev ntxhov siab
Hlau Mesh xav tau nplua kev zoo los yog sib sib zog nqus kev cia siab nyob rau Nickel -}}} nws muaj alloys zoo li 304 thiab 316.
Npib tsib xee thiab acid / alkali tsis kam
Nickel tseem ua rau:
● Sulfuric acid
● phosphoric acid
● Alkaline cov kev daws teeb meem
● Khoom noj kua qaub (acetic, citric)
Nov yog qhov tseem ceeb hauv:
● Chav ua noj lub dab dej tsis sib haum
● Cov lim khoom noj khoom haus
● Tshuaj lom neeg siv kua mis meshes
Yog tsis muaj npib tsib xee, stainless hlau yuav dhau nkig thiab tsawg corrosion - tiv taus.
Nickel cov ntsiab lus piv tawm thoob plaws stainless hlau qib
| Hlau | Cov ntsiab lus npib tsib xee | Tshuaj lom neeg corrosion tsis kam | Raug Siv Siv |
|---|---|---|---|
| 304 | 8–10.5% | Siab | Kev Pom Kev Tsim Kho General, Kev Tsim Kho, Chav Ua Noj |
| 316 | 10–14% | Siab heev | Tubrog marine, tshuaj tsuag siv, ntsev {{{}}} Kev thov nplua nuj |
| 201 | 3.5–5.5% | Tswj kav | Tsawg - tus nqi tsis - tseem ceeb mesh |
Nickel yog tus nqi siv tus nqi - dua cov npib siab dua txhais tau tias yog cov khoom siv siab dua mesh.
Nickel lub zog ua kom muaj zog tau ua rau ntau qhov tseem ceeb thaum stainless hlau hlau hlau yog siv hauv cov tshuaj uas siv tau rau hauv cov tshuaj uas siv tau rau hauv cov tshuaj uas siv rau hauv cov roj captectical, precision sieving, lossis roj roj ua kom huv. Cov meseses yuav tsum muaj cov flawless ductility kom tsis txhob tawg thaum tab tom tab kaum, kos duab, thiab sib sau ua ke. Nickel tseem tso cov qauv kev ua kom sov thaum lub sijhawm ua kom sov siab, uas muaj cov khoom siv hu ua ke, thiab ua kom muaj cov khoom noj ntev dua hauv cov khoom siv Nyob rau hauv cov txheej txheem cuam tshuam nrog cov kua qaub me me, alkalis, lossis hom tsis muaj txiaj ntsig, cov qib tsis muaj txiaj ntsig zoo rau cov qhab nia hauv ob qho tib si. Nickel tseem cuam tshuam saum npoo du thiab policabability, ua rau cov chaw mesh kom huv si hauv cov ntawv thov huv huv. Zuag qhia tag nrho, muaj cov Nickel muab cov nyiaj sib npaug: kev siv tshuab nyuaj, xeb kuj, thiab cov txheej txheem kev ntseeg siab thoob plaws ib puag ncig. Cov txiaj ntsig zoo ua rau nickel {13} rich rich stainless cov hlau uas xav tau kev xaiv rau kev lag luam kom ob qho tib si kev ua tau zoo thiab meej.
Molybdenum: Tus yuam sij rau Superior corrosion thiab Crevice Corrosion Kuj
Molybdenum zoo heev txhim kho kev ua tau zoo hauv ib puag ncig muajtus kab chlorides, ntsev, thiab tshuaj lom neeg.
Vim li cas Molybdenum txhawb corrosion tsis kam
Mo ntxiv dag zog rau cov roj chrromium passive olomium oxide txheej, ua rau nws ntau tiv taus chloride kev tawm tsam.
Cov txiaj ntsig muaj xws li:
● Zoo heev raukev dai
● Muaj kev tiv thaiv muaj zog tiv thaivCrevice corrosion
● Txhim kho kev ua tau zoo hauvdej qab ntsev
● Txhim kho durability nyob rau hauvtso acidicIb puag ncig
Vim li no316 Stainless Hlau, uas muaj 2-3% MO, yog cov nyiam tshaj plaws rau cov kev siv marine.
