Anodic alumina oxide (AAO) membrane prepared by anodizing of al not only has a simple process, but also contains uniform parallel pores and high pore density.
The hardened anodic oxidation coating on sewing machine components(2A12)was investigated in different sulfuric acid density solutions with special apparatus.
采用自制脉冲恒流电源，研究了缝纫机零部件（2A12）在低硫酸浓度下的脉冲恒流硬质阳极氧化工艺。
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Dependence of anode critical passivation current density on concentration of free complexing agent and agitation was discovered through the measuring of anodic polariza…