1. Tshaj dhau qhov yooj yim pom, yog dab tsi yog qhov tseem ceeb engorory
Kev xaiv Monel 400 rau cov ntawv sau ua kom zoo nkauj yog tsav los ntawm nws cov qauv kev ua tsis tiav uas cov qauv txheem stainless hlau yog qhov yooj yim. Thaum pom yog ib daim ntawv thov muaj ib qho, cov khoom siv tus nqi txuas mus deb dhau.
Qhov tseem ceeb engineering ntawm perforated monel 400:
Kev tiv thaiv kab mob rau chloride -}} indive kev nyuaj siab corrosion (CISCC): Qhov no yog qhov tseem ceeb tshaj plaws. Cov txheej txheem perforation (xuas nrig ntaus Nyob rau hauv chloride ib puag ncig (piv txwv li, offshore txaws cov aav, marine cua nyob rau hauv cov mob no yog qhov ua rau tsis muaj tseeb ntawm lub siab tsis ua tiav. Monel 400 yog kev tiv thaiv kab mob no rau qhov tshwm sim no, ua rau nws xaiv lub neej ntawd rau cov ntxaij tseem ceeb thiab grates hauv seawater.
Zoo dua kev rau pitting thiab crevice corrosion: lub npib tsib caug- tooj liab alloy muaj ntau dua li cov chromium- oxide tiv thaiv 316 stainless. Cov qhov punched qhov thiab cov ntawv sib chwv nrog kev txhawb nqa tsim cov geometries zoo tshaj plaws rau cov pob zeb corrosion, uas monel 400 withstands zoo.
Kev yaig zoo heev - corrosion resistance: rau cov ntawv thov zoo li cov tshuab hluav taws xob, cov kua dej slroding thiab cov kua dej uas muaj zog tuaj yeem sai sai cov ntaub ntawv. Monel 400 qhov kev sib xyaw ua ke ntawm cov kev sib xyaw ua ke thiab kev ua kom haum corrosion tau muab rau nws lub neej ntev dua 316 stainless hauv txoj haujlwm zoo li no.
Lub zog siab thiab tawv: nws khaws cov khoom siv zoo ntawm ob qho tib si cryogenic thiab muaj kev nce siab nruab nrab.
Kev sib piv rau perforated 316 stainless hlau:
Thaum 316l yog qhov zoo, nqi - Cov khoom siv tau zoo rau cov neeg muaj kev ntxhov siab thiab muaj kev ntxhov siab. Perforated monel 400 yog teev tsis yog ua khoom kim heev, tab sis raws li kev xav tau thaum cov kev pabcuam ib puag ncig ntawm CISCC thiab pitting hnyav.
2. Tus txheej txheem perforation no yuav ua haujlwm txias heev. Yuav ua li cas ua haujlwm ua haujlwm cuam tshuam rau cov khoom siv Microstruction thiab Corrosion Resistance, thiab muaj muaj ib qho post- Performance cov kev khomob pom zoo kom txo cov teeb meem?
Cov txheej txheem perforation, feem ntau ua los ntawm xuas nrig ntaus, yog qhov txias loj thiab nrawm dua} theem ua haujlwm ntawm qib me me, tshwj xeeb ntawm ib puag ncig ntawm txhua lub qhov.
Qhov cuam tshuam ntawm cov txheej txheem perforation:
Kev Hloov Partuctival: Kev Txiav Txim Siab Cov qauv nplej yog qhov cuam tshuam loj heev thiab elongated, thiab dislocation density skyrockets. Qhov no ua rau muaj kev nce hauv lub cev tseem ceeb hauv kev ua haujlwm hnyav thiab txo qis hauv kev sib tw. Qhov "hlawv" lossis sheared ntug yog ib thaj chaw ntawm kev ua haujlwm txias heev.
Taw qhia ntawm residual kev nyuaj siab: cov txheej txheem xauv rau hauv lub siab tensile residual desidual kev ntxhov siab ntawm lub ntsej muag zoo nkauj.
Cuam tshuam rau corrosion resistance: rau Monel 400, General Corrosion tus nqi hauv feem ntau cov xov xwm yog feem ntau tsis muaj kev tiv thaiv. Txawm li cas los xij, kev sib xyaw ua ke ntawm txias - ua haujlwm, ntxhov siab microstructure thiab ib puag ncig muaj teeb meem. Thaum monel 400 yog resistant rau chloride SCC, ib puag ncig rhiab tshaj plaws rau nws yog ib qho txias {- Ua haujlwm lub xeev tuaj yeem nce kev ua haujlwm loj tuaj kom tawg. Hauv cov xwm txheej tshwj xeeb heev, tshaj tawm {{{{}}}}} kev kho mob dhau los ua qhov tseem ceeb.
