Hauv kev lag luam niaj hnub no, cov khoom siv rwb thaiv tsev FEF roj hmab ua npuas ncauj siv dav hauv kev siv hluav taws xob, kev tsim kho, thiab kev siv tsheb vim lawv cov thermal conductivity zoo heev thiab cov khoom rwb thaiv tsev. Txawm li cas los xij, kev ua kom ruaj khov ntawm cov ntaub ntawv no cov thermal conductivity thaum lub sijhawm tsim khoom yog qhov teeb meem tseem ceeb. Tsab xov xwm no yuav tshawb nrhiav yuav ua li cas kom ntseeg tau tias qhov ruaj khov ntawm thermal conductivity ntawm FEF roj hmab ua npuas ncauj cov khoom rwb thaiv tsev thaum lub sijhawm tsim khoom.
Ua ntej, nws yog ib qho tseem ceeb kom nkag siab txog lub tswv yim yooj yim ntawm kev ua kom sov. Kev ua kom sov yog hais txog lub peev xwm ntawm cov khoom siv los ua kom sov, feem ntau qhia tawm hauvwatts ib 'meter' ib kelvin (W/m·K)Feem ntau cov roj hmab thiab cov yas muaj cov thermal conductivity tsawg, ua rau lawv yog cov insulators zoo. Txawm li cas los xij, ntau yam tseem ceeb thaum lub sijhawm tsim khoom tuaj yeem cuam tshuam rau kev ruaj khov ntawm lawv cov thermal conductivity.
Thaum tsim cov khoom siv rwb thaiv tsev FEF roj hmab ua npuas ncauj, kev xaiv cov khoom siv raw yog qhov tseem ceeb heev. Ntau hom roj hmab thiab yas muaj cov thermal conductivity sib txawv, yog li lawv cov yam ntxwv thermal conductivity yuav tsum tau xav txog thaum xaiv cov khoom siv raw. Kev siv cov khoom siv raw zoo tuaj yeem txo qhov kev pheej hmoo ntawm kev hloov pauv thermal conductivity. Ntxiv mus, kev siv cov khoom ntxiv kuj tseem tuaj yeem cuam tshuam rau thermal conductivity ntawm cov khoom kawg. Piv txwv li, qee cov khoom sau thiab cov yas ua kom cov khoom siv thermal conductivity nce ntxiv, yog li kev xaiv ua tib zoo yog qhov yuav tsum tau ua thaum tsim cov qauv.
Qhov thib ob, kev tswj cov txheej txheem ntau lawm kuj yog ib qho tseem ceeb hauv kev ua kom muaj kev ruaj khov ntawm kev ua kom sov. Thaum lub sijhawm ua cov roj hmab thiab cov yas, kev hloov pauv ntawm cov yam ntxwv xws li kub, siab, thiab lub sijhawm yuav cuam tshuam rau kev ua kom sov ntawm cov khoom siv. Txhawm rau kom muaj kev ruaj khov ntawm kev ua kom sov, cov yam ntxwv no yuav tsum tau tswj hwm nruj me ntsis thaum lub sijhawm tsim khoom. Piv txwv li, thaum lub sijhawm vulcanization ntawm roj hmab, qhov kub siab lossis qis dhau tuaj yeem ua rau muaj kev hloov pauv ntawm kev ua kom sov. Yog li ntawd, tsim kom muaj kev ntws thiab kev saib xyuas cov txheej txheem ntau lawm yog qhov tseem ceeb.
Tsis tas li ntawd xwb, kev sib xyaw ua ke kuj yog ib qho tseem ceeb uas cuam tshuam rau kev ruaj khov ntawm cov khoom siv thermal. Thaum lub sijhawm tsim khoom, kev sib xyaw tsis sib xws ntawm cov khoom siv raw tuaj yeem ua rau muaj qhov sib txawv hauv thaj chaw ntawm cov khoom siv thermal, cuam tshuam rau kev ua tau zoo tag nrho. Yog li ntawd, kev siv cov khoom siv sib xyaw ua ke zoo thiab cov txheej txheem kom ntseeg tau tias cov khoom siv raw sib xyaw ua ke tuaj yeem txhim kho kev ruaj khov ntawm cov khoom siv thermal.
Thaum kawg, kev tshuaj xyuas zoo tsis tu ncua thiab kev ntsuam xyuas kev ua tau zoo kuj yog txoj hauv kev zoo los xyuas kom meej tias muaj kev ruaj khov ntawm kev ua haujlwm thermal. Kev kuaj xyuas kev ua haujlwm thermal tsis tu ncua thaum lub sijhawm tsim khoom tuaj yeem pab txheeb xyuas thiab kho cov teeb meem tsim khoom. Ntxiv mus, kev tsim kom muaj lub kaw lus tswj xyuas zoo kom ntseeg tau tias txhua pawg khoom ua tau raws li cov qauv kev ua haujlwm thermal kuj yog ib qho tseem ceeb los tiv thaiv kev ua haujlwm ntawm cov khoom.
Tag nrho hauv txhua qhov, kev ua kom muaj kev ruaj khov ntawm cov khoom siv thermal conductivity ntawm FEF roj hmab ua npuas ncauj rwb thaiv tsev thaum lub sijhawm tsim khoom xav tau ntau txoj hauv kev, suav nrog kev xaiv cov khoom siv raw, kev tswj cov txheej txheem ntau lawm, kev sib xyaw ua ke, thiab kev tshuaj xyuas zoo. Los ntawm kev tswj hwm thiab kev tswj hwm kev tshawb fawb thiab kev xav, kev ruaj khov ntawm cov khoom siv thermal conductivity tuaj yeem txhim kho tau zoo, yog li ua tau raws li kev thov ntawm kev ua lag luam rau cov khoom siv rwb thaiv tsev ua haujlwm siab.
Lub sijhawm tshaj tawm: Cuaj hlis-16-2025
