Video: Dab tsi yog tungsten filament?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Tungsten lub teeb qhov muag teev muaj npe rau cov hlau tungsten , cov khoom siv grey uas muaj cov ntsiab lus melting siab heev. Vim tias nws cov ntsiab lus melting siab thiab nws lub zog, nws ua rau qhov zoo filament hauv qhov muag teeb. A filament yog ametal hlau uas ci thaum hluav taws xob xa mus rau hauv nws.
Tsis tas li ntawd, tungsten filament yog dab tsi?
Filaments nyob rau hauv incandescent qhov muag teev yog ua los ntawm tungsten . Thaum hluav taws xob tam sim no dhau los ntawm filament , cov filament ci ntsa iab. Nws kuj tseem yuav paub tau tias yog lub tshuab hluav taws xob tso rau hauv lub tshuab nqus tsev. Rau ua lub teeb tsim ntau lub teeb, lub filament feem ntau yog ua cov coils zoo hlau , kuj hu ua coiledcoil.
Ib sab saum toj no, qhov txawv ntawm filament thiab tungsten yog dab tsi? Halogen qhov muag teev yog cov thev naus laus zis lub teeb qhov muag teeb pom kev zoo yog tsim tawm ob qho tib si thaum a tungstenfilament tau ua kom sov txaus kom tso lub teeb lossis "incandescence." Qhov sib txawv nruab nrab ob dua hauv muaj pes tsawg leeg ntawm lub hnab ntawv iav thiab thegas hauv lub hnab ntawv.
Yog li ntawd, vim li cas tungsten siv hauv filament?
Cov hlau tungsten yog siv rau cov filaments nyob rau hauv qhov muag teev. Nws muaj lub siab melting point thiab khaws nws lub zog thaum rhaub. Cov tungsten cov tiv thaiv ua rau nws ci dawb-kub, thiab cov pa roj inert (feem ntau yog nitrogen) hauv qhov muag teev cia tungsten los ntawm oxidizing.
Vim li cas tungsten filament coiled?
Qhov kom zoo dua ntawm coiled kauj yog qhov kev hloov pauv ntawm tungsten ntsiabteeb yog ntawm tus nqi ntawm a tungsten lub tog raj kheej muaj txoj kab uas hla sib npaug ntawm qhov coiled kauj . Cov ua ke - kauj filament evaporates qeeb dua li ncaj filament ntawm thaj chaw tib qhov chaw thiab lub teeb-emitting zog.
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Dab tsi yog qhov filament hauv lub qhov muag hluav taws xob ua los ntawm?
Cov hlau no hu ua filament. Lub filament yog ib feem ntawm lub teeb teeb uas tsim lub teeb. Filaments nyob rau hauv incandescent qhov muag teev yog ua los ntawm tungsten. Txhawm rau ua kom lub teeb tsim ntau lub teeb, cov filament feem ntau yog ua los ntawm cov coils ntawm cov hlau zoo, tseem hu ua coiled coil