1: Dab tsi yog qhov txhais cov yam ntxwv thiab thawj daim ntawv thov ntawm polished Nickel 201 (UNS N02201) phaj?
Polished Nickel Alloy UNS N02201 phaj yog siab -purity, qis- carbon wrought npib tsib xee khoom txawv los ntawm nws tshwj xeeb corrosion kuj, superior siab - kub stability, thiab meticulously tiav nto. Cov xwm txheej "polished" yog hais txog qhov chaw uas tau dhau los ua kev puas tsuaj thiab cov txheej txheem buffing (xws li, mus rau # 4 txhuam txhuam los yog daim iav polish) kom ua tiav cov khoom zoo nkauj, ua haujlwm, thiab tu cev.
Nws cov yam ntxwv tseem ceeb muaj xws li:
High Purity & Low Carbon: Muaj qhov tsawg kawg nkaus ntawm 99.0% npib tsib xee nrog cov ntsiab lus siab tshaj plaws ntawm 0.02%. Cov pa roj carbon tsawg no yog qhov tseem ceeb rau kev tiv thaiv "graphitization" (cov nag lossis daus ntawm graphite ntawm cov ciam teb) thaum muaj kev kub ntxhov siab - kub, muaj kev pheej hmoo nrog tus qauv Nickel 200.
Corrosion Resistance: Muaj kev tiv thaiv zoo rau caustic alkalis, tsis yog -oxidizing ntsev, thiab ntau yam ntawm cov organic thiab inorganic tshuaj. Nws yog tshwj xeeb tshaj yog tiv taus chloride-kev nyuaj siab-corrosion tawg.
Mechanical & Thermal Properties: Khaws lub zog zoo thiab ductility los ntawm qhov kub thiab txias txog li 315℃(600℃F). Saum toj no, Nickel 201 nyiam dua Nickel 200 rau kev pabcuam ntev -.
Polished Deg: Cov polish txo qhov roughness, uas txo qhov chaw rau kev txhim kho corrosion, tiv thaiv cov khoom adhesion, pab tu, thiab muab ib qho kev pom zoo (los ntawm kev huv satin mus rau cov iav zoo nkauj).
Cov ntawv thov tseem ceeb:
Cov Khoom Siv Tshuaj Siv Tshuaj: Polished daim hlau yog siv rau cov reactor linings, heat exchanger panels, thiab distillation kem internals qhov twg cov khoom purity, cleanability, thiab corrosion kuj yog qhov tseem ceeb.
Khoom noj khoom haus & Pharmaceutical Processing: Qhov tsis yog - paug, yooj yim kom tsis muaj menyuam nto ua rau nws zoo tagnrho rau cov hlab ntsha tseem ceeb, cov ntsiav tshuaj xovxwm, thiab hoppers hauv GMP ib puag ncig.
Architectural & Decorative Applications: Siv rau kev hwm phab ntsa cladding, of the elevator interiors, and signage where a check, tarnish-resistant metallic finish is required.
Tshwj xeeb Fabrication: Ua haujlwm raws li cov khoom siv rau siab - gaskets, semiconductor tooling, thiab lub tshuab nqus tsev chamber Cheebtsam.
2: Vim li cas polished tiav tau teev tseg rau Nickel 201, thiab dab tsi yog tus qauv polish qib thiab lawv cov kev cuam tshuam?
polished tiav tsis yog tsuas yog cosmetic; nws yog ib qho kev ua haujlwm tshwj xeeb uas cuam tshuam ncaj qha rau kev ua haujlwm, kev saib xyuas, thiab kev ncaj ncees ntawm cov khoom. Cov laj thawj tseem ceeb rau kev qhia nws yog:
Txhim kho Corrosion Resistance: Ib tug du, polished nto muaj ib tug drastic txo deg cheeb tsam thiab tsawg dua microscopic peaks thiab hav (pits, khawb) piv rau ib tug zeb tiav. Qhov no txo qis qhov chaw uas corrosive media tuaj yeem ua pas dej lossis qhov chaw corrosive tuaj yeem pib, yog li txhim kho cov khoom siv tag nrho.
Txhim kho kev huv thiab huv: Hauv kev lag luam huv huv, qib siab - qib polish (piv txwv li, # 4 huv huv nrog Ra < 0.8 µm) tsim kom tsis muaj - ntxeem tau, tsis yog - nplaum nto uas tiv thaiv kab mob harborage thiab tso cai rau kom tiav, ceev ceev thiab sterilization ntawm cov khoom noj khoom haus txheej txheem {{7}.
Txo cov khoom Adhesion: Rau cov txheej txheem tuav cov khoom khov los yog nplaum (polymers, qee yam tshuaj, khoom noj khoom haus), polished nto tiv thaiv kev tsim- nce, txo qis qis rau kev tu, thiab txhim kho cov khoom lag luam tawm.
Aesthetic Consistency: Muab qhov zoo ib yam, tswj cov tsos rau architectural thiab cov neeg siv khoom- ntsib cov ntawv thov.
