Karmacabbirka
Silig: 0.01mm-10mm
Ribbon: 0.05*0.2mm-2.0*6.0mm
Xarigga: 0.5*5.0mm-5.0*250mm
3. Hantida Karma
| magac | kood | Halabuurka ugu Muhiimsan (%) | Heerka Caadiga ah | |||
| Cr | Al | Fe | Ni | |||
| Karma | 6J22 | 19~21 | 2.5~3.2 | 2.0~3.0 | bal. | JB/T 5328 |
| Magaca | Koodhka | (20ºC) Iska caabin (μΩ.m) | (20ºC) Heerkulka. Coeff. Of Resistance (αX10-6/ºC) | (0~100ºC) ThermalEMF iyo Copper (μv/ºC) | Ugu badan.shaqaynta Heerkulka (ºC) | (%) Kordhinta | (N/mm2) Gariir Xoog | Heerka Caadiga ah |
| Karma | 6J22 | 1.33±0.07 | ≤±20 | ≤2.5 | ≤300 | >7 | ≥780 | JB/T 5328 |
4. Astaamaha gaarka ah ee fiilada iska caabbinta Karma
1) Laga bilaabo fiilada kulaylka korontada ee Nickel Chromium Class 1, waxaan qaar ka mid ah Ni ku beddelnay Al iyo walxo kale, sidaas darteedna waxaan ku gaarnay agab iska caabin sax ah oo leh isku-dhafka heerkulka iska caabbinta oo la hagaajiyay iyo xoogga elektaroonigga kulaylka ee ka dhanka ah naxaasta.
Marka lagu daro Al, waxaan ku guuleysanay inaan ka dhigno iska caabinta mugga 1.2 jeer mid ka weyn
Fiilada kulaylka korontada ee Nickel Chromium Fasalka 1aad iyo xoogga jiidista oo ka badan 1.3 jeer.
2) Heerkulka labaad ee β ee fiilada Karmalloy KMW aad ayuu u yar yahay, - 0.03 × 10-6/ K2,
qalooca heerkulka iska caabbinta wuxuu isu beddelaa ku dhawaad khad toosan oo ku dhex jira heerkul ballaaran.
Sidaa darteed, isku-dhafka heerkulka waxaa loo dejiyay inuu noqdo isku-dhafka heerkulka celceliska inta u dhaxaysa 23 ~ 53 °C, laakiin 1 × 10-6/K, isku-dhafka heerkulka celceliska u dhexeeya 0 ~ 100 °C, ayaa sidoo kale laga yaabaa
loo qaato heerka heerkulka.
3) Awoodda korontada ee ka dhanka ah naxaasta inta u dhaxaysa 1 ~ 100 °C sidoo kale waa yar tahay, ka hooseysa + 2 μV/K, waxayna muujisaa xasillooni aad u fiican muddo sannado badan ah.
4) Haddii tan loo isticmaalo sidii walxo iska caabin sax ah, daaweynta kulaylka heerkulka hooseeya ayaa loo baahan yahay si loo baabi'iyo qallooca habaynta sida kiiska siligga Manganin CMW.
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