Lub Niche Champion: 321 Cartridge rhaub hauv Corrosive & High -Temp Combos
Tso lus
Thaum xaiv cov khoom siv rau lub tshuab cua sov, qee zaum xav tias koj yuav tsum xaiv ntawm kev tiv thaiv corrosion los yog kub kub . 316 stainless hlau yog qhov kev xaiv zoo tshaj plaws rau qhov chaw ntub dej nrog ntau cov tshuaj chloride, tab sis nws tsis tuaj yeem ua kom sov li 304. Inconel alloys tuaj yeem tiv taus qhov kub thiab txias, tab sis lawv kim heev. Muaj ib qho tshwj xeeb, nyuaj niche qhov twg ob qho tib si nruab nrab corrosion thiab kub kub tam sim no. Qhov no yog qhov chaw zoo rau 321 stainless hlau cartridge rhaub. Ntau tus neeg siv khoom lag luam muaj qhov teeb meem "-los yog" qhov teeb meem, uas txhais tau hais tias lawv nkim nyiaj ntau dua -Inconel cartridge rhaub lossis yuav tsum tau hloov hauv qab - ua 304 lossis 316 units sai sai. A 321 cartridge rhaub yuav yog qhov zoo tshaj plaws nruab nrab - lwm txoj hauv av.
Yuav kom nkag siab tias yog vim li cas 321 stainless hlau cartridge rhaub tau zoo nyob rau hauv cheeb tsam no, nws yog ib qho tseem ceeb uas yuav tsum xub tham txog cov teeb meem nrog rau lwm cov ntaub ntawv uas nrov tshaj plaws . 304 cartridge heaters pheej yig, tab sis lawv tsis sawv rau cov tshuaj zoo thiab tawg sai sai ntawm qhov kub siab tshaj 500 degree. Molybdenum ua rau 316 cartridge heaters zoo dua nyob rau hauv moist, chloride- ib puag ncig nplua nuj, tab sis lawv tsuas yog yuav ua rau sensitized li 304. Thaum chromium depleted ntawm grain ciam teb tom qab raug rau 425-815℃ntev, corrosion kuj tsis muaj zog. Inconel cartridge tso cua sov tuaj yeem tswj qhov kub thiab txias tshaj 1000 degree, uas yog qhov zoo rau qhov kub siab tshaj -. Txawm li cas los xij, lawv yog 2-3 npaug kim dua 321 vim lawv yog ua los ntawm npib tsib xee, uas yog cov khoom siv high-end. Qhov no feem ntau yog ib qho kev nqis peev uas tsis tsim nyog rau cov xwm txheej uas muaj kev xeb tsis zoo.
Xav txog txoj haujlwm ua zaub mov uas muaj kev kub siab - ci lossis ziab thiab siv caustic huv -hauv - qhov chaw (CIP) ntxhua txhua zaus. Xwb, cov txheej txheem tshuaj lom neeg ua haujlwm nrog cov kua qaub vapors thiab ua kom sov tab sis tsis xav tau kev sib cuag ncaj qha nrog cov kua qaub. Nyob rau hauv cov xwm txheej no "kev txhoj puab heev", cov pa roj carbon monoxide 304 tuaj yeem raug corroded los yog pitted lub sij hawm vim nws nto hnav los ntawm rov raug tshuaj. Nyob rau tib lub sijhawm, qhov zoo dua corrosion kuj ntawm 316 tuaj yeem cuam tshuam yog tias qhov kub thiab txias dhau mus dhau nws qhov kev nkag siab ntau, uas yog qhov sib txawv uas tsuas yog 321 cartridge rhaub tuaj yeem npog.
Lub 321 stainless hlau cartridge rhaub yog ib qho kev xaiv zoo vim nws siv titanium stabilization los kho cov teeb meem nrog lwm cov ntaub ntawv. Nws cov titanium-stabilized austenitic qauv nres intergranular corrosion nyob rau hauv 425-815℃sensitization cheeb tsam, uas cia nws nyob rau hauv tawv thiab resistant rau oxidation ntawm kub (txog 870 degree). Tsis tas li ntawd, nws muaj kev tiv taus ntau dua rau kev xeb hauv ntau qhov chaw lag luam tshaj li qhov xav tau 304, tshwj xeeb tshaj yog thaum nws los txog rau cov kua qaub xws li nitric acid thiab cov tshuaj caustic siv hauv CIP cov txheej txheem. Lub 321 cartridge rhaub tsis yog lwm txoj hauv kev zoo rau 316 nyob rau hauv ib puag ncig dej ntsev los yog rau Inconel hauv lub cub tawg uas yog 1100 degree. Tab sis rau cov txheej txheem hauv nruab nrab uas ua haujlwm ntawm qhov kub ntawm 500 thiab 800 degrees Celsius thiab tseem raug rau cov tshuaj, ncu, lossis combustion gasses ib ntus, 321 yog qhov kev xaiv ntev thiab pheej yig dua.