Standard Polish Qib:
# 3 Tiav (Zoo): Ib co ntxhib polish nrog unidirectional sib tsoo kab. Siv qhov chaw huv huv yog qhov tseem ceeb tab sis qhov zoo nkauj zoo nkauj tsis yog qhov tseem ceeb.
#4 Finish (Brushed / Satin): Cov khoom siv polished tshaj plaws. Cov yam ntxwv los ntawm kev sib xws, zoo, unidirectional txhuam kab. Muab qhov sib npaug zoo ntawm kev tiv thaiv corrosion, huv, thiab nqi. Ra (Roughness Average) feem ntau teev tseg (piv txwv li, Ra <0.5µm rau kev siv huv si).
#6 Finish (Tampico Brushed): Lub softer, duller satin tiav tiav nrog txhuam txhuam. Tsawg reflective tshaj #4.
#7 Finish (High Luster): Lub buffed tiav uas yog reflective tab sis tseem qhia faint polishing kab. Ib tug precursor rau ib daim iav.
#8 Tiav (Daim iav): Ib qho flawless, kab -dawb, muaj qhov cuam tshuam zoo heev tau ua tiav los ntawm kev polishing zoo nrog cov abrasives zoo thiab dav buffing. Siv rau ultra-kev huv huv lossis zoo nkauj daim ntaub ntawv. Nws muab qhov tsawg tshaj plaws ntawm qhov roughness thiab siab tshaj plaws corrosion pib ua hauj.
3: Dab tsi yog qhov tseem ceeb ntawm kev tsim thiab kev txiav txim siab thaum ua haujlwm nrog polished Nickel 201 phaj?
Fabricating nrog polished phaj yuav tsum tau ceev faj cov txheej txheem los khaws cov khoom kim heev thiab cov khoom siv hauv lub cev.
Kev tiv thaiv kev ua tiav: polished nto yuav tsum tau tiv thaiv los ntawm qhov pib. Qhov no suav nrog:
Kev Tiv Thaiv Zaj Duab Xis: Siv thiab tswj cov yeeb yaj kiab uas muaj zog, tev tawm ntawm lub ntsej muag polished thaum lub sij hawm tuav, fabrication, thiab shipping.
Cov Chaw Ua Haujlwm Tshwj Xeeb: Siv cov ntxhuav huv, tiaj tus npog nrog cov khoom tiv thaiv kom tsis txhob khawb.
Ua tib zoo tuav: Siv cov nylon slings lossis padded khoom; yeej tsis rub daim hlau.
Txiav thiab Machining:
Ua hauj lwm Hardening: Nickel 201 ua hauj lwm - hardens sai. Siv cov cuab yeej ntse, zoo-rake carbide nrog qeeb nrawm, pub tus nqi siab, thiab cov dej txias txaus los txiav ntau dua li rub cov khoom.
Txoj kev txiav: Waterjet txiav yog qhov zoo tagnrho vim nws qhia tsis muaj cua sov lossis kev ntxhov siab. Plasma lossis laser txiav tuaj yeem siv tau tab sis yuav tawm hauv tshav kub- thaj chaw cuam tshuam (HAZ) uas yuav tsum tau rov ua dua - polishing. Shear txiav yuav tsum tau saib xyuas heev los tiv thaiv ntug deformation.
Kev tsim thiab vuam:
Kev tsim: Yuav tsum muaj zog ntau dua li cov hlau. Xyuas kom txhua txoj kev tuag yog huv si, du, thiab tsis muaj qhov tsis xws luag kom tsis txhob imprinting ntawm polished nto. Intermediate annealing tej zaum yuav xav tau rau kev khoov hnyav.
Vuam: Siv cov hlau sib xyaw ua ke (ERNi-1). Kev huv huv nruj yog qhov tseem ceeb heev- tshem tawm tag nrho cov yas zaj duab xis, roj, thiab cov khoom paug tawm ntawm thaj chaw vuam. Siv tshwj xeeb stainless hlau hlau txhuam. Ua haujlwm roj tungsten arc vuam (GTAW / TIG) nrog argon thaub qab / purging los tiv thaiv oxidation (qab zib) ntawm sab nraub qaum thiab khaws cia corrosion. Lub weld hlaws thiab HAZ yuav xav tau hauv zos rov ua polishing kom phim qhov qub tiav thiab rov ua kom muaj kev tiv thaiv corrosion.
Ncej -Fabrication: Tag nrho cov cim fabrication, welds, thiab tshav kub- tinted cheeb tsam yuav tsum tau repolished meticulously siv ib tug sib lawv liag raws li cov thawj tiav qib, ua raws li los ntawm ib tug zaum kawg passivation nrog nitric acid los kho cov passive oxide txheej.
4: Yuav ua li cas polished Nickel 201 piv rau polished austenitic stainless hlau (xws li, 316L) rau corrosive kev pab?
Kev xaiv ntawm polished Nickel 201 thiab polished 316L stainless hlau hinges ntawm cov tshuaj lom neeg ib puag ncig thiab kub.
Polished 316L Stainless hlau:
Lub zog: zoo heev corrosion kuj nyob rau hauv oxidizing ib puag ncig (xws li, nitric acid), zoo kuj mus rau ntau yam organics, thiab ho txo nqi khoom. Cov polish txhim kho nws txoj kev huv thiab pitting tsis kam.
