1.ChemicalComposition
Material | Kuumbwa kwekemikari (%) | ||||
Ni | Cr | Si | Mn | Al | |
KP(Chromel) | 90 | 10 | |||
KN(Alumel) | 95 | 1-2 | 0.5-1.5 | 1-1.5 |
2.Zvinhu zvemuviriuye Mechnical properties
Material | Density (g/cm3) | Melting point℃) | Tensile Simba (Mpa) | Kusagadzikana kwehuwandu (μΩ.cm) | Elongation rate (%) |
KP(Chromel) | 8.5 | 1427 | >490 | 70.6(20℃) | >10 |
KN(Alumel) | 8.6 | 1399 | >390 | 29.4(20℃) | >15 |
3.EMF Kukosha renji pane tembiricha yakasiyana
Material | EMF kukosha 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 |
EMF kukosha 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 |
TYPE K (CHROMEL vs ALUMEL)inoshandiswa mune oxidizing, inert kana yakaoma kuderedza mamiriro ekunze. Kuratidzwa kune vacuum kunogumira kunguva pfupi. Inofanirwa kuchengetedzwa kubva kune sulfurous uye marginally oxidizing atmospheres. Kuvimbika uye kwakarurama pakupisa kwepamusoro.
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