Kev sib piv ua tau zoo: alloys nrog thiab tsis muaj molybdenum
| Ntiag tug | 304 (No Mo) | 316 (nrog mo) |
|---|---|---|
| Sealwater tsis kam | Tswj kav | Zoo tshaj |
| Pitting resistance | Nruab nrab | Siab heev |
| Crevice corrosion | Nruab nrab | Siab heev |
| Acidity Kuj | Siab | Siab dua |
Txawm tias ib qho me me ntawm mo ua qauv hloov kho mesh ua haujlwm hauv kev hnyav ib puag ncig.
Molybdenum thiab Kev Kho Tshuab Zog
Mo kuj nce ntxiv:
● Lub zog tensile
● Kuj kub
● Cov qauv nruj
Qhov kev pab no zoo ntxaij cov ntxaij siv hauv:
● Tshuaj lom neeg ua kom pom tseeb
● Tshuaj Hmoov Kab
Wigh -} kev ua siab
Hauv chloride - perm ib puag ncig, Molybdenum lub qhov kev cuam tshuam tseem muaj ntau yam. Nws rau kev pib thiab nthuav dav ntawm pitting corrosion, ib qho kev hem thawj rau stainless hlau xees xees, lossis cov chaw ua kom pom tseeb, lossis cov chaw ib puag ncig uas raug rau txoj kev ntsev lossis cov brines muaj. Molybdenum tseem txhim kho kom txo cov kua qaub {}}}}}}}}}}}} ine all all all 4}} ated reding tshuaj, acid rov qab, thiab cov khoom siv scrubbing. Lwm qhov zoo dua yog kev txhim kho kom tsis kam lees cov corrosion, tshwj xeeb tshaj yog nyob rau thaj chaw uas cov ntxaij vab tshah, quav, lossis tswj cov dej noo tas li. Cov no feem ntau tsis muaj cov ntsiab lus tsis muaj zog hauv tsis - molybdenum alloys. Hauv cov ntsiab lus kho tshuab, molybdenum pab txhawb rau lub zog ua kom muaj zog ntawm cov chaw kub, tso cai rau cov kev siv hluav taws xob ntev txawm tias thaum muaj kev ntxhov siab. Qhov no yog qhov tseem ceeb rau cov ntxaij vab tshaus, catalyst kev txhawb nqa kev txhawb nqa, thiab siab- sov nqus lim pom. Los ntawm kev txhim kho ob qho tshuaj thiab tshuab ruaj khov, molybdenum ntseeg tau lub neej ntev ntev thiab txo cov kev txiav txim siab rau cov kev thov uas yuav tau txiav txim siab sai sai stainless hlau qib.
Yuav ua li cas chromium, npib tsib xee, thiab molybdenum sib cuam tshuam rau txhim kho mesh ua haujlwm
Stainless hlau kev ua haujlwm tsis yog hais txog ib tus neeg - nws yog hais txogcov khoom noj qab zib.
Kev cuam tshuam kev cuam tshuam
Cr + ni
→ Muaj Zog Tiab Txheej + Zas Cov Qauv
Cr + mo
→ Cov chloride zoo
Ni + mo
→ siab ruaj khov nyob rau hauv kev tawm tsam
Cov kev sib txuas lus no piav yog vim li cas 316 ua yeeb yam zoo dua 304 hauv Marine thiab kev muaj kev muaj thaj chaw.
