Corrosion Resistance Qhov zoo ntawm Incoloy 840 Cartridge rhaub

Cov tuam txhab ua tshuaj lom neeg, cov khoom siv hauv hiav txwv, thiab ntau lwm hom kev lag luam qee zaum yuav tsum tau cuam tshuam nrog cov teeb meem kim thiab txaus ntshai ntawm lub tshuab cua sov vim yog kev ua haujlwm hnyav. Cov khoom siv corrosive, xws li cov kua qaub lossis alkaline txheej txheem, dej ntsev, cov tshuaj siv tshuaj, thiab cov tshuaj ntxuav hnyav hnyav, yeej ib txwm tawm tsam cov khoom siv cua sov. Qhov no tuaj yeem ua rau lub plhaub tsis ua haujlwm, ua kom cua sov qis dua, hloov ntau zaus, lub sijhawm tsis tau npaj tseg, thiab muaj kev nyab xeeb loj xws li xau, luv Circuit Court, lossis khoom siv tsis ua haujlwm. Qhov teeb meem tsis tu ncua no qhia tau hais tias nws tseem ceeb npaum li cas los xaiv cov khoom siv hluav taws xob hauv tsev uas tau tsim tshwj xeeb los sawv cev rau cov kab mob corrosive, es tsis txhob siv cov ntaub ntawv zoo tib yam uas yuav tsis tiv thaiv zoo rau cov xwm txheej me. Incoloy 840 cartridge rhaub yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov thaum muaj kev ntseeg siab, lub neej ntev, thiab kev nyab xeeb tsis muaj kev sib cav. Nws siv cov cuab yeej siv thev naus laus zis los muab kev tiv thaiv corrosion uas zoo dua li lwm cov cua sov.

Incoloy 840 cartridge rhaub lub peev xwm los tiv thaiv corrosion los ntawm nws cov npib tsib xee zoo tshaj -chromium- hlau alloy muaj pes tsawg leeg, uas yog ua tib zoo tsim los tiv thaiv cov feem ntau nthuav thiab puas hom corrosion nyob rau hauv ib puag ncig muaj. Incoloy 840 txawv ntawm cov hlau tsis tu ncua xws li 304 lossis 316 vim tias nws tsis tau txais pitting, crevice corrosion, lossis oxidation dav dav hauv kev tawm tsam hnyav. Hloov chaw, nws muaj qhov sib npaug ntawm 20% chromium, 32-38% npib tsib xee, thiab me me ntawm txhuas, titanium, thiab carbon. Cov ntsiab lus no ua haujlwm ua ke kom cov hlau tiv taus corrosion thiab ruaj khov dua. Cov ntsiab lus chromium siab yog qhov tseem ceeb tshwj xeeb vim tias nws tsim cov tuab, nplaum, thiab nws tus kheej- kho oxide zaj duab xis rau ntawm lub tshuab cua sov lub plhaub thaum nws los rau hauv kev sib cuag nrog oxygen, txawm tias me me. Cov txheej txheem oxide passive no yog ib qho impermeable barrier uas nres cov corrosive yam tsis tau mus rau cov hlau hauv qab thiab pib tawg nws. Cov yeeb yaj kiab no muaj peev xwm kho tau nws tus kheej yog tias nws puas lawm. Txawm tias me ntsis khawb los yog abrasions tuaj yeem rov qab sai sai - ua txheej txheej tiv thaiv thaum lawv nkag mus rau oxygen, ua kom lub tshuab cua sov tiv thaiv tag nrho nws lub neej. Incoloy 840 cartridge rhaub yog qhov ruaj khov heev vim lawv tuaj yeem kho lawv tus kheej. Qhov no yog ib qho tseem ceeb nyob rau hauv cov xwm txheej uas cov sheath yuav tau hnav me ntsis, raug tuav, los yog kov nrog cov txheej txheem txheej txheem.

