1. Dab tsi yog Gh3030 superalloy, thiab dab tsi ua rau nws haum rau cov ntawv thov piping hauv cov chaw muaj kev?
GH3030 yog ib npib tsib xee {{txhwb} chromium {2} Raws li cov qhab nia hauv Suav teb zoo li tsis paub n06003 thiab cov qib Lavxias эи435. Nws qhov kev haum tshwj xeeb rau siab - kub piping stems los ntawm kev sib xyaw ntawm nws cov tshuaj lom neeg cov tshuaj lom neeg thiab cov khoom muaj txiaj ntsig.
Thawj lub caij nyoog yog npib tsib xee (ntau dua los yog sib npaug nrog 75%, uas muab cov tshuaj tiv thaiv oxidation thiab corrosion thiab corrosion, raws li ib tug ruaj khov Austenitic Matrix. Ib qho tseem ceeb chromium cov ntsiab lus (19 {{}} 22%) yog qhov tseem ceeb rau nws cov khoom siv chromium, tus kheej kho cov hlau ua kom zoo nkauj los ntawm kev cuam tshuam ntxiv ntawm kev kub siab ntxiv.
Tsis zoo siab ntau siab dhau los - Hardened Superalloys, GH3030 yog cov khoom siv dag zog. Qhov no txhais tau tias cov ntsiab lus zoo li tungsten (1.5-2.5%) thiab cov pa roj carbon distal, ua rau muaj kev tsis sib haum xeeb txav, yog lint daws lub zog thiab nce qhov kub. Cov txheej txheem kev siv tshuab no yog siv tau zoo rau cov ntawv thov kom muaj zog thiab muaj kev tsim nyog txog li 800 degree}℃(1472℃f}}}℃f).
Rau cov ntawv thov luam tawm, qhov no txhais tau:
Siab - kub lub zog: muaj peev xwm tiv thaiv sab hauv cov xovxwm thiab sab nraud uas tsis muaj kev tiv thaiv loj tsis muaj kev tiv thaiv.
Oxidation tiv thaiv: ntev kev pab lub neej nyob rau hauv oxidizing cua tsis muaj ntau dhau phab ntsa thinning lossis scaling.
Formancion thiab Weldability: Nws tuaj yeem yooj yim kub -}}}}}}}}}}}}}}}}}}}} Ua haujlwm zoo li Tig vuam, ua fabrication thiab kev teeb tsa siv.
2. Hauv kev lag luam tshwj xeeb thiab cov ntawv thov yog GH3030 kav feem ntau ua haujlwm?
GH3030 kav yog ib cov khoom ua haujlwm ua haujlwm nyob rau hauv kev lag luam uas raug nqi- ua hauj lwm zoo rau qhov kub kom muaj qhov tseem ceeb. Lawv cov kev siv yog deem los ntawm kev ua kom zoo ntawm kev ua tau zoo, zuaj, feem ntau tsoo superalallloys zoo li Inconel 600 lossis 601.
Daim ntawv thov tseem ceeb muaj cov chaw muaj:
Aerospace Engineering: Qhov no yog thawj qhov chaw. GH3030 kav yog ntau yam siv nyob rau hauv cov dav hlau thiab pob zeb tshuab rau kev sib txuas, tso pa tawm, thiab tom qab cov khoom sib xyaw. Lawv thauj cov pa roj kub thiab roj av, ua haujlwm tsis tu ncua nyob rau hauv av heev thermal cycling thiab kev ntxhov siab vibrrational.
Lub tshuab hluav taws xob: hauv cov pa roj hluav taws xob tshuab rau cov nroj tsuag fais fab, GH3030 kav dej, gh3030 kav dej, gh roj ducting, thiab tubing ua kom muaj zog kub, thiab ua kom sov roj. Lawv ua kom ntseeg tau tias txoj haujlwm txhim khu kev qha uas superheated chav thiab sib txuas roj yog tam sim no.
Kev Ua: Ntau yam siab - kub muaj cov tshuab raj siv GH3030 kav dej ua ke, thiab kho cua sov retords sheaths. Lawv yog qhov zoo tshaj plaws rau cov cua nab nrog tswj carburizing lossis nruab nrab.
