Copper Aluminium Bonding Heatsink txheej txheem

Tam sim no, cov khoom siv hluav taws xob ntau tshaj plaws yog tooj liab thiab aluminium alloys. Aluminium alloy yog ib qho yooj yim rau txheej txheem thiab tus nqi qis, yog li nws kuj yog cov khoom siv tshaj plaws. Nyob rau hauv sib piv, tooj liab muaj zoo thermal conductivity tshaj aluminium alloy, tab sis lub tshav kub dissipation tus nqi yog qeeb dua aluminium alloy.

Xav txog qhov tsis zoo ntawm tooj liab thiab txhuas, qee qhov heatsinks yog ua los ntawm tooj liab thiab txhuas. Cov dab dej kub no feem ntau siv tooj liab, thaum lub dab dej kub tseem siv aluminium alloy. Ntxiv rau lub hauv paus tooj liab, kuj tseem muaj txoj hauv kev xws li tooj liab kem rau lub dab dej kub, uas kuj yog tib txoj cai. Nrog cov thermal conductivity siab, lub hauv qab tooj liab tuaj yeem nqus cov cua sov tawm los ntawm CPU lossis lwm qhov chaw tshav kub; Aluminium fins tuaj yeem ua rau cov duab zoo tshaj plaws rau cov cua sov dissipation nrog cov txheej txheem nyuaj, thiab muab qhov chaw khaws cua kub loj thiab tso tawm sai.

Kev sib xyaw ntawm ob lub hlau yog qhov nyuaj, thiab kev sib raug zoo ntawm tooj liab thiab txhuas tsis zoo. Yog tias qhov kev kho mob sib txuas tsis zoo, nws yuav ua rau muaj kev cuam tshuam loj thermal kuj. Feem ntau cov txheej txheem tooj liab aluminium bonding muaj xws li:

Soldering

Soldering yog cov txheej txheem vuam uas siv cov khoom siv hlau nrog lub ntsiab lus melting qis dua qhov taw tes ntawm lub hauv paus hlau raws li lub hauv paus hlau, wetts lub hauv paus hlau nrog kua solder ntawm qhov kub thiab txias qis dua lub melting point ntawm lub hauv paus hlau tab sis siab tshaj qhov. melting point ntawm lub solder, nyob rau hauv lub sib koom sib txawv, thiab ces condenses los tsim ib tug ruaj khov interface.

Ib txheej oxide ruaj khov heev (Al2O3) yuav raug tsim los ntawm cov txhuas saum npoo hauv huab cua, uas ua rau cov tooj liab aluminium soldering nyuaj, uas yog qhov loj tshaj plaws cuam tshuam cov txheej txheem soldering. Nws yuav tsum tau muab tshem tawm los yog chemically tshem tawm thiab plated nrog ib txheej ntawm npib tsib xee los yog lwm yam yooj yim welded hlau kom tooj liab thiab txhuas tau welded ua ke smoothly.

Ntsia Hlau Locking:

Screw locking yog kev sib xyaw ntawm cov ntawv nyias tooj liab thiab txhuas hauv qab ntawm cov ntsia hlau. Lub hom phiaj tseem ceeb ntawm qhov no yog txhawm rau ua kom muaj peev xwm nqus tau cov cua sov sai sai ntawm lub heatsink thiab ncua lub neej voj voog ntawm qee qhov paub tab ntshiab txhuas radiators. Tom qab qhov kev sim, nws pom tau tias cov khoom siv hluav taws xob ua tau zoo yog siv nruab nrab ntawm lub hauv qab ntawm aluminium kub dab dej thiab cov tooj liab thaiv. Tom qab raug nias nrog lub zog ntawm 80kgf, nws raug kaw nrog screws. Lub tshav kub dissipation nyhuv yog sib npaug rau cov tooj liab aluminium vuam, thiab qhov kev xav tau ntawm kev txhim kho ntawm cov cua sov dissipation efficiency kuj ua tiav.

