Hanti Karma
magac | code | Halabuurka ugu weyn (%) | Heerka
| |||
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 vs. Copper | Max.shaqaynta Heerkulka (ºC) | (%) Dheeraynta | (N/mm2) Jilicsan Xoog | Heerka |
Karma | 6J22 | 1.33±0.07 | ≤±20 | ≤2.5 | ≤300 | >7 | ≥780 | JB/T 5328 |
4. Tilmaamaha gaarka ah ee siliga iska caabinta Karma
1) Laga bilaabo Nickel Chromium siligga kuleylka korantada fasalka 1, waxaan ku beddelnay qaar ka mid ah Ni
Al iyo walxo kale, oo sidaas awgeed lagu gaadhay walxo iska caabin sax ah oo la wanaajiyey
Heerkulka isku-xidhka iska caabinta iyo kulaylka xoogga kuleyl ee ka dhanka ah naxaasta.
Marka lagu daro Al, waxaan ku guuleysanay inaan sameyno iska caabin mugga 1.2 jeer ka weyn
marka loo eego nickel Chromium siligga kulaylka korontada ee fasalka 1 iyo xoogga xajinta 1.3 jeer ka weyn.
2) Isku-xidhka heerkulka sare ee β ee siliga Karmalloy KMW waa mid aad u yar, - 0.03 × 10-6 / K2,
iyo qalooca heerkulka iska caabintu waxay noqotaa mid ku dhow xariiq toosan oo ballaaran dhexdeeda
kala duwanaanta heerkulka.
Sidaa darteed, isku xidhka heerkulku waxa loo dejiyay inuu noqdo celceliska isku xidhka heerkulka u dhexeeya
23 ~ 53 °C, laakiin 1 × 10-6/K, isku celceliska heerkulka u dhexeeya 0 ~ 100 °C, sidoo kale waxaa laga yaabaa.
in loo qaato isku xidhka heerkulka.
3) Xooga koronto ee ka soo horjeeda naxaasta inta u dhaxaysa 1 ~ 100 °C sidoo kale waa yar yahay, oo ka hooseeya + 2 μV/K, iyo
waxay muujisaa xasillooni aad u wanaagsan muddo sanado badan ah.
4) Haddii tan loo isticmaalo sida walxaha iska caabbinta saxda ah, daaweynta kulaylka hooseeya waa
loo baahan yahay si loo baabi'iyo qalloocyada habaynta si la mid ah kiiska siliga Manganin CMW.
Nooca dahaarka
Magaca dahaarka leh | Heerka kulaylkaºC (waqtiga shaqada 2000h) | Magaca Koodhka | GB Code | ANSI. NOOCA |
Siligga dahaadhka ah ee polyurethane | 130 | UEW | QA | MW75C |
Polyester silig la dahaadhay | 155 | PEW | QZ | MW5C |
Polyester-imide silig dhaldhala ah | 180 | EIW | QZY | MW30C |
Polyester-imide iyo polyamide-imide silig labajibbaaran oo dahaarka leh | 200 | EIWH(DFWF) | QZY/XY | MW35C |
Polyamide-imide silig dhaldhala ah | 220 | AIW | QXY | MW81C |