Xaiv Cov Hlau Stainless Uas Yog Rau Kev Ua Tshuaj

Hauv kev lag luam ua tshuaj lom neeg, kev xaiv cov ntaub ntawv tsis yog tsuas yog qhov ua tau zoo xwb - nws yog qhov teeb meem ntawm kev nyab xeeb, kev ruaj khov, thiab kev siv nyiaj tsawg. Cov khoom siv siv hauv qhov kev lag luam no yuav tsum tiv tauscov tshuaj lom neeg ua phem, kub heev, siab siab, thiabcov chaw ua haujlwm corrosivetxhua hnub. Qhov no yog qhov twghlau tsis xebua pov thawj tias yog qhov kev xaiv tshwj xeeb.

Tiam sis tsis yog txhua tus hlau stainless yog tsim los zoo ib yam. Kev xaiv qib zoo yog qhov tseem ceeb rau kev ua tiav lub neej ntev, zam kev puas tsuaj ntawm cov khoom siv, thiab ua kom muaj kev ua haujlwm zoo. Hauv tsab xov xwm no, peb tshawb nrhiav cov yam tseem ceeb rau kev xaiv hlau stainless hauv kev ua tshuaj lom neeg, cov qib feem ntau, thiab lawv cov txiaj ntsig tshwj xeeb. Nqa tuaj rau koj los ntawmsasaalloy, koj tus khub ntseeg siab hauv cov ntaub ntawv hlau tsis xeb rau kev ua haujlwm zoo tshaj plaws.

Vim Li Cas Cov Hlau Stainless Thiaj Tseem Ceeb Hauv Kev Ua Tshuaj

Cov hlau tsis xeb muaj qhov sib xyaw ua ke tshwj xeebkev tiv thaiv corrosion, lub zog, kev tiv thaiv kub thiab kev huvNws cov chromium-nplua nuj sib xyaw ua ke tsim cov txheej oxide passive uas tiv thaiv qhov chaw ntawm kev tawm tsam tshuaj lom neeg - txawm tias nyob rau hauv qhov muaj cov kua qaub, alkalis, thiab cov kuab tshuaj muaj zog.

Cov txiaj ntsig tseem ceeb rau cov chaw muaj tshuaj lom neeg suav nrog:

• Zoo heev tsis kam rau qhov xeb ntawm qhov pitting thiab crevice

• Cov khoom siv kho tshuab muaj zog ntawm ob qho tib si kub thiab txias

• Yooj yim ntawm kev tsim khoom thiab vuam

• Kev saib xyuas tsawg thiab lub neej ua haujlwm ntev

• Kev sib raug zoo nrog cov kab ke huv si thiab huv si (CIP)

At sasaalloy, peb muab cov khoom siv hlau tsis xeb uas ua tau raws li cov qauv thoob ntiaj teb thiab cov kev xav tau tshwj xeeb ntawm cov neeg siv khoom.

Cov Yam Yuav Tsum Xav Txog Thaum Xaiv Cov Hlau Stainless

Thaum xaiv cov hlau tsis xeb rau kev siv tshuaj lom neeg, cov engineers yuav tsum soj ntsuam:

• Cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov txheej txheem xov xwm

• Kev sib xyaw ua ke, kub, thiab siab

• Hom xeb (piv txwv li, dav dav, pitting, kev ntxhov siab tawg)

• Kev xav tau ntawm kev vuam thiab kev tsim khoom

• Kev ua raws li txoj cai thiab kev tu cev huv si

• Tus nqi thiab qhov muaj

Kev tsis sib haum xeeb ntawm ib puag ncig thiab cov khoom siv tuaj yeem ua rauua tsis tiav ua ntej lub sijhawm, kev kaw cov khoom kim heev, thiab tej zaum yuav muaj kev phom sij rau kev nyab xeeb.

Cov Qib Hlau Stainless Feem Ntau Rau Kev Ua Tshuaj Lom Zem

1. 304 Cov Hlau Stainless

• Kev sau ua ke18% chromium, 8% nickel

• Cov txiaj ntsig: Kev tiv thaiv corrosion zoo, kev lag luam

• Cov kev txwvTsis zoo rau cov chaw uas muaj chloride ntau

• Cov ntawv thov: Cov thoob dej cia khoom, cov kav dej, cov kev txhawb nqa qauv

304 yog siv dav rau cov khoom siv tshuaj lom neeg dav dav, tshwj xeeb tshaj yog qhov twgcov kua qaub me melossis cov chaw tsis muaj chloride muaj nyob.

2. 316 / 316L Cov Hlau Tsis Xeb

• Kev sau ua ke16% chromium, 10% nickel, 2% molybdenum

• Cov txiaj ntsig: Txhim kho kev tiv thaiv rau chlorides thiab acidic ib puag ncig

• Cov ntawv thovCov khoom siv: Reactors, cov khoom hloov pauv cua sov, cov evaporators, cov li qub

316L muajcov ntsiab lus carbon tsawg dua, ua kom zoo dua raucov ntawv thov vuamqhov twg xeb ntawm cov pob qij txha yuav muaj kev pheej hmoo.

