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鍍鋅一般指鋼板鍍鋅。主要是為防止鋼板表面遭受腐蝕延長(zhǎng)其使用壽命，在鋼板表面涂以一層金屬鋅，這種涂鋅的鋼板稱為鍍鋅板。鋅的熔點(diǎn)為

419.5℃，化學(xué)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(jìn)一步氧化。當(dāng)溫度達(dá)到225℃后，鋅劇烈氧化，

呈現(xiàn)白色的氧化鋅。鍍鋅板表面的鋅層能有效地保護(hù)鋼板不被外界氧化，不易生銹腐蝕。因其這一特性使其在汽車制造業(yè)和家電電器制造業(yè)得到廣泛

的應(yīng)用。

Galvanization generally refers to the steel plate galvanization.Mainly in order to prevent corrosion on the plate surface to extend its service life, the plate surface

is coated with a layer of metal zinc, this zinc coated plate is called galvanized plate.The melting point of zinc is 419.5℃, which is chemically lively. In room

temperature air, a thin and dense alkali zinc carbonate membrane is formed on the surface, which can prevent further oxidation.When the temperature reaches

225℃, the zinc is violently oxidized, showing a white zinc oxide.The zinc layer on the surface can effectively protect the steel plate from external oxidation,

not easy to rust and corrosion.Because of this characteristic, it is widely used in the automobile manufacturing industry and the home appliance manufacturing industry.