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UV三防漆涂覆在电路板行业的应用

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UV三防漆涂覆在电路板行业的应用

UV胶在电路板涂覆中广泛应用,通过涂覆机这种自动化机器,将UV胶雾化,根据工艺特点,可以是选择性的也可以是整板的进行涂覆,然后经过炉子固化,以实现三防效果。下面为大家介绍下它的特点。

shou先:环境/安全

1.无 VOC挥发物,对环境空气无污染;   2.胶粘剂成分在环保法规中限制或禁止的比较少;   3.无溶剂,可燃性低

其次:经济性

1.固化速度快,几秒至几十秒即可完成固化,有利于自动化生产线,提高劳动生产率   2.固化后即可进行检测以及搬运,节约空间   3.室温固化,节省能源,例如生产 1g 光固化压敏胶的所需能量仅需相应水性胶粘剂的 1%,溶剂型4%。可用于不宜高温固化的材料,紫外光固化所消耗的能量与热固化树脂相比可节约能耗 90%   4.固化设备简单,仅需灯具或传送带,节约空间   5.单组分系统,无需混合,使用方便

zui后:相容性

 1.对于温度,溶剂和潮湿敏感的材料可以使用   2.控制固化,等待时间可以调整,固化程度可以调整   3.可以重复施胶多次固化   4.紫外灯可以容易地安装在已有的生产线,不需较大改动   5.原料成本高,不含低成本的溶剂和填料,胶粘剂价格高   6.紫外光对某些塑料或半透明材料穿透力较弱,固化深度有限,可固化产品的几何形状受到限制,不透光的部位及紫外光照射不到的死角不易固化   7.一般的 UV胶只能粘接透光材料, 粘接不透光材料需要配合其他技术,例如光延迟

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