Aluminium alloys rau 3D luam ntawv ntawm tshav kub exchangers

Kev nce qib hauv 3D luam ntawv thev naus laus zis tau hloov pauv txoj kev sib hloov hluav taws xob tsim khoom. Cov qauv tsim tsis yooj yim thiab dawb uas tsis tuaj yeem pom tau los ntawm kev tsim khoom ib txwm tuaj yeem pom tau yooj yim los ntawm 3D luam ntawv. Txhim kho kev sib pauv cua sov thiab txo qhov hnyav, ntim, thiab cov nqi tsim khoom yog lwm yam zoo uas 3D luam ntawv tuaj yeem muab tau. Txawm li cas los xij, cov ntaub ntawv yog lwm qhov tseem ceeb rau kev hloov pauv 3D luam ntawv.

Tsis ntev los no, ib qho kev lag luam hauv tsev aluminium alloy 3D luam ntawv cov khoom lag luam tso tawm cov khoom siv thermal conductivity aluminium alloy 3D luam ntawv rau lub khw. Cov khoom muaj npe HC 200 los qhia nws cov thermal conductivity tsis tsawg tshaj 200W / (m·K).

Lub hauv paus ntsiab lus ntawm cov hlau kub conduction, cov ntaub ntawv thiab qhov tsis xws luag ntawm 3D luam ntawv

Lub ntsiab lus ntawm cov hlau kub conduction yog tias muaj cov hluav taws xob txav tau yooj yim hauv cov hlau. Thaum ib feem ntawm cov hlau tau txais cua sov, lub zog ntawm cov hluav taws xob dawb nyob rau hauv qhov cua sov nce, lub zog txav zuj zus, thiab lawv tas li sib tsoo nrog cov hlau ions los pauv lub zog, yog li hloov cov cua sov ntawm ib feem mus rau lwm qhov. Txhawm rau cov hlau kom tau txais cov thermal conductivity ntau dua, nws yog ib qho tsim nyog yuav tsum tau ua kom cov electrons "tsis muaj kev cuam tshuam" hauv cov hlau, uas yog, yuav tsum muaj qhov tsis zoo txaus hauv cov khoom siv hlau, thiab yuav tsum muaj kev cuam tshuam tsawg dua los ntawm impurities lossis lwm theem. Qhov no ua rau muaj kev xav tau siab heev ntawm kev tswj hwm kev sib xyaw thiab kev npaj cov ntaub ntawv.

Ntawm cov ntaub ntawv aluminium alloy, qib siab thermal conductivity (tshwj xeeb tshaj yog siab dua 200) yog qhov txwv, thiab feem ntau siv yog 6063 aluminium alloy. 6063 yog AlMg series deformed aluminium alloy, lub ntsiab alloying muaj xws li Al, Mg, Cr, Cu, Si, thiab lwm yam. Nws thermal conductivity yog siab tshaj 200 W / (m K), feem ntau 210, thiab muaj ib tug yield zog tsis. tsawg dua 160MPa thiab elongation ntawm 8 feem pua ​​tom qab T6 kho cua sov. Thiab 6063 muaj cov yas zoo thiab tuaj yeem ua anodized, yog li nws yog cov khoom siv rau ntau hom radiators. Hauv lwm qib uas twb muaj lawm ntawm aluminium alloy cov ntaub ntawv, cov thermal conductivity tsis siab tshaj 200. Txij li cov ntshiab txhuas tsis muaj lwm yam alloying ntsiab, nws thermal conductivity ncav cuag 230W / (m·K).

Txawm hais tias 6063 aluminium alloy yog cov khoom siv zoo heev, nws tsis tuaj yeem siv ncaj qha rau hlau 3D luam ntawv. Cov hlau yog ib qho deformed aluminium alloy, uas yog tsim rau cov txheej txheem casting, tab sis tsis haum rau SLM xaiv laser melting 3D luam ntawv txheej txheem nrog lub siab txias. Qhov kawg tshwm sim yog tias thaum 6063 alloy hmoov luam tawm los ntawm cov txheej txheem SLM, yuav muaj qhov loj thiab me me me, thiab cov khoom siv tsis tuaj yeem siv. Tam sim no, qee cov kws tshawb fawb sim ua kom cov 6063 alloys luam tawm los ntawm kev hloov kho qhov sib xyaw lossis ntxiv nano-theem thiab tau ua tiav qee qhov txiaj ntsig, tab sis lawv tsis tau ua lag luam.

Tam sim no, AlSi10Mg cov khoom siv dav siv hauv khw. Txawm hais tias nws cov thermal conductivity tau mus txog qhov tsis qis 140W / (m·K), rau cov ntawv thov uas xav tau thermal conductivity ntau dua, AlSi10Mg tsis muaj zog.

High-kev ua tau zoo thaum tshav kub kub dissipation 3D luam ntawv txhuas alloy tau ua ib tug breakthrough

Txhawm rau tsim cov ntawv luam tawm aluminium alloy 3D luam ntawv cov ntaub ntawv nrog cov thermal conductivity thiab kev ua haujlwm siab, pab pawg hauv tsev tau siv sijhawm ntau tshaj li ib xyoos ntawm kev tshawb fawb ywj pheej thiab kev tsim kho, thiab thaum kawg tau ua tiav tiav ob puas (cov thermal conductivity ntau dua 200 W / (m) K) thiab tensile lub zog siab dua 200MPa) HC 200 siab thermal conductivity aluminium khoom tsim. Cov lus hauv qab no yog kev sib piv ntawm cov khoom siv ntawm HC200, 6063, thiab AlSi10Mg:

Nrog nws cov kev ua tau zoo heev, cov khoom siv no yog tsim rau lub teeb yuag thiab cov qauv tsim los yog qhov chaw ua haujlwm uas muaj cov kev xav tau siab rau cov cua sov dissipation thiab tshwj xeeb tshaj yog tsim nyog rau kev tsim thiab kev loj hlob ntawm cov cua sov tshiab (tshwj xeeb tshaj yog micro-channel cua sov dab). Nrog cov kev daws teeb meem tshiab, ua ke nrog cov txiaj ntsig zoo ntawm cov hlau 3D luam ntawv, peb vam tias yuav pab txhawb rau cov khoom tsim tawm ntawm cov tshuab hluav taws xob tshiab.

Yog tias koj txaus siab rau HC 200 nrog nruab nrab thiab siab thermal conductivity thiab lub zog siab, JR tau tsim cov kev pabcuam luam ntawv rau cov thermal conductivity aluminium. Peb tos ntsoov yuav koom tes nrog cov neeg siv khoom txaus siab rau kev luam ntawv siab thermal conductivity aluminium daws teeb meem.