Rau ob lub stainless hlau flanges, tov annealing ntawm qhov ntsuas kub kom tsim nyog tuaj yeem ua tiav cov kev sib npaug zoo tshaj plaws ntawm theem. Nws yog ib qho tseem ceeb kom lub sijhawm nruab nrab ntawm kev tawm hauv lub cub tawg thiab dej quenching li luv tau. Qhov no yog kom txo qhov kub cua sov los ntawm flange, uas tuaj yeem ua rau muaj nag kev ua ntej dej tso tseg ua ntej tso dej sov.
Cov hlau dua lub lag luam tau qhia rau kev ua lag luam raws li kev ua haujlwm cuam tshuam nrog cov teeb meem kev ntxhov siab uas tshwm sim los ntawm chlorine daws teeb meem. Cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov khoom siv dullex flange kuj ua rau cov flanges tsawg dua rau cov chlorine-ntxias pitting corrosion. Cov alloys no tsis tshua kim dua li cov hlau uas muaj menyuam yaus npib tsib xee.
Chromium, Molybdenum, nitrogen thiab npib tsib yog qhov tseem ceeb tshaj plaws ntawm cov tshuab, lub cev thiab corrosion thaj chaw ntawm cov hlwv ntawm ob lub stuple. Chromium yog qhov tsim nyog los tsim cov chromium passivation zaj duab xis txaus los tiv thaiv hlau los ntawm cov huab cua tsis huv. Ntau dua cov ntsiab lus chromium, qhov zoo dua rau corrosion tsis kam.
Peb yog ib qho ntawm cov neeg tsim khoom loj tshaj plaws ntawm Duplex Steel zawv zawg Flanges nrog kev qaug zog zoo lub zog thiab siab corrosion tsis kam. 2205 Duplex Steel tsis pom flange tseem hu rau nws ntau yam khoom, xws li tau ua kom zoo heev los tawg, thiab corrosion hauv kev hnyav ib puag ncig.
Duplex Steel zawv zawg tsa lub ntsej muag muaj lub ntsej muag muaj kev tawm tsam, ua rau cov dej hiav txwv loj heev rau cov roj hauv dej tob thiab ntau ntawm lwm cov roj thiab roj app.
Raws li kev dig muag hauv nruab nrab hlau, Duplex dig muag tsa lub ntsej muag muaj zog thiab ob zaug rau cov neeg siv hluav taws xob piv rau cov qauv hlau stainless hlau ASTM 316L.
Dual-theem hlau pob tw-welded tsa lub ntsej muag lub ntsej muag flanges muab kev txiav kom zoo heev thiab kev hnav khaub ncaws nce thiab teeb tsa lub sijhawm.
2205 chav hlau chav roj muaj ob-theem microstructure ntawm ferrite thiab austenite. Thaum nws los txog rau cov tshuaj lom neeg muaj pes tsawg leeg ntawm 2205 duplex steel flanges, lawv feem ntau muaj 22% chromium, 3% molybdenum thiab 5-6% nyob rau hauv daim ntawv ntawm alloyed stainless hlau.
Duplex cov hlau stainless yeeb nkab muag khoom pom zoo cov kev ua haujlwm rau ntau yam haujlwm ntawm kev ua haujlwm tau zoo li cov haujlwm ntawm kev ua haujlwm ntawm kev ua haujlwm ntawm kev ua haujlwm ntawm kev ua haujlwm ntawm lub cev, I.E. Los ntawm hom 304 lossis 316 txog 6% Molybdenum stainless hlau.
Raws li nrog txhua tus stainless hlau qib, corrosion tsis kam ntawm cov hlau lossis alloy nyob ntawm feem ntau ntawm cov hlau, nyob rau hauv cov ntaub ntawv no stainless hlau. Rau kev tiv thaiv mus rau chloride pitting thiab crevice corrosion, cov ntsiab lus ntawm cov ntsiab lus xws li chromium, molybdenum thiab nitrogen yog qhov tseem ceeb tshaj plaws.
