Thermal conductivity ntawm cov hlau ntshiab yog ib qho tseem ceeb ntawm lub cev khoom uas piav txog lub peev xwm ntawm cov hlau ntshiab kom hloov cov cua sov hauv qhov kub thiab txias. Hauv qab no yog cov lus piav qhia ntxaws txog cov thermal conductivity ntawm cov hlau ntshiab:
1, Txhais thiab Chav
Thermal conductivity, tseem hu ua thermal conductivity, yog hais txog tus nqi ntawm tshav kub hloov mus los ntawm ib cheeb tsam ntawm 1 square meter nyob rau hauv ruaj khov thaum tshav kub kub hloov tej yam kev mob, nrog ib tug kub sib txawv ntawm 1 degree (K los yog degree) ntawm ob qhov chaw ntawm ib tug tuab 1m. , nyob rau hauv 1 teev. Nws chav tsev yog watts ib 'meter' ib degree (W / (m · K)), qhov twg K yuav hloov tau los ntawm degree .
2, Thermal conductivity ntawm cov hlau ntshiab
Cov hlau ntshiab, raws li cov khoom siv hlau, muaj cov thermal conductivity siab. Raws li cov ntaub ntawv tshaj tawm, cov thermal conductivity ntawm cov hlau ntshiab ntawm chav tsev yog kwv yees li 40 × 1.163W / m · degree, tab sis tus nqi no yuav cuam tshuam los ntawm ntau yam xws li kub, purity, microstructure, thiab lwm yam.
3, Qhov cuam tshuam ntawm qhov kub thiab txias ntawm thermal conductivity
Lub thermal conductivity ntawm cov hlau ntshiab txo qis nrog nce kub. Qhov no yog vim hais tias ntawm qhov kub thiab txias, lub atomic vibrations nyob rau hauv cov hlau ntshiab intensified, ua rau muaj zog tawg thiab cuam tshuam thaum tshav kub hloov lwm lub tsev, yog li txo thermal conductivity. Piv txwv li, ntawm 1200 degree, thermal conductivity ntawm cov hlau ntshiab yuav txo mus rau ib ncig ntawm 36W / m · degree.
4, Kev cuam tshuam ntawm purity ntawm thermal conductivity
Lub purity ntawm cov hlau ntshiab kuj muaj feem xyuam rau nws cov thermal conductivity. Feem ntau hais lus, qhov siab dua qhov purity ntawm cov hlau ntshiab, qhov siab dua nws cov thermal conductivity. Qhov no yog vim hais tias impurity ntsiab tuaj yeem tsim qhov tsis xws luag thiab cov chaw tawg paj hauv cov hlau ntshiab, cuam tshuam kev hloov ntawm tshav kub. Yog li ntawd, los ntawm kev ua kom purity ntawm cov hlau ntshiab, nws cov thermal conductivity tuaj yeem txhim kho ntxiv.
5, Daim ntawv thov thiab qhov tseem ceeb
Lub siab thermal conductivity ntawm cov hlau ntshiab ua rau nws siv dav hauv ntau qhov chaw. Piv txwv li, hauv kev lag luam fais fab, cov hlau ntshiab yog siv los tsim cov khoom siv hlau hauv cov khoom siv hluav taws xob xws li transformers thiab motors kom hloov tau cov hlau nplaum thiab cov cua sov. Tsis tas li ntawd, cov hlau ntshiab kuj tseem siv los tsim cov khoom siv hluav taws xob hloov pauv xws li cov khoom siv hluav taws xob thiab cov tshuab hluav taws xob, nrog rau cov khoom siv hluav taws xob zoo uas yuav tsum tau ua kom muaj thermal conductivity.
Hauv cov ntsiab lus, cov thermal conductivity ntawm cov hlau ntshiab yog ib qho tseem ceeb ntawm lub cev khoom uas cuam tshuam los ntawm ntau yam xws li kub thiab purity. Nkag siab txog cov thermal conductivity ntawm cov hlau ntshiab yog qhov tseem ceeb heev rau nws cov kev siv hauv ntau qhov chaw.