0.08mm Enamelled NICR alloy NiCr20AlSi/nichrome Karma Resistance Heating resistor wire
Karma Property
| zita | code | Maumbirwo Makuru (%) | Standard
| |||
| Cr | Al | Fe | Ni | |||
| Karma | 6J22 | 19~21 | 2.5~3.2 | 2.0~3.0 | bal. | JB/T 5328 |
| Zita | Code | (20ºC) Resistivity (μΩ.m) | (20ºC) Temp. Coeff.Of Resistance (αX10-6/ºC) | (0~100ºC) ThermalEMF vs. Mhangura | Max.kushanda Temp.(ºC) | (%) Elongation | (N/mm2) Tensile Simba | Standard |
| Karma | 6J22 | 1.33±0.07 | ≤±20 | ≤2.5 | ≤300 | >7 | ≥780 | JB/T 5328 |
4. Mamiriro akasiyana eKarma resistance wire
1) Kutanga neNickel Chromium yemagetsi kupisa waya Kirasi 1, takatsiva imwe yeNi ne
Al nezvimwe zvinhu, uye nekudaro vakawana chaiyo yekupikisa zvinhu nekuvandudzwa
kuramba tembiricha coefficient uye kupisa electromotive simba kurwisa mhangura.
Nekuwedzera kweAl, takabudirira mukugadzira vhoriyamu resistivity 1.2 times hombe
kupfuura Nickel Chromium yemagetsi kupisa waya Kirasi 1 uye simba rekusimba rakapetwa ka1.3.
2) Yechipiri tembiricha coefficient β yeKarmalloy waya KMW idiki kwazvo, - 0.03 × 10-6/ K2,
uye tembiricha yekudzivirira inoshanduka kuita inenge mutsara wakatwasuka mukati mehupamhi
tembiricha range.
Naizvozvo, iyo tembiricha coefficient inotarwa kuve avhareji tembiricha coefficient pakati
23 ~ 53 °C, asi 1 × 10-6/K, avhareji tembiricha coefficient pakati 0 ~ 100 °C, zvakare anogona
kugamuchirwa kune tembiricha coefficient.
3) Simba remagetsi kurwisa mhangura pakati pe1 ~ 100 °C idiki zvakare, pazasi + 2 μV/K, uye
inoratidza kugadzikana kwakanakisa kwenhambo yemakore akawanda.
4) Kana izvi zvichizoshandiswa sechinhu chakasimba chekupikisa, kupisa kwakadzika kwekushisa kurapwa ndiko
inodiwa kubvisa kukanganisa kugadzirisa sezvakangoita Manganin waya CMW.
Mhando yeInsulation
| Insulation-enamelled Zita | Thermal LevelºC (nguva yekushanda 2000h) | Zita rekodhi | GB Code | ANSI. TYPE |
| Polyurethane enamelled waya | 130 | UEW | QA | MW75C |
| Polyester enamelled waya | 155 | PEW | QZ | MW5C |
| Polyester-imide enamelled waya | 180 | EIW | QZY | MW30C |
| Polyester-imide uye polyamide-imide yakapetwa kaviri enameled waya | 200 | EIWH(DFWF) | QZY/XY | MW35C |
| Polyamide-imide enamelled waya | 220 | AIW | QXY | MW81C |
