Thermal conductivity ntawm Pure Aluminium

Thermal conductivity yog ib yam khoom tseem ceeb uas qhia txog lub peev xwm ntawm cov khoom siv los hloov cov cua sov. Nyob rau hauv cov ntaub ntawv ntawm ntshiab txhuas, nws muaj ib tug zoo heev thermal conductivity piv rau ntau lwm yam hlau.

Thermal conductivity ntawm ntshiab aluminium tuaj yeem cuam tshuam los ntawm ntau yam xws li kub, qib impurity, thiab muaj cov ntsiab lus alloying. Nyob rau hauv chav tsev kub, cov thermal conductivity ntawm ntshiab txhuas feem ntau yog li ntawm 200 mus rau 220 W / mK, ua rau nws yog ib qho khoom tsim nyog rau kev siv hauv thermal tswj daim ntawv thov.

Ib qho ntawm cov laj thawj tseem ceeb raualuminium's siab thermal conductivity yog nws cov qauv siv lead ua. Cov qauv siv lead ua ntawm cov ntshiab txhuas yog cov txheej txheem zoo heev, nrog rau cov khoom sib txuam uas tso cai rau kev hloov pauv kom zoo. Tsis tas li ntawd, aluminium yog cov khoom siv hluav taws xob zoo heev vim muaj cov hluav taws xob dawb uas muaj peev xwm txav tau yooj yim thiab nrawm, ua kom yooj yim rau kev hloov hluav taws xob.

Lub thermal conductivity ntawm ntshiab txhuas tuaj yeem txhim kho ntxiv los ntawm kev sib xyaw nrog lwm cov ntsiab lus xws li tooj liab lossis magnesium. Cov ntsiab lus alloying no tuaj yeem cuam tshuam cov qauv siv lead ua ntawm txhuas, tsim kom muaj qhov tsis xws luag tuaj yeem txhim kho thermal conductivity. Piv txwv li, aluminium-tooj ​​liab alloys tuaj yeem pom cov thermal conductivity txog li 400 W / mK, ua rau lawv cov ntaub ntawv zoo tagnrho rau siv hauv cov dab dej kub thiab lwm yam kev siv thermal tswj.

Thermal conductivity ntawm ntshiab txhuas kuj tuaj yeem cuam tshuam los ntawm impurities xws li oxygen, nitrogen, thiab carbon. Cov impurities no tuaj yeem txo cov thermal conductivity ntawm txhuas los ntawm kev cuam tshuam cov qauv siv lead ua thiab cuam tshuam kev txav ntawm cov hluav taws xob dawb.

Nyob rau hauv xaus, lub siab thermal conductivity ntawm ntshiabaluminiumua rau nws yog ib qho khoom siv zoo heev rau kev siv hauv kev tswj xyuas thermal. Txawm hais tias siv los ntawm nws tus kheej los yog alloyed nrog lwm cov hlau, txhuas cov qauv siv lead ua tau zoo heev thiab ntau cov khoom siv hluav taws xob pub dawb ua kom muaj kev hloov hluav taws xob zoo, ua rau nws muaj kev xaiv zoo rau ntau yam kev siv.

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