Mofuta oa Thermocouple K Alumel / Chromel Rod / Stick / Bar 6mm 8mm 9mm 10mm 12mm
Mofuta oa Thermocouple K Alumel /Molamu oa Chromel/ Thupa / Bar 6mm 8mm 9mm 10mm 12mm
TYPE K (CHROMEL vs ALUMEL) e sebelisoa ho oxidizing, inert kapa omeletseng ho fokotsa moea. E tlameha ho sireletsoa moeeng oa sebabole le oxidizing hanyane. E ka tšeptjoa ebile e nepahetse haholo ha mocheso o le holimo.
1.Lik'hemik'haleSebopeho
| Lintho tse bonahalang | Sebopeho sa lik'hemik'hale (%) | ||||
| Ni | Cr | Si | Mn | Al | |
| KP(Chromel) | 90 | 10 | |||
| KN(Alumel) | 95 | 1-2 | 0.5-1.5 | 1-1.5 | |
2.Thepa ea 'Mele le Thepa ea Mechini
| Lintho tse bonahalang |
Boima ba 'mele(g/cm3) | Sebaka se qhibilihang ℃) | Tensile Strength(Mpa) | Ho hanyetsa molumo (μΩ.cm) | Sekhahla sa bolelele (%) |
| KP(Chromel) | 8.5 | 1427 | > 490 | 70.6(20℃) | >10 |
| KN(Alumel) | 8.6 | 1399 | >390 | 29.4(20℃) | >15 |
3.Phapang ea Boleng ba EMF ka Mocheso o Fapaneng
| Lintho tse bonahalang | Boleng ba EMF Vs Pt(μV) | |||||
| 100 ℃ | 200 ℃ | 300 ℃ | 400 ℃ | 500 ℃ | 600 ℃ | |
| KP(Chromel) | 2816-2896 | 5938~6018 | 9298~9378 | 12729~12821 | 16156~16266 | 19532–19676 |
| KN(Alumel) | 1218~1262 | 2140~2180 | 2849-2893 | 3600~3644 | 4403~4463 | 5271~5331 |
| Boleng ba 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 |
| Mefuta e sa tšoaneng ea Thermocouple le Index | ||
| Mefuta-futa | Mofuta | Mekhahlelo(°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 Type K Rod Application
Tšobotsi ea Mofuta oa K ke hore o na le ts'ebetso e matla ea anti-oxidation, 'me e lokela ho sebelisoa ka ho tsoelang pele moeeng oa oxidizing le oa inert. Mocheso oa tšebeliso ea nako e telele ke 1000 ℃ le nako e khuts'oane ea 1200 ℃. Ke eona e sebelisoang ka ho fetisisa har'a li-thermocouples tsohle; (e ke ke ea sebelisoa ho fokotsa sepakapaka sa khase).
Thermocouple Ho sebetsa le ho lekanya Mocheso oa Mocheso:
| Thermocouple Material | Mocheso o sebetsang Range le Mamello | |||||
| Sehlopha sa I | Sehlopha sa II | |||||
| Index | Anode | Cathode | Ho lekanya mocheso | Mamello | Ho lekanya mocheso | Mamello |
| K | NiCr10 | NiAl2 | -40 ℃-1000 ℃ | ±1.5℃ kapa ±0.4%*T | 40 ℃-1200 ℃ | ±2.5℃ kapa 0.75%*T |
| T | Cu | CuNi40 | -40 ℃-350 ℃ | 40 ℃-350 ℃ | ±1℃ kapa 0.75%*T | |
| J | Fe | CuNi40 | -40 ℃-750 ℃ | 40 ℃-750 ℃ | ±2.5℃ kapa 0.75%*T | |
| E | NiCr10 | CuNi45 | -40 ℃-800 ℃ | 40 ℃-900 ℃ | ||
| N | NiCr14Si | NiSi4Mg | -40 ℃-1000 ℃ | 40 ℃-1200 ℃ | ±2.5℃ kapa 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 | P-30%Rh | Pt-6%Rh | - | - | 600 ℃-1700 ℃ | ±1.5℃ kapa 0.25%*T |
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