1: ASTM B160 yog dab tsi, thiab dab tsi yog lub ntsiab lus ntawm Nickel 201 (UNS N02201) puag ncig tuav ua rau tus qauv no?
ASTM B160 yog tus qauv tshwj xeeb rau Nickel Qws thiab Bar, tshwj xeeb yog npog cov khoom siv nrog UNS N02201 tsim. Cov txheej txheem no tsim cov tshuaj lom neeg, cov khoom siv, thiab qhov loj me rau wrought npib tsib xee alloy puag ncig tuav, nrog rau lwm cov duab zoo li cov squares thiab hexagons, nyob rau hauv qib feem ntau hu ua Nickel 201.
Nickel 201 yog cov khoom lag luam ntshiab, qis - carbon wrought nickel alloy. Nws cov ntsiab lus tseem ceeb, raws li tau lees paub los ntawm ASTM B160, yog:
High Purity & Low Carbon Cov ntsiab lus: Cov hlau muaj qhov tsawg kawg nkaus ntawm 99.0% npib tsib xee. Qhov tseem ceeb, nws cov ntsiab lus siab tshaj plaws yog 0.02%, qhov txawv ntawm Nickel 200 (UNS N02200, C Tsawg dua lossis sib npaug li 0.15%). Cov pa roj carbon tsawg no yog qhov tseem ceeb los tiv thaiv graphitization- nag lossis daus ntawm cov pa roj carbon monoxide ntawm cov ciam teb ntawm cov qoob loo- thaum lub sij hawm ntev raug kub ntawm 425℃thiab 650℃(800℃F thiab 1200℃F). Qhov no ua rau Nickel 201 yog qhov kev xaiv zoo tshaj plaws rau siab -kev pabcuam kub.
Exceptional Corrosion Resistance: Nws muaj kev tiv thaiv zoo rau ntau qhov chaw corrosive, suav nrog:
Caustic alkalis (piv txwv li, sodium thiab potassium hydroxide) ntawm tag nrho cov concentrations thiab kub.
Tsis yog -oxidizing ntsev thiab ntau cov organic acids.
Chloride-vim kev nyuaj siab-corrosion cracking (SCC), ib hom tsis ua hauj lwm rau stainless hlau.
Cov Khoom Siv Hluav Taws Xob Zoo Tshaj Kub Kub: Txawm tias tsis yog siab - lub zog alloy zoo li qee cov superalloys, nws tuav lub zog tensile zoo, lub zog tawm los, thiab, qhov tseem ceeb tshaj plaws, zoo heev ductility thiab toughness los ntawm cryogenic kub mus txog rau nws siab - kub txwv.
Fabricability: Nyob rau hauv cov txheej txheem annealed teev los ntawm ASTM B160, Nickel 201 puag ncig tuav pom zoo machinability thiab zoo weldability siv cov tswv yim xws li GTAW (TIG), muab cov txheej txheem kom raug rau cov nickel alloys ua raws.
2: Nyob rau hauv qhov tshwj xeeb siab - kub thiab corrosive daim ntaub ntawv yog ASTM B160 Nickel 201 round bars indispensable?
Nickel 201 round bars tau teev tseg rau cov khoom siv uas tsis ua haujlwm yuav ua rau muaj kev poob qis, muaj kev nyab xeeb, lossis khoom paug. Lawv tsis yog dav dav - lub hom phiaj fasteners lossis shafts tab sis yog tsim los rau qhov chaw huab cua.
Chemical & Petrochemical ua:
Agitator Shafts thiab Stirrers: Nyob rau hauv reactors rau caustic evaporation, chlorine kom qhuav, los yog fatty acid ntau lawm, qhov uas tsis kam mus kub alkalis thiab organic acids yog qhov tseem ceeb.
Valve Stems thiab Pump Shafts: Rau tuav kub, concentrated caustic daws los yog corrosive txheej txheem kwj uas stainless hlau yuav ua tsis tau sai.
Kev them nyiaj yug Rods thiab Fasteners: Rau cov kab hauv ob sab phlu thiab cov qauv sab hauv hauv cov hlab ntsha corrosive.
Khoom noj khoom haus, Tshuaj, thiab Synthetic Fiber ntau lawm:
Cheebtsam Shafting: Nyob rau hauv cov khoom siv los tuav cov ntsev molten los yog polymers (xws li, nyob rau hauv zus tau tej cov viscose rayon) qhov twg siab purity thiab tsis kam mus rau thermal cycling yuav tsum tau.
Mandrels thiab Tooling: Qhov twg tsis yog -kev sib kis ntawm cov khoom yog qhov tseem ceeb.
Aerospace thiab Hluav Taws Xob:
Anode thiab Cathode Txhawb: Hauv tshwj xeeb electroplating thiab anodizing teeb.
Cov Txheej Txheem Txheej Txheem: Rau cov cuab yeej ua haujlwm hauv siab -kub, txo cov cua.
Architectural thiab Marine:
Fasteners thiab Tie-Rods: Rau cov qauv tseem ceeb nyob rau hauv cov corrosive heev corrosive ntug hiav txwv dej los yog industrial cua nyob qhov twg ntev -lub sij hawm, kev saib xyuas- dawb ua hauj lwm yog xav tau.
