? 滚涂机效果不理想的分析判断_佛山市鑫铭枫机械有限公司

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滚涂机效果不理想的分析判断

发布者:滚涂机|铭枫机械   发布时间:2019-4-23 15:14:46

一、UV油漆涂层附着力差的分析:
1.基材处理不足,含水含油过多或贴纸表面有金粉等饰物;
2.喷涂中的UV漆加入稀释剂、色精或色浆过多;
3.附着底漆或者渗透底漆过厚;
4.每层漆膜固化后未砂光;
5.油漆自身问题,查看是否储存不当造成UV油漆已经一定程度固化或过期变质。
二、UV油漆涂层固化不足的分析:
1.主要与UV固化机相关,检查灯管寿命是否已不足;
2.UV灯配置功率不足,搭配不当,注意UV汞灯适于普通UV漆,UV镓灯适于UV实色漆;
3.油漆涂布量过大,容易表干但未实干; 
4.UV固化机输送速度太快,油漆未受充足照射。
三、UV油漆滚涂操作导致效果不理想的原因:
1.滚涂表面出现横纹:基材未砂光平整;胶辊损坏;逆转涂布轮的高度降得太低;输送带速度快于胶辊的转速。
2.滚涂表面出现直纹:胶辊损坏;油漆流平时间不够,输送速度比涂布轮转速快;逆转涂布轮转速低于正转涂布轮。
3.滚涂表面出现桔皮:油漆涂布量过大或粘度太大,油漆自身流平性不好,基材不平。
4.板件前端堆油:涂布量过多,基材变形,逆转涂布轮的高度降得太低,输送带速度低于辊轮转速。
5.板件后端堆油:基材变形,涂布轮的高度降太低,输送带速度高于辊轮转速。
四、淋涂UV油漆效果不理想的原因:
1.涂膜厚薄不均匀:淋涂机刀口不平行,刀口受磨损。

2.漆膜表面产生气泡:涂料流量过大;油漆泵输送管或密封圈破裂导致涂料混入空气、溶剂或水;基材砂光不平或意外砂穿。

3.漆幕断幕或破幕:涂料流量过小粘度太低,油漆泵转速不均匀或太低,过滤网杂物太多未及时清理,刀口间隙过大或过小,油漆本身特性原因。
文章由:滚涂机 taliisrael.com   佛山市鑫铭枫机械有限公司整理提供,此文观点不代表本站观点

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