Cov khoom lag luam ua: Rings \ / tus txiv neej \ / cov tes tsho

Taub qab Weld Flanges yog hom nrov tshaj plaws ntawm kev kub siab pipeline flange. Lub taub hau tsim ntawm pob tw ntawm pob tw weld flanges muab ib qho kev sib txuas muaj zog heev, thiab pob tw weld flanges tuaj yeem ua tau ntau yam tsis muaj cov ntaub ntawv sib cuam tshuam thiab muaj / lossis kev sib txuas zoo. Taub qab Weld Flanges tseem muaj qhov zoo dua ntawm kev ua tau zoo rau huab siab siab thiab qis.

Ob chav pob tw weld flanges yog qhov zoo tshaj plaws rau cov ntawv thov kev muaj kev phom sij. Taub qab Weld Flanges tau yooj yim pom los ntawm lawv lub caj dab ntev.

Cov kev siv ntawm cov flanges suav nrog roj av roj, petrochemical, roj thiab lwm cov twj piping.

Piv rau ustenitic stainless hlau, duplex stainless hlau muaj ntau dua lub taub thiab tawm tswv yim thiab txhim kho chloride scc (kev nyuaj siab corrosion tawg). Lawv kuj nthuav qhia kev nruj dua li cov hlau ferritic stainless.
Lub Flange yog qhov thib ob feem ntau siv koom nrog txoj kev tom qab selding. Kev siv flanges tau siv thaum cov pob qij txha xav tau dismantling. Nws muab kev hloov tau rau kev saib xyuas. Flange txuas cov yeeb nkab nrog ntau yam khoom siv thiab li qub. Breakup Flanges tau ntxiv rau hauv cov raj xa hluav taws yog tias kev saib xyuas tsis tu ncua thaum lub sijhawm cog ntoo.
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.

Qhov no nyeg hnov ​​cov qoob loo zom cov qoob loo, tsis muaj zog thiab corring nws. Qhov txiaj ntsig ntawm vuam alloy 2507 dig muag Flanges yog tias cov chemetistry hauv lawv cov alloy muaj cov ntsiab lus muaj roj carbon tsawg heev. Qhov no ua rau nws nyuaj rau tsim carbide precipitates thiab inadvertasently tiv thaiv intergranular corrosion.

Duplex cov hlau muaj ob qho tib si Ferritic thiab ustenitic micrettructures. Vim tias lub zog zoo heev zog thiab hluav taws xob tiv thaiv, peb cov flanges tau siv dav hauv cov ntaub ntawv sib txawv xws li cov khoom siv tshuaj lom neeg, roj thiab roj, thiab lwm yam.

Lub oxidation tiv thaiv cov theem ob steel s31803 zoo li muaj nkig ntawm qhov kub ntawm 300 degrite tom qab sib kis ntawm 475 degrees Celsius. Cov theem qib ob steel s32205 ntiv nplhaib sib koom ua ke kuj tseem muaj kev ua kom muaj zog thiab kev qaug zog zoo li cov khoom lag luam thermal thiab ntau dua thermal conductivity tshaj li tau lees paub.

ASTM A182 F51 Flange yog ua cov roj carbon, chromium, mangelese, siosphorus, cov leeg qaib, nitrogen, molybdenum thiab 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 qauv hluav taws xob ruaj khov tiv thaiv cov kua txob hauv cov tubrog nkoj. Duplex Flanges Txuas zoo txuas cov raj xa khoom sib txawv hauv cov kab ke thiab cuam tshuam rau cov kua dej lossis roj av. Cov qib kawm no muaj zog dua thiab tawg tawm tsam ntau dua li cov qib tsis muaj txiaj ntsig. Cov flanges no tseem muaj qhov du me me thiab tuaj yeem muab welded hauv qhov chaw siv cov txheej txheem txheem.

