
DX53D鍍鋅板白鐵皮無花鍍鋅卷熱鍍鋅板貼膜分條切割可沖模送貨到廠
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訂貨量(噸)
¥5730.00
≥8
¥5500.00
≥50
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佛山市萬慶物資有限公司
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為了使熱鍍鋅板在運輸途中和短期存儲中不生銹,常常是進行鉻酸鹽鈍化處理。但是,這終究還是暫時的防腐措施,要想延長鍍層的耐腐蝕壽命,
最根本的方法是增加鍍層的重量(或稱鍍層的厚度)。在輥鍍法熱鍍鋅中,通過提高原板表面的粗糙度、降低鋅液中的鋁含量、提高鋅液的溫度、
選擇助長合金層生長的原板化學成分,例如采用硅鎮(zhèn)靜鋼鍍鋅等,都可以達到增厚鍍層的目的。隨著熱鍍鋅板應用范圍的不斷擴大,
需要把熱鍍鋅板涂漆和涂塑的場合逐漸增多,因而,對于這一部分熱鍍鋅板必須提高它的涂裝性能。提高熱鍍鋅板涂裝性能最經(jīng)典的方法,
是在涂著前把熱鍍鋅板進行磷化處理,實踐證明,這種磷酸鹽薄膜對涂漆和涂塑料來說,均是良好的底層。
Chromate is often blunt to prevent hot galvanized plates from rust in transit and in short-term storage.However, this is a temporary corrosion measure,
to extend the corrosion resistance life of the coating, the most fundamental method is to increase the weight of the coating (or the thickness of the coating).
In roller hot galvanizing, the purpose of thickening the coating can be achieved by improving the roughness of the surface of the original plate,
reducing the aluminum content of the zinc liquid, increasing the temperature of the chemical composition of the alloy layer,
such as the use of silicon sedative steel galvanizing.With the continuous expansion of the application scope of hot galvanized plate,
the need to paint and plastic hot galvanized plate is gradually increased, therefore, for this part of hot galvanized plate must improve its coating performance.
The most classic way to improve the coating performance of hot galvanized plate is to phosphate the hot galvanized plate before coating.
Practice has proved that this phosphate film is a good bottom layer for paint and plastic coating.

