Elinvar Alloy|Lork
Khoom Taw Qhia
Elinvar (nominal muaj pes tsawg leeg: kwv yees . 33-35% npib tsib xee, 4-5% chromium, 1-3% tungsten, sib npaug hlau) yog npib tsib xee- hlau-chromium-raws li precision elastic alloy; nws lub npe yog muab los ntawm Fabkis kab lus * élasticité invariable * -lub ntsiab lus "invariable elasticity."
Cov khoom siv tus nqi tseem ceeb nyob hauv qhov tseeb tias nws qhov kub thiab txias coefficient ntawm modulus ntawm elasticity (_E) tseem zoo li xoom nyob rau hauv qhov kub ntawm qhov dav heev. Cias muab, yog tias lub caij nplooj ntoos hlav ua los ntawm cov khoom siv no tau nruab rau hauv qhov ntsuas qhov tseeb, lub caij nplooj ntoos hlav quab yuam tseem nyob tas li tsis hais lub caij ntuj sov lossis lub caij ntuj no. Rau cov khoom xws li saib hairsprings, gyroscope springs nyob rau hauv navigation systems, los yog lub siab gauge capsules, cov ntaub ntawv drift tshwm sim los ntawm qhov kub thiab txias hloov yuav ua rau precision ntsuas tsis muaj txiaj ntsig. Elinvar yog tsim tshwj xeeb rau cov ntawv thov "qhov elasticity tsis tu ncua", ua rau nws zoo tagnrho rau kev ua haujlwm nruj uas cov cuab yeej yuav tsum ua haujlwm tau zoo nyob thoob plaws qhov chaw huab cua-los ntawm lub ntuj mus rau qhov tob ntawm lub ntiaj teb.
Nws cov ntawv thov raug nthuav dav ntau qhov siab -end sectors:
Horology thiab precision timekeeping:Hairsprings thiab mainsprings rau watches thiab marine chronometers; nws "qhov elasticity tsis tu ncua" lub cev ua kom lub sijhawm ua haujlwm raug.
Aerospace:Core elastic Cheebtsam rau gyroscopes thiab accelerometers, raws li zoo raws li ntau yam precision sensors ua hauj lwm nyob rau hauv dav kub ntau yam.
Precision ntsuas:Capsules, diaphragms, bellows, nro strips, thiab suspension wires siv nyob rau hauv ntau yam precision ntsuas ntsuas.
Electronics kev lag luam:Ntau zaus- txiav txim cov khoom rau resonators thiab lim.
Cov cuab yeej kho mob:High -cov cuab yeej kho mob thiab cov ntsuas ntsuas qhov tseeb uas tso siab rau qhov ntsuas kub no - ywj pheej ywj pheej.
High-kawg li qub thiab cov ntsaws ruaj ruaj:Precision valve springs thiab sealing ntsiab yuav tsum tau ntev -lub sij hawm stability, xws li cov siv nyob rau hauv petrochemical thiab aerospace industries.
Qhov txawv ntawm Invar
Cov no yog ob yam khoom yooj yim tshaj plaws tsis meej pem nrog ib leeg. Elinvar thiab Invar yog "sibling alloys"-ob qho tib si tsim los ntawm Guillaume-tsis tau lawv ua haujlwm ntau yam sib txawv:
- Elinvar:Tsom ntsoov rau qhov elastic modulus- lub modulus tseem nyob tas li thoob plaws qhov kub thiab txias hloov, ua rau nws haum rau cov ntawv thov xws li springs thiab hairsprings qhov twg insensitivity rau variations nyob rau hauv elastic quab yuam yuav tsum tau.
- Invar:Tsom ntsoov rau qhov ruaj khov ntawm qhov ntev (qhov tsis sib xws ntawm qhov ntev)- nws muaj qhov sib npaug qis ntawm thermal expansion (~ 1.2 × 10⁻⁶ /℃), ua rau nws tsim nyog rau cov ntawv thov xws li cov qauv ntev thiab LNG cia tso tsheb hlau luam qhov tsis xav tau rau thermal expansion thiab contraction.
Nws yog ib qho nyuaj rau confuse ob cov ntaub ntawv thaum lub sij hawm yuav khoom, tab sis muaj kev sib txawv nruj heev txog qhov twg lawv tau siv tiag tiag.
