1. Dab tsi txhais tau tias "capillary tube" nyob rau hauv cov nqe lus ntawm kev lag luam, thiab dab tsi yog qhov tshwj xeeb kev xav tau muab tso rau hauv Hastelloy B-2 hauv daim ntawv no?
Hauv kev lag luam thiab kev ntsuas cov ntsiab lus, lub raj capillary hais txog qhov tseeb - kos, me - txoj kab uas hla, nyias- phab ntsa hlau raj, feem ntau nrog rau sab nraud (OD) ntawm 3 hli (1/8 ") lossis tsawg dua thiab phab ntsa thicknesses mus rau 0.25mm (0.010"). Lub npe "capillary" qhia txog nws txoj kev siv rau kev tuav cov kua dej meej, ntsuas, lossis ntsuas vim nws qhov bore me.
Rau Hastelloy B-2, daim ntawv foos no nthuav tawm cov kev xav tau tshwj xeeb thiab hnyav:
Corrosion Resistance heev ntawm Micro-Scale: Cov phab ntsa nyias tawm xoom npoo rau kev tiv thaiv corrosion. Txawm tias me me tsis zoo corrosion los yog ib qho kev tshwm sim pitting tuaj yeem ua rau sai dhau los ntawm - phab ntsa tsis ua haujlwm. Alloy lub inherent kuj yuav tsum yog flawless.
Precision thiab Consistency: Internal txoj kab uas hla (ID) thiab phab ntsa concentricity yuav tsum tau tuav kom nruj tolerances zoo ib yam txaus tus nqi los yog siab kis tau tus mob nyob rau hauv instrumentation.
Formability thiab Weldability: Nws yuav tsum muaj peev xwm kos rau qhov ntau thiab tsawg thiab feem ntau welded (feem ntau yog los ntawm orbital TIG los yog laser) rau fittings yam tsis tau sensitized los yog nkig ntawm qhov sib koom ua ke.
2. Nyob rau hauv dab tsi tshwj xeeb daim ntawv thov yog Hastelloy B-2 capillary tubing ib tug indispensable tivthaiv?
B-2 capillary tubing yog tshwj tseg rau qhov tseem ceeb tshaj plaws, me me - nplai daim ntawv thov uas nws qhov tshwj xeeb corrosion kuj yog tsis sib tham. Nws siv yog niche tab sis tseem ceeb heev.
Analytical & Sampling Systems: Raws li cov qauv kab rau kev hloov cov dej kub, cov txheej txheem nruj heev (piv txwv li, concentrated HCl los yog H₂SO₄) los ntawm lub reactor los yog pipeline mus rau hauv internet analyzers (xws li pH, conductivity, los yog chromatographs). Tubing yuav tsum tsis txhob kis tus qauv los yog corrode.
Instrumentation Impulse Lines: Txuas lub siab transmitters, gauges, lossis qib sensors los ua cov khoom siv uas muaj cov kua qaub. Nws tiv thaiv cov cuab yeej rhiab los ntawm kev raug ncaj qha.
Kev Kho Mob thiab Pharmaceutical Processing: Hauv cov chaw tsav tsheb lossis kev tshawb fawb- ntsuas cov cuab yeej siv rau kev sib txuas cov kua qaub-raws li kws tshuaj intermediates, qhov chaw me me reactors thiab purification systems yuav tsum tau ultra- ntshiab, corrosion- tiv taus cov dej.
Tshwj xeeb Sensor Sheaths: Ua raws li kev tiv thaiv, corrosion- tiv thaiv sab nrauv rau cov thermocouples lossis lwm yam kev sojntsuam tso ncaj qha rau hauv kev tawm tsam.
Precision Metering thiab Dosing: Rau kev tswj qhov sib ntxiv ntawm cov ntim me me ntawm corrosive catalysts lossis reactants hauv lab- nplai lossis pilot- ntsuas qhov ntsuas tsis tu ncua chemistry.
3. Dab tsi yog qhov kev sib tw loj heev hauv kev tsim B-2 capillary tubing, tshwj xeeb tshaj yog cov txheej txheem kos duab?
Kev tsim cov raj capillary los ntawm B-2 yog qhov ua tau zoo ntawm cov hlau metallurgy, thawb cov hlau mus rau nws lub cev txwv.
Multi-theem Draw txheej txheem: Pib los ntawm ib tug me me - txoj kab uas hla seamless raj, nws undergoes ib tug series ntawm txias daim duab hla dhau mus zuj zus me me tuag. Txhua qhov hla txo qhov OD thiab phab ntsa tuab thaum ua kom ntev.
Cov kev sib tw tseem ceeb:
Kev Ua Haujlwm hnyav heev: B-2 ua haujlwm- hardens ntau dua li yuav luag txhua yam alloy. Tom qab txhua daim duab dhau los, nws dhau los ua nyuaj thiab nkig uas nws yuav tsum tau muab cov tshuaj annealed los kho cov ductility ua ntej qhov kev txo qis tom ntej. Qhov no "kos-anneal-draw" lub voj voog yog rov ua dua ntau zaus, yuav tsum tau tswj qhov kub thiab txias thaum lub sij hawm txhua qhov anneal kom tsis txhob hnov qab.
Tuav Dimensional Precision: Tswj tus ID, phab ntsa zoo ib yam, thiab qhov chaw tiav ntawm micron - theem kam rau siab xav tau cov duab kos tuag, lubrication zoo, thiab cov txheej txheem ruaj khov heev.
Surface Integrity: Txhua qhov micro- khawb, seams, los yog cov khoom siv los ntawm cov pob zeb qub tau nthuav dav thaum kos duab thiab tuaj yeem ua rau lub raj tsis ua haujlwm. Cov khoom pib yuav tsum yog qhov zoo tshaj plaws.