Cov xov xov zoo sib xws yog ib puag ncig uas cuam tshuam nrog kub kub, txo cov kua qaub, kub siab (siab dua 315℃/ 600℃F), lossis qhov yuav tsum tau ua rau cov khoom lag luam zoo tshaj plaws.
3: Dab tsi yog cov tempers muaj rau Nickel 201 puag ncig tuav ib ASTM B160, thiab kev xaiv temper cuam tshuam li cas rau machining thiab xaus -siv kev ua tau zoo?
ASTM B160 npog puag ncig tuav nyob rau hauv ob peb tus qauv tempers, uas txhais tau tias lawv cov neeg kho tshuab mob thiab haum rau txawv fabrication kauj ruam thiab kev pab cuam loads.
Kub Tiav: Lub bar yog tsim ntawm qhov kub thiab txias. Cov xwm txheej no muaj lub zog nruab nrab thiab feem ntau yog siv rau cov khoom siv uas yuav tsum tau ua haujlwm tseem ceeb lossis forging.
Annealed (Soft): Qhov no yog qhov ntau tshaj plaws thiab ntau yam npau taws. Lub bar yog rhuab mus rau ib tug kub kub (feem ntau saum toj no 700℃/ 1300℃F) thiab txias los tsim ib tug mos mos, ductile microstructure nrog lub qis zog thiab hardness tab sis lub siab tshaj plaws corrosion kuj thiab yooj yim ntawm fabrication. Nws yog qhov zoo tagnrho rau cov khoom uas yuav tsum tau ua kom txias txias, khoov, lossis kev siv tshuab dav dav.
Cold Drawn (Ib nrab-Hard, Hard): Lub bar yog rub los ntawm kev tuag ntawm chav tsev kub, uas ua rau nws cov tensile thiab yield zog los ntawm kev ua hauj lwm hardening. Ib nrab-kev kub ntxhov muaj qhov sib npaug zoo ntawm kev muaj zog ntxiv thiab qee qhov kev tsim kho. Hard temper muab lub zog siab tshaj plaws tab sis txwv ductility rau ntxiv khoov. Cov khaub thuas rub tau zoo dua qhov tiav thiab nruj dua qhov ntev ntev dua li cov khoom kub tiav.
Impact on Machining thiab Performance:
Machinability: Lub Annealed temper yog qhov yooj yim tshaj rau tshuab, ua ntev, stringy chips. Txias Drawn tempers muaj zog dua thiab nyuaj, xav tau ntau lub zog thiab cov cuab yeej ntse dua, tab sis lawv tuaj yeem muab qhov zoo dua qhov tiav thiab qhov ruaj khov nyob rau lub sijhawm ua haujlwm vim lawv qhov nruj dua.
Xaus-Siv Kev Ua Haujlwm: Rau qhov tsis yog- thauj khoom- cov kabmob hauv lub tank hnyav heev (piv txwv li, lub pas nrig txhawb nqa), Annealed temper yog txaus thiab ua kom muaj zog corrosion. Rau ib qho kev thauj khoom-cov kabmob xws li lub twj tso kua mis lossis lub valve qia raug rau qhov torsional thiab dabtsi yog khoov kev ntxhov siab, Lub Txias Drawn (Ib nrab-}Hard) temper muab qhov tsim nyog txhua yam lub zog thaum tuav kom txaus toughness thiab corrosion kuj. Lub zog siab yog feem ntau tshwj tseg rau cov ntawv thov xws li siab - lub zog fasteners.
4: Dab tsi yog qhov tseem ceeb rau kev siv tshuab thiab vuam ASTM B160 Nickel 201 round bars?
Txawm hais tias ntau fabricable dua li ntau siab -nickel alloys, Nickel 201 yuav tsum muaj cov txheej txheem tshwj xeeb kom ua tiav cov txiaj ntsig zoo thiab khaws nws cov khoom.
Kev txiav txim siab Machining:
Ua Haujlwm Hardening: Qhov no yog qhov nyuaj tshaj plaws. Nickel 201 ua haujlwm- hardens sai. Qhov tseem ceeb yog siv cov ntse ntse, zoo-rake carbide tooling thiab tswj kom muaj qhov tsis tu ncua, hnyav txiav hauv qab ua haujlwm- cov txheej tawv tawv tsim los ntawm kev dhau dhau los. Lub teeb, skimming txiav yuav glaze thiab harden saum npoo, ua rau tom ntej hla kev nyuaj thiab ceev cov cuab yeej hnav.
Speeds thiab Feeds: Siv nruab nrab kom qeeb nrawm nrog qhov sib npaug, siab pub tus nqi. Kev khiav dej num hnyav ntawm - cov roj ua haujlwm hnyav lossis cov roj sulfurized yog qhov tseem ceeb rau kev txias thiab lubrication.
Chip Control: Cia siab tias tawv, stringy chips. Siv cov chip breakers ntawm cov cuab yeej thiab xyuas kom meej cov nti khiav tawm ntawm qhov chaw ua haujlwm.
