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鍍鋁鋅板的表面鍍層是由55%的鋁，43.5%的鋅和少量的其它元素構(gòu)成，在微觀下鍍鋁鋅涂層表面為蜂窩結(jié)構(gòu)，由鋁構(gòu)成的“蜂巢”內(nèi)包容著鋅，

在這種情況下，鍍鋁鋅涂層雖然也起著陽極保護(hù)的作用，

但一方面由于鋅含量的減少一方面由于鋅材料由鋁包裹不易電解因此陽極保護(hù)的作用大大減少，因此一旦鍍鋁鋅板被切開，

在切斷的邊緣基本喪失被保護(hù)的情況下很快就會(huì)銹蝕，所以鍍鋁鋅板應(yīng)當(dāng)盡量少切割，一旦切割后應(yīng)用防銹漆或富鋅漆保護(hù)邊緣，

才能夠使板材的使用壽命延長。鍍鋁鋅板的表面比鍍鋅板的要漂亮，同時(shí)鍍鋁鋅板的價(jià)格要比鍍鋅板的貴。

The surface coating of galvanized sheet is made of 55% aluminum, Of 43.5% zinc and a small number of other elements,

The microscopic aluminum-plated zinc coating surface is a honeycomb structure, The "hive" made of aluminum contains zinc, under these circumstances,

Although the galvanized zinc coating also plays an anodic protection role, But on the one hand, due to the reduction of zinc content on the other hand,

because the zinc material is not easy to electrolysis by aluminum, the effect of anode protection is greatly reduced, Thus,

once the aluminum-plated galvanized plate is cut through, Soon to rust after the loss of basic protection of the cut edge,

So the galvanized aluminum plate should be cut as little as possible, Once cutting, protect rust proof paint or zinc rich paint,

Can make the service life of the plate is extended.The surface of galvanized sheet is more beautiful than galvanized sheet,

and the price of galvanized sheet is more expensive than galvanized sheet.