Karma Wire bakeng sa Precision Resistors (0.02mm, 0.03mm, 0.04mm)
Karma Wire bakeng sa Precision Resistors(0.02mm, 0.03mm, 0.04mm)
1. Alloy ea Karma
Karma alloy e entsoe ka koporo, nickel, Aluminium le Iron e le likarolo tsa mantlha. The resistivity ke makhetlo a 2 ~ 3 ho feta MENTONG. E na le mocheso o tlase oa mocheso oa ho hanyetsa (TCR), mocheso o tlase oa EMF khahlanong le koporo, ho hanyetsa ka nako e telele nako e telele le anti-oxidation e matla. Mocheso oa eona o sebetsang oa mocheso o pharaletseng ho feta MENTONG (-60 ~ 300ºC). E loketse ho etsa likarolo tse nepahetseng tsa ho hanyetsa hantle le khatello.
2. Boholo ba Karma
Mohala: 0.01mm-10mm
Ribone: 0.05 * 0.2mm-2.0 * 6.0mm
Tsela: 0.5 * 5.0mm-5.0 * 250mm
3.Karma Thepa
| lebitso | khoutu | Sebopeho se ka Sehloohong (%) | Standard | |||
| Cr | Al | Fe | Ni | |||
| Karma | 6J22 | 19-21 | 2.5~3.2 | 2.0~3.0 | bal. | JB/T 5328 |
| Lebitso | Khoutu | (20ºC) Ho hanyetsa (μΩ.m) | (20ºC) Temp. Coeff.Oa Khanyetso (αX10-6/ºC) | (0~100ºC) ThermalEMF vs. Koporo (μv/ºC) | Max.sebetsa Mocheso.(ºC) | (%) Elongation | (N/mm2) Tensile Matla | Standard |
| Karma | 6J22 | 1.33±0.07 | ≤±20 | ≤2.5 | ≤300 | >7 | ≥780 | JB/T 5328 |
4. Likarolo tse ikhethang tsa mohala oa ho hanyetsa Karma
1) Ho qala ka Nickel Chromium terata ea mocheso oa motlakase oa Sehlopha sa 1, re nkile sebaka sa Ni ka
Al le likarolo tse ling, 'me kahoo e fihletsoe ka mokhoa o nepahetseng oa ho hanyetsa thepa e ntlafalitsoeng
ho hanyetsa mocheso coefficient le mocheso electromotive matla khahlanong le koporo.
Ka keketso ea Al, re atlehile ho etsa hore molumo oa resistivity 1.2 o be moholo
ho feta Nickel Chromium terata ea mocheso ea motlakase ea Sehlopha sa 1 le matla a thata ka makhetlo a 1.3.
2) Coefficient ea bobeli ea mocheso β ea Karmalloy terata KMW e nyane haholo, - 0.03 × 10-6/ K2,
'me mocheso oa mocheso oa ho hanyetsa o fetoha hoo e batlang e le mola o otlolohileng ka hare ho bophara
mocheso oa mocheso.
Ka hona, mocheso oa mocheso o behiloe ho ba karolelano ea mocheso oa mocheso pakeng tsa
23 ~ 53 °C, empa 1 × 10-6/K, karolelano ea mocheso pakeng tsa 0 ~ 100 °C, le eona e ka
ho amoheloa bakeng sa coefficient ea mocheso.
3) Matla a motlakase khahlano le koporo lipakeng tsa 1 ~ 100 °C le ona a nyane, ka tlase ho + 2 μV/K, le
e bontša botsitso bo babatsehang nakong ea lilemo tse ngata.
4) Haeba sena se tla sebelisoa e le thepa ea ho hanyetsa ka mokhoa o nepahetseng, phekolo ea mocheso o tlaase oa mocheso ke
e hlokehang ho felisa ho khopama ho sebetsa joalo ka ha ho le joalo ka terata ea Manganin CMW.
