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熱鍍鋅板和電鍍鋅板在鍍層組織結(jié)構(gòu)上有根本性的不同。熱鍍鋅板純鋅鍍層與鋼帶基體之間有一層稍脆的化合物層，

純鋅鍍層結(jié)晶時(shí)大多形成鋅花，鍍層均勻無(wú)孔隙。而電鍍鋅層的鋅原子只是在鋼帶表面沉積析出，而且是靠物理作用附著在鋼帶表面，有許多孔晾，

極易因腐蝕性介質(zhì)引起點(diǎn)蝕，所以熱鍍鋅板比電鍍鋅板更耐腐蝕。熱鍍鋅和電鍍鋅板的熱處理工藝也完全不同，熱鍍鋅板一般以冷硬板為原料，

在鍍鋅線上連續(xù)進(jìn)行退火和熱鍍鋅，鋼帶在短時(shí)間內(nèi)加熱后又冷卻，所以強(qiáng)度和塑性受到一定的影響，

其沖壓性能比同樣的冷硬板經(jīng)專(zhuān)業(yè)生產(chǎn)線脫脂退火后的冷軋板差。電鍍鋅板以冷軋板為原料，基本上保證了冷軋板同樣的加工性能，

不過(guò)其復(fù)雜的工藝流程也增加了生產(chǎn)成本?？傊?，熱鍍鋅板的生產(chǎn)成本更低，應(yīng)用范圍更廣，也成為鍍鋅板市場(chǎng)的主要品種。

Hot galvanized plates and electrogalvanized plates are fundamentally different in the coating tissue structure.

There is a slightly brittle compound layer between the pure zinc galvanized plate and the steel strip substrate. Most of the pure zinc coating crystallizes,

and the coating is uniform without pores.The zinc atoms of electrogalvanized layer are only deposited on the surface of the steel band,

and are attached to the surface of the steel belt, there are many holes, easy to cause corrosion caused by corrosive media,

so the hot galvanized plate is more corrosion resistant than electrogalvanized plate.

Hot galvanized and electric galvanized plate heat treatment process is completely different, hot galvanized plate generally with cold hard plate as raw material,

on the galvanized line continuous annealing and hot galvanizing, steel belt in a short time after heating and cooling,

so the strength and plasticity is affected by a certain,

its stamping performance than the same cold hard plate after the professional production line fat annealing cold rolled plate.

Electrogalvanized plate with cold rolled plate as raw material, basically ensure the same processing performance of cold rolled plate,

but its complex process also increases the production cost.In short, the production cost of hot-dip galvanized plate is lower, with a wider range of applications,

and it has also become the main variety of galvanized plate market.