Incoloy 840 cartridge rhaub tuaj yeem tswj tau ntau yam khoom corrosive uas yuav ua rau lwm cov cua sov puas tsuaj vim nws cov oxide txheej tiv thaiv. Nws tiv taus cov acids tsis muaj zog thiab muaj zog (xws li sulfuric acid, hydrochloric acid, thiab phosphoric acid), alkaline daws (xws li sodium hydroxide), dej ntsev, brine, sulfur compounds, thiab organic solvents. Cov no yog txhua yam uas feem ntau siv hauv kev ua tshuaj lom neeg, marine, desalination, thiab ua zaub mov. Piv txwv li, nyob rau hauv cov tshuaj reactors uas cov txheej txheem kua tej zaum yuav muaj ntau acidic catalysts los yog corrosive byproducts, lub Incoloy 840 sheath nyob twj ywm, uas tsis yog ib txwm muaj xws li stainless hlau heaters. Nyob rau hauv ib puag ncig marine, qhov twg dej ntsev thiab huab cua nrog ntsev tuaj yeem xeb sai sai thiab qhov chaw hlau, cov hlau tsis kam rau cov tshuaj chloride-induced corrosion ua kom lub rhaub nyob ruaj khov thiab ua haujlwm zoo, txawm tias tom qab xyoo nyob rau hauv cov ntug hiav txwv hnyav los yog sab ntug dej hiav txwv.

Incoloy 840 cartridge rhaub muaj cov ntaub ntawv zoo dua qub thiab cov qauv tsim sab hauv uas ua haujlwm nrog nws cov kev tiv thaiv corrosion kom paub tseeb tias nws ua haujlwm zoo txawm tias nyob rau hauv qhov hnyav tshaj plaws. Lub tshuab cua sov muaj qhov zoo- rwb thaiv tsev zoo uas tau ntim zoo nyob ib puag ncig cov cua sov. Qhov rwb thaiv tsev no feem ntau yog tsim los ntawm magnesium oxide (MgO) lossis lwm yam ntaub ntawv uas tsis yaj yooj yim. Qhov rwb thaiv tsev no ua ob yam tseem ceeb: nws khaws cov cua sov los ntawm kev nkag mus rau sab hauv (qhov twg nws tuaj yeem ua rau cov khoom hauv lub cev puas ntsoog) thiab nws ua kom cov hluav taws xob ruaj khov txawm tias thaum nws los rau hauv kev sib cuag nrog me me ntawm cov dej noo los yog corrosive vapors. Incoloy 840 cartridge rhaub muaj cov rwb thaiv tsev ntom ntom uas ua kom cov dej thiab cov kua dej tsis zoo los ntawm kev nkag mus rau cov khoom cua sov lossis kev sib txuas hluav taws xob. Qhov no txawv ntawm qhov qis dua - cov cua kub zoo, qhov chaw noo noo tuaj yeem ua rau luv luv, rwb thaiv tsev tawg, lossis hluav taws xob arcing. Qhov no ua rau nws zoo rau daim ntawv thov kev nkag rau hauv dej (qhov twg lub tshuab rhaub dej tau ua tiav hauv cov txheej txheem cov kua dej) lossis vapor{10}} qhov chaw nplua nuj (xws li cov khoom siv hluav taws xob, cov tshuab hluav taws xob, lossis cov chaw ua haujlwm ntub dej), qhov twg lwm lub tshuab cua sov tuaj yeem tawg vim tias ya raws lossis corrosive vapors.

Incoloy 840 cartridge heaters yog tshwj xeeb tshaj yog zoo rau kev siv tseem ceeb hauv cov khoom noj thiab tshuaj lag luam vim lawv tiv taus corrosion thiab tshuaj ntxuav, uas tseem ceeb heev rau kev nyiam huv thiab huv. Hauv cov teb no, cov cua sov feem ntau raug rau cov tshuaj ntxuav hnyav xws li cov tshuaj chlorine-raws li cov tshuaj ntxuav tes, cov dej qab zib caustic, thiab peracetic acid. Cov tshuaj no txhais tau tias tua cov kab mob thiab lwm yam kuab paug, tab sis lawv kuj yuav ua rau cov hlau tsis tu ncua. Cov tshuaj ntxuav no yuav tsis ua mob rau Incoloy 840 sheath, yog li lub tshuab cua sov yuav tsis xau cov hlau phom sij rau hauv cov zaub mov lossis tshuaj, thiab nws yuav tsis tawg dhau sijhawm los ntawm kev ntxuav ntau zaus. Tsis tas li ntawd, lub tshuab cua sov ua kom du, polished sheath nto ua rau nws nyuaj rau cov kab mob los lo rau nws thiab tsim biofilms. Qhov no yog qhov tseem ceeb rau kev ua raws li cov qauv kev nyiam huv siab zoo li FDA cov cai hauv Teb Chaws Asmeskas thiab EU txoj cai kev nyab xeeb khoom noj. Qhov saum npoo du kuj ua rau nws yooj yim dua los ntxuav, vim av, khib nyiab, thiab cov organic teeb meem tuaj yeem yooj yim so lossis yaug tawm. Qhov no txo ​​qis txoj hauv kev ntawm kev sib kis thiab ua rau kev ua haujlwm tsis tu ncua.

