Nicr20alsi yokhala ndi Good Ppm Value Karma Alloy Wire
Karmakukula
Waya: 0.01mm-10mm
Riboni: 0.05 * 0.2mm-2.0 * 6.0mm
Mzere: 0.5 * 5.0mm-5.0 * 250mm
3.Karma Katundu
| dzina | kodi | Kupanga Kwakukulu (%) | Standard | |||
| Cr | Al | Fe | Ni | |||
| Karma | 6j22 ndi | 19-21 | 2.5-3.2 | 2.0-3.0 | bala. | JB/T 5328 |
| Dzina | Kodi | (20ºC) Kukaniza (μΩ.m) | (20ºC) Temp.Coeff.Of Resistance (αX10-6/ºC) | (0 ~ 100ºC) ThermalEMF vs. Copper (μv/ºC) | Max.ntchito Kutentha.(ºC) | (%) Elongation | (N/mm2) Tensile Mphamvu | Standard |
| Karma | 6j22 ndi | 1.33±0.07 | ≤±20 | ≤2.5 | ≤300 | > 7 | ≥780 | JB/T 5328 |
4. Makhalidwe apadera a Karma resistance waya
1) Kuyambira ndi Nickel Chromium waya wotentha wamagetsi Kalasi 1, tidasintha zina mwa Ni ndi Al ndi zinthu zina, ndipo potero tidapeza zida zolimbikira zolimbana ndi kukana kutentha kokwanira komanso mphamvu yamagetsi yamagetsi motsutsana ndi mkuwa.
Ndi kuwonjezera kwa Al, tachita bwino kupanga voliyumu resistivity 1.2 nthawi zazikulu
kuposa Nickel Chromium mawaya otentha amagetsi a Gulu 1 ndi mphamvu zamakokedwe kuwirikiza ka 1.3.
2) Kutentha kwachiwiri β wa waya wa Karmalloy KMW ndi kochepa kwambiri, - 0.03 × 10-6 / K2,
ndi kukana kutentha pamapindikira kumakhala pafupifupi mzere wowongoka mkati mwa kutentha kwakukulu.
Chifukwa chake, kutentha kwapakati kumayikidwa kukhala pafupifupi kutentha kwapakati pa 23 ~ 53 °C, koma 1 × 10-6/K, pafupifupi kutentha kwapakati pa 0 ~ 100 ° C, kungathenso.
kutengera kutentha kwa coefficient.
3) Mphamvu yamagetsi yolimbana ndi mkuwa pakati pa 1 ~ 100 °C ndi yaying'ono, pansi pa + 2 μV/K, ndipo imawonetsa kukhazikika bwino kwazaka zambiri.
4) Ngati izi zikuyenera kugwiritsidwa ntchito ngati chida chokanira molondola, chithandizo cha kutentha kwa kutentha kumafunika kuti athetse kupotoza kwa kukonza monga momwe zimakhalira ndi waya wa Manganin CMW.
