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鋼結構防腐涂料配套方案

文章發布于:2022-05-26 作者:昂威涂料 瀏覽次數:

       應按照腐蝕環境、使用工況及防腐年限設計涂層配套體系。港口機械的大氣環境分類為C3、C4、C5-I和C5-M。其曝露于大氣環境中的港口機械鋼結構外表面宜采用下邊配套。

鋼結構防腐涂料配套方案

        配套體系中所提供的涂層配套及涂裝道數為推薦值,可根據涂料的更新及使用過程中涂料的施工性能、施工環境、工藝裝備等因素作適當調整。
        涂裝前需對鋼材或結構件噴涂15~25μm車間底漆,作為工序間臨時保護涂層,但在涂裝前必需經二次噴砂去除車間底漆層,而噴涂配套表中相應底漆。
港口機械鋼結構外表面涂層配套體系(普通型)
 

腐蝕環境

涂層

涂層涂料品種

道數/最低干膜厚度/μm

C3

底漆

環氧富鋅底漆

1/40

中間漆

環氧厚漿漆

1/80

面漆

脂肪族聚氨酯面漆

2/60

總干膜厚度

180

C4

底漆

環氧富鋅底漆

1/60

中間漆

環氧厚漿漆

1/100

面漆

脂肪族聚氨酯面漆

2/60

總干膜厚度

220

C5-I

C5-M

底漆

無機富鋅底漆

1/60

中間漆

環氧云鐵中間漆

2/150

面漆

脂肪族聚氨酯面漆

2/80

總干膜厚度

290


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