Tsis tu ncua -kub aquaculture tso tsheb hlau luam, cov khoom noj khoom haus soaking bins, industrial circulating cooling pipelines thiab lub teeb -kev lag luam khib nyiab preheating chaw feem ntau muaj chloride ions thiab diluted qaug zog acids. Tsawg- nqi carbon steel cua sov tubs yooj yim raug kev nkag mus rau xeb thiab kua dej tom qab lub sijhawm ua haujlwm luv. Hwm los tiv thaiv-cov khoom siv hluav taws xob corrosion xws li titanium, quartz thiab PFA-cov cua sov sheathed xav tau kev nqis peev hnyav, ua rau lawv tsis tsim nyog rau kev teeb tsa loj hauv cov tuam txhab me thiab nruab nrab- loj. Raws li cov molybdenum paub tab- muaj cov hlau tsis muaj steel hlau, 316 stainless hlau cua sov raj tuav ib txoj hauj lwm tseem ceeb hauv cov pa hluav taws xob tiv thaiv- kev ua lag luam cua sov. Ntau tus kws tshaj lij thiab cov neeg ua haujlwm yuav khoom tawm tsam los ntsuas nws qhov kev ua tau zoo, kev txwv tsis pub siv thiab kev ua haujlwm ntev - nqi piv nrog lwm cov khoom siv cua sov. Daim ntawv no tshuaj xyuas nws cov khoom zoo, ntawm -cov yam ntxwv ntawm qhov chaw ua haujlwm thiab qhov tsis xws luag, nrog rau cov lus sib piv ntawm plaub lub ntsiab tiv thaiv -corrosion heating Cheebtsam txuas nrog.
Lub zog sib tw ntawm 316 stainless hlau stems los ntawm ntxiv molybdenum ntsiab lus, uas zoo inhibit chloride -induced pitting corrosion - qhov tseem ceeb ua rau cua sov raj tsis ua hauj lwm nyob rau hauv ntsev - bearing aqueous ib puag ncig. Thaum lub sij hawm rov ua cua sov thiab cua txias, qhov ntom ntom chromium oxide passivation zaj duab xis txuas ntxiv ua rau ntawm phab ntsa sab nrauv, tsim kom muaj kev tiv thaiv los thaiv cov ions tsis zoo los ntawm eroding cov hlau substrate. Tsis zoo li zoo tib yam 304 stainless hlau uas sai sai tsim ntom ntom pits nyob rau hauv chloride nres, 316 stainless hlau tswj kev ncaj ncees nyob rau hauv lub sij hawm thermal shock. Nws tiv taus kev khoov mus tas li deformation thiab sealing cov kab nrib pleb, tiv thaiv cov kua infiltration thiab burnout ntawm cov xov hlau sab hauv. Tsis tas li ntawd, kev vuam paub tab, khoov thiab txiav cov txheej txheem txhawb kev kho tshwj xeeb- zoo li cov cua kub cua kom hloov mus rau qhov nqaim thiab tsis sib xws ntawm cov khoom siv ntau lawm.
Cov lus hauv qab no sib piv cov kev ua haujlwm tseem ceeb ntawm plaub los tiv thaiv -corrosion cua sov raj nyob rau hauv me me corrosive industrial ib puag ncig:
表格
| Cua sov Tube hom | Tsis muaj Acid & Chloride Resistance | Max Nruam Kev Pabcuam Kub | Cov qauv kev ruaj ntseg nyob rau hauv Thermal Cycles | Tag nrho Lifecycle Tus Nqi Ua Haujlwm |
|---|---|---|---|---|
| 316 Stainless hlau | Muaj zog tiv thaiv -pitting kev ua tau zoo | 550 degree | Zoo heev, nyuaj rau deform | Qhov zoo tshaj plaws sib npaug ntawm cov nqi thiab kev ua haujlwm |
| 304 Stainless hlau | Tsis muaj zog, nws yooj yim rau tawg pleb corrosion | 420 degree | Nruab nrab, yooj yim rau hnub nyoog thiab distort | Kev siv nyiaj ntau ntxiv |
| Ntshiab Titanium Heating Tube | Sab saum toj -tier comprehensive anti-corrosion peev | 770 degree | Ultra- ruaj khov kho tshuab | Siab heev ib - sij hawm yuav khoom tus nqi |
| Quartz cua sov Tube | Stable tsuas yog nyob rau hauv ib tug acidic nruab nrab | 1170 degree | Tsis tshua muaj zog nyob rau hauv kev sib tsoo thiab kev co | Kev hloov pauv tsis tu ncua coj cov nqi zais ntxiv |
Nyob rau hauv lub Hoobkas niaj hnub tsim, 316 stainless hlau cua sov raj xa cov txiaj ntsig kev lag luam zoo heev rau cov lag luam nruab nrog ntau cov ntsiab lus cua sov. Titanium cua sov raj ua rau hnyav ib qho - tawm ntawm kev kub ntxhov nyiaj txiag; quartz tubes raug cuam tshuam rau kev tawg thaum lub sijhawm thauj mus los, kev teeb tsa thiab kev tu niaj hnub, tsim cov nqi hloov pauv tas li. Ib txwm 304 stainless hlau raj yuav tsum tau ncua sij hawm ntau lawm rau kev soj ntsuam thiab hloov, accumulating loj heev ua hauj lwm thiab cov khoom siv nyob rau hauv lub sij hawm ntev - ua hauj lwm tas mus li. Ntawm qhov tsis sib xws, kev saib xyuas txhua hnub ntawm 316 stainless hlau cua sov raj tsuas yog yuav tsum tau yooj yim deg so, zoo heev txo cov nqi khiav hauj lwm ntawm tag nrho cov cua kub.
Txawm li cas los xij, 316 stainless hlau muaj qhov tseeb siv ciam teb. Ntev - lub sij hawm immersion nyob rau hauv siab - kub concentrated muaj zog acid los yog tov kua qaub-alkali corrosive kua yuav ua rau irreversible kev puas tsuaj rau nws nto passivation zaj duab xis, ua rau sai tube phab ntsa corrosion thiab scrappage. Rau tej yam kev mob hnyav ua hauj lwm, PFA qhwv cov cua sov los yog titanium cua sov raj ua hauj lwm raws li kev txhim khu kev qha. Yog tias cov cua sov nruab nrab yog cov dej ntshiab deionized tsis muaj corrosive impurities, xaiv 304 stainless hlau tuaj yeem ua tiav cov kev xav tau cua sov thiab zam cov khoom siv tsis tsim nyog.
Hauv cov ntsiab lus, nruab nrog molybdenum- txhim kho chloride tsis kam, ruaj khov thermal thiab cov khoom siv kho tshuab, hloov tau raws li kev ua haujlwm thiab kev ua haujlwm zoo, 316 stainless hlau cua sov raj ua rau cov khoom siv hluav taws xob zoo tshaj plaws thiab kev txuag hluav taws xob rau feem ntau cov xwm txheej uas muaj kev pheej hmoo corrosion tsawg thiab nruab nrab. Txawm hais tias tsis tuaj yeem hloov mus rau ultra-cov xov xwm hnyav corrosive, lawv tuav txoj haujlwm tseem ceeb uas tsis tuaj yeem hloov pauv hauv kev lag luam dav dav los tiv thaiv-corrosion cua sov sector.
