鋁產品廣泛應用于汽車、建筑等行業，提高鋁產品的質量是企業生存的根本，鋁材料在空氣中非常不穩定，容易產生用肉眼也難以識別的氧化膜。由于鋁加工技術的不同方法,如鑄造成型,或直接壓盤剪切的延遲,或精細機械加工和成型,或通過不同工藝熱處理后形成或焊接,表面將呈現不同的狀態,不同程度的污垢或標志,因此在預處理過程中必須根據實際情況選擇表面預處理過程的方法。
　　Aluminum products are widely used in automobile, construction and other industries. Improving the quality of aluminium products is fundamental to the survival of enterprises. Aluminum materials are very unstable in the air and easy to produce oxide films which are difficult to identify with the naked eye. Due to the different methods of aluminium processing technology, such as casting, delayed direct pressing shear, fine mechanical processing and forming, or forming or welding after heat treatment by different processes, the surface will present different states, varying degrees of dirt or marks, so surface pretreatment must be selected according to the actual situation in the pretreatment process. Process approach.
　　鋁板生產廠家
　　Aluminum plate manufacturer
　　預處理過程需要注意的是,并非所有的表面加工后,鑄件不加工表面厚氧化層鑄造過程中形成的,有些人仍與砂夾,此時應先加工或噴砂方法,請先刪除原來的氧化膜的部分,又或堿洗處理后,只有用這種方法不僅可以刪除所有未加工的部分原始氧化層,并可避免加工零件公差尺寸的變化。

　　In the pretreatment process, it should be noted that not all the surface is processed, but some castings are still sandwiched when the oxide layer on the surface is not machined. At this time, the original oxide film should be removed first, or after alkali washing. Only this method can remove all the unprocessed oxide layer. Some of the original oxide layer can avoid the change of tolerance dimension of machined parts.
　　鋁板生產廠家
　　Aluminum plate manufacturer
　　精密機械零件在預處理過程中需要注意的問題:細加工件時自然氧化膜表面的代,更容易,但脂肪體重,特別是在孔和周圍,這些工件必須由有機溶劑清洗,如果與堿性清潔油膩的重量很難刪除所有,不僅直接和精密機械加工表面不能堿腐蝕很長一段時間,結果會影響工件表面粗糙度和寬容合作,終可能成為一種浪費。
　　Precision machinery parts in the pretreatment process should pay attention to the following issues: the first generation of natural oxide film surface is easier when fine-processing parts, but fat weight, especially around holes, these parts must first be cleaned by organic solvents, if with alkaline clean greasy weight is difficult to delete all, not only directly and precisely machined tables. Surface cannot be corroded by alkali for a long time. The result will affect the surface roughness and tolerance of the workpiece, which may eventually become a waste.
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