1: Dab tsi txawv ntawm Nickel Alloy 201 los ntawm lwm cov nickel alloys, thiab vim li cas nws thiaj li tshwj xeeb hauv daim ntawv polished rau daim ntawv thov tseem ceeb?
Nickel Alloy 201 (UNS N02201) yog cov khoom lag luam ntshiab, qis -carbon wrought nickel alloy uas muaj qhov tsawg kawg nkaus ntawm 99.0% npib tsib xee, nrog cov ntsiab lus siab tshaj plaws ntawm 0.02%. Cov ntsiab lus tsis tshua muaj pa roj carbon monoxide no yog nws cov ntsiab lus txhais, sib txawv ntawm Nickel 200 (uas muaj txog li 0.15% carbon). Daim ntawv "polished plate" yog hais txog cov ntaub ntawv uas tau dhau los ua kev puas tsuaj thiab cov txheej txheem buffing kom ua tiav cov txheej txheem tshwj xeeb, xws li los ntawm cov khoom siv satin (#4) mus rau daim iav -zoo li (#8) polish.
Qhov kev sib xyaw ntawm cov khoom siv thiab kev ua tiav no tau teev tseg rau cov ntawv thov uas ntau qhov kev xav tau sib koom ua ke:
Siab -Tsuas Muaj Kev Ruaj Ntseg Hauv Kev Txo Cov Cuab Yeej: Nickel 201 tiv thaiv "graphitization" - nag lossis daus ntawm cov pa roj carbon monoxide ntawm cov ciam teb - uas tuaj yeem tshwm sim hauv tus qauv Nickel 200 thaum raug kub ntawm 425℃thiab 650℃(800℃F thiab 1200℃F) ntev. Qhov no ua rau nws yog cov khoom xaiv rau cov khoom siv kub, corrosive txheej txheem uas ob qho tib si cua sov thiab carbonaceous cua nyob.
Exceptional Corrosion Resistance: Nws muaj kev tiv thaiv zoo rau caustic alkalis (xws li sodium thiab potassium hydroxide), tsis yog - oxidizing ntsev, thiab ntau cov organic acids. Lub polished nto txo qhov chaw ntawm qhov chaw thiab tshem tawm cov pits microscopic thiab khawb qhov twg corrosive tuaj yeem pib.
Cov Khoom Siv Ua Haujlwm Nto: Cov polish muab ib qho du, tsis yog - ntxeem tau, thiab yooj yim - rau - huv qhov chaw uas tiv thaiv cov khoom adhesion, tso cai rau kom tsis muaj menyuam zoo, thiab ua tau raws li cov qauv kev tu cev nruj. Nws kuj muaj qhov tshwj xeeb zoo nkauj rau kev siv vaj tsev lossis kho kom zoo nkauj.
2: Cov txheej txheem polish qib rau Nickel 201 phaj yog dab tsi, thiab qhov ua tiav ncaj qha cuam tshuam nws qhov kev ua haujlwm li cas?
Cov qib polish yog ib qho kev ua haujlwm tshwj xeeb, tsis yog tsuas yog tshuaj pleev ib ce xwb. Cov txheej txheem tiav yog feem ntau categorized los ntawm ib tug lej system thiab txhais los ntawm nto roughness (Ra nqi hauv micro-inches lossis micrometers).
#3 Ua tiav (Ntxhiab Polish): Ib qho kev sib tsoo unidirectional nrog cov kab pom pom. Siv qhov kev huv huv yog qhov tseem ceeb tab sis qhov tsos yog qhov thib ob.
#4 Finish (Brushed los yog Satin): Feem ntau cov khoom tiav. Characterized los ntawm zoo ib yam, zoo, unidirectional polishing kab. Nws muab qhov sib npaug zoo ntawm kev tiv thaiv corrosion, kev huv, thiab nqi. Rau cov ntawv thov huv si, # 4 Sanitary Finish nrog qhov siab tshaj plaws Ra (piv txwv li, Ra tsawg dua lossis sib npaug li 20 µ-in lossis 0.5 µm) yog xav tau.
#6 Finish (Tampico Brushed): Lub softer, duller satin ua tiav nrog txhuam txhuam, tsis tshua muaj kev cuam tshuam li #4.
#7 Tiav (High Luster): Ib qho buffed tiav uas muaj kev cuam tshuam zoo heev tab sis tuaj yeem pom cov kab polishing zoo heev. 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. Nws muaj qhov tsawg tshaj plaws ntawm qhov roughness thiab qhov siab tshaj plaws tiv thaiv corrosion pib thiab khoom adhesion.
