Nyob rau hauv thaj teb ntawm siab -}} agited alloys, Inconel 718 thiab Stellite 6 yog ob lub siab-}}} paub cov ntaub ntawv hais txog. Txawm hais tias nkawd ob leeg muaj kev ua tau zoo heev hauv qhov chaw hnyav, muaj cov tshuaj muaj kuab lom, cov khoom siv mechanies, thiab lwm yam.
Tshuaj Muaj Tshuaj
Inconel 718 yog npib tsib xee - based supalloy. Nws qhov tshuaj cheepition yog npib tsib xee (kwv yees li 50%), nrog kev txiav txim siab ntawm chromium (txog {{%) ntxiv. Tsis tas li ntawd, nws muaj niobium (txog}}}}%), molybdenum (txog}%), thiab ib qho me me ntawm txhuas, thiab lwm yam. Qhov no muaj inconel 718 zoo siab - kub lub zog thiab corrosion tsis kam.
Stellite 6 yog cobalt - Raws li alloy. Cobalt yog qhov tseem ceeb (hais txog 50 - 65%). Nws tseem yuav muaj chromium (txog 27 - 32%), tungsten (txog}%), thiab ib qho me me ntawm cov pa roj carbon), thiab ib qho me me, thiab lwm yam. Cov ntsiab lus siab ntawm cobalt thiab chromium xaus stellite 6 nrog cov khoom zoo thiab oxidation tsis kam.
Cov Khoom Siv Neeg Kho Tshuab
Siab - kub kev ua tau zoo
Inconel 718 tuaj yeem tswj cov khoom siv zoo thaum muaj kev kub siab. Nws muaj lub zog tensile muaj zog thiab tawm los lub zog hauv qhov ntsuas kub ntawm 650 - 700 degree. Piv txwv li, nws lub zog tensile ntawm 650℃tseem tuaj yeem ncav cuag ntau dua 1000 MPa, uas ua rau nws haum rau cov khoom ua haujlwm ntawm qhov chaw siab ntev.
Stellite 6 kuj muaj qee qhov siab - kub tsis kam, tab sis nws siab {418. Txawm li cas los xij, nws muaj peev xwm tswj tau zoo thaum muaj qhov kub. Txawm nyob ntawm 600 degree, nws hardness tseem tuaj yeem cia siab dua hrc 30, uas tau txais txiaj ntsig zoo heev rau kev tawm tsam ntawm kev kub.
Hnav Tsis kam
Stellite 6 muaj npe nrov rau nws cov coj zoo heev. Vim tias muaj cov carbides nyuaj (xws li chromium carbide thiab tungsten carbide) nyob rau hauv nws cov qauv, nws muaj zog tsis kam mus rau Adhesive hnav, cov abrasive hnav, thiab ruam hnav. Hauv kev coj ua, stellite 6 feem ntau qhia tau ntev ntev lub neej kev pab cuam ntev dua li lwm cov alloys hauv kev hnyav hnav ib puag ncig.
Cov coj tsis kam ntawm inconel 718 yog qhov sib piv nrog rau stellite 6. Txawm hais tias nws muaj cov kev hnav tawv me me, nws yog qhov ntau dua cov kev ua kom muaj kev phom sij lossis kev hnav khaub ncaws.
Corrosion Kuj
Ob leeg Inconel 718 thiab Stellite 6 muaj cov zoo corrosion tsis kam, tab sis lawv muaj cov txiaj ntsig sib txawv hauv cov cheeb tsam sib txawv.
Inconel 718 muaj kev tawm tsam corrosion zoo tshaj plaws hauv ntau cov lus qhia xws li acids, alkalis, thiab cov ntsev. Nws tuaj yeem tiv thaiv kev xeb ntawm sulfuric acid, hydrochloric acid, thiab dej hiav txwv rau qee yam, yog li nws tau siv dav hauv cov tshuaj thiab marine engineering teb.
