Nicr20alsi me te Uara Ppm Pai Karma Alloy Waea
Karmarahi
Waea: 0.01mm-10mm
Ripene: 0.05*0.2mm-2.0*6.0mm
Wehe: 0.5*5.0mm-5.0*250mm
3.Karma Taonga
| ingoa | waehere | Tito Matua (%) | Paerewa | |||
| Cr | Al | Fe | Ni | |||
| Karma | 6J22 | 19~21 | 2.5~3.2 | 2.0~3.0 | pā. | JB/T 5328 |
| Ingoa | Waehere | (20ºC) Te ātete (μΩ.m) | (20ºC) Temp.Coeff.O te Atete (αX10-6/ºC) | (0~100ºC) ThermalEMF vs.Copper (μv/ºC) | Max.mahi Temp.(ºC) | (%) Te whakaroa | (N/mm2) Tana Te kaha | Paerewa |
| Karma | 6J22 | 1.33±0.07 | ≤±20 | ≤2.5 | ≤300 | >7 | ≥780 | JB/T 5328 |
4. Nga ahuatanga motuhake o te waea aukati Karma
1) Ka timata mai i te Nickel Chromium waea wera hiko Class 1, i whakakapihia e matou etahi o te Ni ki te Al me etahi atu huānga, na reira i tutuki ai he rauemi aukati tika me te pai ake o te whakarea o te pāmahana parenga me te kaha hiko wera ki te parahi.
Na te taapiri o Al, kua angitu matou ki te hanga i te parenga rōrahi kia 1.2 te rahi ake
atu i te Nickel Chromium waea wera hiko Class 1 me te kaha tensile 1.3 wa nui ake.
2) Ko te whakarea pāmahana tuarua β o te waea Karmalloy KMW he iti rawa, - 0.03 × 10-6 / K2,
a ka huri te anau pāmahana parenga ki te tata ki te raina tika i roto i te whānuitanga o te pāmahana.
Na reira, kua whakaritea te whakarea pāmahana ki te whakarea pāmahana toharite i waenganui i te 23 ~ 53 °C, engari 1 × 10-6/K, te taurite pāmahana toharite i waenganui i te 0 ~ 100 °C, ano pea
kia tangohia mo te whakarea pāmahana.
3) Ko te kaha hiko ki te parahi i waenga i te 1 ~ 100 °C he iti ano hoki, i raro iho i te + 2 μV / K, me te whakaatu i te tino pai mo te wa o nga tau maha.
4) Mena ka whakamahia tenei hei rauemi tuuturu, ka hiahiatia te maimoatanga wera wera iti hei whakakore i nga huringa tukatuka pera i te keehi o te waea Manganin CMW.
