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鍍鋅鋼板在我國有很大的市場，且其消耗量也很大，其中每年都要進口相當數(shù)（重）量的各種鍍鋅鋼板。鋅的化學性質(zhì)活潑，在常溫下的空氣中，表

面生成一層薄而致密的堿式碳酸鋅膜，可阻止進一步氧化，而鋁在空氣中，可形成不能溶解的氧化物層，在其中起屏障保護功能。涂油鍍鋅板的目的

同樣是為了防止產(chǎn)品受潮而產(chǎn)生白銹。但由于防銹油極易揮發(fā)或被擦除，所以只能在使用之前發(fā)揮作用。涂油的方法有靜電涂油和輥涂油等。如果要

防止產(chǎn)品在使用期內(nèi)產(chǎn)生白銹，最好采用鈍化加涂油的辦法。彩涂基板比較適宜輕涂油處理，所涂的油能在彩涂線前處理中被清洗去除。

Galvanized steel plate has a large market in our country, and its consumption is also very large, which will import a considerable amount of (weight) amount of

various galvanized steel plate every year. The chemical properties of zinc are active, in the air at room temperature, the surface of a thin and dense layer of

alkaline zinc carbonate film, can prevent further oxidation, and aluminum in the air, can form an insoluble oxide layer, in which the barrier protection function.

The purpose of coating galvanized sheet is also to prevent the product from getting damp and produce white rust. However, because the rust oil is extremely

volatile or erased, it can only play a role before use. The methods of oil coating include electrostatic oil coating and roller oil coating. If you want to prevent the

product from producing white rust during the use period, it is best to use the passivation and oil coating method. Color coating substrate is more suitable for

light coating oil treatment, the coated oil can be cleaned and removed in the front treatment of color coating line.