鋁產(chǎn)品廣泛應(yīng)用于汽車、建筑等行業(yè)，提高鋁產(chǎn)品的質(zhì)量是企業(yè)生存的根本，鋁材料在空氣中非常不穩(wěn)定，容易產(chǎn)生用肉眼也難以識(shí)別的氧化膜。由于鋁加工技術(shù)的不同方法,如鑄造成型,或直接壓盤剪切的延遲,或精細(xì)機(jī)械加工和成型,或通過(guò)不同工藝熱處理后形成或焊接,表面將呈現(xiàn)不同的狀態(tài),不同程度的污垢或標(biāo)志,因此在預(yù)處理過(guò)程中必須根據(jù)實(shí)際情況選擇表面預(yù)處理過(guò)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(chǎn)廠家
　　Aluminum plate manufacturer
　　預(yù)處理過(guò)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(guò)程中形成的,有些人仍與砂夾,此時(shí)應(yīng)先加工或噴砂方法,請(qǐng)先刪除原來(lái)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(chǎn)廠家
　　Aluminum plate manufacturer
　　精密機(jī)械零件在預(yù)處理過(guò)程中需要注意的問(wèn)題:細(xì)加工件時(shí)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(jī)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(jī)械加工表面不能堿腐蝕很長(zhǎng)一段時(shí)間,結(jié)果會(huì)影響工件表面粗糙度和寬容合作,終可能成為一種浪費(fèi)。
　　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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