天鐵0.7*1250無(wú)花熱鍍鋅卷工業(yè)建筑鍍鋅鋼卷規(guī)格齊全可定尺平板
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鍍鋅板與鍍鋁鋅板的區(qū)別主要在于鍍層的不同,鍍鋅板的表面均勻地分布著一層鋅材料,對(duì)母材起著陽(yáng)極保護(hù)的作用,
也就是說(shuō)鋅材料的替代性腐蝕保護(hù)了母材的使用,只有當(dāng)鋅全部腐蝕完了才能傷害到里面的母材。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(lèi)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(jìn)一步涂敷一層鈍化保護(hù)膜。按鈍化膜,的種類(lèi)又分為六價(jià)鉻鈍化、三階鉻鈍化、無(wú)鉻鈍化等產(chǎn)品,一般不用于鋅鐵合金板。
The difference between galvanized plate and aluminum galvanized plate mainly lies in the difference of the coating layer.
The surface of the galvanized plate is evenly distributed with a layer of zinc material, which plays a role of anodic protection to the parent material,
that is to say, the alternative corrosion of zinc material protects the use of the parent material,
only when all the zinc corrosion can harm the parent material inside. According to the form of post-treatment, galvanized plates are divided into passivation,
oil coating, passivation oil coating, patent seal, phosphorization or untreated categories.(1) passivated galvanized plate:
passivated galvanized plate is to reduce the production of white rust under wet conditions,
after the product surface of galvanized is further coated with a layer of passivated protective film. According to the passivation film,
the type is divided into hexavalent chromium passivation, third-order chromium passivation, chromium-free passivation and other products,
generally not used in zinc ferroalloy plate.