首钢镀锌卷小面锌花-机械制造拉伸冷板高锌层镀锌板雪花板
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¥4.87
≥6400
¥4.54
≥38000
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镀锌板表面处理方法有哪些?
按后处理的形态,镀锌板分为钝化、涂油、钝化涂油、漆封、磷化或不处理等类别。
(1) 钝化镀锌板。钝化镀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。
(2) 涂油镀锌板。涂油的目的同样是为了防止产品受潮而产生白锈。但由于防锈油极易挥发或被擦除,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。如果要防止产品在使用期内产生白锈,最好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。
(3) 漆封镀锌板。漆封俗称耐指纹产品,为了防止镀锌产品在加工过程中留下指纹,在镀锌后的产品表面再涂覆一层极薄的耐指纹保护膜,同时也能提
高产品的耐腐蚀性能和产品的涂装性能。适用于家电产品的特殊需要。
(4) 磷化镀锌板。
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.