Petrochemical Secor: Thaum tsis yog rau kev txhim kho hnyav, lawv nrhiav tau siv hauv cov txheej txheem hluav taws xob rhaub dej thiab cov twj tso pa tawm ntawm cov pa taws uas oxidation yog qhov kev txhawj xeeb thawj.
Kev xaiv ntawm GH3030 Hla Stainless Hlau (piv txwv li, 310s) yog ua thaum kub tshaj qhov txwv tsis pub tshaj plaws ntawm stainless hlau (ib ncig ntawm 1100 degree). Hloov siab, nws yog xaiv dua superalalloys thaum lub siab corrosion tsis kam los yog lub zog ntawm cov alloys tsis tsim nyog, muab nqi txuag tseem ceeb.
3. Dab tsi yog qhov tseem ceeb fabrication thiab vuam kev txiav txim siab rau GH3030 alloy yeeb nkab?
Ua kom muaj kev vam meej fabrication ntawm GH3030 cov kav dej piping hinges ntawm kev nkag siab nws ua haujlwm hnyav thiab nws tshwj xeeb vuam metallgy.
Fabrication:
GH3030 ua haujlwm - hashens sai thaum lub sij hawm txias zoo li khoov lossis flaring. Yog li ntawd, hwj chim - Cov khoom siv pab tau zoo. Rau kev ua kom txias hnyav, analmediate annealing yog feem ntau tsim nyog los rov ua dua thiab tiv thaiv tawg. Annealing yog feem ntau ua ntawm 1050 {{8}℃(1922-2102℃(1922-2102 degrch) los tiv thaiv cov dej tsis muaj tshuaj thiab tiv thaiv carbide nag lossis nag lossis daus.
Vuam:
GH3030 yog suav tias yog muaj kev zoo heev weldability los ntawm cov txheej txheem fusiones, tshwj xeeb tshaj yog roj tungsten arc vuam (gtaw / tig).
Tus neeg sib koom ua tub rog: cov muab cov khoom siv uas pom zoo, xws li ernicrfe-7 lossis cov tub lim ntxiv rau hauv cov pob qij txha txhim kho.
Ua ntej {-}}}} Tu: Nrov Tu Siab Ntawm Weld Sib Koom Tes Thiab Cov Ntaus Cov Hlau yog Paramount. Txhua yam paug tsis huv {2 2}} roj, roj, pleev xim, thiab khij cov inks}}} yuav tsum tau muab tshem tawm. Txhua qhov chaw so, phosphorous, lossis txhuas tuaj yeem ua rau sawv khov kho thiab tawg ntawm qhov kub.
Preheating thiab sib txuam kub: preheating feem ntau tsis tas yuav tsum muaj rau cov ntu nyias. Txawm li cas los xij, rau tuab -}}}}}}}}}}}}}) degree) tuaj yeem pab tiv thaiv kom txhob muaj cov paj hlwb. Qhov tob tob, lub intertral kub yuav tsum tau tswj thiab khaws cia hauv qab 300℃F (150 degree) kom tsis txhob muaj kev tawm dag zog ntau dhau.
Tshaj tawm - Weld Kev Kho Mob Kub (PWHT) Txawm li cas los xij, ib qho kev daws teeb meem tag nrho tej zaum yuav ua rau tag nrho cov kev sib koom ua ke los ntawm vuam kev ntxhov siab thiab kev ua haujlwm txias, tshwj xeeb} qhov siab lossis kev siv cyclic.
4. Yuav ua li cas kev ua tau zoo ntawm GH3030 sib piv rau ntau cov hlau ntau dua li 304/316 thiab Advanced superalalloys zoo li Inconel 625?
POV THAWJ GH3030 yuav tsum muaj kev ua yeeb yam - versus- tus nqi sib piv.
thiab Austenitic stainless hlau (304, 316, 310):
Qhov kub: Qhov no yog lub sib txawv tseem sib txawv. Thaum 304/316 tau txwv txog 800℃F (427 degree) thiab 31030℃f (571-982 degree) nrog farior oxidation thiab scaling tsis kam.
Lub zog: Gh3030 khaws cov feem pua ntau dua ntawm nws chav - lub zog ntawm kev ntsuas kub ntxiv rau cov hlau tsis muaj zog.
