Common Surface Kho ntawm aluminium extrusion heatsink
Feem ntau, qhov kev tiv thaiv corrosion ntawm aluminium profile radiator tsis muaj zog heev, yog li nws yog ib qho tsim nyog los ua qhov kev kho deg los ntawm anodic oxidation los ua kom cov corrosion kuj, hnav tsis kam thiab zoo nkauj ntawm txhuas.
Cov txheej txheem tseem ceeb ntawm oxidation txheej txheem ntawm aluminium profile heatsink yog raws li nram no:
Nto pretreatment:
Ntxuav lub profile nto los ntawm cov tshuaj los yog lub cev txoj kev los nthuav tawm cov ntshiab matrix, thiaj li yuav tau ib tug tiav thiab ntom khoom oxide zaj duab xis. Daim iav los yog matte (Matt) nto kuj tuaj yeem tau los ntawm kev siv tshuab.
Anodizing:
Nyob rau hauv qee yam txheej txheem, qhov saum npoo ntawm aluminium profile yuav raug anodized los ua ib tug ntom, ntxeem tau thiab muaj zog adsorption zaj duab xis.
Lub qhov sealing:
Cov pores ntawm cov ntxeem tau oxide zaj duab xis tsim tom qab anodizing raug kaw, kom tiv thaiv kev ua qias tuaj, tiv thaiv corrosion thiab hnav tsis kam ntawm oxide zaj duab xis yog txhim kho. Cov oxide zaj duab xis yog xim tsis muaj xim thiab pob tshab. Los ntawm kev siv lub zog adsorption ntawm oxide zaj duab xis ua ntej kaw lub qhov, qee cov hlau ntsev yog adsorbed thiab tso rau hauv lub qhov zaj duab xis, uas tuaj yeem ua rau lub ntsej muag ntawm aluminium profile qhia ntau xim uas tsis yog xim ntuj (nyiaj dawb), xws li dub, bronze, golden daj thiab stainless hlau.
