Hlau Constantan yog cov hlau tsis muaj zog nrog tooj liab thiab npib tsib xee ua lub hauv paus tseem ceeb.
Nta: Nws muaj qhov kub thiab txias coefficient tsis kam, qhov dav ua haujlwm kub (qis dua 480 ° C), ua haujlwm tau zoo, thiab ua haujlwm tau zoo.
Feem ntau siv rau: ua cov khoom siv hluav taws xob hauv kev ntsuas, khoom siv hluav taws xob thiab cov khoom lag luam.
Ib qho ntxiv, muaj qhov hloov pauv tsis tu ncua tshiab, uas yog tooj liab-hlau-raws li cov hlau phom. Nws muaj qhov tiv taus tib yam li Constantan, ib puag ncig zoo sib xws tiv taus kub coefficient, thiab ua haujlwm kub ib yam. Piv nrog cov hlau tsis sib haum tsis tu ncua, qhov hloov pauv tshiab muaj qhov zoo ntawm tus nqi qis vim tias nws tsis muaj tus nqi ntau dua ntawm npib tsib xee, tab sis nws qhov kev tiv thaiv oxidation tsis zoo dua li ntawm qhov tsis tu ncua. Nws tuaj yeem hloov cov hlau txuas tsis sib haum hauv ntau yam.
Muaj nuj nqi hauv kev tsim cov cai tswj fais fab mov: tiv thaiv tam sim no, ntsuas ntsuas tam sim no.
Cov cuab yeej tseem ceeb ntawm cov khoom siv tas mus li, qhov hloov pauv tshiab, tooj liab-manganese tiv taus hlau (GB/T1234-95 tus qauv):
Kev ua tau zoo / qib kawm
Constantan 6J40
Tshiab Constantan 6J11
Manganese 6J12
F1 manganese tooj liab 6J8
F2 manganese tooj liab 6J13
Cov tshuaj lom neeg tseem ceeb%
Ni
39-41
__
2-3
___
2-5
Mn
1-2
10.5-12.5
11-13
8-10
11-13
Cu
npoo
npoo
npoo
npoo
npoo
lwm yam
__
Al: 2.5-4.5
Nqe: 1.0-1.6
__
Yog: 1-2
__
Cheebtsam siv tau kub ℃
5-500
5-500
5-45
10-80
10-80
Ceev g/m3
8.88
8.00
8.44
8.70
8.40
Resistivity.m, 20 ℃
0.48±0.03
0.48±0.03
0.46±0.03
0.35±0.05
0.44±0.04
Kub Coefficient ntawm Kuj
aí10-6/℃
+40
-40
+80
-80
+20
-3
+10
-5
40
Thermal electromotive quab yuam rau tooj liab
V/℃(0-100℃)
45
2
1
2
2
Kev rho tawm% (& gt; 0.5)
≥15
≥15
≥15
≥15
≥15
koom
Austenite
Austenite
Austenite
Austenite
Austenite
sib nqus
Tsis-sib nqus
Tsis-sib nqus
Tsis-sib nqus
Tsis-sib nqus
Tsis-sib nqus
Constantan hlau (6J40) cuam tshuam txog kev ntsuas tsis zoo
Txoj kab uas hla (hli)
Kuj ib 'meter' (Ω/m)
Qhov chaw saum npoo av ib lub 'meter' (cm²/m)
Hla ntu ntu (mm²)
2.0
0.153
62.8
3.14
1.8
0.189
56.5
2.54
1.7
0.212
53.4
2.27
1.5
0.272
47.1
1.77
1.4
0.305
43.9
1.54
1.2
0.424
37.7
1.13
1.0
1.611
31.4
0.785
0.9
0.755
28.3
0.636
0.8
0.951
25.1
0.503
