Kev sib piv cov khoom siv thermal heatsink
Tam sim no, cov khoom siv hluav taws xob feem ntau yog aluminium alloy thiab tooj liab, ob qho tib si muaj lawv tus kheej zoo thiab qhov tsis zoo. Tooj liab muaj cov thermal conductivity zoo, tab sis tus nqi kim, kev ua haujlwm nyuaj, qhov hnyav dhau lawm (ntau cov ntshiab tooj liab radiators tshaj qhov hnyav ntawm CPU), lub peev xwm kub me me, thiab nws kuj yog ib qho yooj yim rau oxidize. Ntshiab aluminium yog mos heev rau siv ncaj qha. Tsuas yog aluminium alloy tuaj yeem muab cov hardness txaus. Aluminium alloy muaj qhov zoo ntawm tus nqi qis thiab lub teeb yuag, tab sis nws cov thermal conductivity yog qhov phem dua li tooj liab. Qee qhov heatsinks siv cov khoom siv txhuas thiab tooj liab hauv cov khoom siv heatsink kom sib npaug ntawm kev ua haujlwm thiab tus nqi.
Muaj ntau ntau yam ntawm cov khoom siv cua sov, xws li tooj liab, hlau, txhuas, hlau, thiab lwm yam. cov nqi thiab cov khoom cua kub dissipation yog txawv, thiab txhua tus muaj nws tus kheej zoo. Piv txwv li, tus nqi ntawm aluminium kub dab dej yog qhov tsawg, cov hlau kub dab dej yog qhov muaj zog, thiab thermal conductivity ntawm tooj liab kub dab dej yog qhov zoo heev. Cov khoom tshwj xeeb yuav tsum tau txiav txim siab ua ke nrog cov kev xav tau tiag tiag.
Copper aluminium composite cua sov dab dej
Qhov zoo: nws txais cov yeeb nkab tooj liab uas muaj kev tiv thaiv oxidation thiab corrosion, thiab aluminium hlau nrog zoo thermal dissipation nyhuv yog txuas rau nws. Cov dej ntws hauv cov yeeb nkab tooj liab yuav tsis ua rau corrosion, thiab cua sov tuaj yeem dhau los ntawm cov hluav taws xob zoo dua ntawm cov hlau txhuas. Qhov zoo yog corrosion kuj, loj tshav kub dissipation, ceev kub dissipation ceev, sib dua thiab zoo nkauj dua hlau.
Qhov tsis zoo: nws qhov tsis zoo yog qhov pom tseeb heev, vim tias cov thermal expansion coefficients ntawm cov khoom sib txawv txawv. Tom qab siv lub dab dej kub, yuav muaj qhov khoob lossis txawm tias xoob ntawm cov hlau, thiab qhov khoob yuav ua rau cov thermal tsis kam, uas yuav cuam tshuam rau cov cua sov thiab txo cov cua kub dissipation. Nyob rau hauv txoj kev no, lub tshav kub dissipation yuav txo xyoo los ntawm lub xyoo tom qab siv ntev, thiab looseness yuav tsis tsuas yog cuam tshuam rau cov tsos, tab sis kuj tsim suab nyob rau hauv tus txheej txheem ntawm kev siv.
