Weld Overlay Flange

A weld overlay flangendi flange yopangika yokhala ndi dzimbiri-yomwe imayikidwa pamadzi{1}}pamtunda wolumikizana ndi kuwotcherera. Flange yoyambira imanyamula kukakamiza ndi mphamvu yoboola, pomwe CRA yophimba pamwamba imateteza nkhope, kusindikiza, RTJ groove, kusintha kwa khosi, kapena madera ena onyowa kuchokera kuzinthu zowononga.

Kapangidwe kameneka kamagwiritsidwa ntchito ngati chitsulo chokhazikika cha kaboni kapena chitsulo chochepa cha aloyi chili ndi mphamvu zokwanira zamakina, koma mbali ya ndondomekoyi imafuna kukana kwa dzimbiri. Nthawi zambiri ntchito zake zimakhala monga gasi wowawasa, CO₂-yokhala ndi gasi, jakisoni wamadzi a m'nyanja, madzi opangidwa, chloride{2}}zamadzimadzi okhala ndi chloride, media refinery media, petrochemical process lines, ndi kulumikizana ndi mapaipi akunyanja.

Poyerekeza ndi flange yolimba, zokutira zowotcherera zimalola kuti polojekiti igwiritse ntchito dzimbiri-zosagwira ntchito pamalo olumikizirana ofunikira. Izi zimathandiza kuwongolera mtengo wazinthu ndikusunga thupi la flange kukhala lolimba mokwanira pagulu lokakamiza lofunikira. Zida za Octal Steelweld zokutira zopangira flangesmu weld neck, blind, RTJ, slip-pa, ndi makonda awo{1}mitundu, kuphatikizaAloyi 625 / Inconel 625 Weld Overlay Flange, Aloyi 825, 316L, 904L, chitsulo chosapanga dzimbiri cha duplex, ndi zosankha zapamwamba kwambiri zosapanga dzimbiri zosapanga dzimbiri.

Chophimba cha weld overlay chimapangidwa kuchokera kuzinthu ziwiri zakuthupi. Kupanga koyambira kumapereka mphamvu zamakina, kutsika kwamphamvu, geometry ya flange, ndi kukhazikika kwa bolting. Zinthu zokutira zimapereka kukana kwa dzimbiri kumbali yonyowa.

Zida zodziwika bwino ndi monga ASTM A105 yama flanges opangidwa ndi chitsulo cha kaboni, A350 LF2 yotsika-ntchito yotentha, A694 F52 / F60 / F65 / F70 yamakina apamwamba{9}}otulutsa mpweya, ndi magiredi A182 azitsulo za aloyi, chitsulo chosapanga dzimbiri, duplex, kapena zofunikira kwambiri.

The CRA overlay alloy iyenera kusankhidwa molingana ndi njira yeniyeni. Mtengo wokha si maziko osankhidwa otetezeka. H₂S, CO₂, chloride concentration, kutentha kwa ntchito, kuthamanga, madzi, pH, oxygen ingress, ndi zipangizo zamapaipi zolumikizidwa zimatha kukhudza kusankha komaliza kwazinthu.

Zaflange cladding weld zokutiramapulojekiti, alloy yokutira iyeneranso kufanana ndi gawo lolumikizidwa. Ngati flange yalumikizidwa ndi chitoliro, CRA-chitoliro cha mizere, chitoliro, chitoliro, corrosion{2}}valavu yosagwira, spool, kapena manifold, malire akukutira akuyenera kuwunikidwanso kuti chitsulo chosatetezedwa cha kaboni chisawonekere panjira.

Malo okutira sizinthu zazing'ono. Imasankha mtengo, chilolezo cha makina, kukula kwake, komanso ngati flange ingatetezedi malo onyowa. Cholemba chogulira chonena kuti "Kuphimba kwa CRA kumafunika" nthawi zambiri sikokwanira. Chojambulacho chiyenera kuwonetsa ndendende pomwe gawo la weld overlay likufunika.

RTJ weld overlay flanges amafuna chisamaliro chowonjezera. Mphepete mwa mphete ndi malo osindikizira, osati mbiri yokhayokha. Pambuyo pakukuta ndi kukonza komaliza, poyambira ayenera kuyang'ana kukula kwake, momwe alili pamwamba, zotsatira za PT, ndi makulidwe otsalawo.

