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通过分析锂盐与锆盐两种无镍封孔工艺各自对铝阳极氧化膜封孔所存在的优缺点,提出了一种二步法——复合无镍封孔工艺,即第1步用锂盐对铝阳极氧化膜进行封孔,第2步再用锆盐对相同铝阳极氧化膜进行复合封孔,从而既克服了锆盐和锂盐1步法封孔工艺存在的缺点,又保留了各自的优点,使工艺的适应性得到一定改善,使铝阳极氧化膜综合封闭孔质量及重要性能得到较大提高.

In this paper,a kind of two-step method,called composite nickel-free sealing process,was proposed by analyzing the advantages and disadvantages of two nickel-free sealing process used lithium salt and zirconium salt for sealing of anodic aluminum oxide film.Using this method,anodic aluminum oxide film was firstly sealed by lithium salt,then sealed by zirconium salt.This new method not only overcomes the disadvantages of one-step sealing process which only used lithium salt or zirconium salt,but also retains the advantages of the two processes.Through using this new method,the applicability of the process was improved and the sealing quality and important performance of the anodic aluminum oxide film sealing holes was greatly raised.

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