PCB科技 - 您對PCB工廠PCB複製板的清潔科技瞭解多少？

我們都知道, 這個 電路板 清洗科技對於 PCB複製板 的 PCB工廠. 因為有必要確保 電路板 以準確掃描和生成檔案映射, 清潔科技 電路板 也成為一項重要的“科技活動”.“新一代 電路板 介紹了清洗科技.
1 水清洗科技 PCB複製板
水淨化科技 PCB工廠 是未來清洗科技的發展方向, 需設定純水水源及排放水處理車間. 它使用水作為清洗介質, 並添加表面活性劑, 添加劑, 緩蝕劑, 螯合劑, 等. 以水為基礎形成一系列水性清洗劑. 可去除水溶劑和非極性污染物. The characteristics of the cleaning process are:
(1) Good safety, 不易燃, 非爆炸性, and basically non-toxic;
(2.) The composition of the cleaning agent has a large degree of freedom, 而且極性和非極性污染物都很容易清除, and the cleaning range is wide;
(3.) Multiple cleaning mechanisms. 水是極性溶劑. 除了溶解, 它還具有皂化作用, 乳化作用, 取代, 和分散. The use of ultrasound is much more effective than in organic solvents;
(4.) As a natural solvent, 其價格相對較低，來源廣泛.
The disadvantages of water cleaning are:
(1) In areas where water resources are scarce, 因為這種清洗方法需要大量的水資源, it is restricted by local natural conditions;
(2) Some components cannot be cleaned with water, and metal parts are easy to rust;
(3) The surface tension is large, 很難清理小間隙, and it is difficult to completely remove the residual surfactant;
(4) It is difficult to dry and consumes a lot of energy;
(5) The cost of the equipment is high, 需要廢水處理裝置, 設備占地面積大.

2. 半水清洗科技 PCB複製板
半水清洗主要使用有機溶劑和去離子水, 加上由一定量的活性劑和添加劑組成的清洗劑. 這種清洗介於溶劑清洗和水清洗之間. 這些清潔劑是有機溶劑, 易燃溶劑, 相對較高的閃點, 毒性相對較低, 使用相對安全, 但必須用水沖洗, 然後烘乾. 一些清潔劑添加5%-20%的水和少量表面活性劑, 這不僅降低了可燃性, 而且更容易沖洗. The characteristics of the semi-aqueous cleaning process are:
(1) The cleaning ability is relatively strong, 可同時去除極性和非極性污染物, and the cleaning ability is strong;
(2) Two different types of media are used for cleaning and rinsing, and pure water is generally used for rinsing;

(3) Drying is required after rinsing.
該科技的缺點是廢液和廢水的處理是一個相對複雜的問題，尚未完全解决.
3. 無清潔科技 PCB複製板
PCB工廠 焊接過程中不得使用清潔助焊劑或清潔錫膏, 焊接後直接進入下道工序，無需清洗. 無清潔科技是現時使用最多的替代科技, 尤其是移動通信產品. 使用不清潔的方法替換ODS. 現時, 國內外已開發出許多無清潔助焊劑, 比如北京京盈公司的無潔焊劑. No-clean fluxes can be roughly divided into three categories:
(1) Rosin type flux: Inert rosin solder (RMA) is used for reflow soldering, 無需清洗.
(2) Water-soluble flux: clean with water after welding.
(3) Low solid content flux: no cleaning.
無清潔科技具有簡化工藝流程的優點, 節省製造成本，減少污染. 在過去的十年裏, 無清潔焊接技術的廣泛應用, 無清潔助焊劑和無清潔錫膏是20世紀末電子行業的一大特點. 替代氟氯化碳的最終方法是實現無清潔.
4. 溶劑清洗科技 PCB複製板
溶劑清洗主要利用溶劑的溶解能力去除污染物. 使用溶劑清洗, 由於其揮發快，溶解能力强, 設備要求很簡單. 根據選擇的清洗劑, 可分為易燃清洗劑和非易燃清洗劑. The former mainly includes organic hydrocarbons and 醇類 (such as organic hydrocarbons, alcohols, 乙二醇酯, 等.), and the latter mainly includes chlorine Hydrocarbons and fluorinated hydrocarbons (such as HCFC and HFC), 等.