Kev soj ntsuam teb thiab cov ntaub ntawv kev ua tau zoo tiag tiag qhia txog kev tiv thaiv corrosion ntawm Incoloy 840 cartridge rhaub. Incoloy 840 alloy qhov kev tiv thaiv rau cov tshuaj chlorine-induced stress corrosion cracking (CISCC) yog tshwj xeeb tshaj yog pab tau nyob rau hauv desalination systems, qhov twg cov cua sov yog raug rau siab - salinity brines thiab aggressive chloride ions uas yuav ua rau muaj kev ntxhov siab corrosion cracking nyob rau hauv ntau cov hlau. Cov nroj tsuag desalination siv cov cua sov los hloov cov dej hiav txwv mus rau hauv dej tshiab, thiab yog tias ib qho ntawm cov cua sov no tawg, tag nrho cov txheej txheem yuav raug tso tseg, uas raug nqi nyiaj thiab ua rau cov dej ua kom qeeb. Incoloy 840 cartridge rhaub ua rau cov tshuab no kav ntev dua los ntawm kev ua ob npaug lossis peb npaug ntawm lub neej ntawm cov cua sov tsis tu ncua thiab txo cov sij hawm uas lawv yuav tsum tau hloov lossis kho. Ib yam li ntawd, lub tshuab rhaub Incoloy 840 tseem ua haujlwm tau zoo rau lub sijhawm ntev hauv cov tshuaj reactors thiab cov hlab ntsha ua haujlwm, qhov twg cov cua sov tau raug rau cov tshuaj corrosive thiab kub kub. Qhov no txo ​​qis lub sijhawm tsis tau npaj tseg thiab ua kom cov txheej txheem tswj tau zoo ib yam. Cov neeg ua haujlwm cog lus hais tias lub tshuab cua sov zoo dua qhov kev tiv thaiv corrosion tau txuag tau nyiaj ntau los ntawm kev txo nqi txij nkawm, xav tau cov cua sov hloov tsawg dua, thiab ua rau muaj kev cuam tshuam tsawg rau kev tsim khoom.

Incoloy 840 cartridge rhaub yog tiv taus corrosion hauv ntau qhov sib txawv, tab sis kom tau txais txiaj ntsig zoo tshaj plaws, koj yuav tsum nruab thiab tswj kom raug. Kev sim rau kev sib raug zoo nrog cov txheej txheem tshwj xeeb tshaj tawm yog ib qho tseem ceeb uas yuav tsum xav txog. Txawm hais tias cov hlau tsis muaj peev xwm ua tau ntau yam corrosives, lub tshuab rhaub lub neej tseem tuaj yeem cuam tshuam los ntawm qib pH siab lossis qis qis (xws li cov kua qaub ntau nrog pH qis dua 1 lossis cov tshuaj caustic heev nrog pH saum toj 13) lossis los ntawm cov khoom tsis haum xeeb (xws li cov hlau hnyav, halides, lossis cov tshuaj reactive). Ua ntej siv lub tshuab cua sov, nws yuav tsum tau sim rau kev sib raug zoo hauv chav kuaj lossis ntawm qhov ntsuas me me hauv thaj teb. Qhov no ua kom paub tseeb tias nws yuav ua haujlwm zoo hauv ib puag ncig thiab yuav tsis tawg sai sai. Piv txwv li, yog tias cov txheej txheem ntawm cov kua dej hloov pauv lub sijhawm, ua kom lub qhov muag ntawm cov kua dej tshuaj zoo thiab kuaj xyuas lub tshuab cua sov txhua zaus tuaj yeem pab nrhiav teeb meem ua ntej lawv tuaj yeem tshwm sim.

