Niobium baryog cov khoom siv hlau nrog siab purity, siab zog, thiab siab corrosion kuj. Nws cov tshuaj muaj pes tsawg leeg yog Nb ntshiab, nws cov cim tshuaj yog Nb, nws tus lej atomic yog 41, thiab nws qhov hnyav atomic yog 92.91. Niobium (Nb) muaj cov yam ntxwv zoo corrosion kuj, siab zog, siab kub tsis kam, superconductivity, thiab hnav tsis kam, thiab yog cov khoom siv hlau tseem ceeb heev. Nws yog superconductor uas tuaj yeem siv los ua superconductors thiab lwm yam khoom siv hluav taws xob ua haujlwm siab. Niobium pas nrig feem ntau yog muab rho tawm siv arc melting lossis plasma melting. Nws tuaj yeem tsim cov oxide txheej nrog kev ruaj ntseg zoo hauv huab cua lossis oxidizing ib puag ncig, yog li nws tau dav siv hauv aerospace, tshuaj, hluav taws xob, semiconductor, thiab nuclear industries thiab lwm yam. Niobium pas nrig muaj kev ua haujlwm zoo thiab tuaj yeem ua tau yooj yim rau hauv cov duab xws li xov hlau, cables, capacitors, cov cuab yeej kub kub, thiab cov alloys tshwj xeeb.
1. Lub cev muaj zog
- Qhov ceev: 8.57g / cm3
- Melting point: 2468 degree
- Hluav taws xob conductivity: 38.3 MS / m
- Thermal conductivity: 54.0 W/(m·K)
- Thermal expansion coefficient: 7.3 × 10^{3}} K^{4}} (20-1000 degree)
2. Tshuaj muaj pes tsawg leeg
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Niobium Composition |
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|
impurity |
Qhov siab tshaj plaws rau ingot% (tshwj tsis yog tau teev tseg) |
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|
American tus qauv ASTMB391-96 |
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|
Hom 1 RO4200 |
Hom 2 RO4210 |
yam 3 RO4251 |
yam 4 RO4261 |
|
|
C |
0.01 |
0.01 |
0.01 |
0.01 |
|
N |
0.01 |
0.01 |
0.01 |
0.01 |
|
O |
0.015 |
0.025 |
0.015 |
0.025 |
|
H |
0.0015 |
0.0015 |
0.0015 |
0.0015 |
|
Zr |
0.02 |
0.02 |
0.8-1.2 |
0.8-1.2 |
|
Ta |
0.1 |
0.2 |
0.1 |
0.5 |
|
Fe |
0.005 |
0.01 |
0.005 |
0.01 |
|
Si |
0.005 |
0.005 |
0.005 |
0.005 |
|
W |
0.03 |
0.05 |
0.03 |
0.05 |
|
Ni |
0.005 |
0.005 |
0.005 |
0.005 |
|
Mo |
0.01 |
0.01 |
0.01 |
0.05 |
|
Hf |
0.02 |
0.02 |
0.02 |
0.02 |
|
B |
0.0002 |
- |
0.0002 |
- |
|
Al |
0.002 |
0.005 |
0.002 |
0.005 |
|
Ua |
0.005 |
- |
0.005 |
- |
|
Cr |
0.002 |
- |
0.002 |
- |
|
Co |
0.002 |
- |
0.002 |
- |
3. Dimension kam rau ua
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Dimension kam rau ua |
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Txoj kab uas hla (mm) |
Tolerance ntawm txoj kab uas hla (mm) |
Ntev (mm) |
Tolerance ntawm Length (mm) |
|
3.0-4.5 |
±0.05 |
200-1500 |
+5 |
|
>4.5-6.5 |
±0.10 |
200-1500 |
|
|
>6.5-10.0 |
±0.15 |
200-1500 |
|
|
>10-16 |
±0.20 |
200-2000 |
+20 |
|
>16-18 |
±1.0 |
200-2000 |
|
|
>18-25 |
±1.5 |
200-2000 |
|
|
>25-40 |
±2.0 |
200-2000 |
|
|
>40-50 |
±2.50 |
200-2000 |
|
|
>50-65 |
±3.00 |
200-2000 |
|
|
>65-150 |
±4.00 |
200-1000 |
|
4. Cov txheej txheem ntau lawm
Cov txheej txheem ntawm kev tsim cov niobium bar yog kwv yees muab faib ua cov kauj ruam hauv qab no:
1) Raw khoom npaj: Txij li thaum niobium yog ib tug hlau, nws yog tsim nyog los npaj niobium hmoov, niobium pas nrig, Niobium Sheet, thiab lwm yam raw cov ntaub ntawv raws li qhov pib taw tes rau tsim niobium alloy bar.