Kwa ma flange amaso okwezeka, malo olumikizirana ndi gasket ayenera kuwongoleredwa pambuyo poyang'ana komaliza. Wosanjikiza wowoneka bwino wa CRA sikokwanira ngati kusindikiza kumaso kusalala, kumalizidwa, kapena makulidwe pambuyo pakukonza sikukwaniritsa zofunikira pakujambula.

Kupanga kwaweld zokutira zopangira flangesndi wosiyana ndi wamba flange Machining. Njirayi iyenera kuganizira za kuwotcherera, chilolezo cha makina, chemistry yomaliza, ndi kusindikiza pamwamba pa geometry nthawi yomweyo.

Njira yabwino yopangira zinthu nthawi zambiri imakhala ndi izi:

1. Base forging review
Zida za thupi la flange, nambala ya kutentha, muyezo wopangira, kalasi yokakamiza, mtundu woyang'ana, ndi MTC zimawunikidwa ntchito yokutira isanayambe. Gawoli likutsimikizira kuti maziko a flange okha amagwirizana ndi dongosolo logulira ndi kujambula polojekiti.

2. Kutsimikizira{1}}zoni ndi machining allowance
Kubowola, nkhope yokwezeka, RTJ groove, nkhope yakhungu yamkati, kusintha kwa khosi, kapena malo ena onyowa amawunikidwanso pachithunzichi. Ndalama zokwanira zopangira makina ziyenera kukonzedwa kuti malo omaliza opangidwa ndi makina azisungabe gawo lofunikira la CRA.

3. WPS / PQR ndi kukonzekera zitsulo zodzaza
Njira zokutira zowotcherera, zitsulo zodzaza, kuwotcherera, kuchuluka kwa kutentha, kutsatizana, ndi kuyenerera kwa welder ziyenera kukonzedwa musanapangidwe. Izi ndizofunikira makamaka pa Alloy 625, Alloy 825, duplex, ndi super duplex ntchito zokutira.

4. CRA weld over overlay deposition
Chosanjikiza cha CRA chimayikidwa ndi owotcherera oyenerera kapena owotcherera. Mingala-zowonjezera zosanjikiza nthawi zambiri zimagwiritsidwa ntchito chifukwa gawo loyamba limatha kuchepetsedwa ndi chitsulo choyambira. Kuvomereza komaliza kuyenera kukhazikitsidwa pamtunda womalizidwa pambuyo pokonza.

5. Kuyeretsa kwapakatikati ndi kuyang'anira mawonekedwe
Kuyeretsa pakati pa zodutsa kumathandiza kupewa slag, kuipitsidwa, kusowa kwa kuphatikizika, ndi zolakwika zapamtunda. Sitepe iyi si ntchito yokongoletsa; nthawi zambiri imasankha ngati kuyendera kwa PT kudzadutsa bwino.

6. Unikaninso PWHT ngati pakufunika
Zida zina zoyambira kapena mapulojekiti angafunike positi-mankhwala otenthetsera weld. PWHT iyenera kuwunikiridwa isanapangidwe chifukwa imatha kukhudza kuuma, kuwongolera mawonekedwe, ndi dongosolo lomaliza loyendera.

7. Kupanga movutikira komanso kukonza komaliza
Pambuyo kuwotcherera, flange imapangidwa kuti ikhale yomaliza, kuyang'ana, RTJ poyambira, dzenje la bawuti, ndi miyeso yosindikiza. Apa ndipamene kupanga mosasamala kungachotse zinthu zambiri za CRA. Kuchuluka kwa zokutira zomalizidwa kocheperako kuyenera kusungidwa pambuyo pa gawoli.

8. Kuwunika komaliza ndi kubwereza zolemba
PT, PMI, kuuma, ferrite, kuyang'ana kowoneka bwino, ndikuwunika komaliza kwapamwamba kumachitika molingana ndi zomwe polojekiti ikufuna. Malipoti ayenera kufananizidwa ndi chizindikiro cha flange, nambala ya kutentha, ndi mndandanda wazonyamula musanatumizidwe.

