2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Raws li peb paub alloys muaj siab resistivity thiab siab melting point piv rau cov hlau ntshiab. Yog li cov hlau tsis tuaj yeem yooj yim hlawv lossis oxidize ntawm qhov kub siab dua. Tam sim no raws li peb xav kom kub siab dua hauv cov khoom siv cua sov yog li peb siv cov alloys hauv cov khoom siv cua sov.
Vim li cas cov alloys siv hauv cov khoom siv cua sov?
Alloys yog siv rau hauv cov khoom siv hluav taws xob cua sov ntau dua li cov hlau ntshiab vim qhov kev tiv thaiv ntawm cov hlau yog ntau dua li qhov kev tiv thaiv ntawm cov hlau ntshiab. Alloys tsis hlawv yooj yim txawm nyob rau hauv high kub. … Nichrome tsis hlawv yooj yim ntawm qhov kub thiab txias xws li nws muaj qhov kub thiab txias dua li cov hlau.
Vim li cas cov alloys feem ntau siv hauv cov khoom siv hluav taws xob xws li hluav taws xob hlau thiab lub rhaub?
Assertion: Alloys feem ntau siv hauv cov khoom siv hluav taws xob cua sov xws li hluav taws xob hlau thiab cov cua sov. Yog vim li cas: Resistivity ntawm ib qho hlau feem ntau siab dua li ntawm nws cov khoom siv hlau tab sis cov alloys muaj cov ntsiab lus melting tsawg dua li lawv cov hlau sib xyaw.
Yuav ua li cas yog siv rau hauv hluav taws xob rhaub?
Nichrome: Feem ntau cov xaim hluav taws xob cua sov feem ntau siv nichrome 80/20 (80% Nickel, 20% Chromium) hlau, ribbon, los yog sawb. Nichrome 80/20 yog cov khoom siv zoo tshaj plaws, vim tias nws muaj qhov ua haujlwm siab thiab tsim cov txheej txheem ntawm chromium oxide thaum nws tau sov thawj zaug.
Cov hlau twg yog siv hluav taws xobCov khoom cua sov?
Nichrome yog cov hlau alloy ua los ntawm ib ncig ntawm 20 feem pua ntawm chromium thiab 80 feem pua nickel. Tus yuam sij rau kev ua haujlwm ntawm cov khoom siv hluav taws xob cua sov yog lub luag haujlwm ntawm nichrome hauv nws. Nichrome tau tshwm sim sai sai ua cov hlau lead uas siv los ntawm cov khoom siv hluav taws xob cua sov.
Pom zoo:
Puas siv hluav taws xob hauv qhov hluav taws xob tuaj yeem siv rau ntawm qhov loj?
Txawm hais tias tsawg dua, lwm hom kev siv hluav taws xob hauv av tuaj yeem siv los muab ntau lub zog ntau dua. Tapping qhov chaw ntawm cov dej kub faus rau hauv qab lub ntiaj teb saum npoo tuaj yeem muab cua sov rau cov neeg coob coob, thiab tsim kom muaj zog txaus los tsim hluav taws xob loj.
Hauv cov khoom siv hluav taws xob tsim hluav taws xob?
Nyob hauv cov khoom siv hluav taws xob tsim hluav taws xob, xws li hlau, hluav taws xob rhaub, boiler, toaster thiab lwm yam, ib qho hlau xws li Nichrome Nichrome Nichrome (tseem hu ua NiCr, nickel-chromium lossis chromium-nickel) yog ib tsev neeg ntawm cov alloys ntawm npib tsib xee, chromium, thiab feem ntau hlau (thiab tejzaum nws muaj lwm yam) feem ntau siv raws li cov hlau tsis kam, cov khoom cua sov hauv cov khoom xws li toasters thiab qhov chaw tso cua sov, hauv qee qhov
Vim li cas cov khoom siv hluav taws xob kho cua sov?
Kev kho cua sov pallets yog xav tau rau txhua cov khoom ntim ntoo siv hauv kev xa khoom thoob ntiaj teb. … Qhov no ua kom ntseeg tau tias tag nrho cov kab thiab larva yuav raug tua tawm, tom qab ntawd cov pallet tuaj yeem siv thiab rov siv dua los xa khoom thoob ntiaj teb.
Puas hluav taws xob hluav taws xob puas tsim hluav taws xob?
Coal feem ntau siv roj los tsim hluav taws xobhauv Tebchaws Meskas. Hauv cov chaw tsim hluav taws xob hluav taws xob hluav taws xob, cov hluav taws xob bituminous, subbituminous thee, lossis lignite raug hlawv. Cov cua kub uas tsim los ntawm kev sib xyaw ntawm cov thee yog siv los hloov cov dej mus rau hauv qhov chaw siab zog, uas tsav lub turbine, uas tsim hluav taws xob.
Lub tshuab hluav taws xob hluav taws xob tsim hluav taws xob li cas?
Piav seb lub twj hluav taws xob hluav taws xob tsim hluav taws xob hla lub membrane li cas. Los ntawm pum electrons hla lub membrane, sab uas cov electrons raug tshem tawm muaj qhov zoo dua, thaum sab tau txais cov hluav taws xob ntau muaj qhov tsis zoo.