Kev cuam tshuam kev ua haujlwm:
Corrosion Resistance: Ib tug smoother nto (qis Ra) muaj tsawg qhov chaw rau pitting los yog crevice corrosion pib. A # 8 daim iav tiav muab kev tiv thaiv zoo tshaj plaws.
Cleanability & Hygiene: Hauv cov khoom noj, tshuaj, thiab semiconductor industries, polished nto (tshwj xeeb tshaj yog #4 lossis zoo dua) yog qhov tseem ceeb. Nws tiv thaiv cov kab mob harborage, tso cai rau ua kom tiav cov kua dej huv, thiab ua tau raws li GMP (Good Manufacturing Practice) thiab FDA.
Khoom Purity: Cov khoom tsis yog -reactive, impermeable nto tiv thaiv kev kis kab mob ntawm cov khoom rhiab.
Aesthetic & Kev Kho: Ib qho txhuam txhuam kom zoo ib yam thiab ua kom pom kev soj ntsuam rau kev sib kis lossis puas yooj yim dua.
3: Dab tsi yog cov ntawv thov kev lag luam tseem ceeb rau polished Nickel 201 phaj, thiab vim li cas feem ntau nws tsuas yog xaiv cov khoom siv tau?
Polished Nickel 201 phaj yog ua hauj lwm nyob rau hauv cov sectors uas cov khoom tsis ua hauj lwm los yog cov kab mob kis tau tus nqi siab heev los yog muaj kev nyab xeeb txaus ntshai.
Kev ua tshuaj lom neeg:
Daim ntawv thov: Reactor linings, distillation kem internals, heat exchanger panels, thiab caustic evaporator qhov chaw.
Lub ntsiab lus tseem ceeb: Nws tsis muaj qhov sib piv tsis sib xws rau kub, concentrated caustic soda thiab lwm yam alkalis, ua ke nrog nws ruaj khov nyob rau hauv siab - qhov kub thiab txias, ua rau nws superior rau stainless hlau. Cov polish tiv thaiv caking thiab yooj yim txij nkawm.
Khoom noj khoom haus & Pharmaceutical Manufacturing:
Daim ntawv thov: Vessel cladding, hoppers, ntsiav tshuaj xovxwm Cheebtsam, thiab ductwork nyob rau hauv siab -purity ua kab.
Qhov laj thawj: Cov hlau tsis yog - lom thiab tsis muaj - paug. Cov polished, crevice-dawb nto yog sterilizable (ntawm CIP / SIP systems) thiab ua tau raws li cov cai huv huv (3-A, EHEDG). Nws feem ntau tau teev tseg tias cov hlau tsis muaj steel yuav raug cov tshuaj chloride pitting los ntawm cov tshuaj ntxuav.
Aerospace & Semiconductor:
Daim ntawv thov: Cheebtsam rau roj thiab oxidizer systems, nqus chamber qhov chaw, thiab wafer ua tooling.
Rationale: High purity thiab outgassing yam ntxwv yog qhov tseem ceeb. Cov polished nto txo qhov tsim cov khoom me me thiab adsorption hauv ultra- qhov chaw nqus tsev siab.
Architecture & Tsim:
Daim ntawv thov: hwm phab ntsa cladding, of elevator interiors, thiab signage.
Lub ntsiab lus tseem ceeb: Muab qhov txawv txav, ruaj khov, thiab tarnish -cov hlau tsis muaj zog uas ua haujlwm zoo dua polished stainless hlau hauv cov huab cua corrosive (xws li, ib puag ncig ntug hiav txwv).
Nws dhau los ua qhov kev xaiv tsuas yog siv tau thaum daim ntawv thov ib txhij xav tau: 1) tiv thaiv kub caustics lossis txo cov kua qaub, 2) kev ua haujlwm siab tshaj 315℃(600℃F), 3) kev tu cev lossis ultra- du nto, thiab 4) cov khoom siab purity.
4: Dab tsi yog qhov tseem ceeb ntawm kev tsim, vuam, thiab tuav cov txheej txheem rau polished Nickel 201 phaj kom khaws nws cov khoom thiab ua tiav?
Fabrication ntawm polished phaj yuav tsum tau ceev faj saib xyuas kom tsis txhob muaj kev cuam tshuam cov khoom kim heev thiab cov alloy lub metallurgical kev ncaj ncees.
Kev tuav & kev tiv thaiv:
Ib txwm ua nrog cov hnab looj tes huv. Thov thiab khaws cov ntaub ntawv pov tseg, yas tiv thaiv zaj duab xis ntawm polished nto thoob plaws hauv fabrication thiab shipping.
Siv lub ntsej muag, huv si workbench nrog tiv thaiv npog.