Duplex flanges yog ua los ntawm cov hlau tshwj xeeb nrog cov tshuaj austenitic thiab ferritic metallurgical nta hauv nws cov microstructure. Cov no yog cov hlau nplaum sib nqus nrog cov kev ua siab loj thiab ua haujlwm tawv.

Raws li muaj pes tsawg leeg, cov ntaub ntawv tuaj yeem raug cais raws li qauv duplex, super duplex, thiab lean duplex. DupleX Steel Flanges yog haum rau kev kub siab, siab kub thiab cov ntawv thov corrosive heev. Duplex kuj tseem raug nqi tau zoo thiab tsis ntev los no tau siv thiab hloov los ntawm lwm cov qib.

DupleX Steel Flanges tau siv dav hauv kev siv tshuab siv, kev lag luam tshuab thiab tsheb lag luam hauv tsheb. Duplex steel s31803 lap flanges yog qhov zoo tagnrho rau cov ntawv thov ua kom zoo dua li hom 316 thiab lub zog kub zoo. Peb muaj lub duplex steel s31803 \ / s32205 flanges hauv Tshuag. Duplex steel flanges yog ib txwm siv hauv tshuaj, petrochemical, thiab kev lag luam fais fab.

EN1092-1: 2002 Phaj flange rau vuam \ / xoob phaj fled weld-ntawm phaj dab tshos \ / dig muag flange \ / Worn Flange Pn2.5-PD Flange Pn2.5-Pn100 Dn4000

DupleX Steel Flanges yog cov nyom tawv uas tseem yog cov tiv taus corrosion kuj yog resistant. Lub microstructure ntawm cov hlau no muaj kev sib xyaw ntawm ferrite thiab austenite kaujs. Yog li ntawd, lawv muaj cov yam ntxwv ntawm ob qho tib si ferritic thiab anustenitic stainless hlau.

Ib txoj kev sib koom ua ke flanged yog tsim ntawm peb cais thiab ywj siab yog tias muaj kev sib cuam tshuam; Cov flanges, lub gaskets, thiab cov bolting; Uas tau sib sau los ntawm kev cuam tshuam lwm tus cuam tshuam, fitter. Cov kev tswj tshwj xeeb yuav tsum muaj nyob rau hauv kev xaiv thiab kev xaiv ntawm tag nrho cov muaj cov ntsiab lus kom muaj kev sib koom ua ke, uas tau siv tau xau nruj.

ASME B16.5 WN \ / LWN \ / Yog li \ /

ASME B16.5 DUPLEX Steel Forged Flanges muaj nyob rau hauv ntau thiab tsawg los ntawm 1 \ / 8 "txog 24". Nyob ntawm qhov loj me, flanges muaj nyob hauv cov chav kawm siab sib txawv. Chav Kawm 150 DuPlex yeeb nkab flanges yog qhov qis tshaj plaws ntawm chav kawm txog 2500.

Nws yog xav tau thaum lub caj dab xav tau ntev. DupleX steel flanges ua raws li txuas ntxiv. Duplex steel flanges tau siv hauv kev lag luam thiab kev lag luam roj av rau cov chaw nyob thiab ua lag luam. DupleX steel flanges ua tau zoo hauv paus qib siab thiab cov kev ntsuas kub hloov tshiab. Ntev ntev weld flanges muaj nyob rau hauv ntau qhov ntev, ntau thiab tsawg thiab qhov ntev thiab xav tau kev xav tau.

Ib Flange yog ib qho kev tawm tsam, daim di ncauj lossis sab nraud, tog twg los sab nraud lossis sab hauv, uas yog cov nqaj hlau xws li ib tug t-nqaj); Rau cov ntawv yooj yim tau yooj yim \ / hloov ntawm kev sib cuag nrog lwm yam khoom (raws li flange thaum kawg ntawm cov yeeb nkab, chav dej lub tog raj kheej, lossis ntawm lub ntsej muag lub koob yees duab); Los yog rau kev ruaj khov thiab taw qhia kev txav ntawm lub tshuab lossis nws cov ntu (raws li sab hauv flange ntawm tsheb ciav hlau lossis lub log los ntawm kev khiav tawm ntawm cov ciav hlau). Lo lus "Flange" kuj yog siv rau hom cuab yeej siv los ua cov flanges.

