镀铝锌板在实际使用过程中所具备的特点非常明显，因为它经过处理之后确实具备很好的防腐蚀性能，在恶劣环境或者正常的环境中都可以放心使用。镀铝锌板分为钝化、涂油、钝化涂油、漆封、磷化或不处理等类别。下面就简单为大家介绍一下镀铝锌板的表面处理工艺分类有哪些？

The characteristics of aluminum zinc plated sheet in practical use are very obvious, because it does have good anti-corrosion performance after treatment, and can be used with confidence in harsh or normal environments. Aluminum zinc plated plates are classified into passivation, oiling, passivation oiling, paint sealing, phosphating or untreated categories. What are the classifications of surface treatment processes for aluminum zinc plated sheets?

镀铝锌板的表面处理工艺分类：

Classification of surface treatment processes for aluminum zinc plated sheets:

（1）钝化镀铝锌板。钝化的镀铝锌板是为了减少在潮湿条件下产生白锈，在镀锌以后的产品表面进一步涂敷一层钝化保护膜。按钝化膜的种类又分为六价铬钝化、三阶铬钝化、无铬钝化等产品，一般不用于锌铁合金板。

(1) Passivation of aluminum zinc plate. Passivation of aluminum zinc plate is to reduce the formation of white rust under humid conditions, and a passivation protective film is further applied to the surface of the galvanized product. According to the type of passivation film, it can be divided into hexavalent chromium passivation, third-order chromium passivation, chromium free passivation and other products, which are generally not used for zinc iron alloy plates.

（2）涂油镀铝锌板。镀铝锌板涂油的目的同样是为了防止产品受潮而产生白锈，但由于防锈油非常容易挥发或被擦除，所以只能在使用之前发挥作用。涂油的方法有静电涂油和辊涂油等，如果要防止镀铝锌板在使用期内产生白锈，建议采用钝化加涂油的办法。彩涂基板比较适宜轻涂油处理，所涂的油能在彩涂线前处理中被清洗去除。

(2) Oil coated aluminum zinc plate. The purpose of coating aluminum zinc plate with oil is also to prevent the product from getting damp and producing white rust, but due to the easy volatilization or erasure of rust proof oil, it can only be effective before use. The methods of oiling include electrostatic oiling and roller oiling. To prevent white rust from forming on aluminum zinc coated plates during their service life, it is recommended to use passivation and oiling. Color coated substrates are more suitable for light oil treatment, and the applied oil can be cleaned and removed during the pre-treatment of the color coating line.

（3）漆封镀铝锌板。漆封俗称耐指纹产品，为了防止镀铝锌板在加工过程中留下指纹，在镀锌后的产品表面再涂覆一层特别薄的耐指纹保护膜。同时也能提高镀铝锌板的耐腐蚀性能和产品的涂装性能。

(3) Paint sealed aluminum zinc plate. Lacquer sealed products, commonly known as fingerprint resistant products, are coated with a particularly thin layer of fingerprint resistant protective film on the surface of the galvanized product to prevent fingerprints from being left during the processing of aluminum zinc coated plates. At the same time, it can also improve the corrosion resistance of aluminum zinc coated plates and the coating performance of products.

（4）磷化镀铝锌板。镀铝锌板是为防止钢板表面遭受腐蚀，延长其使用寿命。在钢板表面涂以一层金属锌，这种涂锌的薄钢板称为镀铝锌板。镀锌是一种经常采用的经济而更好的防腐方法，全世界锌产量的一半左右均用于此工艺。

(4) Phosphated aluminum zinc plate. Aluminum zinc plated plate is used to prevent corrosion on the surface of steel plates and extend their service life. A thin steel plate coated with a layer of metallic zinc on its surface is called aluminum zinc coated plate. Galvanizing is a commonly used economical and better anti-corrosion method, with about half of the world's zinc production used in this process.