Exhaust gas analysis systems yog ib qho piv txwv ntawm qhov sib npaug. Nyob rau hauv cov tshuab no, cartridge rhaub sov qauv kab uas tuav acidic combustion khoom. Cov tshuab no ua haujlwm ntawm qhov kub ntawm 500 thiab 700 degrees Celsius, uas txhais tau hais tias lub tshuab cua sov raug rau cov pa corrosive. Nyob rau hauv cov xwm txheej no, 304 ua tsis tau sai, 316 tawg vim nws rhiab heev, thiab Inconel kim heev . 321 stainless hlau cartridge heaters ua hauj lwm zoo ntawm no vim hais tias lawv muaj peev xwm tuav tau ob qho tib si kub thiab acidic fumes, ua kom ntseeg tau tias cov qauv yog rhuab sib npaug zos. Lwm qhov kev siv tseem ceeb yog nyob rau hauv qee hom kev kho cua sov cua uas ua kom me me los yog carburizing. Cov cheeb tsam no xav tau qhov kub thiab txias (600-800 degree) thiab nthuav tawm lub tshuab hluav taws xob rau cov pa roj carbon monoxide, uas yog vim li cas 321 yog qhov kev xaiv zoo tshaj plaws.
321 cartridge rhaub kuj zoo heev rau kev tu cov cuab yeej nrog siab - qhov kub thiab txias. Chav tu siv qhov kub thiab txias tshaj 500℃thiab tso lub rhaub rau hauv ntub, me ntsis corrosive tej yam kev mob . 304 cartridge heaters corrode lub sij hawm, thiab 316 muaj teeb meem nrog rhiab heev ntawm cov kub. Txawm li cas los xij, 321 khaws nws cov qauv kev ncaj ncees thiab kev tiv thaiv corrosion, ua rau nws ntseeg tau ntev. Cov kev paub dhau los qhia tau hais tias 321 lub tshuab hluav taws xob tso cua sov dhau 1.5 txog 2 zaug ntev dua 316 units hauv cov kev sib xyaw no thiab raug nqi 30 txog 50% tsawg dua Inconel.
Txhawm rau xaiv cov khoom tsim nyog rau cov xwm txheej hybrid, koj yuav tsum ua tib zoo saib tag nrho cov tshuaj uas muaj nyob ntawd, suav nrog lawv hom, concentration, kub, thiab theem (vapor vs. liquid). Ib daim cartridge rhaub uas ua haujlwm zoo nyob rau hauv qhov kub, qhuav acid vapor yuav tsis ua haujlwm zoo nyob rau hauv cov kua condensed theem ntawm tib cov kua qaub. Qhov no yog vim tias cov tshuaj ua kua muaj corrosive ntau dua li lawv cov ntaub ntawv vapor. Nws yog ib qho tseem ceeb uas yuav tau muab tus neeg xa khoom paub txog daim duab tag nrho ntawm kev ua haujlwm.
Lawv tuaj yeem qhia rau koj yog tias 321 stainless hlau cartridge rhaub yog qhov haum zoo lossis yog tias ib puag ncig xav tau cov npib tsib xee tshwj xeeb dua -raws li alloy. Qhov no ua kom paub tseeb tias cov kev xaiv xaiv tau tsim los daws cov teeb meem tshwj xeeb ntawm daim ntawv thov. Cov neeg siv khoom lag luam tuaj yeem txuag nyiaj thiab sijhawm los ntawm kev xaiv 321 cartridge rhaub rau nruab nrab - cov xwm txheej hauv av. Txoj kev no, lawv tsis tas yuav them cov khoom siv tshwj xeeb lossis tos rau cov uas tsis ua haujlwm zoo. Lub 321 stainless hlau cartridge rhaub yuav tsis yog qhov zoo tshaj plaws - paub xaiv, tab sis nws yog qhov kev xaiv zoo tshaj plaws rau cov xwm txheej uas muaj qhov nruab nrab corrosion thiab kub tseem ceeb.