Welding Considerations:
Kev huv huv: Kev huv huv huv yog qhov tseem ceeb. Tshem tag nrho cov roj, roj, thiab av los ntawm qhov chaw vuam. Siv ib qho tshwj xeeb stainless hlau hlau txhuam (tsis txhob siv cov pa roj carbon steel) los ntxuav qhov sib koom ua ke.
Filler Hlau: Siv cov khoom sib xyaw ua ke hlau, xws li ERNi-1 rau GTAW (TIG) lossis ENi-1 rau SMAW (stick).
Txheej Txheem: Gas Tungsten Arc Vuam (GTAW / TIG) yog qhov nyiam rau nws qhov tseeb thiab huv. Shielded Hlau Arc (SMAW) kuj tseem siv tau.
Thaum tshav kub kub input: Siv cov cua kub qis mus rau nruab nrab. Khaws ib qho luv luv arc ntev. Preheating feem ntau tsis tas yuav tsum tau.
Interpass Kub: Tswj kom qis dua 150℃(300℃F) txhawm rau tiv thaiv kev loj hlob ntau dhau.
Post- Weld: Post-weld heat treatment feem ntau tsis tas yuav tsum muaj rau Nickel 201. Txawm li cas los xij, rau kev pabcuam corrosive hnyav, passivation ntawm thaj chaw weld nyob rau hauv cov tshuaj nitric acid tej zaum yuav raug teev tseg kom rov zoo dua corrosion kuj.
5: Dab tsi yog qhov ua tiav pob khoom pov thawj zoo thaum muab ASTM B160 Nickel 201 puag ncig tuav?
Rau cov ntawv thov tseem ceeb, kev yuav khoom yuav tsum dhau mus dhau qhov kev yuav khoom yooj yim thiab koom nrog kev txheeb xyuas qhov ua tau zoo.
Daim ntawv pov thawj yuav tsum tau - Daim Ntawv Tshaj Qhia Zeb Xeem (MTR): Tus neeg muag khoom yuav tsum muab daim ntawv pov thawj MTR siv tau rau cov cua sov / ntau ntau. Daim ntawv tshaj tawm no yuav tsum tau lees paub ua raws li ASTM B160 rau UNS N02201. Nws yuav tsum muaj xws li:
Tshuaj ntsuam xyuas: Paub meej tias cov pa roj carbon tsawg (tsawg dua lossis sib npaug li 0.02%), cov ntsiab lus nickel siab, thiab txwv tsis pub muaj cov impurities (Fe, Cu, Mn, S, thiab lwm yam).
Mechanical Properties: Tensile zog, yield zog, elongation, thiab hardness qhov tseem ceeb ua tau raws li cov spec rau lub siab xav (xws li, Annealed, Cold Drawn).
Cov Ntaub Ntawv Kho Mob Thaum Kub Kub: Rau cov khoom siv annealed, kev pom zoo ntawm lub voj voog annealing.
Dimensional thiab Surface Inspection:
Txoj kab uas hla thiab Ncaj Tolerances: Txheeb xyuas raws li qhov kam rau ua tau teev tseg hauv ASTM B160.
Deg mob: Lub bar yuav tsum tsis muaj seams, tawg, laps, los yog lwm yam raug mob. Cov txheej txheem zeb tiav yog qhov raug.
Kev Xeem Ntxiv (Rau Cov Ntawv Thov Tseem Ceeb):
Ultrasonic Testing (UT): Tej zaum yuav raug teev rau loj - kab kab uas hla siv nyob rau hauv siab- daim ntawv thov kev ncaj ncees los xyuas qhov tsis sib xws.
Intergranular Corrosion Test: Txawm tias muaj tsawg dua rau cov hlau tsis muaj steel, cov kev sim zoo li ASTM G28 Txoj Kev A tuaj yeem raug teev los xyuas kom meej tias cov khoom nyob hauv qhov tsim nyog rau kev pabcuam hnyav.
Kev txheeb xyuas cov khoom siv thiab kev taug qab: Cov tuav yuav tsum tau muab tso rau kom zoo los yog stamped nrog cov qib alloy (UNS N02201), cov xov tooj cua sov, thiab qhov loj me. Qhov no traceability yuav tsum tau khaws cia los ntawm tag nrho cov txheej txheem ua.
Kev Tsim Nyog Muaj Peev Xwm: Tau los ntawm cov tuam txhab muaj koob npe lossis cov neeg xa khoom nrog kev txawj ntse hauv cov nickel alloys. Lawv yuav tsum tau muab kev txhawb nqa thiab muaj cov ntaub ntawv tswj xyuas zoo (xws li ISO 9001).
Hauv cov ntsiab lus, ASTM B160 Nickel 201 round bars yog cov khoom siv tshwj xeeb engineering. Lawv txoj kev ua tiav yog nyob ntawm kev xaiv qhov raug temper rau daim ntawv thov, siv cov txheej txheem tsim kom raug, thiab, qhov tseem ceeb tshaj plaws, kev yuav khoom nrog daim ntawv pov thawj tag nrho, traceable los xyuas kom meej tias nws muaj cov khoom tshwj xeeb uas nws tau xaiv.