Machining thiab Vuam
Cov khoom ntawm Elinvar tau ua tiav los ntawm kev kho cua sov es tsis yog ua los ntawm kev tsim khoom; tsis muaj kev laus, tsis muaj qhov elasticity tas li -qhov no yog lub hauv paus ntsiab lus ntawm kev ua Elinvar. Cov yam ntxwv tseem ceeb ntawm kev ua tau zoo, xws li qhov elasticity thiab lub zog tas li, nyob ntawm qhov kawg ntawm kev kho cua sov (kev laus), thiab cov neeg siv yuav tsum ua raws li cov txheej txheem kho cua sov uas yuav tsum tau ua raws li cov qauv tsim tshwj xeeb.
Peb -cov txheej txheem kev kho cua sov- txhua kauj ruam yog qhov tseem ceeb:
Kev daws annealing (830-900 degree)
Cold forming (ua thaum cov khoom nyob rau hauv cov tshuaj -annealed/soft state)
Lub hnub nyoog hardening (kwv yees . 600-700℃rau ob peb teev; tshwj xeeb tsis nyob ntawm qib)
1. Ua haujlwm txias:Elinvar feem ntau yog muab rau hauv cov kev daws teeb meem -annealed (mos) lub xeev, nrog rau kev ua kom txias ua los ntawm cov neeg siv khoom. Thaum cov khoom muaj ductility zoo, nws muaj kev ua haujlwm siab - hardening tus nqi; yog li ntawd, kev ntxhov siab-relief annealing (500–600 degree) yog xav tau tom qab tsim kom tshem tawm cov kev ntxhov siab sab hauv. Kev ua kom txias txaus thiab lubrication yog tsim nyog rau cov ntawv hlau stamping thiab dabtsi yog khoov ua haujlwm.
2. Vuam/Brazing:Vuam kev ua tau zoo yog qhov zoo tshaj hauv cov tshuaj-annealed xeev; weldability txo qis tom qab lub hnub nyoog hardening.
3. Machining / sib tsoo:Precision machining yuav tsum ua kom tiav hauv kev daws teeb meem -annealed xeev. Tom qab-aging, cov khoom hardens ho (~ 35–45 HRC), ua rau tom ntej machining hauj lwm nyuaj heev.
Yog xav paub ntxiv, thov hu rau:
Email:susan@lorkgroup.com
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Tshuaj muaj pes tsawg leeg
Tshaj li ib puas xyoo ntawm txoj kev loj hlob, Elinvar alloys tau hloov zuj zus mus rau hauv ntau qib kev lag luam, nrog cov ntsiab lus tseem ceeb hauv qab no:
Cov tshuaj muaj pes tsawg leeg (mass feem, wt%):
| keeb | Cov ntsiab lus ntau |
| Ni | 33-36% |
| C | 0.5-2.0% |
| Cr | 4-12% |
| W | 1-3% |
| Si | 0.3-2.0% |
| Mn | 0.45-2.4% |
| Ti | Kwv yees li 2–3% (hnub nyoog- hom tawv tawv nkaus xwb) |
| Fe | Margin |
Ntsiab Lus: Cov ntsiab lus carbon (c) yog qhov tseem ceeb ua rau muaj kev lag luam loj ntawm Elinvar.Kev tsim khoom thaum ntxov yuav tsum muaj kev tswj xyuas meej heev ntawm kev sib xyaw ua ke; ruaj khov, loj- nplai kev tsim khoom tsuas yog ua tiav tom qab los ntawm kev kho cov ntsiab lus ntawm cov pa roj carbon monoxide thiab nthuav qhia M7C3 carbides dispersed precipitated thaum tempering. Qhov no distinguishes nws los ntawm lwm yam precision elastic alloys nyob rau hauv cov nqe lus ntawm kev lag luam tus nqi.
