Waea Karma mo nga Atete Tika (0.02mm, 0.03mm, 0.04mm)
Waea Karma mo nga Kaitautoko Tika(0.02mm, 0.03mm, 0.04mm)
1. Karma alloy
Ko te koranu Karma he parahi, he nickel, he konumohe me te rino hei waahanga matua. Ko te parenga he 2~3 wa teitei ake i te MENTONG. He iti ake te whakarea pāmahana o te ātete (TCR), te iti o te EMF waiariki ki te parahi, he pai te pumau o te aukati mo te wa roa me te kaha anti-oxidation. Ko tana awhe pāmahana mahi he whanui ake i te MENTONG (-60~300ºC). He pai mo te hanga i nga huānga parenga me te riaka.
2. Rahi Karma
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) 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.
