I-Karma Wire ye-Precision Resistors(0.02mm, 0.03mm, 0.04mm)
1. Ingxubevange yeKarma
I-Karma alloy yenziwe ngethusi, i-nickel, i-Aluminium ne-Iron njengezingxenye eziyinhloko. I-resistivity iphakeme izikhathi ezingu-2 ~ 3 kune-MENTONG. Ine-coefficient ephansi yokushisa yokumelana (i-TCR), i-EMF eshisayo ephansi uma iqhathaniswa nethusi, ukuhlala njalo okuhle kokumelana isikhathi eside kanye ne-anti-oxidation eqinile. Izinga layo lokushisa elisebenzayo libanzi kune-MENTONG (-60~300ºC). Ilungele ukwenza izakhi zokumelana nokunemba okuhle kanye nobunzima.
2. Usayizi weKarma
Intambo: 0.01mm-10mm
Iribhoni: 0.05*0.2mm-2.0*6.0mm
Uhlaka: 0.5 * 5.0mm-5.0 * 250mm
3.Impahla yeKarma
igama | ikhodi | Ukwakhiwa Okuyinhloko (%) | Okujwayelekile | |||
Cr | Al | Fe | Ni | |||
I-Karma | 6j22 | 19-21 | 2.5~3.2 | 2.0~3.0 | bal. | I-JB/T 5328 |
Igama | Ikhodi | (20ºC) Ukungazweli (μΩ.m) | (20ºC) Temp. I-Coeff.Yokumelana (αX10-6/ºC) | (0~100ºC) I-ThermalEMF vs.Copper (μv/ºC) | Ukusebenza okuphezulu Izinga lokushisa.(ºC) | (%) Ukwelula | (N/mm2) I-tensile Amandla | Okujwayelekile |
I-Karma | 6j22 | 1.33±0.07 | ≤±20 | ≤2.5 | ≤300 | >7 | ≥780 | I-JB/T 5328 |
4. Izici ezihlukile ze-Karma resistance wire
1) Ukuqala nge-Nickel Chromium yezintambo zokushisa zikagesi ze-Class 1, sashintsha enye ye-Ni
I-Al nezinye izakhi, futhi ngaleyo ndlela kuzuzwe okunembayo ukumelana nokusetshenziswa okuthuthukisiwe
ukumelana nokushisa kwe-coefficient kanye nokushisa kwe-electromotive force ngokumelene nethusi.
Ngokungezwa kwe-Al, siphumelele ukwenza ivolumu yokuphikiswa izikhathi eziyi-1.2 ezinkulu
kunentambo yokushisa kagesi ye-Nickel Chromium Ikilasi 1 namandla aqinile ngokuphindwe izikhathi ezingu-1.3.
2) I-coefficient yesibili yokushisa engu-β ye-Karmalloy wire KMW incane kakhulu, - 0.03 × 10-6/ K2,
futhi ijika lokushisa lokumelana liphenduka cishe umugqa oqondile phakathi kobubanzi
izinga lokushisa.
Ngakho-ke, i-coefficient yezinga lokushisa isethwe ukuthi ibe yisilinganiso se-temperature coefficient phakathi
23 ~ 53 °C, kodwa 1 × 10-6/K, isilinganiso sesilinganiso sokushisa esiphakathi kuka-0 ~ 100 °C, singase futhi
yamukelwe i-coefficient yezinga lokushisa.
3) Amandla kagesi ngokumelene nethusi phakathi kuka-1 ~ 100 °C nawo mancane, ngaphansi kuka + 2 μV/K, futhi
ikhombisa ukuzinza okuhle kakhulu phakathi neminyaka eminingi.
4) Uma lokhu kuzosetshenziswa njengento yokumelana nokunemba, ukwelashwa kokushisa okuphansi
okudingekayo ukuze kuqedwe ukuhlanekezelwa kokucubungula njengoba kwenzeka ku-Manganin wire CMW.