Pom zoo Post - Paforation Kev Kho:
Kev ntxhov siab kev sib raug zoo: kev ua kom zoo tshaj plaws thiab siv tau zoo. Cov ntawv Perforated yog rhuab rau ib qho kub ntawm 1100℃f thiab 1300℃f (593℃{{5 {txias. Tus txheej txheem no tsis recrystallize cov qauv nplej (uas yuav tsum tau tag nrho aneal) tab sis nws ua kom muaj kev ntxhov siab ntau dua thaum muaj kev sib tw. Qhov no yog cov kauj ruam tseem ceeb rau cov ntawv thov uas cov ntawv yuav ua rau Monel 400 tuaj yeem nkag siab.
Tag nrho Annealing: rau cov ntawv thov uas yuav tsum tau ua kom muaj txiaj ntsig ntau dua tom qab lub tog raj kheej ntawm 1600-1800 Degree F (8700 Degree) ua raws li los ntawm kev txiav txim sai sai yuav tau hais tseg. Qhov no ua kom rov qab ua tiav cov qauv nplej, rov kho cov qauv siab tshaj plaws thiab corrosion tsis kam, tab sis nws kuj rov kis tau, tshem tawm cov kev ua haujlwm txias.
3. Dab tsi yog qhov tseem ceeb tsim thiab cov ntsiab lus tshwj xeeb rau ib tug monel 400 perforated daim ntawv dhau ntawm cov khoom siv tau?
Qhia kom paub ib daim ntawv peromorated ib daim ntawv qhia ntxaws ntxaws cov lus qhia uas ncaj qha rau nws cov haujlwm, lub zog, thiab ntws cov yam ntxwv.
Tsim Nyog thiab Cov Kev Ntsuas Tshwj Xeeb:
Ntawv Thickness (ntsuas cua): Lub hauv paus tuab ntawm daim ntawv uas tsis muaj nqi. Nov yog thawj qhov kev txiav txim siab lub zog txheej txheem thiab lub zog ntawm lub vaj huam sib luag. Daim ntawv tuab tuab tuaj yeem tswj cov khoom ntim ntau dua thiab tiv taus kev cuam tshuam thiab kev puas tsuaj zoo dua.
Pictoration Qauv: Cov kev npaj ntawm qhov, feem ntau:
Staggered (60 degree): feem ntau cov qauv thiab cov qauv muaj txiaj ntsig. Nws muab qhov chaw qhib siab tshaj plaws rau ib lub qhov loj me thiab muaj cov qauv kev ua kom zoo.
Ncaj (xwmfab): yooj yim dua rau txheej tab sis feem ntau tsis muaj zog thiab nrog qhov chaw qhib qis dua li cov qauv staggered rau tib lub qhov loj me me thiab sib nrug.
Qhov taub uas haum: qhov loj me ntawm cov perforations. Nov yog thawj qhov tseem ceeb tswj tau qhov txheeb, lim, lossis cov muaj peev xwm tuav pov hwm hauv paus particle. Nws kuj tseem cuam tshuam rau thaj chaw qhib thiab qhov pom kev pob tshab ntawm daim ntawv.
Center -} rau -} Chaw Pitch (Txuas): Qhov kev ncua deb ntawm cov chaw nyob ntawm qhov chaw uas nyob ib sab. Qhov kev sib raug zoo ntawm lub qhov ntawm txoj kab uas hla thiab lub suab ncaj qha suav qhov tseem ceeb tshaj plaws metric kev ua haujlwm tseem ceeb tshaj plaws:
Qhib qhov chaw (%): tag nrho thaj tsam ntawm cov qhov qhia raws li feem pua ntawm tag nrho cov ntaub ntawv. Lub chaw qhib siab dua txo qis hauv lub siab poob hauv kev lim thiab tso cai rau lub teeb zoo dua, suab, lossis cua sib kis. Nws raug suav ua: Qhib thaj tsam%= (thaj tsam ntawm ib chav ntawm ib lub xov tooj ntawm tes) * 100.
Staggered vs. ncaj: Raws li tau hais los saum no, qhov kev xaiv xaiv no cuam tshuam ob lub zog thiab qhib qhov chaw.
Ntug npoo (ciam teb): Tus ciam tsis muaj ciam thoob plaws ib puag ncig ntawm ib puag ncig ntawm daim ntawv. Cov npoo uas txaus yog qhov tseem ceeb rau cov qauv ruaj khov, muab ib thaj chaw ruaj khov, muab cov ntawv nrawm, lossis txhawb nqa daim ntawv hauv nws tus ncej.
4. Hauv kev lag luam tshwj xeeb xws li kev ua yeeb yam lossis cov cuab yeej tshwj xeeb rau cov monel 400 perforated nws cov khoom?
Monel 400 perforated nplooj ntawv nrhiav cov luag haujlwm tshwj xeeb uas lawv cov cuab yeej tshwj xeeb cov khoom ntiag tug ua nruj kev sib tw.
Kev Lag Luam Kev Lag Luam:
Distillation kem Internal: siv los ua sieve cov tais lossis cov thawv ntim khoom. Lawv yuav tsum tiv thaiv cov pa hluav taws xob thiab kua (piv txwv li, chlorinated hydrocarbons, hf alkylation units tsis corroding lossis tawg ntho kom tsis ntxhov siab.
