Dab tsi yog qhov kev sib raug zoo ntawm thermal conductivity thiab ntub nqi xauj tsev ntawm cov khoom siv rwb thaiv tsev?

Cov ntsiab lus ntawm thermal conductivity: Nws feem ntau yog sawv cev los ntawm tus cwj pwm "λ", thiab chav tsev yog: Watt / meter · degree (W / (m·K), qhov twg K tuaj yeem hloov tau los ntawm ℃. Thermal conductivity (tseem hu ua thermal conductivity lossis thermal conductivity) yog ib qho kev ntsuas ntawm thermal conductivity ntawm cov khoom siv. 1 degree ntawm ob sab, hloov cov cua sov los ntawm thaj tsam ntawm 1 square meter hauv 1 thib ob). Kev ua ntawm ib chav tsev gradient Cov khoom sib txawv muaj qhov sib txawv thermal conductivity raws li cov ntaub ntawv rwb thaiv tsev, qhov siab dua thermal conductivity, qhov ua tau zoo ntawm rwb thaiv tsev feem ntau hais, cov thermal conductivity ntawm cov khoom yog ntau dua li cov kua roj.

Tus nqi xauj tsev ntub dej µ yog qhov ntsuas uas ua rau cov khoom muaj peev xwm tiv thaiv dej vapor nkag mus thiab yog qhov tsis muaj qhov ntau. Chav tsev yog m, uas txhais tau hais tias nws yog sib npaug rau cov dej vapor permeability ntawm huab cua ntawm m. Nws piav qhia txog kev ua haujlwm ntawm cov khoom siv, tsis yog kev ua haujlwm ntawm cov khoom lossis cov qauv.

Rau cov ntaub ntawv rwb thaiv tsev nrog tib lub thermal conductivity K tab sis sib txawv µ, qhov siab dua µ tus nqi, qhov nyuaj dua rau cov dej vapor nkag mus rau hauv cov khoom, yog li thermal conductivity nce qeeb dua, thiab ntev dua nws yuav tsum ncav cuag qhov tsis ua haujlwm rwb thaiv tsev, thiab lub neej ua haujlwm ntev dua.
Thaum tus nqi µ qis dua, cov thermal conductivity nce mus txog qhov tsis ua hauj lwm tus nqi hauv lub sij hawm luv dua vim qhov nkag mus sai ntawm cov dej vapor. Yog li ntawd, tsuas yog ib tug tuab tsim thickness yuav ua tau tib yam kev pab cuam lub neej raws li high µ cov ntaub ntawv nqi.
Cov khoom lag luam Jinfulai siv cov khoom siv ntub dej ntub dej kom ntseeg tau tias cov thermal conductivity ruaj khov, yog li cov thinner thawj thickness tuaj yeem ua kom muaj kev pab cuam lub neej.

Dab tsi yog qhov kev sib raug zoo ntawm thermal conductivity thiab ntub nqi xauj tsev ntawm cov khoom siv rwb thaiv tsev?

Cov ntsiab lus ntawm thermal conductivity: Nws feem ntau yog sawv cev los ntawm tus cwj pwm "λ", thiab chav tsev yog: Watt / meter · degree (W / (m·K), qhov twg K tuaj yeem hloov tau los ntawm ℃. Thermal conductivity (tseem hu ua thermal conductivity lossis thermal conductivity) yog ib qho kev ntsuas ntawm thermal conductivity ntawm cov khoom siv. 1 degree ntawm ob sab, hloov cov cua sov los ntawm thaj tsam ntawm 1 square meter hauv 1 thib ob). Kev ua ntawm ib chav tsev gradient Cov khoom sib txawv muaj qhov sib txawv thermal conductivity raws li cov ntaub ntawv rwb thaiv tsev, qhov siab dua thermal conductivity, qhov ua tau zoo ntawm rwb thaiv tsev feem ntau hais, cov thermal conductivity ntawm cov khoom yog ntau dua li cov kua roj.

Tus nqi xauj tsev ntub dej µ yog qhov ntsuas uas ua rau cov khoom muaj peev xwm tiv thaiv dej vapor nkag mus thiab yog qhov tsis muaj qhov ntau. Chav tsev yog m, uas txhais tau hais tias nws yog sib npaug rau cov dej vapor permeability ntawm huab cua ntawm m. Nws piav qhia txog kev ua haujlwm ntawm cov khoom siv, tsis yog kev ua haujlwm ntawm cov khoom lossis cov qauv.

Rau cov ntaub ntawv rwb thaiv tsev nrog tib lub thermal conductivity K tab sis sib txawv µ, qhov siab dua µ tus nqi, qhov nyuaj dua rau cov dej vapor nkag mus rau hauv cov khoom, yog li thermal conductivity nce qeeb dua, thiab ntev dua nws yuav tsum ncav cuag qhov tsis ua haujlwm rwb thaiv tsev, thiab lub neej ua haujlwm ntev dua.
Thaum tus nqi µ qis dua, cov thermal conductivity nce mus txog qhov tsis ua hauj lwm tus nqi hauv lub sij hawm luv dua vim qhov nkag mus sai ntawm cov dej vapor. Yog li ntawd, tsuas yog ib tug tuab tsim thickness yuav ua tau tib yam kev pab cuam lub neej raws li high µ cov ntaub ntawv nqi.
Kingflex cov khoom siv cov khoom siv ntub dej ntub dej kom ntseeg tau tias cov thermal conductivity ruaj khov, yog li cov thickness thawj zaug tuaj yeem ua kom muaj kev pab cuam lub neej.
Yog tias koj muaj lwm yam lus nug, thov hu rau pab pawg Kingflex.


Post lub sij hawm: Jan-19-2025