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表面前處理之噴砂處理

发表时间：2020-10-22 19:00

　　對于工件在被噴塗、噴鍍保護層【油漆或其它防腐物料】之前，工件表面均應進行認真的表面處理，稱之爲表面前處理。　

　　表面前處理質量好壞，影響著塗層的附著力、外觀、塗層的耐潮濕及耐腐蝕等方面，因更好的塗膜（層）都是粘附到被認真清理的表面。表面前處理工作做的不好，鏽蝕仍會在塗層下繼續蔓延，使塗層成片脫落。經過認真清理的表面和一般簡單（手工用砂紙或刷子）清理的工件，用暴曬法進行塗層比較，壽命可相差4--5倍。

表面清理的方法很多，但被接受普遍的方法是：

A.溶劑清理B.酸洗C.手動工具D.動力工具。

　　在這幾種方式中，每種方式都有各自的適用範圍，但在所有表面清理方法中，噴砂機噴砂方法是更徹底、更通用、更廣泛的方式，具體原因是：

--噴砂機噴砂比其它方式對工件表面清理的速度和徹底更佳，且環保。

--沒有其它哪種工藝方法允許你在四種公認的、普遍接受的清潔度之間進行任意選擇。

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