Dej Rev Reactor Distributor Daim phiaj: Cov phiaj no yuav tsum tau muab roj faib rau hauv qab ntawm lub txaj catalyst. Monel 400 txawm tawm tsam cov txheej txheem corrosive gases thiab cov kev txiav txim siab ntawm cov catalyst.
Scruber thiab demister Mesh cov qauv kev txhawb nqa rau cov pa roj av tsis huv uas tshem tawm cov dej ntws los ntawm cov roj corrosive.
Tubrog Nkoj thiab Offshore Kev Lag Luam:
Kev tsim txom ntawm kev yug los thiab taug kev tsis yog -}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} {} Lub cev tiv thaiv kab mob corrosion.
Hiav txwv hauv siab thiab cov kev sib zog: tiv thaiv seawater nkag los ntawm cov khib nyiab. Cov ntawv Perforated yuav tsum tiv thaiv biofouling, pitting, thiab erosive quab yuam ntawm dej thiab xuab zeb.
Cov ntaub ntawv muaj suab paj nruag acoustic thiab cov roj ntsha: nyob rau cov ntawv chaw nres nkoj, vim tias lawv muaj cov suab nrov Monel, raws li lawv muaj qhov ruaj khov thiab corrosion {{resistant.
Pulp thiab Daim Ntawv Kev Lag Luam:
Pulp Screens: Siv rau hauv kev ntsuam xyuas ntawm cov ntoo pulp, qhov twg tsis kam rau corrosive sulfides thiab chlorides hauv cov txheej txheem dej ntws.
5. Rau ib qho project enterner overseeing lub installation ntawm lub monel loj 400 perforated vaj huam sib luag, yog dab tsi yog {{2} {}} chaw vuam kom khaws nws txoj kev ncaj ncees?
Kev tuav tsis ncaj ncees thiab fabrication tuaj yeem rhuav tshem cov ntawv kim perforated. Tus txheej txheem kws ua choj yuav tsum siv txoj cai tswjfwm nruj.
Tuav thiab cia:
Zam kev puas tsuaj saum npoo: ib txwm siv cov muag muag muag thiab tsis txhob rub tawm. Cov ntawv yuav tsum tau khaws cia ncaj thiab sib cais los ntawm kev tiv thaiv kev tiv thaiv kom tsis txhob khawb cov npoo thiab npoo npoo.
Tiv thaiv kev paug hlau: khaws nyias ntawm cov khoom lag luam steel. Siv cov cuab yeej mob siab (piv txwv li, txhuas clamps, stainless hlau txhuam) kom tiv thaiv cov hlau sau cov nplais, uas yuav xeb thiab ua rau pitting.
Fabrication (txiav thiab tsim):
Txiav: rau kev txiav kom loj, waterjet txiav yog txoj kev zoo tshaj plaws. Nws ua kom muaj kev nyab xeeb huv, ntxhov siab - dawb ntug uas tsis muaj cua sov- bein cuam tshuam thaj chaw (Haz). Ntshav txiav yuav tau tab sis yuav tawm ib qho haz uas yuav xav tau hnav khaub ncaws. Abrasive txiav yog tsis pom zoo vim muaj kev pheej hmoo ntawm cov hlau tsis huv.
Txoj kev sib sau: Monel 400 ua haujlwm - hashens sai. Yog hais tias pawg sib tw yuav tsum tau khoov lossis dov, nws yuav tsum ua tiav maj. Siv cov loj dua li hluav taws xob ntau dua li cov hlau muag tau. Rau kev tsim kev hnyav, cov ntawv yuav tsum yog nyob rau hauv anealed anneal yuav tsim nyog kom zam dhau kev tawg, muaj kev ntxhov siab cov kev ntxhov siab.
On -} chaw vuam:
Cov txheej txheem vuam: Siv roj Tungsten Arc Vuam (GTaw / TIG) rau qhov zoo tshaj plaws thiab tswj. Roj Hlau Hlau Arc Vuam (Gmaw / Mig) tuaj yeem siv rau cov loj hauv Welds.
Muab tub lim hlau: Siv ib qho dhau - matching muab tub lim hlau xws li eNTICU-7 (Monel 67).
Cov tswv yim tshav kub tswj: Siv cov cua sov tsawg, thiab tswj hwm kev cuam tshuam kub hauv qab 150℃f (66 degree) los tiv thaiv cov qoob loo ntau thiab tiv thaiv kub tawg.
FIT -} li: kom nruj haum -}}}} Ua rau tsis txhob muaj kev ntxhov siab bridging, uas nce kev ntxhov siab thiab kev pheej hmoo ntawm kev tawg.
Post -} Weld Tu: Nws yog kiag li kiag li los tshem tawm cov cua sov tint (oxidized teev) los ntawm Weld thiab Haz. Qhov teeb meem tsis txaus no yog depleted nyob rau hauv chromium thiab yog txaus rau pitting. Siv tus hlau stainless hlau txhuam cov tshuaj tsib rau alloys thiab ua raws nrog cov pickling paste (piv txwv li} hydroflluoric acid) los rov ua zaj duab xis dhau los.
