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UV光油表面起塵點 比較簡單的解決工藝——UV返工水
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2017/03/06

  任何涂裝產品,在噴漆前都要進行表面處理,只不過是基材不同,表面處理方式會有差異,塑料件注射成形后要先去毛刺,表面經過清洗劑清洗,水清洗,烘干,然后送去涂裝車間。這期間,特別要注意的是不能用手直接接觸產品表面,因為手上的汗跡、污物很難清洗干凈,所以要求注塑成形到噴涂前都要戴手套操作。

  通常UV漆在ABS上附著力較為理想,而PC材質上相對要差些,也暴露出一些棘手的問題。容易產生不良點,成品表面出現大量的塵點或油窩,這些不良品的一般都是由環境或者是工人操作不恰當所引起的,這都是不可避免的,較簡單的解決工藝則是使用UV返工水進行快速翻新。

  UV返工水應用于塑膠,金屬,木器等UV大面積噴涂表面缺陷修復涂底水,附著力優異,其作用并不是把原有的UV漆除掉,而是起承上啟下的手作用,使原來UV漆膜鉸鏈上噴涂UV,達到附著力好,可以大大提高生產良率,達到節約成本的目。

  UV返工水施工要求:

1、返噴時使用相同UV面漆;

2、不良品打磨后用白電油擦拭表面,保障其夠清潔;注意返修水的噴涂膜厚,一般用低流量,十字型噴均勻即可;

3、返噴的UV面漆,保障光澤等外觀效果的情況下,盡可能比正常噴涂漆膜薄為佳


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