Yuav ua li cas SA 387 Qib 11 Alloy Steel Phaj daws Koj Lub Boiler thiab Cov Khoom Siv Hluav Taws Xob Cov Khoom Siv Taub Hau Rau Kev Lag Luam?

Kev lag luam tej yaam num-los ntawm kev tsim hluav taws xob mus rau petrochemicals- tso siab rau boilers thiab cov hlab ntsha siab kom ua haujlwm. Txawm li cas los xij B2B cov neeg yuav khoom thiab cov kws tsim khoom tsis tu ncua ntsib cov khoom siv- mob taub hau: carbon steel daim hlau corrode ntxov ntxov, qis- alloy steels tsis muaj thermal stability, siab -nickel alloys ntws cov peev nyiaj, thiab tsis yog - cov ntaub ntawv ua raws li cov ntaub ntawv pov thawj tsis ua tiav.SA 387 Qib 11 alloy steel phajyog ib qho pov thawj kev daws teeb meem uas hais txog cov ntsiab lus mob no lub taub hau-rau, xa cov kev sib txuam tsis tshua muaj kev ua tau zoo, kev ua raws, kev ua tau zoo, thiab tus nqi- kev ua tau zoo- ua rau nws mus - rau cov khoom siv rau kev lag luam uas kev ntseeg siab tsis yog - sib tham tau.

Corrosion yog qhov ua rau ntawm boiler thiab siab hlab ntsha tsis ua hauj lwm nyob rau hauv industrial chaw. Cov pa roj carbon zoo li qub xeb thiab qhov hauv av ntub, tshuaj lom neeg - nplua nuj ib puag ncig, thaum qis- alloy steels tawm tsam nrog sulfide lossis acidic media.SA 387 Qib 11 siab lub nkoj steel phaj's chromium-molybdenum (Cr-Mo) muaj pes tsawg leeg tshem tawm qhov kev pheej hmoo no: 1.00-1.50% chromium tsim cov txheej tiv thaiv oxide, thiab 0.45-0.65% molybdenum resists pitting thiab stress corrosion cracking (SSCC). Lub tuam txhab mining hauv Australia tau hloov carbon steel nrogSA 387 Qib 11 kub dov alloy steel phajnyob rau hauv nws cov kua qaub leaching siab hlab ntsha-corrosion tus nqi poob los ntawm 70%, ncua kev pab cuam lub neej ntawm 3 mus rau 12 xyoo. ThaumA302 Qib B carbon steel phajmuaj kev tiv thaiv corrosion tsis zoo, SA 387 Qib 11 qhov sib ntxiv ntawm molybdenum ua rau nws zoo dua nyob rau hauv sulfur -muaj lossis acidic ua haujlwm.

Muaj boilers thiab cov hlab ntsha siab tiv taus cua sov / cua txias thiab ua kom kub siab (400-}600 degree), ua rau cov hlau zoo li nkag (deform mus tas li) lossis tawg los ntawm thermal qaug zog. SA 387 Qib 11's normalized (Class 1) lossis quenched-thiab-tempered (Class 2) kev kho cua sov ua kom muaj qhov ruaj khov microstructure uas tiv thaiv cov teeb meem no. Nws lub zog tensile tseem zoo ib yam ntawm qhov kub thiab txias, thiab nws cov creep kuj outperforms carbon steel los ntawm 300-400%. Ib lub chaw tsim hluav taws xob hauv Brazil sivSA 387 Qib 11 kub dov boiler steel phajrau nws cov boiler superheaters- tshem tawm thermal qaug zog tsis ua hauj lwm uas yav tas los tshwm sim txhua 18 lub hlis. Rau tej yaam num uas yuav tsum tau nruab nrab -kub resilience (tsawg dua los yog sib npaug rau 450℃),A302 Qib B kub dov boiler steel phajyog lwm txoj kev siv tau, tab sis SA 387 Qib 11 ua tau zoo ntawm qhov kub siab dua.