Kuti mumve zambiri zaukadaulo wa njira yokutirani weld kudutsa mapaipi, flange ndi ma mbale, onani zathuweld overlay guide.

Pama flange akuwotcherera, kuyang'anira kuyenera kutsimikizira zinthu ziwiri: base flange imakwaniritsa zofunikira zamakina ndi mawonekedwe, ndipo zokutira za CRA zimakwaniritsa dzimbiri-zofunika pazantchito. Ngati mbali iliyonse ili yofooka, flange ikhoza kulephera kuvomereza polojekiti.

PMI pambuyo makinandizofunikira makamaka. Ngati PMI imangochitika musanayambe kupanga makina omaliza, sizingawonetsere mawonekedwe omwe angalumikizane ndi sing'anga. Kwa wowawasa kapena wa chloride{2}}pa ntchito yobereka, malo omaliza a CRA ndi malo omwe ndi ofunika kwambiri.

Pazotumiza kunja, kufananitsa zikalata ndi gawo laulamuliro wabwino. Nambala yotentha, chiphaso cha zinthu zoyambira, chowonjezera, lipoti la PMI, lipoti la PT, mndandanda wazonyamula, ndi chizindikiro cha flange ziyenera kulumikizana bwino. Izi zimachepetsa chiopsezo cholandira kuchedwa koyang'anira komwe kumachitika chifukwa chosowa kapena zolemba zosagwirizana.

Ma weld overlay flanges amagwiritsidwa ntchito pamene thupi la flange limafunikira mphamvu yamphamvu, koma madzimadzi-pofunika kuti asatayike ndi mpweya wowawasa, chloride{1}wokhala ndi madzi, madzi a m'nyanja, acidic media kapena aggressive process fluids. Mosiyana wambaweld pa flangeosankhidwa makamaka kugwirizana chitoliro ndi kalasi kuthamanga, ndi kuwotcherera pamwamba flange ayenera kulamulira CRA pamwamba poyera sing'anga.

• Kupanga ndi kusonkhanitsa gasi wowawasa

Mu ntchito ya H₂S-yokhala ndi flange, thupi la flange lingafunike chitsulo cha carbon kapena low alloy steel mphamvu, pamene chonyowacho chimafunika chitetezo cha CRA. Zowonjezera za Alloy 625 zimawunikidwa nthawi zambiri pamtundu wamtunduwu. Kuwongolera kuuma, chikhalidwe cha HAZ, ndi zofunikira za NACE MR0175 / ISO 15156 ziyenera kuyang'aniridwa musanapangidwe.

• Kuthira madzi a m'nyanja ndikupanga mizere yamadzi

Madzi a m'nyanja ndi madzi opangidwa akhoza kukhala ndi ma chloride, mpweya wosungunuka, mchenga, sikelo ndi zina zoyendetsa dzimbiri. Kukumbatirana kobowola, kumaso kokwezeka, ndi khosi lopindika khosi zimathandizira kuchepetsa kuopsa kwa chitsulo cha kaboni pamalo olumikizirana-pamadzi.

• Offshore ndi subsea interfaces

Ma projekiti aku Offshore nthawi zambiri amafunikira kuwunika mozama komanso zolemba. RTJ grooves, gasket faces, manifold connections, ma valve interfaces ndi compact spool connections angafune PMI, PT, hardness test, ferrite test, dimensional inspection ndi malo ochitira umboni-wachitatu.

• Njira zoyeretsera ndi petrochemical process

Acidic process media, chloride{{0}yokhala ndi madzi,{1}}kutentha kwambiri-kutentha kwambiri komanso kusakanikirana kwa dzimbiri kungafunike chitetezo cha CRA pamalo onyowa. Kukulungidwa kwa weld kumapangitsa kuti polojekiti igwiritse ntchito mphamvu yokhazikika-yokhala ndi flange pomwe imathandizira kuti zisawonongeke pomwe sing'anga imalumikizana ndi chinthucho.

