Nyob rau hauv lub ntiaj teb no ntawm cov ntaub ntawv science thiab hluav taws xob engineering, lo lus nug ntawm seb nichrome yog ib tug zoo los yog phem conductor ntawm hluav taws xob tau ntev intrigued soj ntsuam, engineers, thiab kev lag luam cov tub txawg. Raws li lub tuam txhab ua lag luam hauv kev lag luam hluav taws xob cua sov alloys, Tankii nyob ntawm no los tso lub teeb ntawm qhov teeb meem nyuaj no.

Nichrome, ib qho alloy feem ntau tsim los ntawm nickel thiab chromium, muaj cov khoom hluav taws xob tshwj xeeb. Thaum xub thawj siab ib muag, thaum piv rau cov hlau conductive zoo li tooj liab lossis nyiaj, nichrome yuav zoo li tus neeg xyuas pib tsis zoo. Piv txwv li, tooj liab muaj hluav taws xob conductivity ntawm ib ncig ntawm 59.6 × 10 ^ 6 S / m ntawm 20 ° C, thaum nyiaj lub conductivity yog hais txog 63 × 10 ^ 6 S / m. Nyob rau hauv sib piv, nichrome muaj ib tug tsawg conductivity, feem ntau nyob rau hauv ntau ntawm 1.0 × 10 ^ 6 - 1.1 × 10 ^ 6 S / m. Qhov sib txawv tseem ceeb ntawm cov khoom siv hluav taws xob no yuav ua rau ib tus cim rau nichrome raws li "phem" tus neeg xyuas pib.

Txawm li cas los xij, zaj dab neeg tsis xaus rau ntawd. Qhov qis hluav taws xob conductivity ntawm nichrome yog qhov tsim nyog cov cuab yeej hauv ntau daim ntawv thov. Ib qho ntawm feem ntau siv nichrome yog nyob rau hauv cov khoom cua sov. Thaum cov hluav taws xob tam sim no dhau los ntawm tus neeg xyuas pib, raws li Joule txoj cai (P = I²R, qhov twg P yog lub zog dissipated, kuv yog tam sim no, thiab R yog qhov tsis kam), lub zog yog dissipated nyob rau hauv daim ntawv ntawm tshav kub. Nichrome qhov kev tiv thaiv siab dua piv rau cov khoom siv zoo xws li tooj liab txhais tau hais tias rau qhov muab tam sim no, cov cua sov ntau yog tsim nyob rau hauvnichrome hlau. Qhov no ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev siv xws li toasters, hluav taws xob cua sov, thiab cov khoom siv hluav taws xob.

Ntxiv mus, nichrome kuj muaj kev tiv thaiv zoo heev rau oxidation thiab corrosion. Hauv qhov chaw kub kub uas siv cov cua sov feem ntau, lub peev xwm los tiv thaiv degradation yog qhov tseem ceeb heev. Thaum nws cov conductivity qis dua tuaj yeem yog qhov tsis zoo hauv cov ntawv thov uas txo qhov kev tiv thaiv yog qhov tseem ceeb, xws li hauv cov kab xa hluav taws xob, nws dhau los ua qhov zoo sib xws hauv kev siv cua sov.

Los ntawm [Lub Tuam Txhab Lub Npe] qhov kev xav, kev nkag siab txog cov khoom ntawm nichrome yog qhov tseem ceeb rau peb cov khoom tsim thiab kev tsim kho tshiab. Peb tsim ntau yam ntawm nichrome - raws li cov cua sov uas siv nyob rau hauv ntau yam lag luam. Peb pab neeg R & D niaj hnub ua haujlwm ntawm kev ua kom zoo ntawm cov nichrome alloys los txhim kho lawv cov kev ua tau zoo. Piv txwv li, los ntawm kev nplua - kho qhov sib piv ntawm npib tsib xee thiab chromium, peb tuaj yeem kho cov hluav taws xob tsis zoo thiab cov khoom siv hluav taws xob ntawm cov hlau kom zoo dua rau cov ntawv thov tshwj xeeb.

Hauv kev xaus, kev faib tawm ntawm nichrome raws li qhov zoo lossis qhov tsis zoo ntawm cov hluav taws xob yog nyob ntawm cov ntsiab lus ntawm nws daim ntawv thov. Nyob rau hauv lub realm ntawm hluav taws xob conductivity rau lub hwj chim - npaum kis tau tus mob, nws tsis zoo li ib co lwm yam hlau. Tab sis nyob rau hauv lub tshav pob ntawm hluav taws xob cua sov, nws cov khoom ua rau nws ib tug irreplaceable khoom. Raws li kev siv thev naus laus zis txuas ntxiv mus, peb zoo siab los tshawb nrhiav txoj hauv kev tshiab los siv nichrome thiab lwm yam khoom siv cua sov kom tau raws li qhov xav tau ntawm ntau yam kev lag luam. Txawm hais tias nws tab tom tsim lub zog ntau dua - cov kev daws teeb meem cua sov zoo rau cov tsev neeg lossis cov khoom siv hluav taws xob ua haujlwm siab rau cov txheej txheem kev lag luam, cov khoom tshwj xeeb ntawmnichromeyuav txuas ntxiv ua lub luag haujlwm tseem ceeb hauv kev tsim lub neej yav tom ntej ntawm kev siv hluav taws xob cua sov.