Karma Resistance Nichrome Waea mo te Waea Whakawera
KarmaTaonga
| 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) Whakatete ora | (20ºC) Temp. Koeff. O Atete | (0~100ºC) Ngawha EMF vs. Te parahi | Max.workin g | (%) Elongati on | (N/mm2) Tirohanga 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 me te Nickel Chromium waea wera hiko Class 1, i whakakapihia e matou etahi o te Ni
Al me etahi atu huānga, a na reira i tutuki i te rauemi ātete pū me te pai ake
whakarea pāmahana ātete me te kaha hiko hiko 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) He iti rawa te whakarea pāmahana tuarua β o te waea Karmalloy KMW, - 0.03 × 10-6/ K2,
a, ko te anau pāmahana parenga ka huri tata ki te raina tika i roto i te whanui
awhe pāmahana.
No reira, kua whakaritea te whakarea pāmahana ki te whakarea pāmahana toharite i waenga
23 ~ 53 °C, engari 1 × 10-6/K, te whakarea pāmahana toharite i waenga i te 0 ~ 100 °C, ka taea hoki
kia tangohia mo te whakarea pāmahana.
3) He iti ano te kaha hiko ki te parahi i waenga i te 1 ~ 100 °C, kei raro + 2 μV/K, me
ka whakaatu i te tino pumau i roto i nga tau maha.
4) Mena ka whakamahia tenei hei rauemi tuuturu, he maimoatanga wera wera iti
e hiahiatia ana ki te whakakore i nga huringa tukatuka pera i te keehi o te waea Manganin CMW.
