316L stainless hlau coil tubing lwm tus neeg

Rau cov ntawv thov uas raug rau cov kua dej corrosive xws li dej hiav txwv thiab tshuaj lom neeg, cov kws ua haujlwm ib txwm hloov mus rau siab valence npib tsib xee alloys xws li Alloy 625 raws li qhov kev xaiv.Rodrigo Signorelli piav qhia tias vim li cas cov hlau nitrogen siab yog ib qho kev lag luam uas muaj zog tiv thaiv corrosion.

316L stainless hlau coil tubing lwm tus neeg

Stainless hlau Coiled Tube Qhov ntau thiab tsawg

Stainless hlau Coiled Tubes tshuaj muaj pes tsawg leeg

Stainless Hlau Seamless 316 / L Coiled Tube Qhov ntau thiab tsawg

Muaj Qib ntawm Stainless Hlau Coiled Tubes / Coil Tubing

Kev ua tau zoo thiab ntawv pov thawj txiav txim siab xaiv cov khoom siv rau cov tshuab xws li phaj kub hloov pauv (PHEs), cov kav dej thiab cov twj tso kua mis hauv kev lag luam roj thiab roj.Technical specifications xyuas kom meej tias cov cuab yeej muab kev txuas ntxiv ntawm cov txheej txheem dhau lub neej ntev dua thaum ua kom zoo, kev nyab xeeb thiab kev tiv thaiv ib puag ncig.Qhov no yog vim li cas ntau tus neeg ua haujlwm suav nrog nickel alloys xws li Alloy 625 hauv lawv cov lus qhia thiab cov qauv.
Tam sim no, txawm li cas los xij, cov engineers raug yuam kom txwv cov nqi peev, thiab cov nickel alloys kim heev thiab muaj kev cuam tshuam rau cov nqi hloov pauv.Qhov no tau hais txog thaum Lub Peb Hlis 2022 thaum tus nqi npib tsib xee tau nce ob zaug hauv ib lub lis piam vim kev lag luam kev lag luam, ua cov xov xwm.Thaum cov nqi siab txhais tau tias cov nickel alloys raug nqi siv, qhov kev hloov pauv no tsim kev sib tw rau cov kws tsim qauv tsim raws li kev hloov pauv sai sai tuaj yeem cuam tshuam cov txiaj ntsig tau zoo.
Yog li ntawd, ntau tus kws tsim qauv tsim tam sim no txaus siab los hloov Alloy 625 nrog lwm txoj hauv kev txawm tias lawv paub tias lawv tuaj yeem tso siab rau nws qhov zoo.Qhov tseem ceeb yog txhawm rau txheeb xyuas cov alloy uas tsim nyog nrog rau qib tsim nyog ntawm kev tiv thaiv corrosion rau seawater systems thiab muab ib qho alloy uas phim cov khoom siv kho tshuab.
Ib qho khoom tsim nyog yog EN 1.4652, tseem hu ua Outokumpu's Ultra 654 SMO.Nws yog suav hais tias yog cov feem ntau corrosion resistant stainless hlau nyob rau hauv lub ntiaj teb no.
Nickel Alloy 625 muaj tsawg kawg yog 58% nickel, thaum Ultra 654 muaj 22%.Ob leeg muaj tib yam chromium thiab molybdenum cov ntsiab lus.Nyob rau tib lub sijhawm, Ultra 654 SMO kuj muaj me me ntawm nitrogen, manganese thiab tooj liab, 625 alloy muaj niobium thiab titanium, thiab nws cov nqi ntau dua li cov npib tsib xee.
Tib lub sijhawm, nws sawv cev rau kev txhim kho tseem ceeb tshaj 316L stainless hlau, uas feem ntau suav hais tias yog qhov pib ntawm kev ua haujlwm siab stainless hlau.
Nyob rau hauv cov nqe lus ntawm kev ua tau zoo, lub alloy muaj zoo heev tsis kam mus rau dav corrosion, siab heev kuj rau pitting thiab crevice corrosion, thiab zoo kuj rau kev nyuaj siab corrosion cracking.Txawm li cas los xij, thaum nws los txog rau lub tshuab dej hiav txwv, cov hlau tsis muaj steel hlau muaj qhov zoo dua cov hlau 625 vim nws zoo heev tsis kam rau chloride ib puag ncig.
