臺灣博碩士論文加值系統

電鍍鋅做為零件底層防蝕處理，具有較佳的防蝕效果。同時電鍍鋅的表層若再施以化成膜處理，更可以提升其防蝕的能力。目前化成膜處理技術分為六價鉻和三價鉻，其中六價鉻具有毒性且會對環境及人體造成危害，而三價鉻不僅無毒且對人體無害，產生的廢水也較易處理，不會對環境造成負擔。所以三價鉻化成膜是未來發展的主流。三價鉻化成膜可分為藍鋅、五彩及黑鋅鍍層，本研究主要探討三價鉻化成膜中的五彩鍍層。研究內容包括反應過程的溫度、酸鹼值、腐蝕性質及鍍化完成之色澤。再透過分析實驗數據的關鍵參數來優化製程，達到成本低、品質好、高效率、產量高的效果。本研究經實驗結果得知，三價鉻五彩鍍鋅製程於P/H值為2.2、溫度值為40 ℃且濃度8 %之電鍍環境下，其電鍍成品具有較其它條件為優之品質。未來三價鉻化成膜會逐漸取代六價鉻，其無毒、廢水易處理的特性，符合現代綠色生產的環保法規及需求。

Galvanized parts as the underlying corrosion treatment have better anti-corrosion effect. Also, the anti-corrosion ability can be enhanced if the film formation process is subjected to electrical galvanized surface. Film formation process of the present technology is divided into hexavalent and trivalent chromium, hexavalent chromium is toxic and will cause harm to humans and the environment, and trivalent chromium is not only non-toxic and harmless to human body, is also easier to handle wastewater, not a burden on the environment. So trivalent chromium chemical conversion coating film is the mainstream of future development. Trivalent chromium chemical conversion coating film can be classified into blue zinc, multicolored, and black zinc coating, the present study was to investigate the trivalent chromium chemical conversion coating film in a colorful coating. The study includes the temperature of the reaction process, P/H value, and the corrosive nature of the completion of the plating color. Then through the key parameters in the analysis of experimental data to optimize the process to achieve low cost, good quality, high efficiency, and high yield results. In this study, the experimental results show that the process of trivalent chromium galvanizing in the P/H value of 2.2, the temperature value of 40 ℃ and the concentration of 8 % in plating environment, have superior quality that the others. In the future, trivalent chromium chemical conversion coating film will gradually replace hexavalent chromium.
Because of its non-toxic, easy to handle wastewater, and meet the regulations and requirements of green production line with modern environmental.

中文摘要 i
英文摘要 ii
誌謝 iv
目錄 v
圖目錄 vii
表目錄 ix
第一章 緒論 1
1.1 研究動機與目的 1
1.2 研究目的 4
1.3 論文架構 5
第二章 文獻探討 6
2.1 電鍍製程 6
2.2 鍍鋅製程 11
2.3 三價鉻電鍍製程 18
第三章 三價鉻五彩鍍鋅製程系統架構 23
3.1 系統架構 23
3.2 三價鉻五彩鍍鋅化成膜之參數設計 28
3.3 實驗量測 31
第四章 實驗結果 34
4.1 鍍層性質檢測與分析 34
4.2 實驗結果 35
4.3 實驗結果分析與比較 51
第五章 結論與未來研究方向 52
5.1 結論 52
5.2 未來研究方向 52
參考文獻 54

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