Lwm qhov tseem ceeb uas yuav tsum tau ua kom Incoloy 840 cartridge rhaub kom tsis txhob xeb hauv qhov chaw hnyav yog hloov watt ceev. Watt ceev, los yog tus nqi ntawm lub hwj chim (hauv watts) ib square inch ntawm lub rhaub lub plhaub, muaj qhov cuam tshuam ncaj qha rau ntawm qhov kub thiab txias. Cov watt siab dua txhais tau tias qhov kub ntawm qhov chaw siab dua, uas tuaj yeem ua kom cov tshuaj tiv thaiv kab mob sib kis ntawm cov ntaub qhwv thiab qhov nruab nrab corrosive, rhuav tshem cov txheej txheem oxide tiv thaiv, thiab ua rau corrosion ntau dua. Yog tias koj nyob hauv ib puag ncig corrosive, nws yog qhov zoo tshaj plaws los siv lub rhaub Incoloy 840 ntawm qis wattage nqis. Qhov no txo ​​qis qhov kub thiab txias, txo qis tus nqi ntawm cov tshuaj tiv thaiv corrosive ntawm qhov chaw, thiab ua rau cov txheej txheem oxide passive los ntawm kev tawg. Qhov sib npaug ntawm qhov ua kom sov zoo npaum li cas thiab zoo npaum li cas nws tiv thaiv corrosion ua kom nws ua kom sov zoo thiab kav ntev. Cov neeg tsim khoom feem ntau muab cov lus qhia rau qhov zoo tshaj plaws watt ntom ntom raws li hom txheej txheem nruab nrab thiab qhov kub ntawm qhov uas nws khiav. Ua raws li cov lus qhia no yog qhov tseem ceeb kom tau txais kev ua tau zoo tshaj plaws.

Lwm qhov tseem ceeb uas yuav tsum tau ua kom lub Incoloy 840 cartridge rhaub los ntawm xeb yog txhim kho kom raug, tshwj xeeb tshaj yog nyob rau hauv cov chaw uas ntub dej los yog nquag ya raws. Hauv cov chaw no, cov khoom siv hluav taws xob tso tawm (qhov chaw uas tsim hluav taws xob sib txuas) yuav tsum raug kaw kom txaus kom cov dej, dej ntsev, lossis cov pa corrosive nkag tsis tau rau hauv. Yog tias qhov kev txiav tsis raug kaw, cov dej noo tuaj yeem nkag mus rau hauv lub tshuab cua sov sab hauv, uas tuaj yeem ua rau cov rwb thaiv tsev tawg, hluav taws xob luv luv ntawm cov cua sov los yog corrosion. Txhawm rau txo qhov kev pheej hmoo no, qhov kev txiav tawm yuav tsum tau ntim nrog epoxy lossis ceramic potting daws uas tau ntsuas rau qhov ntsuas kub ntawm daim ntawv thov. Cov tshuaj potting no ua rau cov dej tsis zoo, corrosion{5}} tiv thaiv kab mob uas ua kom cov dej noo tawm thiab ua rau lub rhaub dej kub tiv thaiv kev tiv thaiv siab tshaj 100 megohms (ib theem tseem ceeb heev rau kev nyab xeeb thiab kev ua haujlwm). Tsis tas li ntawd, kev siv cov khoom siv hluav taws xob thiab cov xaim hluav taws xob uas tsis xeb (xws li npib tsib xee-plated lossis Incoloy connectors) tuaj yeem ua rau lub tshuab cua sov tuaj yeem tiv taus cov cheeb tsam corrosive.

Txhawm rau pom cov cim qhia ntxov ntawm kev xeb thiab xyuas kom tseeb tias Incoloy 840 cartridge rhaub ua haujlwm tau zoo rau lub sijhawm ntev, nws yuav tsum tau kuaj xyuas thiab tswj tsis tu ncua. Raws li ib feem ntawm kev tshuaj ntsuam xyuas tsis tu ncua, koj yuav tsum nrhiav kom tsis muaj xim (xws li darkening, pitting, los yog xeb me ntsis), localized thinning, los yog tej yam tshwm sim ntawm lub cev puas tsuaj ntawm lub sheath. Tag nrho cov no yog cov cim thaum ntxov ntawm kev ua kom corrosion. Txawm tias me ntsis kev hloov xim tuaj yeem txhais tau tias cov txheej txheem oxide tiv thaiv tau tawg. Ua kom nrawm nrawm, xws li hloov watt ceev, hloov cov txheej txheem nruab nrab, lossis hloov lub rhaub yog xav tau, tuaj yeem nres qhov kev puas tsuaj los ntawm qhov tsis zoo. Tsis yog -kev kuaj kev puas tsuaj (NDT) txoj kev zoo li ultrasonic thickness gauging, eddy tam sim no kuaj, los yog kev soj ntsuam pom kev siv cov khoom siv magnification tuaj yeem muab cov lej pes tsawg rau koj lub plhaub thickness thiab kev ncaj ncees yam tsis tas yuav kaw lub kaw lus. Ultrasonic thickness gauging yog ua tau zoo heev vim nws siv siab - zaus suab nthwv dej los ntsuas lub thickness ntawm lub rhaub lub sheath. Qhov no cia cov neeg ua haujlwm nrhiav thaj chaw uas cov ntaub qhwv nyias nyias lossis pitting uas yuav tsis pom tseeb ntawm qhov muag liab qab. Qhov kev tiv thaiv kev tiv thaiv kev tiv thaiv no ua kom paub tseeb tias cov teeb meem raug pom thiab kho ua ntej lawv ua rau lub rhaub dej tawg lossis ua rau muaj kev nyab xeeb.