Cov dej hiav txwv yog corrosive heev vim nws cov ntsiab lus ntsev ntawm 18,000-30,000 qhov chaw ntawm ib lab ntawm chloride ions.Chlorides nthuav tawm cov tshuaj tiv thaiv corrosion rau ntau qib steel.Txawm li cas los xij, cov kab mob hauv dej hiav txwv kuj tuaj yeem tsim cov biofilms uas ua rau cov tshuaj electrochemical thiab cuam tshuam rau kev ua haujlwm.
Nrog nws cov ntsiab lus tsis tshua muaj npib tsib xee thiab molybdenum, Ultra 654 SMO alloy sib xyaw muab cov nqi txuag nyiaj ntau dua li cov qauv siab 625 alloy thaum tuav tib theem ntawm kev ua tau zoo.Qhov no feem ntau txuag 30-40% ntawm tus nqi.
Tsis tas li ntawd, los ntawm kev txo cov ntsiab lus ntawm cov khoom tseem ceeb alloying, stainless hlau kuj txo qhov kev pheej hmoo ntawm kev hloov pauv hauv kev lag luam npib tsib xee.Yog li ntawd, cov neeg tsim khoom tuaj yeem ntseeg tau ntau dua rau qhov tseeb ntawm lawv cov lus pom zoo tsim thiab cov lus hais.
Cov khoom siv hluav taws xob ntawm cov khoom siv yog lwm qhov tseem ceeb rau cov engineers.Cov kav dej, cov khoom siv hluav taws xob, thiab lwm cov tshuab yuav tsum tiv taus qhov kub siab, hloov pauv kub, thiab feem ntau cov neeg kho tshuab kev co lossis kev poob siab.Ultra 654 SMO yog qhov chaw zoo hauv cheeb tsam no.Nws muaj lub zog siab zoo ib yam li alloy 625 thiab yog qhov siab dua li lwm cov hlau tsis muaj steel.
Nyob rau tib lub sijhawm, cov tuam txhab tsim khoom xav tau cov ntaub ntawv tsim tau thiab cov khoom siv weldable uas muab kev tsim khoom tam sim ntawd thiab tau yooj yim muaj nyob rau hauv cov khoom xav tau.
Hauv qhov no, cov hlau yog qhov kev xaiv zoo vim tias nws khaws cov qauv zoo thiab zoo elongation ntawm cov qhab nia austenitic, ua rau nws zoo tagnrho rau kev tsim cov khoom siv hluav taws xob muaj zog thiab sib zog.
Nws kuj muaj qhov zoo weldability thiab muaj nyob rau hauv ntau yam ntaub ntawv xws li coils thiab nplooj ntawv mus txog 1000mm dav thiab 0.5 mus rau 3mm los yog 4 mus rau 6mm tuab.
Lwm tus nqi kom zoo dua yog tias cov alloy muaj qhov ntom ntom dua li alloy 625 (8.0 vs. 8.5 kg / dm3).Txawm hais tias qhov sib txawv no yuav tsis zoo li qhov tseem ceeb, nws txo qis tonnage los ntawm 6%, uas tuaj yeem txuag koj nyiaj ntau thaum yuav ntau rau cov haujlwm xws li cov kav dej.
Nyob rau hauv lub hauv paus no, qhov qis dua txhais tau tias cov qauv tiav yuav sib dua, ua kom yooj yim rau kev thauj mus los, nqa thiab nruab.Qhov no yog tshwj xeeb tshaj yog pab tau nyob rau hauv subsea thiab offshore daim ntaub ntawv uas hnyav systems yog nyuaj rau lis.
Muab tag nrho cov yam ntxwv thiab cov txiaj ntsig ntawm Ultra 654 SMO - siab corrosion kuj thiab txhua yam muaj zog, tus nqi ruaj khov thiab muaj peev xwm los npaj kom raug - nws muaj peev xwm los ua kev sib tw ntau dua rau cov nickel alloys.