Hauv ntiaj teb ntawm kev tshawb fawb txog cov ntaub ntawv thiab kev tsim hluav taws xob, lo lus nug txog seb nichrome puas yog tus neeg coj hluav taws xob zoo lossis phem tau ua rau cov kws tshawb fawb, cov engineers, thiab cov kws tshaj lij hauv kev lag luam xav paub ntev. Ua ib lub tuam txhab ua lag luam hauv kev lag luam ntawm cov hlau hluav taws xob cua sov, Tankii nyob ntawm no los qhia txog qhov teeb meem nyuaj no.

Nichrome, ib qho hlau ua los ntawm nickel thiab chromium, muaj cov khoom siv hluav taws xob tshwj xeeb. Thaum xub thawj siab ib muag, thaum piv rau cov hlau uas muaj hluav taws xob ntau xws li tooj liab lossis nyiaj, nichrome yuav zoo li yog tus neeg coj hluav taws xob tsis zoo. Piv txwv li, tooj liab muaj hluav taws xob conductivity ntawm kwv yees li 59.6 × 10 ^ 6 S / m ntawm 20 ° C, thaum nyiaj conductivity yog kwv yees li 63 × 10 ^ 6 S / m. Qhov sib piv, nichrome muaj conductivity qis dua, feem ntau nyob rau hauv qhov ntau ntawm 1.0 × 10 ^ 6 - 1.1 × 10 ^ 6 S / m. Qhov sib txawv tseem ceeb no hauv cov nqi conductivity yuav ua rau ib tus neeg hu ua nichrome ua tus neeg coj hluav taws xob "phem".

Txawm li cas los xij, zaj dab neeg tsis xaus rau ntawd. Qhov kev ua hluav taws xob qis ntawm nichrome yog qhov khoom zoo hauv ntau daim ntawv thov. Ib qho ntawm kev siv ntau tshaj plaws ntawm nichrome yog nyob rau hauv cov khoom cua sov. Thaum lub zog hluav taws xob hla dhau tus neeg coj, raws li Joule txoj cai (P = I²R, qhov twg P yog lub zog dissipated, I yog tam sim no, thiab R yog qhov tsis kam), lub zog raug dissipated hauv daim ntawv ntawm cua sov. Nichrome qhov kev tiv thaiv siab dua piv rau cov neeg coj zoo xws li tooj liab txhais tau tias rau ib qho tam sim no, ntau cua sov yog tsim nyob rau hauv ibhlau nichromeQhov no ua rau nws yog ib qho khoom siv zoo tagnrho rau kev siv xws li cov tshuab ci mov, cov cua sov hluav taws xob, thiab cov cub tawg hauv kev lag luam.

Ntxiv mus, nichrome kuj muaj kev tiv thaiv zoo heev rau kev oxidation thiab corrosion. Hauv qhov chaw kub siab uas feem ntau siv cov khoom cua sov, lub peev xwm los tiv thaiv kev puas tsuaj yog qhov tseem ceeb. Txawm hais tias nws qhov kev coj ua qis dua yuav yog qhov tsis zoo hauv cov ntawv thov uas txo qis kev tiv thaiv yog qhov tseem ceeb, xws li hauv cov kab hluav taws xob xa hluav taws xob, nws dhau los ua qhov zoo dua hauv cov ntawv thov cua sov.

Los ntawm [Lub Npe Tuam Txhab] qhov kev xav, kev nkag siab txog cov khoom ntawm nichrome yog qhov tseem ceeb rau peb txoj kev tsim khoom thiab kev tsim kho tshiab. Peb tsim ntau yam khoom siv cua sov raws li nichrome uas siv rau hauv ntau yam lag luam. Peb pab neeg R & D yeej ib txwm ua haujlwm rau kev ua kom zoo dua ntawm cov khoom sib xyaw ntawm nichrome alloys kom txhim kho lawv cov kev ua tau zoo. Piv txwv li, los ntawm kev kho qhov sib piv ntawm nickel thiab chromium, peb tuaj yeem kho qhov hluav taws xob tsis kam thiab cov khoom siv kho tshuab ntawm cov hlau kom haum rau cov kev xav tau ntawm daim ntawv thov tshwj xeeb.

Xaus lus, qhov kev faib tawm ntawm nichrome ua tus coj hluav taws xob zoo lossis phem nyob ntawm qhov xwm txheej ntawm nws daim ntawv thov. Hauv thaj chaw ntawm kev coj hluav taws xob rau kev xa hluav taws xob zoo, nws tsis zoo li qee yam hlau. Tab sis hauv thaj chaw ntawm kev cua sov hluav taws xob, nws cov khoom ua rau nws yog cov khoom siv tsis tuaj yeem hloov pauv. Raws li thev naus laus zis txuas ntxiv hloov zuj zus, 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 tsim cov kev daws teeb meem cua sov zoo dua rau tsev neeg lossis cov khoom siv cua sov 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 cov ntawv thov cua sov hluav taws xob yav tom ntej.