Stellite 6 ua tau zoo nyob rau hauv high- kub oxidation thiab kub corrosion ib puag ncig. Piv txwv li, hauv ib puag ncig ntawm kev siab- kub ru cov roj, nws tsis yooj yim ua kom zoo dua thiab corroded, uas yog qhov zoo dua li inconel 718 hauv qhov chaw ib puag ncig.
Daim Ntawv Thov
Inconel 718
Aerospace Teb: Nws yog dav siv nyob rau hauv kev tsim khoom ntawm cov dav hlau cav, xws li kev siv luam yeeb xaim, tuaj, thiab casings. Lub turbine disk, uas bears loj centrifugal quab yuam thiab kub}} religue ntawm inconel 718 kom ntseeg tau tias muaj kev nyab xeeb.
Lub zog kev lag luam: nyob rau hauv cov teb ntawm nuclear zog, nws yog siv los ua Nuclear reactor cov tub ntxhais tseem ceeb. In the oil and gas industry, it is used in downhole tools and wellhead equipment that work in high - temperature and high - pressure environments.
Tshuaj Kev Lag Luam: Vim nws zoo corrosion tsis kam, nws yog siv los tsim cov tshuaj muaj tshuaj lom neeg, kev hloov cua sov, thiab lwm yam khoom siv uas tau sib chwv nrog kev tawm xov xwm.
Stellite 6
Hnav -} Cov khoom siv tiv thaiv: Nws yog feem ntau siv los ua cov ntoo- Resistant seem xws li li qub, rooj zaum, thiab kua impellers. Piv txwv li, hauv cov roj thiab roj pipeline system, lub zog valve ua los ntawm stellite kua thiab siab} ceev cov kev pabcuam lub neej ntawm lub valve.
Siab - kub Cov ris kab ke: hauv kev ua haujlwm ntawm lub zog loj, nws yog siv los ua boilzles thiab zeb rolls. Cov ntu no tsis tsuas yog raug rau qhov kub thiab txias tab sis kuj ua rau kev hnav ris tsho uas tau muaj abrasive, thiab stellite 6 tuaj yeem ua tau zoo raws kev cai.
Cov cuab yeej txiav thiab pwm: vim nws lub siab tawv thiab hnav tsis kam, nws tuaj yeem siv los ua cov khoom siv nyuaj thiab pwm rau stamping thiab sib sau.
Kev ua tau zoo
Inconel 718 muaj qhov machinability zoo. Nws tuaj yeem ua tiav los ntawm cov hau kev sib xyaw ua ke xws li tig, milling, tab sis vim nws lub zog siab, nws yuav tsum tau txiav cov khoom lag luam thiab cov cuab yeej zoo dua thaum lub sijhawm ua. Nws kuj tseem tuaj yeem welded los ntawm ntau txoj kev vuam kev, thiab welded pob qij txha yuav tswj tau kev ua tau zoo.
Kev ua kev ua tau zoo ntawm stellite 6 yog tus kuj tsis zoo. Vim tias nws lub siab tawv thiab muaj cov khoom muaj zog, nws nyuaj heev rau lub tshuab, thiab cov cuab yeej tshwj xeeb thiab cov tsis muaj peev xwm ua tau. Its welding is also more difficult, and cracks are easy to occur during welding, so strict welding processes and pre - and post - welding treatments are needed.
Hauv cov ntsiab lus, Inconel 718 thiab stellite 6 muaj lawv tus kheej cov yam ntxwv. Inconel 718 yog qhov tseem ceeb tshaj plaws nyob rau hauv high- lub zog thiab corrosion lub zog thiab corrosion lub zog thiab corrosion lub zog, thiab yog qhov tsim nyog rau cov khoom siv uas yuav tsum tau thauj khoom siab thaum muaj kub. Stellite 6 yog qhov zoo dua nyob rau hauv cov hnav tsis kam thiab siab {{}} kub oxidation tsis kam, thiab yog qhov ntsuas kub- kub thiab hnav ib puag ncig. Thaum xaiv cov ntaub ntawv, nws yog ib qho tsim nyog yuav tsum txiav txim siab txog qhov tseeb ua haujlwm thiab kev ua tau zoo xav tau los xaiv cov alloy uas tsim nyog tshaj plaws.
