Nyob rau hauv kev tsim kho cov tshuaj tiv thaiv cov hlab ntsha, cov khoom xa mus rau cov kav dej, thiab cov tso tsheb hlau luam loj, kev ua haujlwm ntawm stainless hlau daim hlau ncaj qha txiav txim siab txog kev nyab xeeb thiab kev pabcuam lub neej ntawm cov khoom siv. Thaum ntsib cov khoom siv tshuaj lom neeg, kev hloov pauv kub, thiab cov xwm txheej siab, peb xav tau ntau tshaj li 'xeb- pov thawj steel phaj'; peb xav tau cov ntaub ntawv engineering uas tuaj yeem ua raws li cov txheej txheem yuav tsum tau ua.
Kev xaiv cov khoom siv: Kev txiav txim siab logic raws li cov yam ntxwv nruab nrab
Lub hauv paus ntsiab lus tseem ceeb rau kev xaiv stainless hlau yog 'qhov nruab nrab txiav txim siab cov khoom'. Cov khoom sib txawv ntawm cov khoom siv tib yam yuav xav tau cov qib sib txawv ntawm cov hlau tsis muaj steel vim qhov sib txawv ntawm qhov sib txawv thiab qhov kub thiab txias ntawm qhov sib cuag nruab nrab.
Cov ntaub ntawv tseem ceeb nruab nrab sib xws:
- Nitric Acid Ib puag ncig: Rau nitric acid nrog cov concentration hauv qab 95%, 304L feem ntau yog txaus; rau siab -kub thiab siab -concentration tej yam kev mob, low-carbon 304L los yog molybdenum-muaj 316L yuav tsum tau xaiv los tiv thaiv intergranular corrosion.
- Acetic Acid Ib puag ncig: Ntshiab glacial acetic acid (tshaj 99% purity) muaj zog heev corrosivity rau cov ntaub ntawv ntawm chav tsev kub, thiab 304 yuav siv tau; Txawm li cas los xij, thaum acetic acid muaj cov impurities xws li formic acid lossis chloride ions, lossis nyob rau hauv siab - qhov kub thiab txias, nws yuav tsum tau hloov mus rau 316L lossis siab dua - qib molybdenum- uas muaj cov hlau tsis muaj steel.
- Alkali Solution Ib puag ncig: Alkaline daws xws li sodium hydroxide muaj corrosivity me me rau feem ntau stainless hlau nyob rau hauv chav tsev kub, tab sis siab -kub concentrated alkalis yuav ua rau 'alkali embrittlement'. Hauv cov xwm txheej zoo li no, cov hlau tsis muaj cov nickel ntau dua, xws li 304 lossis 316 series, yuav tsum raug xaiv.
Daim ntawv thov scenarios thiab cov ntaub ntawv piv txwv
1. Pharmaceutical Industry Reactors
Hauv kev tsim tshuaj, cov khoom siv yuav tsum tiv taus ntau yam organic solvents, acidic intermediates, thiab cov txheej txheem tu nruj heev . 316L yog qhov kev xaiv zoo tshaj rau kev sib cuag nrog cov tshuaj chlorine- uas muaj cov kuab tshuaj los yog thaum siv sodium hypochlorite los ntxuav, vim nws zoo heev tiv thaiv chloride ion corrosion. Lub phab ntsa sab hauv feem ntau xav tau 2B lossis BA nto tiav kom tsis muaj cov kab tuag thiab kev huv tau yooj yim.
2. Chemical Plant Heat Exchangers
Thaum lub tshav kub exchanger lub raj sab nqa cov txheej txheem xov xwm thiab lub plhaub sab nqa cov dej txias, txawm tias cov ntsiab lus chloride ion hauv cov dej txias tsuas yog ob peb lub kaum os ppm, kev ntxhov siab corrosion kuj tseem tuaj yeem tshwm sim ntawm qhov kub kawg. Duplex stainless hlau 2205, nrog nws cov kev tiv thaiv zoo heev rau kev ntxhov siab corrosion, ua tau zoo tshwj xeeb hauv xws li 'ib sab txheej txheem xov xwm, ib sab dej txias' kev ua haujlwm.
3. Khoom noj khoom haus Tank thiab cov kav dej
Ntxiv nrog rau cov kev cai yooj yim rau kev tiv thaiv corrosion, kev huv thiab tsis yog - tshuaj lom ntawm cov khoom kuj yuav tsum raug xam tias yog. 304 zaub mov- qib stainless hlau, tom qab kev kho tshwj xeeb, xyuas kom meej tias qhov kev tsiv teb tsaws ntawm cov hlau hnyav ua tau raws li tus qauv, nrog tus du thiab qhov pore - dawb nto los tiv thaiv kab mob loj hlob.
Daim ntawv thov
Core Competitiveness ntawm Ntau Qib:
1. 304 Series:Ntau yam - rounder nrog tus nqi siab- kev ua tau zoo. Haum rau feem ntau cov organic tshuaj, chiv ntau lawm, thiab dav acidic / alkaline ib puag ncig.
2. 316 Series:Txhim kho hom kev tiv thaiv. Qhov sib ntxiv ntawm molybdenum ho txhim kho pitting corrosion kuj, ua rau nws tshwj xeeb tshaj yog haum rau ib puag ncig uas muaj halide ions.
3. Duplex Stainless Hlau Series:Siab -kev daws teeb meem. Nws lub zog txhua yam yog ze li ob npaug ntawm austenitic stainless hlau, nrog kev ua haujlwm zoo heev rau kev ntxhov siab corrosion tawg. Qhov zoo tshaj plaws rau kev thauj khoom-cov kabmob cov qauv thiab siab- qhov chaw kub chlorinated.
4. Super Austenitic Steels (piv txwv li, 904L):Tsim los rau ib puag ncig hnyav. Nrog siab molybdenum thiab nickel cov ntsiab lus, lawv tuaj yeem tiv taus kub concentrated sulfuric acid, phosphoric acid, thiab cov kua qaub sib xyaw.
Kev xaiv stainless hlau daim hlau rau cov khoom siv tshuaj yog ib qho kev ntsuas uas yuav tsum tau nrhiav qhov zoo tshaj plaws sib npaug ntawm corrosion resistance, mechanical zog, workability, and cost{0}}effectiveness. Txawm hais tias qhov kev xaiv cov khoom siv tau zoo tuaj yeem nce kev nqis peev thawj zaug, nws tuaj yeem tiv thaiv kev cuam tshuam ntawm kev tsim khoom, kev nyab xeeb kev nyab xeeb, thiab kev hloov khoom kim heev, ua rau nws qhov kev xaiv pheej yig tshaj plaws los ntawm tag nrho lub neej kev xav.
