6063铝合金的大电流密度间歇式阳极氧化  

Anodic oxidation of 6063 aluminum alloy with intermittent high current density

作　　者：黄元盛[1] 陈焕明[1] 

机构地区：[1]江门职业技术学院材料技术系,广东江门529090

出　　处：《金属热处理》2014年第1期117-119,共3页Heat Treatment of Metals

基　　金：广东省科技计划(2012B010200047);江门市科技计划(2012)

摘　　要：采用大电流密度间歇式电流阳极氧化工艺对6063铝合金进行氧化处理，研究了阳极氧化工艺对氧化层组织、厚度和性能的影响。结果表明，在试验用阳极氧化溶液下，确定了合理的阳极氧化工艺参数为：电流密度42—53A／dm^2，通断电时间比为l：1，每次通电0．5s。采用此工艺制得的氧化层表层有微孔，而内层未见有微孔，膜／基界面致密度高，氧化层的最大厚度达75μm以上，最大硬度达735HV0．5，氧化层耐NaCl溶液腐蚀能力极好。The 6063 aluminum alloy was treated by anodic oxidation with high current density and intermittent current. The effects of anodic oxidation process on mierostructure, thickness and properties of the oxide layer were investigated. The results show that with the anodic oxidation solution used in the experiment, the proper process parameters for anodic oxidation are determined with current density of 42-53 A/din2, on-off time ratio of 1：1, and each conduction time of 0.5 s. The oxide layer prepared by the proper process parameters has micropores in the surface layer while the inner layer has no micropores, and the interface between film and substrate has high density. The maximum thickness and microhardness of the oxide layer can reach above 75 μm and 735 HVO. 5 respectively, and the oxide layer shows excellent corrosion resistance in NaC1 solution.

关 键 词：阳极氧化 铝合金 间歇式电流 

分 类 号：TG174.4[金属学及工艺—金属表面处理]