Incoloy 840 cartridge rhaub tsis yog tsuas yog tiv taus corrosion, tab sis nws kuj muaj cov qauv siv tau yooj yim uas ua rau nws ua haujlwm nrog ntau yam khoom siv tshiab thiab qub. Nws tuaj yeem teeb tsa nrog cov kab sib txawv, qhov ntev, thiab wattages, yog li nws tuaj yeem ua haujlwm nrog cov cuab yeej qub yam tsis xav tau ntau yam kev hloov pauv lossis hloov kho dua tshiab. Qhov no yog qhov tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau cov tswv lag luam uas xav txhim kho cov kev tiv thaiv corrosion thiab kev cia siab ntawm lawv cov tshuab cua sov yam tsis tas yuav them tus nqi siab ntawm kev hloov cov khoom ua tiav. Incoloy 840 cartridge rhaub tuaj yeem ua kom haum rau cov kev xav tau tshwj xeeb ntawm daim ntawv thov, txawm tias nws xav tau lub tshuab hluav taws xob me me -inch rau qhov chaw kaw ntom nti, ntev - lub rhaub dej rau immersion nyob rau hauv qhov sib sib zog nqus tso tsheb hlau luam, los yog ib tug bespoke wattage configuration kom tau raws li cov kev xav tau cua sov tshwj xeeb. Qhov yooj yim thiab siab tiv thaiv corrosion ua rau nws tus nqi -kev xaiv zoo rau ntau yam kev siv.

Thaum kawg, Incoloy 840 cartridge rhaub lub peev xwm los tiv thaiv corrosion ua rau cov ntaub ntawv rov qab los ntawm kev nqis peev hauv daim ntawv ntawm tus nqi qis dua, kev pab lub neej ntev dua, kev nyab xeeb zoo dua, thiab kev ua haujlwm zoo dua. Nws tiv thaiv cov teeb meem feem ntau ntawm corrosion, xws li pitting, crevice corrosion, oxidation, thiab chloride-induced stress corrosion cracking. Qhov no txhais tau hais tias cov cua sov tsis tas yuav tsum tau hloov ntau zaus, tsis muaj lub sijhawm tsis tau npaj tseg, thiab tsis muaj teeb meem kev nyab xeeb thaum lub tshuab cua sov tsis ua haujlwm. Rau cov tswv lag luam uas cuam tshuam nrog cov teeb meem corrosive, xaiv cov khoom siv hluav taws xob zoo tsis yog ib qho kev xaiv xwb; nws kuj yog ib qho kev tawm tswv yim uas cuam tshuam rau kev nyab xeeb thiab cov kab hauv qab. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov, lub sijhawm no, cov teeb meem corrosive sib txawv heev nyob ntawm kev lag luam, txheej txheem nruab nrab, thiab kev ua haujlwm. Yuav kom tau txais qhov kev ua tau zoo tshaj plaws, nws yog qhov zoo tshaj plaws kom muaj kev saib xyuas cov ntaub ntawv, xws li cov kws tshwj xeeb alloy lossis lub tshuab cua sov. Qhov kev ntsuas no saib cov tshuaj pleev xim ntawm cov txheej txheem nruab nrab, qhov kub thiab txias, siab, thiab lwm yam ib puag ncig. Qhov no ua kom paub tseeb tias Incoloy 840 cartridge rhaub (lossis lwm yam kev siv cua sov) raug xaiv kom haum rau cov kev xav tau ntawm daim ntawv thov zoo kawg nkaus. Incoloy 840 cartridge rhaub yog qhov kev xaiv txhim khu kev qha rau cov lag luam uas muaj kev tiv thaiv corrosion tseem ceeb heev. Qhov no yog vim hais tias nws muaj sophisticated alloy technology, ib tug muaj zog tsim, thiab hloov tau.