Thermocouple Hom K Alumel / Chromel Qws / Stick / Bar 6mm 8mm 9mm 10mm 12mm
Thermocouple Hom K Alumel /Chromel Rod/ Stick / Bar 6mm 8mm 9mm 10mm 12mm
HOM K (CHROMEL vs ALUMEL) yog siv rau hauv oxidizing, inert lossis qhuav txo cov cua. Nws yuav tsum tau tiv thaiv los ntawm sulfurous thiab marginally oxidizing cua. Nws yog kev ntseeg siab thiab muaj qhov tseeb ntawm qhov kub thiab txias.
1.TshuajKev sib xyaw
| Khoom siv | Tshuaj muaj pes tsawg leeg (%) | ||||
| Ni | Cr | Si | Mn | Al | |
| KP (Chromel) | 90 | 10 | |||
| KN (Alumel) | 95 | 1-2 | 0.5-1.5 hli | 1-1.5 | |
2.Physical Properties thiab Mechanical Properties
| Khoom siv |
Qhov ceev (g / cm3) | Melting point ℃) | Tensile zog (Mpa) | Volume resistivity (μΩ.cm) | Elongation tus nqi (%) |
| KP (Chromel) | 8.5 | 1427 ib | > 490 | 70.6 (20 ℃) | > 10 |
| KN (Alumel) | 8.6 | 1399 ib | > 390 | 29.4 (20 ℃) | > 15 |
3.EMF Tus nqi ntau ntawm qhov sib txawv
| Khoom siv | EMF tus nqi Vs Pt (μV) | |||||
| 100 ℃ | 200 ℃ | 300 ℃ | 400 ℃ | 500 ℃ | 600 ℃ | |
| KP (Chromel) | 2816-2896 ib | 5938-6018 Ib | 9298-9378 ib | 12729-12821 ib | 16156-16266 ib | Xyoo 19532-19676 |
| KN (Alumel) | 1218-1262 ib | 2140-2180 Nws | 2849-2893 ib | 3600-3644 Ib | 4403-4463 Ib | 5271-5331 Ib |
| EMF tus nqi Vs Pt (μV) | ||||
| 700 ℃ | 800 ℃ | 900 ℃ | 1000 ℃ | 1100 ℃ |
| 22845-22999 ib | 26064-26246 ib | 29223-29411 ib | 32313-32525 | 35336-35548 |
| 6167-6247 Ib | 7080-7160 Ib | 7959-8059 Ib | 8807-8907 Ib | 9617-9737 Ib |
| Thermocouple Variety thiab Index | ||
| Ntau yam | Hom | Kev ntsuas ntau yam (°C) |
| NiCr-NiSi | K | -200-1300 Nws |
| NiCr-CuNi | E | -200-900 Nws |
| Fe-CuNi | J | -40-750 |
| Cu-CuNi | T | -200-350 |
| NiCrSi-NiSi | N | -200-1300 Nws |
| NiCr-AuFe 0.07 | NiCr-AuFe 0.07 | -270-0 |
0.5 "12.7mm KP Chromel KN Alumel Thermocouple Hom K Qws Daim Ntawv Thov
Tus yam ntxwv ntawm hom K yog tias nws muaj zog tiv thaiv oxidation kev ua tau zoo, thiab yuav tsum tau siv tas li nyob rau hauv oxidizing thiab inert cua. Lub sijhawm siv sijhawm ntev yog 1000 ℃ thiab lub sijhawm luv 1200 ℃. Nws yog qhov siv dav tshaj plaws ntawm tag nrho cov thermocouples; (nws tsis tuaj yeem siv txo cov pa cua).
Thermocouple Ua haujlwm thiab ntsuas qhov ntsuas kub:
| Cov khoom siv thermocouple | Ua hauj lwm kub Range thiab kam rau ua | |||||
| Chav kawm I | Chav II | |||||
| Index | Anode | Cathode | Kev ntsuas termperature | Ua siab ntev | Kev ntsuas termperature | Ua siab ntev |
| K | NiCr10 | NiAl 2 | -40 ℃ -1000 ℃ | ± 1.5 ℃ lossis ± 0.4% * T | 40 ℃ -1200 ℃ | ± 2.5 ℃ lossis 0.75% * T |
| T | Cu | CuNi 40 | -40 ℃ -350 ℃ | 40 ℃ -350 ℃ | ± 1 ℃ lossis 0.75% * T | |
| J | Fe | CuNi 40 | -40 ℃ -750 ℃ | 40 ℃ -750 ℃ | ± 2.5 ℃ lossis 0.75% * T | |
| E | NiCr10 | CuNi45 | -40 ℃ -800 ℃ | 40 ℃ -900 ℃ | ||
| N | NiCr14 Si | Nis 4Mg | -40 ℃ -1000 ℃ | 40 ℃ -1200 ℃ | ± 2.5 ℃ lossis 0.75% * T | |
| R | Pt-13% Rh | Pt | 0 ℃ -1000 ℃ | 0 ℃ -600 ℃ | ± 1.5 ℃ | |
| S | Pt-10% Rh | 1000 ℃ - 1600 ℃ | ± (1 + 0.003) | 600 ℃ - 1600 ℃ | 0.25% * T | |
| B | Pt-30% Rh | Pt-6% Rh | - | - | 600 ℃ - 1700 ℃ | ± 1.5 ℃ lossis 0.25% * T |
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