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TPU真空電鍍油污不良點(diǎn) TPU抗油處理水適合產(chǎn)品的處理水
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2016/05/13

TPU塑料電鍍的流水線下來之后卻發(fā)現(xiàn)有些產(chǎn)品表面效果非常好,有些表面卻出現(xiàn)油點(diǎn)成為次品。


素材在注塑成形過程中為了改善脫模不良離型變形問題,都會在模具上噴上中性或油性的脫模劑(離型劑),這樣一來在產(chǎn)品上就混有脫模劑,就算噴涂前表面清潔也不能把脫模劑清理干凈,導(dǎo)致在上UV底漆后起油窩或不上油。


真空電鍍油污解決方案

一、使用清洗劑把素材浸泡一段時(shí)間,產(chǎn)線上安排4-6名作業(yè)員,在電鍍之前先用白電油擦拭一遍。(噴出來的效果少油污的OK,重油污的則是無效果,工件表面會出現(xiàn)大量油窩等不良問題)對于重油污工件,可嘗試一下第二個方案。


二、素材表面清潔干凈噴一涂TPU抗油處理水,噴底UV,真空電鍍,面漆。(此工藝簡單,快速,節(jié)省人力物力以及時(shí)間,TPU抗油處理水能夠在遮蓋油污的同時(shí)提升附著力,無需擔(dān)心掉漆不良問題)


TPU抗油處理水膜厚薄,表干的速度快,支持濕噴濕,可加入熱固化油漆中混合使用,抗油性強(qiáng),光澤度好。

具體操作工藝:《TPU油污處理劑改善TPU底材與油漆的附著力方案


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