摘要
通过对工业纯铝L2进行直流电阳极氧化来考察氧化时间、氧化电压对氧化膜厚度及硬度的影响,并对经阳极氧化的试样横截面进行SEM和EDS测试分析,结果表明电解液成分H2SO4浓度为200g/L、Al2O3浓度为1g/L,直流氧化电压为10V,氧化时间为40min,温度为20±1℃的条件下,可以获得均匀、与试样基体结合紧密、膜硬度相对较高的的氧化膜。而且随着氧化时间的增加,可以得到相对较大的膜厚度,但膜硬度相对降低。
Industrial pure aluminum L2 after anodic oxide coating with D. C. is studied. The effect on thickness and hardness of anodic oxide coating by oxidation time and voltage is discussed. Besides, the result of SEM and EDS testing and analysis of the cross section of the sample coated oxide film all show that 200 g/L H2 SO4,1 g/L Al2O3 ,D. C. 12 V, 40 min oxide time , （20 ± 1 ） ℃ is the optimal condition of anodic oxide coating preparation of aluminum alloy with D. C. And in this condition, uniform, harder and tighter with the basal body of the sample can be gained. Moreover, more time, thicker film, but less hardness.
出处
《科学技术与工程》
2010年第1期227-229,233,共4页
Science Technology and Engineering
关键词
铝合金
直流电
阳极氧化膜
膜厚度
膜硬度
aluminum alloy direct current anodic oxide coating film thickness film hardness
