Tungsten hlau thiab nichrome hlau yog ob qho tib si siv los ua cov khoom cua sov, tab sis lawv muaj cov khoom sib txawv thiab siv rau hauv ntau daim ntawv thov. Nov yog qee qhov sib txawv tseem ceeb ntawm ob:

1. Cov khoom muaj pes tsawg leeg:
- Tungsten hlau: tungsten hlau yog tsim los ntawm tungsten, hlau paub txog nws qhov siab melting point thiab kub tsis kam. Tungsten filament feem ntau yog siv rau hauv qhov muag teeb thiab lwm yam kev siv kub.
- Nichrome hlau: Nichrome hlau yog ib qho hlau uas muaj nickel thiab chromium nrog me me ntawm lwm cov hlau xws li hlau. Qhov tseeb muaj pes tsawg leeg ntawm nichrome tuaj yeem sib txawv, tab sis nws paub txog nws qhov kev ua haujlwm siab thiab muaj peev xwm ua kom muaj cua sov thaum hluav taws xob dhau los ntawm nws.

2. Melting point thiab kub kuj:
- Tungsten xaim: tungsten muaj qhov taw tes melting siab heev, ua rau nws tsim nyog siv rau hauv cov ntawv thov uas yuav tsum tau muaj qhov kub thiab txias, xws li cov teeb incandescent thiab kub kub.
- Nichrome hlau: Nichrome muaj qhov qis qis dua piv rau tungsten, tab sis nws tseem muaj qhov kub thiab txias dua thiab tuaj yeem tiv taus qhov kub thiab txias. Nichrome hlau feem ntau yog siv rau hauv cov khoom cua sov hauv cov ntawv thov xws li toasters, plaub hau tshuab ziab khaub ncaws thiab cov tshuab ua kom sov.

3. Resistor:
- Tungsten xaim: tungsten muaj qhov ua haujlwm siab, uas ua rau nws muaj txiaj ntsig ntawm kev tsim hluav taws xob thaum hluav taws xob dhau los ntawm nws. Cov cuab yeej no ua rau nws tsim nyog rau kev siv nrog cov teeb pom kev zoo thiab lwm yam kev siv cua sov.
- Nichrome hlau: Nichrome muaj qhov ua haujlwm siab dua li cov hlau feem ntau, uas tso cai rau nws tsim kom muaj cua sov thaum siv hluav taws xob tam sim no. Cov cuab yeej no ua rau nws zoo tagnrho rau cov khoom siv cua sov siv nyob rau hauv ntau yam ntawm cov neeg siv khoom thiab kev lag luam.

Nyob rau hauv cov ntsiab lus, tungsten hlau yog siv nyob rau hauv daim ntawv thov uas tsis tshua muaj kub kub, xws li incandescent teeb thiab high-temperature furnaces, thaum nichrome hlau yog feem ntau siv nyob rau hauv cov cua kub ntsiab nyob rau hauv ib tug ntau yam ntawm cov neeg siv khoom thiab kev lag luam cov cuab yeej uas yuav tsum tau tswj thiab ua kom muaj cua sov tsim.