Uns31803 tau muab ntxiv los ntawm s32203 (F60)

Cov qauv hluav taws xob ruaj khov tiv thaiv cov kua txob hauv cov tubrog nkoj. Duplex Flanges Txuas zoo txuas cov raj xa khoom sib txawv hauv cov kab ke thiab cuam tshuam rau cov kua dej lossis roj av. Cov qib kawm no muaj zog dua thiab tawg tawm tsam ntau dua li cov qib tsis muaj txiaj ntsig. Cov flanges no tseem muaj qhov du me me thiab tuaj yeem muab welded hauv qhov chaw siv cov txheej txheem txheem.

Rau ntau cov ntawv thov uas 300 series stainless hlau yog qhov raug rau cov chloride kev ntxhov siab tawg, 2205 duplex stainless hlau yog qhov kev daws teeb meem zoo. Kev ntxhov siab corrosion tawg tshwm sim thaum stainless hlau yog raug rau tensile muaj kev ntxhov siab thaum sib cuag nrog cov kev daws teeb meem uas muaj chlorides. Kev kub siab dua kub kuj nce ntxiv qhov kev ua kom muaj kev phom sij ntawm cov hlau tsis muaj mob corrosion.

Duplex 2205 Flanges yog tsim los ntawm Austenitic-Ferritic stainless hlau thiab yog tsim los muab lub zog siab dua thiab corrosion tsis kam li 300 series stainless hlau. Nws pab cov neeg siv tsis txhob muaj kev ntxhov siab rau kev ntxhov siab rau 316 thiab 317.

Qhov no alloy tiv taus chloride ib puag ncig thiab sulfide kev nyuaj siab corrosion. Nws tseem yog kwv yees ob npaug lub zog ntawm cov qauv ntawm cov hlau tsis huv.

Piv nrog ustenitic steel hlau, f51 tus txheej txheem duplex muaj ob zaug lub zog, thiab piv nrog 316L thiab 317L, tus tsim qauv tuaj yeem txo nws qhov hnyav.

Cov yeeb nkab flanges tau siv dav ua ib qeb nrov ntawm cov yeeb nkab fittings. Flanges yog siv los kho tshuab txuas ob lub kav dej ua ke. Nws kuj tseem tuaj yeem siv los kho tshuab txuas kav rau Tees, li qub, txhauv lossis lwm yam khoom siv. Flanges muaj nyob rau hauv puag ncig, square thiab duab plaub. Muaj qee kis, flanges feem ntau yog lub nplhaib-puab lossis phaj-puab los ua ib lub npoo nyob rau thaum kawg ntawm cov yeeb nkab thaum ua rau cov yeeb nkab.

2205 yog cov hlau uas siv hluav taws xob ntau tshaj plaws, suav rau ntau tshaj 80% ntawm lub duplex kev ua lag luam. Alloy 2205 muaj cov corrosion zoo dua nyob rau hauv ntau qhov chaw ib puag ncig uas 316L feem ntau yog siv, nrog cov txiaj ntsig ntxiv ntawm cov txiaj ntsig ntau dua lub zog.

Lawv tiv taus kev corrosion dav. Peb yog cov neeg muab khoom ntawm ASME SA182 Duplex Steel unc undliges rau cov dej hiav txwv thiab cov cuab yeej siv hluav taws xob.

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.

Ob qho tib si Asme B16.5 thiab ASME B16.47 tau pom zoo cov yeeb nkab flanges ua los ntawm ib qho ntawm ob lub stuplex ntau.

Hom: WN \ / LWN \ / S S S S S S S S SW \ / PHAJ YOG MUAJ / VAJTSWV \ / Tig Los Yog Muaj Dab Neeg