Txoj kev no yooj yim dua li soldering, nrog kev ruaj khov zoo, txheej txheem yooj yim thiab tus nqi qis dua. Txawm li cas los xij, nws tsuas yog siv los ua kev txhim kho, kev txhim kho kev ua haujlwm tsis pom tseeb. Txawm hais tias tau ntim nrog cov cua sov dissipation paste, kev sib cuag tsis tiav ntawm daim ntawv tooj liab thiab txhuas hauv qab tseem yog qhov teeb meem loj tshaj plaws rau kev hloov hluav taws xob.

Plug tooj liab:

Muaj ob txoj hauv kev los txuas tooj liab. Ib qho yog txhawm rau kos tooj liab rau hauv aluminium puag phaj, uas yog ib qho ntawm cov heatsink tsim los ntawm txhuas extrusion txheej txheem. Vim qhov txwv thickness ntawm hauv qab ntawm aluminium heatsink, lub ntim ntawm embedded tooj liab kuj txwv. Lub hom phiaj tseem ceeb ntawm kev ntxiv cov ntawv tooj liab yog txhawm rau ntxiv dag zog rau cov thermal conductivity ntawm lub heatsink, thiab kev sib cuag nrog aluminium radiator kuj tseem txwv. Yog li ntawd, nyob rau hauv feem ntau, cov nyhuv ntawm no tooj liab aluminium heatsink tsis zoo npaum li cas ntawm cov txhuas dab dej.

Lwm qhov yog los ntxig cov kab tooj liab rau hauv aluminium radiators nrog radial fins.Txawm li cas los xij, peb yuav tsum tau xyuam xim rau kev tswj kom zoo ntawm txoj kab uas hla loj thiab nto roughness ntawm cov tooj liab kem thiab puag ncig lub qhov, uas yuav muaj qee yam cuam tshuam rau nws cov cua sov dissipation nyhuv.

Crimped Fin:

Crimped fin technology txhim kho cov tsoos tooj liab txhuas ua ke thev naus laus zis. Ua ntej, machining qhov zawj ntawm lub hauv paus tooj liab, thiab tom qab ntawd cov ntawv txhuas tau muab tso rau. Cov ntawv txhuas tau muab tso rau hauv lub hauv paus tooj liab los ntawm kev siv ntau tshaj 60 tonssiab. Tsis muaj qhov nruab nrab ntawm txhuas thiab tooj liab. Los ntawm qhov pom ntawm microscopic, cov atoms ntawm txhuas thiab tooj liab txuas nrog rau ib leeg rau qee qhov, kom zam kom tsis txhob muaj qhov tsis zoo ntawm kev cuam tshuam thermal kuj tshwm sim los ntawm cov tsoos tooj liab txhuas ua ke thiab txhim kho lub peev xwm hloov hluav taws xob ntawm cov khoom. ,

Peb tuaj yeem tsim cov tooj liab ntxig aluminium puag, tooj liab ntxig tooj liab puag thiab lwm cov txheej txheem khoom kom tau raws li qhov xav tau ntawm cov cua sov sib txawv. Cov cuab yeej siv no txuas ntxiv lub neej kev pab cuam ntawm qee qhov tooj liab aluminium bonding thev naus laus zis.

Kuj tseem muaj qee qhov kev sib txuas ntawm tooj liab aluminium, tab sis cov txheej txheem tseem ceeb yog los xyuas kom meej qhov kev sib raug zoo ntawm thermal contact nto ntawm tooj liab thiab txhuas. Txwv tsis pub, nws cov cua kub dissipation tsis zoo li ntawm tag nrho cov aluminium alloy cua sov dab dej. Cov txheej txheem tshiab xav tau kev txheeb xyuas tas li thiab txhim kho, thiab thaum kawg qhov kev xav tau tuaj yeem ua tiav. Thaum xaiv tooj liab aluminium ua ke heatsink, koj yuav tsum tsis tsuas yog tsom mus rau qhov tsos, tab sis kuj yog qhov sib piv tiag tiag, ces peb tuaj yeem yuav cov khoom zoo tooj liab aluminium ua ke heatsink.