Sharaxaada Alaabta
Xadhkaha iska caabbinta ee la dahaadhay ayaa si balaadhan loogu isticmaalay iska caabiyeyaasha caadiga ah, baabuurta
Qaybaha, iska caabiyeyaasha dabaysha, iwm. iyadoo la adeegsanayo habka dahaarka ee ugu habboon codsiyadan, iyadoo si buuxda looga faa'iidaysanayo sifooyinka gaarka ah ee dahaadhka dhaldhalaalka.
Intaa waxa dheer, waxaanu samayn doonaa dahaarka dhaldhalaalka ee siligga birta ah ee qaaliga ah sida qalinka iyo siliga platinum marka la dalbado. Fadlan ka faa'iidayso wax-soo-saarkan-dalbashada.
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 dhaqan | (20ºC) Heerkulka Coeff Iska caabinta | (0 ~ 100ºC) Kulul EMF vs. Copper | Max.workin g | (%) Elongati on | (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.
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 habaysan sida kiiska Manganin silig 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 dahaadhay | 180 | EIW | QZY | MW30C |
| Polyester-imide iyo polyamide-imide oo labajibbaaransilig dhalaalaysa | 200 | EIWH (DFWF) | QZY/XY | MW35C |
| Polyamide-imide silig dhaldhala ah | 220 | AIW | QXY | MW81C |

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