Barikin jan ƙarfe (tashar motar jan ƙarfe) resistivity, iya aiki, aiki

Barikin jan ƙarfe (tashar motar jan ƙarfe) resistivity, iya aiki, aiki Standarda'idar masana'antu: YS / T 478-2005 Bakin ƙarfe da jan ƙarfe alloy conductivity eddy na halin yanzu na gwaji Resistivity (resistivity): Yawan jiki ne wanda ake amfani dashi don bayyana halayen juriya na abubuwa daban-daban. A zazzabi a daki (a 20 ° C), juriya na waya da aka yi da kayan tare da tsayin 1 mita da yanki na yanki na milimita 1 mil ana kiransa resistivity na wannan kayan busbar punching kayan aiki. Karkashin wani zazzabi, akwai tsari R = ρl / s inda ρ shine resistivity, l shine tsawon kayan, s kuma shine yankin. Ana iya ganin juriya daga kayan abu daidai gwargwado ga tsawon kayan kuma inversely gwargwado ga yankin sa. Daga wannan tsari na

sama zamu iya ganin ma'anar resistivity: ρ = Rs / l Tsarin ƙonewa Resistivity: Maganin ƙididdigar resistivity shine: tivity = RS / L Is resistivity-da aka saba amfani dashi Ω.mm2 / m S shine yanki-giciye-yanki yanki-yawanci ana amfani da mm2 R shine darajar juriya da ake amfani da ita Ω L shine tsawon waya wacce aka saba amfani da ita m Samfurawar Samfura: Adadin rabo zuwa wani daidaitaccen darajar ana kiransa aiwatar da samfurin. A cikin shekarar 1913, daidaitacciyar tagulla ta kasa da kasa ta shimfida cewa anlalle mai amfani da jan ƙarfe tare da yawansu ya kai 8.89g / cm3, tsayin 1m,

yawan 1g, da juriya na 0.15328 ohms da

aka yi amfani da matsayin ma'auni. A zazzabi na 200C, lokacin da wutar lantarki reshen karfe na jan karfe ta kasance 0.017241Ω.mm2 / m ko wutar lantarki ita ce 58.0 MS / m), an ƙaddara ta zama 100% IACS (International Annealed Copper Standard), da iya aiki na kowane kayan (% IACS) za'a iya lissafta ta amfani da wannan tsari: Gudanarwa (% IACS) = 0.017241 / ρ * 100% Gudanarwa: 1. Sakamakon resistivity shine aiki. σ = 1 / ρ 2. Naúra: A Systemasa Na Systemasa Tsarin Nau'o'i, ɓangaren gudanarwa shine Siemens / m (MS / m). 3. Ma'anar jiki a jikin aiki shine nuna warin lantarki. Mafi girman ƙarfin wutan lantarki, da ƙarfiwar wutar lantarki, haka kuma. samfurin 20 ℃ DC resistivity Ω · mm2 / m Gudanarwa% / M Gudanarwa% IACS TMR THMR ≤0.017 241 ≥58 ≥100 TMY THMY ≤0.017 77 ≥56.5 ≥97