• Chitoliro, CRA-chitoliro chokhala ndi mizere ndi zolumikizira zingapo

Ma weld overlay flanges amagwiritsidwa ntchito ndi chitoliro chovala, CRA-paipi ya mizere, chitoliro cha weld overlay, valves, spools ndi manifolds. Malo okutira akuyenera kulumikizidwa ndi gawo lolumikizidwa kuti njira ya dzimbiri-yosawonongeka ipitirirebe.

Chitsulo cha Octalimathandizira izi kuyambira pakuwunikiridwa kwazinthu mpaka kutulutsidwa kotumizidwa. Timathandizira kugwirizanitsa kalasi yoyambira ya flange, zitsulo zophatikizika, makulidwe a zokutira, mtundu woyang'ana, zofunikira za RTJ groove, ndi kuwunika kusanayambe kupanga, kotero kuti flange yoperekedwayo imakhala yosavuta kutsimikizira poyang'aniridwa.

Ubwino wathu siwongopereka osiyanasiyana, komakugwirizana kwa polojekiti: kufufuza kwa flange, kuwongolera pamwamba pa CRA, kukonza makina komaliza, kuyang'ana kwa PMI / PT / kuuma, -kuthandizira kuyang'anira gulu lachitatu, ndi kukonzekera zikalata zotumizidwa kunja kungathe kuyendetsedwa mumtundu umodzi. Izi zimachepetsa chiwopsezo cha zinthu zosemphana, kukula kosakulidwe, malipoti osowa, kapena kusindikiza{2}}kuwonongeka kwa nkhope musanatumizidwe.

Pazinthu zotumizira kunja, Octal Steel imayang'aniranso chitetezo chonyamula pamalo opangidwa ndi makina, ma RTJ grooves, nkhope zokwezeka, mabowo a bolt, ndi zolembera za flange, zomwe zimathandiza flange kuti ifike ndi zomwe zidapangidwa komanso phukusi lokonzekera kuti liwunikenso ntchito.

Lumikizanani tsopano

FAQ

 

01.Kodi chikuyenera kunenedwa chiyani poyitanitsa ma weld overlay flanges?

Ogula afotokoze mtundu wa flange, kukula kwake, kalasi ya kukakamizidwa, mtundu woyang'ana, zinthu zoyambira, zowunjika, malo okutira, ndi makulidwe ocheperako omalizidwa pambuyo pokonza makina. Pazithandizo zofunika kwambiri, PMI, PT, hardness, ferrite test, WPS/PQR, ndi zofunika-zoyendera gulu lachitatu ziyeneranso kulembedwa pamaoda ogula.

02.Ndi madera ati a weld overlay flange omwe amafunikira CRA zokutira?

Madera omwe amakutirana ambiri ndi bore, nkhope yokwezeka, RTJ groove, kusintha kwa khosi, nkhope yamkati yakhungu, ndi zina zonyowa zomwe zikuwonetsedwa pachithunzichi. Malo okutidwawo akuyenera kulembedwa bwino chifukwa chitsulo chilichonse cha kaboni chomwe chili mumsewu ukhoza kukhala pachiwopsezo cha dzimbiri.

03.Chifukwa chiyani Inconel 625 imagwiritsidwa ntchito popanga ma weld overlay flanges?

Inconel 625 / Alloy 625 nthawi zambiri amasankhidwa kuti azipanga gasi wowawasa, jakisoni wamadzi a m'nyanja, madzi opangidwa, mapaipi akunyanja, ndi chloride{2}}zonyamula. Kuti avomerezedwe, chotchingira chomaliza chopangidwa ndi makina chiyenera kutsimikiziridwa ndi PMI kapena cheke chamankhwala, chifukwa kuchepetsedwa kwachitsulo choyambira kumatha kukhudza chemistry yapamtunda.

04.Kodi makulidwe ophimbika omalizidwa a ma weld over overlay flanges ndi chiyani?

Ma projekiti ambiri amatchula makulidwe ocheperako a CRA, nthawi zambiri kuzungulira3.0 mm pambuyo pa makina omaliza, koma mtengo weniweniwo uyenera kutsatiridwa ndi kujambula kwa polojekiti kapena ndondomeko yake. Mfundo yofunika kwambiri ndikutsimikizira makulidwe otsalawo pamalo onyowa, osati monga-weld deposit.

Zitsimikizo

 

Chizindikiro cha CE

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