Cov ntsiab lus chromium yog li ntawm 20-28%, uas yog vim li cas uns uns uns uns tsis s31803 \ unson1205 dig muag flanges yauv tsis txaus siab hu ua passivation. Nyob rau hauv qhov xwm txheej no, kev kho tus kheej txoj kev tiv thaiv nws tus kheej passivating oxide txheej nyob ib puag ncig lub flange ua nws tiv taus oxidation.
Qhov ntau thiab tsawg los ntawm? " rau 48 ". Kev ntsuas siab ntau yam los ntawm 150 PSI PSI RAU 2500 PSI
Chromium yog ib tug ferrite yav dhau los, uas txhais tau tias nws txhawb nqa cov qauv BCC qauv ntawm cov hlau. Nws kuj tseem nce oxidation tiv thaiv nyob rau ntawm qhov kub. Siab chromium kuj txhawb kev tsim ntawm intermetallic theem, uas yog detrimental rau Duplex stainless hlau thiab yuav tsum tau hais.
Flanges kuj muaj ntsej muag sib txawv xws li tsa ntsej muag, tiaj tus ntsej muag thiab suab sib koom ua ke. Flange daim ntawv thov muaj nyob hauv iberospace, nuclear engineering thiab tshuaj siv tshuaj lom neeg. Duplex stainless hlau taub qab weld flanges muaj lub caj dab weld rau kev tuav ntxiv ua ntej thiab tom qab vuam.
Cov tshuaj lom neeg cov tshuaj lom neeg ntawm cov roj duplex f51 muaj cov pa roj carbon, chromium, mancese, molybdenum, npib tsib xee thiab phosphorus. Flanges tau siv rau hauv siab nruab nrab thiab cov fittings valve.
Duplex stainless tus khub qib yog lub npe denplex vim tias cov qib ob flange sib npaug muaj ob-theem microstructure. Qhov no ob-theem microstructure muaj cov ferritic thiab ustenitic stainless hlau-zoo li nplej. Raws li lub npe qhia, lub duplex kev tsim kho muab cov duplex stainless ntsaws qhov hluav taws xob muaj ntau yam khoom txaus nyiam.
Piv nrog rau cov neeg siv tshuaj pab pawg ua kom zoo nkauj, lawv muaj peev xwm los nagmes ntawm Sigma theem, Nitrides thiab carbides, ua rau corrosion thiab txo corrosion tsis kam. DupleX steel yeeb nkab yog ib qho Ultra-steel haum rau siv cov kev mob corrosive uas muaj zog heev zog yog qhov yuav tsum tau ua.
Kev sib xyaw ntawm chromium, molybdenum thiab nitrogen muab 2205 zoo tsis kam rau chloride pitting thiab crevice corrosion. Qhov kev tiv thaiv no yog qhov tseem ceeb tshaj plaws rau cov kev pab, cov dej brackish, cov dej num ua kom dawb, kaw cov ntaub ntawv ua zaub mov noj thiab qee qhov kev siv zaub mov noj.
Qhov tsim ntawm intermetallic theem xws li Sigma theem hauv Rerrrex flange tshwm sim hauv qhov kub thiab txias ntawm 350¡Ãc (475Ãc (475Ãc (475Ãc (475Ãc (475Ãc (475Ãc (475Ãc (475,000).
Duplex stainless hlau flanges tau dav siv nyob rau hauv cov roj ntsha thiab roj kev lag luam uas lawv raug rau corrosive roj. Nyob rau hauv cov roj thiab roj kev lag luam, qhov twg xov xwm thauj tau sai nyob hauv cov channel sai li, cov khoom siv uas tau siv ntawm no tuaj yeem siv ntawm no.
Cov khoom siv S32205 DuPlex Asme asme sa182 pob tw Weld Flanges yog tsim nyog rau dej hiav txwv thiab cov khoom siv hluav taws xob tuaj yeem tiv thaiv kom sov txog 600,000Ãf, thaum tseem muaj cov yam ntxwv zoo.