Tsis muaj zog: Ua rau cov tshuaj chloride-induced pitting thiab stress-corrosion cracking (SCC), tshwj xeeb tshaj yog nyob rau hauv sov, stagnation. Nws tsis kam txo cov kua qaub (xws li hydrochloric, sulfuric) yog txwv. Tsis haum rau kub, concentrated caustic kev pab cuam.
Polished Nickel 201 (UNS N02201):
Lub zog: Superior hauv kev txo qis thiab caustic ib puag ncig. Nws yog cov khoom xaiv rau kub, concentrated sodium hydroxide (caustic soda) thiab lwm yam alkalis. Nws muaj kev tiv thaiv zoo rau tag nrho cov concentration ntawm hydrochloric acid thiab tsis yog -oxidizing sulfuric acid. Nws yog qhov tseem ceeb tiv thaiv chloride SCC. Ua tau zoo dua hauv siab - cov dej huv huv.
Tsis muaj zog: Tsawg resistant dua stainless hlau rau oxidizing acids zoo li nitric. Cov khoom pib siab dua thiab tus nqi tsim khoom.
Tus Txheej Txheem Tseem Ceeb: Rau cov txheej txheem uas muaj cov kub kub los yog tsis yog -oxidizing acids, polished Nickel 201 feem ntau yog qhov kev xaiv hlau uas siv tau xwb. Hauv cov tshuaj chloride-nplua nuj qhov chaw uas polished 316L tej zaum yuav pit, Nickel 201 muab kev ntseeg siab, ntev - kev pab cuam lub sij hawm. Cov polished tiav ntawm ob cov ntaub ntawv ua haujlwm tib lub hom phiaj, tab sis Nickel 201 muab nws cov txiaj ntsig hauv cov txheej txheem tshuaj lom neeg ntau dua.
5: Kev ntsuas kev ruaj ntseg dab tsi yog qhov tseem ceeb thaum yuav khoom polished Nickel 201 phaj?
Muab cov nqi them nqi thiab cov ntawv thov tseem ceeb, kev yuav khoom yuav tsum yog raws li kev txheeb xyuas qhov tseeb thiab cov ntawv pov thawj.
Cov ntaub ntawv pov thawj: Ib qho yuav tsum tau ua Mill Test Report (MTR) / Certificate of Conformance certification lub phaj raws li ASTM B162 rau UNS N02201. Nws yuav tsum paub meej tias:
Chemistry: Cov pa roj carbon tsawg (tsawg dua lossis sib npaug li 0.02%), cov ntsiab lus nickel siab, thiab cov kab hauv kab txwv.
Mechanical Properties: Tensile, tawm los, elongation.
Kev mob: Annealed (mos) temper, uas yog qhov tseem ceeb rau fabrication thiab pom corrosion kuj.
Surface Finish Specification: Daim ntawv xaj yuav tsum qhia meej meej cov qib polish (xws li, # 4 Txhuam) thiab, rau kev siv engineering, qhov siab tshaj plaws Roughness Nruab Nrab (Ra) tus nqi (piv txwv li, "Ra Tsawg dua lossis sib npaug rau 0.4 µm"). Cov qauv siv raws li ASTM A480 / A480M rau cov lus siv.
Kev soj ntsuam pom thiab qhov ntev: Tus neeg xa khoom yuav tsum muab pov thawj ntawm kev tshuaj xyuas. Qhov saum npoo yuav tsum tsis muaj cov kab polish uas ua txhaum kev taw qhia, pom khawb, pits, txiv kab ntxwv tev, lossis sib tsoo kub. Dimensional kam rau ua (thickness, flatness, ntev / dav) ib ASTM B162 yuav tsum tau xyuas.
Ntim thiab Kev Tiv Thaiv: Qhov kev txiav txim yuav tsum qhia meej tias qhov polished nto yuav tsum tau tiv thaiv tsis muaj - staining, peelable yas zaj duab xis haum rau ib puag ncig kev pab cuam (qee films degrade nyob rau hauv UV teeb los yog tawm nplaum residue). Cov phaj yuav tsum tau muab cais thiab crated los tiv thaiv kev puas tsuaj.
Kev Muaj Peev Xwm Muaj Peev Xwm: Tau los ntawm cov tuam txhab muaj npe lossis cov chaw pabcuam uas muaj pov thawj kev tshaj lij hauv polishing siab -nickel alloys. Lawv yuav tsum nkag siab txog qhov tshwj xeeb tuav thiab kev xav tau zoo tshaj li cov qauv stainless hlau.
Hauv cov ntsiab lus, polished Nickel 201 phaj yog siab - cov khoom ua tau zoo uas qhov kev ncaj ncees ntawm ob qho tag nrho cov hlau thiab nws qhov chaw tiav yog qhov tseem ceeb rau kev ua haujlwm. Kev yuav khoom nws ua tiav yuav tsum muaj kev qhia meej meej, cov ntawv pov thawj nruj, thiab kev koom tes nrog cov neeg muag khoom tsom mus rau kev lees paub zoo.