Cov phiaj xwm kev lag luam feem ntau xav tau ASME, ISO, lossis cov ntawv pov thawj hauv zos - tsis yog - cov ntaub ntawv ua raws ua rau muaj nqi qeeb lossis cov khoom siv tsis raug.SA 387 Qib 11 alloy steel phajtau ua raws li ASME SA387 / SA387M cov qauv, ua tau raws li qhov yuav tsum tau ua rau ASME Tshooj VIII (cov hlab ntsha siab) thiab Tshooj I (boilers). Nws los nrog cov ncauj lus kom ntxaws zeb xeem ntawv (MTRs) txheeb xyuas cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab kev kho cua sov- ua kom yooj yim rau kev soj ntsuam thiab ntawv pov thawj. Tsis zoo li cheeb tsam- cov hlau tshwj xeeb, nws qhov kev lees paub thoob ntiaj teb ua kom muaj kev sib txuam tsis sib haum rau hauv kev hla- cov phiaj xwm ciam teb. Ib tus neeg ua haujlwm European EPC tau tshaj tawm tias txuag 3 lub hlis ntawm cov sijhawm ua haujlwm los ntawm kev siv SA 387 Qib 11 es tsis yog -ASME ntawv pov thawj alloy, vim nws yuav tsum tsis muaj kev sim ntxiv rau cov neeg siv khoom thoob ntiaj teb.

Complex boiler thiab siab hlab ntsha tsim xav tau cov ntaub ntawv uas yooj yim rau weld, txiav, thiab daim ntawv. SA 387 Qib 11 cov pa roj carbon sib npaug (tsawg dua lossis sib npaug li 0.42%) ua kom muaj kev sib tw zoo heev - nws tuaj yeem welded siv cov txheej txheem txheej txheem (SMAW, GMAW) nrog tsawg preheating (80-120℃rau Chav Kawm 1), txo cov nqi zog thiab lub sijhawm tsim khoom. Nws ductility (elongation Ntau dua los yog sib npaug li 22%) txhawb nqa txias khoov thiab kev cai tsim yam tsis muaj cracking, hloov mus rau cov duab nyuaj xws li boiler nruas lossis nkhaus siab lub nkoj plhaub. Lub khw muag khoom hauv Teb Chaws Asmeskas tau tshaj tawm txog 20% ​​nce hauv kev tsim khoom tom qab hloov mus rauSA 387 Qib 11 siab lub nkoj steel phaj, raws li nws yuav tsum tau kho weld tsawg dua siab -hardness alloys.

High-nickel alloy daim hlau muaj kev ua tau zoo tshaj plaws tab sis tus nqi 2-3x ntau dua SA 387 Qib 11, straining project pob nyiaj siv. SA 387 Qib 11 muab 90% ntawm qhov ua tau zoo ntawm 50-60% ntawm tus nqi, ua rau nws qhov zoo tshaj qhov sib npaug ntawm qhov zoo thiab pheej yig. Nws lub neej ua haujlwm ntev (15-20 xyoo) thiab kev saib xyuas tsis zoo yuav tsum txo tag nrho cov nqi ntawm cov tswv cuab (TCO) los ntawm 40-50% piv rau carbon steel. Cov nroj tsuag tshuaj nruab nrab tau txuag tau $ 1.6 lab los ntawm kev xaiv SA 387 Qib 11 tshaj cov nickel alloys siab rau nws cov hlab ntsha-tsis muaj kev cuam tshuam txog kev nyab xeeb lossis kev ua haujlwm.

Rau kev lag luam project B2B cov neeg yuav khoom nkees ntawm cov khoom siv - mob taub hau,SA 387 Qib 11 alloy steel phajyog ib qho kev daws teeb meem - nres. Nws daws cov corrosion, thermal qaug zog, ua raws, fabrication, thiab kev cov nyom nyiaj txiag, xa cov kev ntseeg siab thiab kev ua tau zoo uas cov kev lag luam xav tau. Txawm hais tias koj tab tom tsim lub boiler tshiab, txhim kho lub nkoj siab, lossis tswj kev hla - ciam teb EPC qhov project, qhov no muaj ntau yam hlau hlau phaj ua kom koj cov khoom xaiv tsis muaj kev vam meej.

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Yog tias koj xav paub ntxiv txog GNEE cov khoom, koj tuaj yeem xa email raualloy@gneesteelgroup.com.Peb zoo siab tshaj los pab koj.