1.KemikaliCkupinga
Nyenzo | Muundo wa kemikali (%) | ||||
Ni | Cr | Si | Mn | Al | |
KP(Chromel) | 90 | 10 | |||
KN(Alumel) | 95 | 1-2 | 0.5-1.5 | 1-1.5 |
2.Tabia za kimwilina Mali za Kiufundi
Nyenzo | Msongamano (g/cm3) | Kiwango myeyuko℃) | Nguvu ya Mkazo (Mpa) | Ustahimilivu wa sauti (μΩ.cm) | Kiwango cha urefu (%) |
KP(Chromel) | 8.5 | 1427 | > 490 | 70.6(20℃) | >10 |
KN(Alumel) | 8.6 | 1399 | >390 | 29.4(20℃) | >15 |
3.Kiwango cha Thamani cha EMF katika halijoto tofauti
Nyenzo | Thamani ya 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 |
Thamani ya 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 |
AINA K (CHROMEL dhidi ya ALUML)hutumika katika angahewa za kupunguza vioksidishaji, ajizi au kavu. Mfiduo wa utupu ni wa muda mfupi tu. Lazima ilindwe dhidi ya angahewa zenye salfa na zenye vioksidishaji kidogo. Inaaminika na sahihi kwa joto la juu.
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