Tus nqi: Gh3030 yog kim dua kim dua cov qauv stainless hlau vim nws cov kab npib siab thiab chromium cov ntsiab lus.
vs Advent superalloys (inconel 625, Haynes 230):
Lub zog & Corrosion Kuj: Alloys zoo li Inconel 625 yog cov dej num zoo tshaj plaws (los ntawm cov molybardum tsis kam (suav nrog pitting ntau ntawm cov xov xwm, suav nrog pitting thiab comprice corrosion. GH3030 tsis tuaj yeem phim qhov kev ua tau zoo no.
Lub peev xwm kub: Thaum Gh3030 yog muaj zog txog 1800℃F, alloys zoo li kub siab (txog 2100 degree) nrog zoo dua micritation ruaj khov.
Tus nqi: Inconel 625 Thiab cov alloys zoo sib xws yog suav tias kim dua GH3030 vim lawv cov kev cuam tshuam nyuaj (mo, kev koom tes ntau.
Hauv cov ntsiab lus: GH3030 lawb nyob hauv av nyob hauv av. Nws yog txoj kev hloov kho los ntawm stainless hlau thaum kub siab dhau lawm, thiab nws yog tus nqi rau kev xaiv thaum lub teeb meem ntawm inconel 625 tsis tas yuav tsum tau.
5. Dab tsi yog qhov tseem ceeb tswj hwm thiab tshuaj ntsuam xyuas cov txheej txheem rau kom ntseeg tau tias muaj kev ncaj ncees ntawm GH3030 kav?
Yog QC tsis yog - sib ceg rau high- Kev ua haujlwm sib xyaw. Rau GH3030 kav dej, qhov no suav nrog kev txheeb xyuas cov tshuaj, tshuab, thiab microstructural kev ncaj ncees.
Tshuaj Ntsuam Xyuas Tshuaj: Daim ntawv pov thawj rau cov qauv tshwj xeeb (piv txwv li GB / T 14992, AMS 5580) yog yuav tsum tau ua. Tshawb xyuas ntawm specrochemical tsom xam (oes lossis XRF) kom cov muaj kev sib xyaw ua ke yog nyob hauv cov kev txwv nruj me ntsis uas yuav tsum muaj rau kev ua tau zoo ib yam.
Kev Kuaj Me: Tensile cov ntawv xeem ntawm chav thiab nce qhov kub tshaj tawm lub zog, thiab elongation ua tau raws li cov cai. Hardness ntsuam xyuas (rockwell lossis brinell) kuj yog qauv.
Tsis - Kev sim tshuaj (ndt):
Kev tshuaj ntsuam sab hauv: Kev txheeb xyuas OD, ID, Phab Ntsa Thickness, thiab ovality.
Kev Ntsuam Xyuas Kev Pom: Kev kuaj xyuas cov kev tsis xws luag nplaim zoo li cov nqaws, laps, lossis khawb.
Zas kev sim tshuaj ntsuam (PT): rau kev kuaj tawm saum npoo - breaks tsis xws luag ntawm cov yeeb nkab xaus thiab weld thaj chaw.
RadioGraphic Xeem (RT) lossis Ultrasonic kev sim (UT): Cov no yog qhov tseem ceeb rau kev kuaj pom sab hauv thiab substracts. Seamless kav yog scrutinized rau suav lossis cov kav dej cig. Welded kav xav tau tag nrho- ntev rt lossis UT ntawm Weld Seam kom ntseeg tau tias nws yog qhov tsis sib xws, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg, lossis tsis muaj kev sib cav sib ceg.
Siab sim: Txhua cov txheej txheem yeeb nkab ua tiav lossis cov roj ua tiav ntau dua li nws cov qauv ua haujlwm siab thiab xau {{tighnness.
Metallographic Testing: Rau cov ntawv thov tseem ceeb, ib qho qauv yuav raug rau cov ntsiab lus me me, thiab qhov tsis muaj cov ntsiab lus ntawm cov qib qis, ua kom muaj kev kho cua sov tau ua kom raug.
Qhov ntau {- Fayed qc txoj hauv kev uas txhua qhov ntev ntawm GH3030 cov yeeb nkab xa mus rau qhov kev pabcuam uas xav tau.