Mechanical Properties
| Khoom siv | Qib 1 yuav tsum muaj |
| Tensile zog | 1250 MPa |
| Lub zog muaj zog (0.2%) | 1150 MPa |
| Kub coefficient ntawm modulus ntawm elasticity | -3 × 10⁻⁶ /℃~ +3 × 10⁻⁶ / degree |
| Modulus ntawm elasticity | 177-183 PIB |
| Qhov ntom | 8.0-8.2g / cm³ |
| Hardness (muaj hnub nyoog) | ~ 35-45 HRC |
Nco tseg:Elinvar feem ntau yog muab rau hauv cov tshuaj -annealed (soft) xeev; cov neeg siv khoom feem ntau ua qhov kev laus kho lawv tus kheej tom qab stamping lossis tsim. Thaum lub elastic modulus twb tas li nyob rau hauv lub xeev mos, lub zog tsuas yog hais txog ib tug -feem peb ntawm qhov ntawd nyob rau hauv lub hnub nyoog. Ib qho pitfall yog tias ntau tus neeg siv khoom tsis paub tias kev laus yuav tsum ua kom tiav lub zog nominal ntawm 1150 MPa; txhim kho cov khoom ncaj qha rau hauv nws cov kev daws teeb meem-annealed xeev ua rau lub caij nplooj ntoos hlav deformation.
Kev Sib Tham Txog Kev Sib Tham Ua Ntej Tshaj Tawm
Peb tau sau cov ntsiab lus ntawm cov txheej txheem tseem ceeb ntawm Elinvar Alloy-cov ntsiab lus nquag sib tham thaum muaj kev nug thiab kev txiav txim yuav khoom yav dhau los- los pab txhawb kev hais tawm sai.
Dimensions/Specifications: Sawb thickness (feem ntau 0.05-5 hli) thiab dav; txoj kab uas hla.
Kev Xa Khoom: Kev daws-annealed (lub xeev mos, xav tau cov neeg siv khoom- ua kev laus) lossis hnub nyoog (lub xeev nyuaj)? - Qhov no yog qhov nthuav dav tshaj plaws.
Kev yuav tsum muaj kev laus: Yog tias yuav khoom hauv cov tshuaj -annealed lub xeev, cov neeg siv khoom puas muaj lawv lub qhov cub tawg? Puas yog pob txheej txheem kev laus xav tau los ntawm peb?
Qhov yuav tsum tau muaj: Bright Annealed (BA), ci txias -rolled, thiab lwm yam., kom ua tau raws li kev tshuaj xyuas qhov muag lossis siab - ua kom tiav cov kev cai sib dhos.
Lwm yam yuav tsum tau muaj: Puas yog tshwj xeeb kam rau ua, ntug passivation, los yog chamfering yuav tsum tau? Puas yog MTC (Cov Khoom Siv Xeem Ntawv Pov Thawj) xav tau?
Cov lus pom zoo rau kev xaiv cov khoom siv:
Yog tias koj xav tau ua koj tus kheej stamping lossis caij nplooj ntoos hlav winding → Tshuaj- kho mob (mos, yooj yim rau txheej txheem); ua kev laus kho koj tus kheej tom qab tsim.
Yog tias siv cov khoom tiav ncaj qha → Kev laus (nyuaj, twb muaj cov khoom tsim ua haujlwm tau zoo).
Rau cov neeg siv khoom tsis muaj peev xwm kho cua sov → Koj yuav tsum yuav cov khoom tiav hauv cov laus; txwv tsis pub, lub zog ntawm kev daws teeb meem - cov khoom kho yuav tsuas yog ib qho - peb ntawm cov khoom qub, thiab nws yuav tsis tawv txawm tias ua tiav.
Nco tseg: Cov txheej txheem kev laus rau Elinvar yog qhov tseem ceeb rau kev ua haujlwm zoo; tsis muaj nws, txawm tias qhov zoo tshaj plaws - cov khoom siv raw zoo yuav ua tsis tiav cov txiaj ntsig xav tau. Tsis muaj kev laus txhais tau tias tsis tas li elasticity. Yog tias koj tsis muaj cua sov- cov chaw kho mob, tsuas yog muab cov khoom siv hauv nws lub hnub nyoog, tiav lawm. Hom kev ua tsis tiav yog ncaj nraim: cov springs uas tsis tau dhau los ntawm kev laus yog mos heev -lawv yuav deform tam sim ntawd thaum nruab lossis poob lawv lub caij nplooj ntoos hlav quab yuam tom qab lub sijhawm ua haujlwm luv. Ib txhia ntawm peb cov neeg muas zaub tau overlooked lub ntsiab lus no, ua rau ib tug tiav cov khoom lifespan uas tsuas yog ib tug -tsib tsib ntawm tus nqi ntsuas.
Cim npe nrov: elinvar alloy|lork, Tuam Tshoj elinvar alloy|lork manufacturers, hoobkas
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