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鍍鋅板表面處理方法有哪些?

按后處理的形態(tài)，鍍鋅板分為鈍化、涂油、鈍化涂油、漆封、磷化或不處理等類別。

(1) 鈍化鍍鋅板。鈍化鍍鋅板是為了減少在潮濕條件下產(chǎn)生白銹，在鍍鋅以后的產(chǎn)品表面進一步涂敷一層鈍化保護膜。按鈍化膜，的種類又分為六價鉻

鈍化、三階鉻鈍化、無鉻鈍化等產(chǎn)品，一般不用于鋅鐵合金板。

(2) 涂油鍍鋅板。涂油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。

(3) 漆封鍍鋅板。漆封俗稱耐指紋產(chǎn)品，為了防止鍍鋅產(chǎn)品在加工過程中留下指紋，在鍍鋅后的產(chǎn)品表面再涂覆一層極薄的耐指紋保護膜，同時也能提

高產(chǎn)品的耐腐蝕性能和產(chǎn)品的涂裝性能。適用于家電產(chǎn)品的特殊需要。

(4) 磷化鍍鋅板。

What are the galvanized sheet surface treatment methods?

According to the form of post-treatment, galvanized plates are divided into passivation, oil coating, passivation coating, patent sealing, phosphorization or

untreated categories. Blunt galvanized plate. Passivation galvanized plate is to reduce the production of white rust in wet conditions and apply a further

passivation protective film on the surface of galvanized products. According to the passivation film, the types are divided into hexavalent chromium passivation,

third order chromium passivation, no chromium passivation and other products, generally not used in zinc ferroalloy plate. Oil coated zinc plate. The purpose of

oil is also to prevent damp products and 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 treatment before the color coating line. Paint sealed galvanized plate. Patent seal is commonly known as fingerprint resistant products. In order to prevent galvanized products from leaving fingerprints in the processing process, the surface of galvanized products is coated with a very thin fingerprint resistant

protective film, which can also improve the corrosion resistance of the product and the coating performance of the product. Suitable for the special needs of

home appliances products.

(4) Phosphate galvanized plate.