2) Kev tsim cov hmoov: Yog tias koj siv niobium hmoov ua cov khoom siv raw, koj yuav tsum tsim cov hmoov. Hauv cov txheej txheem ntawm kev tsim cov hmoov, cov txheej txheem xws li kev kub siab lossis tshuaj txo qis yuav tsum tau ua kom huv niobium hmoov.
3) Melting los npaj niobium pas nrig: Melt niobium raw khoom nyob rau hauv lub tshuab nqus tsev los yog inert cua, thiab tshem tawm inclusions thiab impurities los ntawm kev tswj kub thiab huab cua hloov.
4) Forging ua ntej thiab tom qab ntawd kos duab: cov khoom siv niobium molten yog thawj zaug forged rau hauv ib lub bar nrog rauj lossis tshuab, thiab tom qab ntawd lub bar yog stretched nyob rau hauv ib theem zuj zus thiab qhov kub thiab txias yog kho kom lub bar rau hauv ib tug niobium alloy bar.
5) Kev Ntsuas: Tshawb xyuas lub cev thiab tshuaj lom neeg ntawm niobium alloy bar los ntawm kev kuaj lub cev thiab tshuaj lom neeg kom ntseeg tau tias qhov zoo ntawm niobium pas nrig ua tau raws li tus qauv yuav tsum tau ua.
6) Txiav, sib tsoo, thiab ntim khoom: Niobium bar raug txiav kom ntev raws li cov neeg siv khoom xav tau, polished rau saum npoo optimization, thiab thaum kawg ntim thiab muag.
Cov saum toj no yog cov kauj ruam yooj yim ntawm cov txheej txheem ntau lawm ntawm niobium pas nrig. Tej zaum yuav muaj lwm cov txheej txheem thiab cov ntsiab lus hauv kev tsim khoom tiag tiag.
5. Lub hauv paus ntsiab lus ua haujlwm
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm niobium alloy bar feem ntau yog nyob ntawm nws cov khoom siv, feem ntau yog tshwm sim nyob rau hauv nws lub siab superconductivity thiab superconducting stability.
Nyob rau hauv daim ntawv thov xws li superconducting hlau nplaum, niobium rods feem ntau yog siv los ua superconducting xov hlau. Thaum energized, superconducting tam sim no yuav raug tsim nyob rau hauv lub superconducting nyob ntawm tej, thiab cov tam sim no yuav txav tsis muaj zog nyob rau hauv lub niobium puag ncig bar, uas ua rau lub stabilization ntawm nws internal magnetic teb. Qhov kev tawm tsam tsis muaj zog no tuaj yeem txuas ntxiv thaum tsis muaj kev cuam tshuam sab nraud, tso cai rau kev xa hluav taws xob zoo thiab khaws cia.
Tsis tas li ntawd, lub niobium puag ncig bar kuj muaj kev ruaj ntseg superconducting, uas yog, nyob rau hauv qhov kev txiav txim ntawm sab nraud cuam tshuam los yog muaj zog hlau nplaum, nws cov superconducting tam sim no tseem tuaj yeem ntws tsis tu ncua yam tsis muaj superconducting lub xeev kev puas tsuaj. Cov yam ntxwv no tseem ceeb heev hauv kev siv hlau nplaum kom ntseeg tau tias muaj kev ruaj ntseg thiab kev ntseeg siab ntawm cov hlau nplaum ua haujlwm.
6. Daim ntawv thov teb
Niobium bar yog dav siv nyob rau hauv electronics, tshuaj kev lag luam, aerospace, kws, thiab lwm yam kev lag luam, tshwj xeeb tshaj yog nyob rau hauv high-tech thiab precision manufacturing teb, xws li SEM kis tau tus mob electron qhov chaw, sib nqus resonance, magnetic cov ntaub ntawv, capacitive thiab inductive Cheebtsam, thiab lwm yam. .
Cim npe nrov: Tuam Tshoj niobium bar manufacturers, lwm tus neeg