3. 317L Stainless hlau

• Kev sau ua keMolybdenum ntau dua li 316L

• Cov txiaj ntsig: Kev tiv thaiv zoo dua rauchloride pitting thiab crevice corrosion

• Cov ntawv thovCov khoom siv: Cov tshuaj dawb ntawm cov ntaub ntawv thiab cov ntawv, cov tshuaj reactors, cov scrubbers

Thaum 316L tsis txaus nyob rau hauv qhov chaw muaj corrosive heev, 317L muab kev tiv thaiv pheej yig dua.

4. 904L Cov Hlau Stainless

• Kev sau ua keCov ntsiab lus nickel thiab molybdenum siab

• Cov txiaj ntsig: Zoo heev hauvib puag ncig muaj zog acidsuav nrog sulfuric, phosphoric, thiab acetic acids

• Cov ntawv thovCov khoom siv hloov cua sov, cov khoom siv pickling, kev tsim cov kua qaub

904L tiv taus ob qho tib si txo qis thiab oxidizing cov neeg sawv cev thiab tshwj xeeb tshaj yog zoo tiv thaivxov xwm ua phemthaum kub heev.

5. Duplex Stainless Steels (piv txwv li, 2205, 2507)

• Kev sau ua ke: Cov qauv austenitic-ferritic sib npaug

• Cov txiaj ntsig: Lub zog siab, zoo resistant raukev ntxhov siab corrosion cracking

• Cov ntawv thovCov hlab ntsha siab, cov khoom hloov pauv cua sov, kev ua haujlwm hauv hiav txwv

Cov hlau tsis xeb duplex muab cov khoom zoo tshaj plaws ntawm austenitic thiab ferritic steels ua ke, ua rau lawv zoo tagnrho rau kev siv siab, chloride-nplua nuj.

6. Cov hlau nplaum 20 (UNS N08020)

• Cov txiaj ntsig: Tsim tshwj xeeb rautsis kam rau cov kua qaub sulfuric

• Cov ntawv thov: Cov thoob dej cia kua qaub, cov khoom siv pickling, kev thauj tshuaj lom neeg

Alloy 20 muab kev tiv thaiv zoo heev hauvCov txheej txheem acidic thiab chloride-laden, feem ntau ua tau zoo dua 316 thiab 904L hauv cov chaw sulfuric.

Cov ntawv thov hauv Kev Lag Luam Tshuaj

Cov hlau tsis xeb yog siv rau txhua theem ntawm kev ua tshuaj lom neeg, suav nrog:

• Cov thoob dej cia khoom thiab cov hlab siab

• Cov chav sib tov thiab cov tshuaj tiv thaiv

• Cov khoom siv hloov cua sov thiab cov condenser

• Cov kav dej thiab cov li qub

• Cov kab distillation thiab cov scrubbers

Ua tsaug rau nws txoj kev huv thiab tsis ua haujlwm, cov hlau tsis xeb kuj zoo tagnrho rautshuajthiabkev tsim cov tshuaj lom neeg hauv zaub mov.

Cov txiaj ntsig ntawm kev xaiv qib zoo

Kev xaiv qib hlau tsis xeb kom raug ua kom ntseeg tau tias:

• Txo lub sijhawm tsis ua haujlwm vim yog xeb lossis ua tsis tiav

• Cov nqi kho qis dua

• Lub neej siv khoom ntev dua

• Kev nyab xeeb thiab kev ua raws li txoj cai zoo dua

• Zoo dua qhov rov qab los ntawm kev nqis peev

At sasaalloy, peb pab neeg ua haujlwm nrog cov neeg siv khoom los txheeb xyuas cov khoom siv hlau uas pheej yig tshaj plaws raws li cov xwm txheej ua haujlwm tiag tiag - tsis yog cov nqi ntawm cov ntaub ntawv xwb.

Xaus lus

Hauv kev lag luam ua tshuaj lom neeg, kev xaiv cov khoom siv yog qhov kev txiav txim siab zoo uas cuam tshuam ncaj qha raukev ua tau zoo, kev nyab xeeb, thiab kev ua tau nyiajNrog nws txoj kev tiv thaiv corrosion zoo heev, thermal stability, thiab cov khoom siv kho tshuab,Cov hlau tsis xeb tseem yog cov khoom siv tseem ceebrau cov chaw muaj tshuaj lom neeg uas xav tau ntau.

Txawm koj tab tom cuam tshuam nrog cov kua qaub, chlorides, cua sov siab, lossis kev ntxhov siab,sasaalloymuaj ntau yam stainless hlau qib uas tsim los rau kev ua tau zoo tshaj plaws. Txij li 304 thiab 316L mus txog 904L thiab duplex alloys,sasaalloytau cog lus tias yuav xa cov ntaub ntawv uas ua haujlwm tau zoo rau qhov tseem ceeb tshaj plaws - hauv koj cov txheej txheem.