鋁卷是鑄軋機(jī)經(jīng)過(guò)壓延，拉彎角加工后，進(jìn)行飛剪的金屬產(chǎn)品，它的表面有一層氧化膜，可以起到很好的保護(hù)卷材的作用，但有時(shí)我們會(huì)發(fā)現(xiàn)氧化膜存在顏色不均的情況。這是怎么回事呢？下面，鋁卷加工廠(chǎng)家就給大家簡(jiǎn)單介紹一下卷材表面氧化膜不均勻的原因及預(yù)防方法吧。
Aluminum coil is a metal product that is processed by casting and rolling mill after rolling and angle bending and flying shear. Its surface has a layer of oxide film, which can play a good role in protecting the coil. However, sometimes we find that the oxide film has uneven color. What's the matter? Next, the aluminum coil processing manufacturer will briefly introduce the causes and prevention methods of uneven oxide film on the surface of the coil.
1、工藝操作在工件堿性蝕刻處理不完整，原本的氧化膜部分存在污垢；堿性蝕刻后立即處理，表面仍為堿性；在轉(zhuǎn)移過(guò)程中工件接觸異物。
1. The alkaline etching treatment of the workpiece in the process operation is incomplete, and the original oxide film part has dirt; Immediately after alkaline etching, the surface is still alkaline; The workpiece contacts foreign matters during transfer.
預(yù)防方法：在生產(chǎn)過(guò)程中要嚴(yán)格保證合金鋁卷工藝的完整性，才能生產(chǎn)出更好的產(chǎn)品。
Prevention method: During the production process, the integrity of the alloy aluminum coil process must be strictly guaranteed to produce better products.

2、擺動(dòng)在插槽中工作面積過(guò)大，在氧化膜上產(chǎn)生的顏色不一致。
2. The working area of the swing in the slot is too large, and the color produced on the oxide film is inconsistent.
預(yù)防方法：氧化工件回轉(zhuǎn)起伏小，可以安靜的處置，但是當(dāng)溶液溫度過(guò)低時(shí)容易出現(xiàn)地圖狀花斑，顯得不自然。
Prevention method: The oxidation workpiece can be handled quietly because of its small fluctuation in rotation, but when the solution temperature is too low, it is easy to appear map-like spots, which appears unnatural.
3、加工包覆層被破壞的部分時(shí)，雖然表層是高質(zhì)量的鋁材料，但是內(nèi)層卻是雜鋁，二者在質(zhì)量以及性能上差別比較大，因此氧化后會(huì)產(chǎn)生“白癜風(fēng)”狀斑點(diǎn)。
3. When processing the damaged part of the coating, although the surface layer is made of high-quality aluminum material, the inner layer is made of aluminum. The quality and performance of the two are quite different, so the oxidation will produce "vitiligo" spots.
預(yù)防方法：材料嚴(yán)格把控，減少或清除雜鋁。
Prevention method: material shall be strictly controlled to reduce or remove aluminum impurities.
以上是對(duì)于鋁卷表層氧化膜不均勻的原因及預(yù)防方法的介紹，希望可以對(duì)您有所幫助。您可以來(lái)我們網(wǎng)站http://www.ssstlc.com咨詢(xún)了解更多相關(guān)的事項(xiàng)！
The above is an introduction to the causes and prevention methods of uneven oxide film on the surface of aluminum coil. I hope it can help you. You can come to our website http://www.ssstlc.com Consult for more relevant matters!