"Xaiv qhov tsis ncaj ncees lawm qib Inconel tuaj yeem ua rau koj raug nqi ntau txhiab hauv kev siv lub sijhawm ua haujlwm tsis zoo lossis tsis ua haujlwm ntxov ntxov. Ntawm no yog yuav txiav txim siab li cas."
Inconel - tsev neeg ntawm npib tsib xee-chromium superalloys - yog lub caj qaum ntawm kev lag luam uas xav tau lub zog loj thiab kev tiv thaiv corrosion, los ntawm aerospace turbines mus rau tob - hiav txwv roj rigs. Tab sis tsis yog txhua tus Inconel yog tsim sib npaug. Qhov sib txawv ntawm Inconel 718 thiab 625 tej zaum yuav zoo li me me ntawm daim ntawv, tab sis xaiv qib tsis raug tuaj yeem ua rau:
Tus nqi machining nyuaj(Inconel 718 ua hauj lwm- hardens aggressively)
Unplanned downtime(625 zoo dua rau cov dej ntsev tab sis tsis muaj zog dua 718)
Kev nyab xeeb(piv txwv li, thermal qaug zog hauv mis- tshwj xeeb combustor qhov chaw)
Inconel 718 vs . 625: Cov khoom tseem ceeb piv
Cov khoom sib xyaw & khoom
| Khoom | ib 718 | Ib 625 |
|---|---|---|
| Kev sib xyaw | Ni (52.5%), Cr (19%), Fe (18.5%), Nb + Mo (5%) | Ni (58%), Cr (22%), Mo (9%), Nb (3.5%) |
| Tensile zog | 1,300 MPa (ntawm 20 degree) | 930 MPa (ntawm 20 degree) |
| Yield zog | 1,100 MPa | 690 MPa ua |
| Max Service Temp | 700℃(1,292℃F) | 980℃(1,796℃F) |
| Machineability | Tsis zoo (15% ntawm dawb- txiav hlau) | Nruab nrab (25% ntawm dawb- txiav hlau) |
| Corrosion Resistance | Zoo heev (acids, chlorides) | Superior (marine, pitting, crevice corrosion) |
| Thermal Expansion | 13.0 μm / m℃(20-100 degree) | 12.8 μm / m℃(20-100 degree) |
Cov Ntsiab Lus Txiav Txim Siab
Xaiv Inconel 718 thaum koj xav tau:
✓ Cov cuab yeej siv zog siab dua rau cov turbine disks, bolts, thiab siab - kev nyuaj siab fasteners
✓ Kev qaug zog zoo dua rau cov khoom siv hauv aerospace
✓ Cov nqi txuag (feem ntau 15-20% pheej yig dua 625 hauv cov nqi raw khoom)
Xaiv Inconel 625 thaum koj xav tau:
✓ Extreme corrosion resistance rau marine hardware, chemical processing
✓ Kev ua tau zoo tshaj plaws hauv oxidizing ib puag ncig mus txog 980 degree
✓ Yooj yim machining thiab vuam yam ntxwv
Technical Notes for Engineers
Kev kho cua sov:
718 yuav tsum muaj hnub nyoog hardening (720℃rau 8 teev) rau cov khoom zoo
625 yog tov annealed (980℃ces dej quenched)
Weldability:
625 welds yooj yim dua nrog tus qauv TIG / MIG txoj kev
718 xav tau tom qab-weld kho cua sov kom tsis txhob muaj mob- hnub nyoog tawg
Tiag -Cov Piv Txwv Daim Ntawv Thov Ntiaj Teb
Inconel 718 Siv Case:
GE Aviation turbine cav mounts
SpaceX foob pob hluav taws cav thrust chambers
Roj & roj qhov dej qhov chaw
Inconel 625 Siv Case:
Submarine seawater li qub
Chemical reactor cladding
Nuclear pov tseg ntim ntim
Daim ntawv thov – Qib twg los xaiv
Daim ntawv thov Inconel 718
Aerospace Kev Lag Luam
Turbine hniav thiab disks nyob rau hauv dav hlau engine
Cav mounts thiab structural Cheebtsam
Afterburner qhov chaw hauv tub rog aircraft
Kev lag luam roj thiab roj
Cov cuab yeej downhole rau qhov tob tob drilling
Cov khoom xyaw ntawm Wellhead thiab cov ntoo Christmas
Siab - lub twj tso kua mis shafts
Lub zog tiam
Gas turbine combustor Cheebtsam
Nuclear reactor core Cheebtsam
Inconel 625 Daim ntawv thov
Kev lag luam marine
Propeller shafts thiab submarine Cheebtsam
Seawater piping systems thiab li qub
Offshore platform khoom siv
Kev ua tshuaj lom neeg
Reactor hlab ntsha thiab liners
Thaum tshav kub kub exchangers thiab distillation kab
Cov khoom siv tsim cov kua qaub
Cov ntawv thov tshwj xeeb
Nuclear pov tseg systems
Pollution tswj scrubbers
Pharmaceutical processing khoom
Cov lus nug nquag nug txog Inconel 718 thiab 625
Q: Puas yog Inconel 718 muaj zog dua 625?