Kwv yees kev coj tus cwj pwm corrosion raws li cov muaj pes tsawg leeg
| Huab cua | Pom zoo Alloy | Qho tseem ceeb |
|---|---|---|
| Ib txwm humidity | 304 | Txaus cr + ni |
| Ntug hiav txwv | 316 | Mo combats chloride |
| Tshuaj Nroj Tsuag | 316 | Ni + mo kev ruaj khov |
| Cov kua qaub tsis muaj zog | 304 | Zoo cr thiab ni |
| Muaj zog acids & ntsev | 316 | Zoo tshaj corrosion |
Kev ua yeeb yam ntawm stainless hlau xaim hlau mesh tsis tau kwv yees tsuas yog los ntawm kev tshuaj chromium, npib tsib xee, lossis molybdenum ywj pheej; Lawv cov kev sib cuam tshuam tsim cov kev cuam tshuam synergistic uas ua rau muaj kev cuam tshuam ntau ntawm lawv cov kev pab. Piv txwv li, cov roj chromium oxide passive txheej yuav ua rau muaj kev txhawb nqa ntau dua thaum muaj kev txhawb nqa los ntawm molyebrenum, tshwj xeeb yog nyob qhov twg pitting. Lub caij no, npib tsib xee ua kom cov qauv sib luag, ua kom lub luag haujlwm ua haujlwm thiab tawv nqaij tawv kom cov theem siab highing. Ua ke, peb lub peev xwm tsim cov alloys ntawm Enduring complex, ntau-} xws li siv tshuaj kho txhua yam, thiab hloov kho cov khoom siv kub. Qhov no yog vim li cas 316 stainless hlau tau dav siv hauv cov kws tshuaj, cov tubrog nkoj, cov txheej txheem petrochemical, thiab cov khoom siv khoom noj yuav tsum muaj kev tswj hwm nruj. Hauv qis -} Alloy alloy tshuab, qhov ploj {} Xws li kev tshuav ntawm Cr, NI, thiab MO tiag yog. Qhov kev tsim kho no yog dab tsi tso cai rau Stainless Hlau Hlau Mesh kom muaj kev pom tau tias muaj kev pom zoo siv tau, thiab tshwj xeeb corrosion tiv thaiv thoob plaws xyoo ntawm kev siv.
Cov ntawv thov uas alloy muaj pes tsawg leeg muaj feem ntau
Kev ua khoom noj thiab chav ua noj ib puag ncig
304 haum rau:
● Chav Ua Noj Ua Noj
● Cov zaub mov -} qib mesh baskets
● Cov ntxaij lim dej
316 tau nyiam thaum raug rau:
● Ntsev
Hmoov tsis
● Ntawv Citrus
● Ntxuav tshuaj
Tubrog NkojD Cov Nqis Ib puag ncig
316 Stainless hlau outperforms 304 vim molybdenum.
Cov ntawv thov suav nrog:
● Offshore pom
● Nqos siv mesh
● Cov ntxiab dej
Tshuaj thiab Kev Lag Luam Kev Lag Luam
316 Mesh yog qhov tseem ceeb rau:
● Acid / alkali Foundation
● Chaw tsim tshuaj paus
● Kev kub siab- kub tshuaj lom neeg
Tag
Chromium, npib tsib xee, thiab molybdenum txhais cov corrosion resistance, lub zog, thiab durability ntawm stainless hlau hlau mesh. Chromium ua lub hauv paus ntawm xeb tiv thaiv, Nickel txhim kho kev ua tiav thiab tshuaj lom neeg muaj kev tiv thaiv kev tawm tsam chlorides ua ntej, pitting, thiab txhoj puab heev.
Nkag siab cov ntsiab lus ntawm cov ntsiab lus tso cai rau cov neeg yuav khoom thiab xaiv cov kev txiav txim siab, tshwj xeeb yog cov kev xaiv ua ntej 304 thiab 316. Rau cov ntawv thov sab hauv tsev lossis mob hlwb, 304 tseem muaj kev lag luam thiab kev xaiv zoo.
Xaiv txoj cai mesh muaj kev sib xyaw ua kom muaj kev ua tau zoo, txo tus nqi kho mob, thiab ntev tshaj plaws thoob plaws hauv ntau yam kev lag luam.