Kev Tu: Tshem tawm tag nrho cov duab kos los ntawm lub qhov me me yog qhov tseem ceeb los tiv thaiv kev sib kis hauv kev pabcuam.
4. Yuav ua li cas vuam thiab sib dhos ntawm fittings rau B-2 capillary tubing txawv ntawm cov qauv yeeb nkab vuam?
Kev vuam ntawm capillary tubing yog micro-cov txheej txheem tsim, tsom rau qhov tseeb thiab qhov hluav taws xob tsawg tsawg.
Cov txheej txheem vuam:
Orbital Gas Tungsten Arc Vuam (GTAW): Lub tshuab tig lub raj hauv lub taub hau precision thaum lub tungsten electrode nyob ruaj ruaj tsim cov arc. Qhov no tso cai rau kom zoo kawg nkaus autogenous (tsis muaj muab tub lim) los yog tswj tau muab tub lim hlau welds nrog zoo ib yam, tsis tshua muaj cua sov input.
Laser Vuam: Nyiam rau qhov tsawg tshaj plaws diameters. It provides an extremely focused, high-energy density weld with a minute Heat-Affected Zone (HAZ), which is critical for avoiding sensitization in B-2.
Kev txiav txim siab tseem ceeb vs. Standard Vuam:
Tsis muaj Filler Hlau (Feem ntau): Rau raj - mus rau - fitting welds, ib qho autogenous weld yog ib qho, fusing lub raj ncaj qha mus rau qhov haum. Qhov no yuav tsum tau ua kom haum zoo -up (lub pob tw nrog xoom qhov sib txawv).
Thaum tshav kub kub Sinking: Cov fittings feem ntau mounted nyob rau hauv tooj liab jigs uas ua raws li cov dab dej kub kom sai sai tshem tawm cov cua sov ntawm lub weld cheeb tsam, tiv thaiv lub raj kom tsis txhob mus txog sensitizing kub.
Shielding Gas Purity: Ultra-siab- purity argon shielding, qee zaum nrog cov pa roj, yog qhov tseem ceeb los tiv thaiv oxidation ntawm lub pas dej me me.
Tshaj tawm -Kev kho Weld: Tsis ua tau. Lub vuam yuav tsum yog lub suab zoo thiab corrosion-tiv taus nyob rau hauv raws li -welded xeev.
5. Qhov kev ruaj ntseg zoo thiab cov txheej txheem kev xeem zoo li cas tsis yog - sib tham tau rau B-2 capillary tubing hauv kev pabcuam tseem ceeb?
QA rau capillary tubing yog kev puas tsuaj, statistical, thiab tag nrho vim muaj kev cuam tshuam loj ntawm kev ua tsis tiav.
Dimensional Verification: 100% ntsuas ntawm OD thiab phab ntsa tuab (ntawm laser micrometers thiab ultrasonic phab ntsa gauges) ntawm qhov ntev ntev. Cov qauv yog hla -sectioned thiab microscopically kuaj xyuas ID thiab phab ntsa concentricity.
Cov ntaub ntawv thiab txheej txheem ntawv pov thawj: Tag nrho traceability mus rau lub yaj tshav kub, nrog ntawv pov thawj ntawm qhov kawg annealed mob. Cov ntaub ntawv pov thawj ntawm inter-stage annealing cycles feem ntau yuav tsum tau.
Tsis tseem ceeb -Kev kuaj kev puas tsuaj thiab kev puas tsuaj:
Eddy Current Testing (ECT): 100% ntawm lub raj ntev yog dhau los ntawm ECT sojntsuam txhawm rau txheeb xyuas qhov tsis zoo ntawm qhov ntev, phab ntsa thinning, lossis suav nrog.
Hydrostatic lossis Pressure Decay Testing: Txhua qhov ntev yog ntsuas los xyuas kom meej.
Kev Ntsuam Xyuas Kev Tiv Thaiv Kev Ua Phem: Cov qauv los ntawm pem hauv ntej, nruab nrab, thiab qhov kawg ntawm ntau lawm yog raug rau ASTM G28 Method A lossis ib qho kev xeem nruj dua. Qhov no yog qhov pov thawj tseeb tias qhov rov qab thermal cycles ntawm kev kos duab thiab annealing tsis sensitize cov khoom. Qhov siab tshaj plaws pub rau corrosion yog nruj me ntsis txwv.
Flare thiab Flattening Tests: Cov qauv raug kuaj xyuas kom paub tseeb tias qhov ductility thiab tsis muaj brittleness.
Daim ntawv pov thawj kev huv: Daim ntawv pov thawj ntawm kev huv, roj-dawb bore, feem ntau txheeb xyuas los ntawm cov kuab tshuaj yaug los yog suav particle.
Xaus: Hastelloy B-2 capillary tubing sawv cev rau daim ntawv thov ntawm no formidable alloy ntawm nws feem ntau refined thiab ilv scale. Nws yog ib yam khoom uas cov macro- nplai cov cuab yeej ntawm bulk corrosion kuj yuav tsum tau lav nyob rau hauv ib tug micro- nplai geometry uas zam tsis muaj imperfections. Nws qhov chaw tsim khoom yog ib daim ntawv pov thawj rau kev ua tiav metallurgical, thiab nws siv tau tshwj tseg rau cov xwm txheej uas kev ntseeg siab yog qhov tseem ceeb thiab qhov chaw corrosive txwv tsis pub siv lwm yam khoom siv. Nws yog, nyob rau hauv qhov tseeb, corrosion-resistant kav dej rau qhov tseem ceeb tshaj plaws analytical thiab tswj functions nyob rau hauv ib tug hostile txheej txheem.