Lawv pab tau hloov kho thiab txawm ntxuav cov khoos phis tawm no. Lub corrosion tsis kam thiab tensile cov khoom ntawm ob tus steel hlau zawv zawg flam flanges yog nthuav dav piv rau feem ntau stainless hlau flanges.
Molybdenum nce tsis kam rau pitting thiab corrosion corrosion. Txawm li cas los xij, nws cov ntsiab lus hauv Duplex Stainless hlau feem ntau yog txwv rau tsawg dua 4% vim tias mo kuj yog tus ferrite yav dhau los thiab tuaj yeem ua rau tsis xav tau theem. Nitrogen txhim kho tsis kam rau pitting thiab corrose corrosion.
ANSI B16.5 DUPLEX thiab super DUPLEX flanges chaw tsim tshuaj paus, thiab flanges, F61, F61, F61, F61, F61, F61, F61, FF, FF, FF, FF, RTJ, TF ntsej muag / - Zhengzhou Huitong Pipeline Equipment Co., Ltd.
Cov cuab yeej ua lag luam tshaj plaws siv Duplex 2205. Kuj tseem siv los ntawm kev lag luam cia thiab tsheb thauj mus los. Pulp thiab cov ntawv luam tawm, tso tsheb hlau luam thiab ntawv ua kua thiab ntawv tshuab kuj siv duplex 2205. Nws yog qhov zoo rau kev siv hauv ib puag ncig marine.
Nws tseem zoo heev rau lub zog li cov khoom siv tau zoo tshaj plaws ntxiv dag zog. Nitrogen yog ib qho muaj zog Austenite yav tas los qub, thiab ntxiv rau ntawm nitrogen zoo heev txhim kho cov tawv ntawm ob theem steels. Nws kuj ncua qhov tsim ntawm intermetallic cov tebchaw txaus kom tso cai rau kev ua thiab FOORICE ntawm ob hom hlau. Nickel yog ib qho kev siv tsis huv uas txhawb kev tsim ntawm Austenitic FCC qauv, uas ua rau muaj kev sib zog ntawm ob theem steels.
Duplex stainless hlau flanges tau dav siv nyob rau hauv cov pipeline tshuab, risers, manifolds, thiab kuj nyob rau hauv lub pethoden kev lag luam nyob rau hauv daim ntawv ntawm siab cov hlab thiab pipelines. Duplex 2205 Flange cov khoom muaj lub zog zoo thiab lub siab tsis kam rau corrosion, pitting thiab crevice corrosion. Lub nominal tshuaj muaj pes tsawg leeg ntawm duplex 2205 yog 22% chromium, 3.2% molybdenum, 5% npib tsib xee thiab lwm yam alloy thiab nitrogen.
Rau cov qauv kev ua kom muaj kev sib tw ntawm cov qib tsis zoo (xws li 304 thiab 316), SCC tuaj yeem yog qhov teeb meem uas muaj av noo thiab muaj qee yam tshuaj lom li chlorides. Yog li ntawd, Duplex dig muag Flange cov neeg muag khoom feem ntau muab lawv rau kev lag luam xws li roj thiab muaj kev lag luam, kev lag luam petrochemical thiab marine.
Txij li thaum Nickel yog cov khoom siv khoom siv, tus nqi ntawm kev siv cov alloys uas tau siv cov alloys zoo li yuav kim heev. Txawm hais tias muaj cov ntsiab lus tsis muaj npe ntawm Nickel, Duplex 2205 flanges tswj hwm ntau yam khoom yog vim cov ntsiab lus siab ntawm Molybdenum thiab chromium.
Cov tswv yim yooj yim ntawm ob theem steel ntev ratt weld flanges yog tsim cov tshuaj muaj kuab lom uas ua rau muaj kev sib npaug ntawm ferrite thiab austenite. Cov tshuaj lom neeg cov tshuaj lom neeg ntawm cov hlau duplex lap flanges yog sib npaug los tsim li ntawm ferrite thiab Austenite raws li kev daws txoj cai.
