鋁材於添加5-磺基水楊酸之硫酸溶液中三次陽極處理後電解著色成效之研究

THE STUDY OF ELECTROLYTIC COLORING EFFECTS OF ALUMINUM SHEET AFTER THE THIRD ANODIZING IN SULFURIC ACID SOLUTION WITH THE ADDITION OF 5-SULFOSALICYLIC ACID

呂人華(Jen-Hua Lu)

指導教授 ： 施幸祥

大同大學/工程學院/化學工程學系所/碩士(2010年)

摘要

鋁材在陽極氧化處理完進行溶膜後，並且再次進行陽極處理，此種陽極處理程序在近年來逐漸被研究。本研究中探討使用5-磺基水楊酸與硫酸混酸溶液做為陽極處理電解液，並以二次、三次陽極氧化方式進行處理，電解著色使用硫酸銅溶液為電解液，研究再次陽極處理對著色膜的物性之影響，期望獲得良好物性的氧化膜，以利於進行電解著色，並尋求最佳的黑色電解著色操作條件。
實驗結果發現，鋁材經三次陽極處理後，可以得孔洞較規則排列之氧化膜，其物性在許多方面表現比前一次陽極處理佳(如：膜厚、色差、硬度等)。
在陽極處理之電流密度為2A/dm2下，氧化膜將形成較多的孔洞數量，並有著良好的著色效果，特別是三次陽極處理下，電流密度2A/dm2可獲得最低的L*與△E，分別為8.85和10.34。而電流密度3A/dm2、三次陽極處理下之著色膜，有著最高的硬度值465.93Hv，並有著較佳的抗腐蝕性。

關鍵字

陽極處理 ； 電解著色 ； 鋁

並列摘要

Anodized aluminum after film were dissolved, then, again dealing with anodization, such anodization gradually been studied in recent years. In this studies, using mixed acid (5-sulfosalicylic acid and sulfuric acid) as the anodizing electrolyte solution, and the second、the third anodization of dealing with anodizing. The electrolytic coloring using copper sulfate solution as electrolyte. The study of effect of re-anodized colored film properties, is purposes to obtain good properties of the oxide film in order to help carry out the electrolytic coloring, and find the best operating conditions of blacker film.
It was found that anodized aluminum by the third anodization obtain more regular arrangement of pores in oxide film. The properties of film, better than the previous anodization of film in many ways. (such as: thickness, color, hardness, anticorrosion etc. ).
In the anodizing current density of 2A/dm2 , the oxide film will form a large number of pores, and has a good coloring effects, especially with the third anodic current density 2A/dm2 has a minimum of L * and △ E , 8.85 and 10.34 respectively. While the colored film dealt with the current density 3A/dm2 and the third anodizing, has the highest hardness,465.93Hv, and also has a better corrosion resistance.

並列關鍵字

anodizing ； electrolytic coloring ； Aluminum

參考文獻

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