Abstract：Atpresent，the arbitration method for evaluating the sealing quality of anodic oxidation film in our country is chromic-phosphoric acid method. From the point of view of environmental protection，in order to achieve chromium-free，phosphoric acid method and chromic-phosphoric acid method were contrasted，and the effect of the prior nitric acid treatment on sealing quality test was studied.The results showed that the phosphoric acid method had its limitation in replacing phosphoric chromic acid method. And the test result of phosphoric acid method was in a ccordance with that of chromic-phosphoric acid method only when the sealing quality of anodic oxidation film was well.The introduce of the prior nitric acid treatment in sealing quality test can accelerate the corrosion of anodic oxidation film and increase the weightloss.
周鹏，李扬，陈颖欣，陈文. 阳极氧化膜封孔质量评定方法探讨[J]. 物理测试, 2019, 37(3): 11-13.
ZHOU Peng， LI Yang， CHEN Ying-xin， CHEN Wen. Discussion about method for testing the sealing quality of anodic oxidation film. PHYSICS EXAMINATION AND TESTING, 2019, 37(3): 11-13.
2019, Vol. 37 
