Uhlobo lweThermocouple K Alumel / Chromel Rod / Intonga / Ibha 6mm 8mm 9mm 10mm 12mm
Uhlobo lwe-Thermocouple K Alumel /I-Chromel Rod/ Intonga / Ibha 6mm 8mm 9mm 10mm 12mm
UHLOBO K (CHROMEL vs ALUMEL) lusetyenziswa kwi-oxidizing, inert okanye eyomileyo yokunciphisa umoya. Kufuneka ikhuselwe kwi-atmosphere yesulfure kunye ne-oxidizing. Ithembekile kwaye ichaneke kakhulu kumaqondo obushushu aphezulu.
1.IkhemikhaliUkuqamba
| Izinto eziphathekayo | Ukwakheka kweekhemikhali (%) | ||||
| Ni | Cr | Si | Mn | Al | |
| KP(Chromel) | 90 | 10 | |||
| KN(Alumel) | 95 | 1-2 | 0.5-1.5 | 1-1.5 | |
2.IiPropati zoMzi kunye neePropati zoomatshini
| Izinto eziphathekayo |
Uxinaniso(g/cm3) | Indawo yokunyibilika℃) | Amandla Okuqina (Mpa) | Ukumelana nomthamo (μΩ.cm) | Umlinganiselo wobude (%) |
| KP(Chromel) | 8.5 | 1427 | >490 | 70.6(20℃) | >10 |
| KN(Alumel) | 8.6 | 1399 | >390 | 29.4(20℃) | >15 |
3.Uluhlu lwexabiso le-EMF kwiqondo lobushushu elahlukileyo
| Izinto eziphathekayo | Ixabiso le-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 |
| Ixabiso le-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 |
| Iintlobo ezahlukeneyo ze-Thermocouple kunye ne-Index | ||
| Iintlobo ngeentlobo | Uhlobo | Uluhlu lomlinganiselo(°C) |
| NiCr-NiSi | K | –200–1300 |
| I-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 Uhlobo lweSicelo sentonga ye-K
Uphawu lohlobo lwe-K lunentsebenzo eqinile yokuchasana ne-oxidation, kwaye kufuneka isetyenziswe ngokuqhubekayo kwi-oxidizing kunye ne-inert atmosphere. Ubushushu bokusetyenziswa kwexesha elide yi-1000 ℃ kunye ne-1200 ℃ yexesha elifutshane. Yeyona isetyenziswa kakhulu phakathi kwazo zonke ii-thermocouples; (ayinakusetyenziselwa ukunciphisa umoya wegesi).
Uluhlu oluSebenzayo lweThermocouple kunye nokulinganisa lobushushu:
| Izinto zeThermocouple | Ubushushu bokusebenza Uluhlu kunye noNyamezelo | |||||
| Iklasi I | Udidi II | |||||
| Isalathiso | Anode | Cathode | Umlinganiselo wexesha | Ukunyamezelana | Umlinganiselo wexesha | Ukunyamezelana |
| K | I-NiCr10 | NiAl2 | -40℃-1000℃ | ±1.5℃ okanye ±0.4%*T | 40℃-1200℃ | ±2.5℃ okanye 0.75%*T |
| T | Cu | CuNi40 | -40℃-350℃ | 40℃-350℃ | ±1℃ okanye 0.75%*T | |
| J | Fe | CuNi40 | -40℃-750℃ | 40℃-750℃ | ±2.5℃ okanye 0.75%*T | |
| E | I-NiCr10 | CuNi45 | -40℃-800℃ | 40℃-900℃ | ||
| N | NiCr14Si | I-NiSi4Mg | -40℃-1000℃ | 40℃-1200℃ | ±2.5℃ okanye 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℃ okanye 0.25%*T |
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