A: Yog, Inconel 718 muaj zog tensile ntau dua (1,300 MPa vs . 930 MPa), ua rau nws zoo tagnrho rau cov khoom siv. Txawm li cas los xij, Inconel 625 tswj cov khoom siv kho tshuab zoo dua ntawm qhov kub siab tshaj 700 degree.
Q: Puas yog Inconel 718 xeb lossis corrode?
A: Txawm hais tias muaj kev xeb heev- tiv taus, Inconel 625 muab kev ua haujlwm zoo tshaj hauv cov dej ntsev thiab tshuaj lom neeg vim nws cov ntsiab lus molybdenum siab dua (9% vs . 3% hauv 718).
Q: Vim li cas Inconel 718 nyuaj rau tshuab?
A: Peb lub laj thawj tseem ceeb:
Ua hauj lwm ceev ceev thaum txiav
Abrasive gamma prime precipitates
Siab txiav kub
Kev daws: Siv cov cuab yeej ceramic lossis CBN nrog siab -siab txias txias (70+ bar)
Q: Ob qho tib si puas tuaj yeem welded?
A: Yog, tab sis nrog cov kev cai sib txawv:
Inconel 718: Yuav tsum tau tshaj tawm -weld kev kho cua sov kom tsis txhob tawg
Inconel 625: Ntau weldable nrog cov txheej txheem TIG / MIG
Peb lub Hoobkas
Peb cov khoom siv nickel-raws li cov khoom siv hlau yog tsim los ntawm cov khoom siv niaj hnub precision manufacturing puag. Lub Hoobkas tau nruab nrog lub tshuab nqus tsev vacuum induction melting (VIM), electroslag remelting (ESR), thiab multi-directional forging hydraulic units, kom ntseeg tau tias txhua kauj ruam los ntawm melting mus ua tau raws li aerospace- cov qauv qib. Los ntawm kev tswj cov txheej txheem digital, peb ua tiav kev tswj xyuas meej ntawm cov khoom siv purity, grain loj, thiab txhua yam khoom. Txhua batch ntawm cov khoom yog nrog los ntawm traceable melting cov ntaub ntawv thiab thib peb - cov ntaub ntawv pov thawj (xws li DNV-GL, ABS, aerospace qauv, thiab lwm yam), kom ntseeg tau qhov tseeb thiab kev ntseeg siab ntawm cov ntaub ntawv kev ua tau zoo.
Ntim thiab shipping
Peb txais yuav cov qauv kev lag luam siab tshaj plaws rau kev ntim khoom tiv thaiv: tag nrho cov pas nrig / daim hlau raug kho nrog kev tiv thaiv- xeb tiv thaiv thiab ntxiv dag zog rau cov yeeb yaj kiab tsis muaj dej thiab cov khoom ntoo; precision Cheebtsam yog ntim nrog kev cai ua npuas ncauj dividers thiab lub tshuab nqus tsev sealing. Los ntawm peb cov txheej txheem kev sib koom ua ke ntawm kev tsim khoom, peb cog lus tias cov khoom lag luam tshwj xeeb yuav raug npaj thiab xa tuaj tsis pub dhau 7-15 hnub ua haujlwm tom qab kev txiav txim pom zoo thiab cov ntsiab lus kev ua tiav.
