Thermocouple Iru K Alumel / Chromel Rod / Stick / Pẹpẹ 6mm 8mm 9mm 10mm 12mm
Thermocouple Iru K Alumel /Chromel Rod/ Stick / Pẹpẹ 6mm 8mm 9mm 10mm 12mm
TYPE K (CHROMEL vs ALUMEL) ni a lo ninu oxidizing, inert tabi gbígbẹ idinku awọn bugbamu. O gbọdọ ni aabo lati imi-ọjọ ati awọn oju-aye oxidizing kekere. O jẹ igbẹkẹle ati pe o ni deede ni awọn iwọn otutu giga.
1.KemikaliTiwqn
| Ohun elo | Akopọ kemikali (%) | ||||
| Ni | Cr | Si | Mn | Al | |
| KP(Chromeli) | 90 | 10 | |||
| KN(Alumel) | 95 | 1-2 | 0.5-1.5 | 1-1.5 | |
2.Ti ara Properties ati darí Properties
| Ohun elo |
Ìwúwo (g/cm3) | Oju yo℃) | Agbara Fifẹ (Mpa) | Atako iwọn didun (μΩ.cm) | Oṣuwọn gigun (%) |
| KP(Chromeli) | 8.5 | 1427 | > 490 | 70.6 (20℃) | >10 |
| KN(Alumel) | 8.6 | 1399 | > 390 | 29.4(20℃) | >15 |
3.Iwọn Iye EMF ni Awọn iwọn otutu ti o yatọ
| Ohun elo | Iye EMF Vs Pt(μV) | |||||
| 100 ℃ | 200 ℃ | 300 ℃ | 400 ℃ | 500 ℃ | 600 ℃ | |
| KP(Chromeli) | 2816-2896 | 5938-6018 | 9298-9378 | 12729-12821 | Ọdun 16156-16266 | Ọdun 19532-19676 |
| KN(Alumel) | Ọdun 1218-1262 | 2140-2180 | 2849-2893 | 3600-3644 | 4403-4463 | 5271-5331 |
| Iye EMF Vs Pt(μV) | ||||
| 700 ℃ | 800 ℃ | 900 ℃ | 1000 ℃ | 1100 ℃ |
| 22845-22999 | 26064-26246 | 29223-29411 | 32313-32525 | 35336-35548 |
| 6167-6247 | 7080-7160 | 7959-8059 | 8807-8907 | 9617-9737 |
| Thermocouple Orisirisi ati Atọka | ||
| Orisirisi | Iru | Iwọn Iwọn (°C) |
| NiCr-NiSi | K | -200-1300 |
| NiCr-CuNi | E | –200–900 |
| Fe-CuNi | J | –40–750 |
| Cu-CuNi | T | -200-350 |
| NiCrSi-NiSi | N | -200-1300 |
| NiCr-AuFe0.07 | NiCr-AuFe0.07 | –270–0 |
0.5 ″ 12.7mm KP Chromel KN Alumel Thermocouple Iru K Ohun elo K Rod
Iwa ti Iru K ni pe o ni iṣẹ ṣiṣe egboogi-ifoyina ti o lagbara, ati pe o yẹ ki o lo nigbagbogbo ni oxidizing ati bugbamu inert. Iwọn otutu lilo igba pipẹ jẹ 1000 ℃ ati igba kukuru 1200 ℃. O jẹ lilo pupọ julọ laarin gbogbo awọn thermocouples; (ko le ṣee lo atehinwa gaasi bugbamu).
Thermocouple Ṣiṣẹ ati Iwọn Iwọn Iwọn:
| Thermocouple Ohun elo | Ṣiṣẹ otutu Ibiti ati ifarada | |||||
| Kilasi I | Kilasi II | |||||
| Atọka | Anode | Cathode | Idiwọn termperature | Ifarada | Idiwọn termperature | Ifarada |
| K | NiCr10 | NiAl2 | -40℃-1000℃ | ±1.5℃ tabi ± 0.4%*T | 40℃-1200℃ | ±2.5℃ tabi 0.75%*T |
| T | Cu | CuNi40 | -40℃-350℃ | 40℃-350℃ | ±1℃ tabi 0.75%*T | |
| J | Fe | CuNi40 | -40℃-750℃ | 40℃-750℃ | ±2.5℃ tabi 0.75%*T | |
| E | NiCr10 | CuNi45 | -40℃-800℃ | 40℃-900℃ | ||
| N | NiCr14Si | NiSi4Mg | -40℃-1000℃ | 40℃-1200℃ | ±2.5℃ tabi 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℃ tabi 0.25%*T |
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