Txiav thiab Machining:
Ua hauj lwm Hardening: Nickel 201 ua hauj lwm - hardens sai. Siv cov cuab yeej ntse, zoo-rake carbide nrog qeeb ceev, siab pub tus nqi, thiab cov dej txias txaus.
Txoj kev nyiam: Waterjet txiav yog qhov zoo tagnrho. Laser lossis plasma txiav tuaj yeem siv tau tab sis yuav tawm hauv tshav kub - cuam tshuam ntug yuav tsum tau rov ua dua - polishing. Kev txiav yuav tsum tau ua nrog kev saib xyuas hnyav.
Kev tsim:
Yuav tsum muaj zog ntau dua li cov hlau. Xyuas kom txhua qhov tuag thiab mandrels huv si, du, thiab tsis muaj qhov tsis xws luag kom tsis txhob muaj qhov sib tsoo. Intermediate annealing tej zaum yuav tsim nyog rau deformation loj.
Vuam:
Txheej Txheem: Gas Tungsten Arc Vuam (GTAW/TIG) yog qhov nyiam rau nws txoj kev huv thiab tswj.
Filler Hlau: Siv cov khoom sib xyaw ua ke (ERNi-1).
Kev huv huv: Tshem tag nrho cov yeeb yaj kiab, roj, thiab cov khoom paug tawm ntawm qhov chaw vuam. Siv cov cuab yeej (txhuam, grinders) nplooj siab rau cov nickel alloys kom tsis txhob muaj cov kab mob hlau.
Shielding: Siv argon rov qab roj los tiv thaiv oxidation (qab zib) ntawm lub hauv paus sab.
Thaum tshav kub kub input: Siv cov cua kub tsis tshua muaj hluav taws xob thiab tswj kev sib tshuam kub (< 150°C / 300°F) to minimize grain growth and preserve corrosion resistance.
Ncej -Kev Kho Mob Fabrication:
Local Re- polishing: Cov hlaws hlaws thiab cua sov- thaj tsam cuam tshuam yuav tsum yog hauv av thiab rov ua kom zoo dua qub kom haum rau qhov qub tiav thiab rov ua kom muaj kev tiv thaiv tsis tu ncua.
Passivation: Tag nrho cov ntaub ntawv yuav tsum tau passivated nyob rau hauv ib tug kub nitric acid tov (20-50% HNO₃) kom tshem tawm tej embedded hlau kis kab mob thiab hloov kho ib tug uniform, tiv thaiv oxide txheej.
5: Dab tsi tseem ceeb tshwj xeeb thiab kev lees paub zoo yog qhov yuav tsum tau ua thaum yuav khoom polished Nickel 201 phaj?
Kev yuav khoom yuav tsum yog qhov tshwj xeeb- tsav los xyuas kom muaj kev nyab xeeb rau lub hom phiaj.
Cov ntaub ntawv pov thawj:
Daim Ntawv Qhia Txog Mill Test (MTR) yuav tsum tau lees paub ua raws li ASTM B162 rau UNS N02201.
MTR yuav tsum paub meej tias: Chemistry (tsawg C Tsawg dua lossis sib npaug li 0.02%, siab Ni), Cov Khoom Siv Hluav Taws Xob (hauv qhov kub hnyiab), thiab Cov xwm txheej (kev daws teeb meem annealed).
Surface Finish Specification:
Daim ntawv xaj yuav tsum qhia meej meej txog qib polish (xws li, #4 Txhuam) thiab, rau kev siv engineering, qhov siab tshaj plaws Roughness Average (Ra) tus nqi (xws li, "Ra Tsawg dua lossis sib npaug rau 0.4 µm").
Cov qauv siv raws li ASTM A480 / A480M rau cov lus siv.
Dimensional thiab Visual Inspection:
Txheeb xyuas qhov tuab, flatness, thiab qhov ntev ntawm qhov ntev ntawm ASTM B162.
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.
Ntim thiab Kev Tiv Thaiv:
Qhov kev txiav txim yuav tsum qhia meej txog kev tiv thaiv nrog lub siab - zoo, tsis yog - staining, peelable yas zaj duab xis. Cov phaj yuav tsum tau muab cais thiab crated los tiv thaiv kev thauj mus los.
Supplier Qualification:
Tau qhov twg los ntawm mills lossis chaw pabcuam nrog cov kws 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 siv ncaj ncees uas cov hlau tsis muaj zog thiab nws cov txheej txheem ua tiav yog sib cais tsis tau rau kev ua haujlwm. Kev vam meej nyob ntawm qhov tseeb specifications, ntawv pov thawj zoo, thiab kws tshaj lij fabrication.
