夹胶玻璃为什么有气泡

夹胶玻璃为什么有气泡
2024-11-22 11:18:08
推荐回答(5个)
回答(1):

夹胶玻璃加工过程中出现的问题与解决方案
1、玻璃整体出现细小气泡:检查真空泵的工作情况与真空表的真空度,另外检查真空袋的密封度、气道是否阻塞;
2、玻璃中间出现气泡:气道排空引流未做到良好的处理;
3、玻璃四周出现气泡:高温加温时间过长需缩短高温保温时间;
4、玻璃四周出现雾状,严重时伴有气泡:检查玻璃的干燥度、盖布的干燥度、EVA胶片的干燥度(注意烘烤或者加长低温段保温时间);
5、玻璃整面出现均匀雾状:需要加长高温段保温时间;或胶片有质量问题(普透胶片除外)
6、玻璃中间局部出现白雾状,严重时伴有气泡:造成此问题的原因是该处玻璃或胶片潮湿或有水滴;
7、玻璃出现长条形大气泡或气泡带:钢化玻璃不平造成的,需加厚胶片,或合片时挑选吻合度好的两片玻璃
8、钢化夹胶时,应该在玻璃钢化时就要注意配对钢化,保持弯曲度一致(尽量把两片要夹胶的玻璃放在同一位置钢化,方向一定要一致;打孔、开缺、异形的玻璃尤其要注意;)
9、两片不同种类的钢化玻璃夹胶时(如8mm 5mm 、钢化白玻 钢化茶玻、普通浮法玻璃 钢化玻璃等),需选用足够厚度的胶片;
10、瓷砖夹玻璃时,需选用抛光瓷砖,且瓷砖要干燥、去蜡;

回答(2):

夹胶玻璃有气泡的原因很多,如果是湿法夹胶(俗称灌浆)有气泡,应该是操作时造成的,已经是成品且气泡在中间而且客户不接受应该只能报废,假如气泡在边部可以再次灌注来填充。如果是干式夹胶(PVC、SGP胶片)气泡在中间也只能报废,气泡在边部可以重新处理填补胶片、上弹簧夹或者包真空袋重新进高压釜回炉处理。

回答(3):

楼主说的肯定是钢化夹胶玻璃  普通玻璃我只碰到过一次是用的洛玻的8+0.38+8因为玻璃边部不平出现过 钢化玻璃因为边部平整度不好 导致PVB胶片的流动性不好(日本积水胶片有介绍)气泡排不出 排气时反应釜内温度太高  胶片急剧收缩  可能引起边部气泡

回答(4):

呵呵。天气热了很多玻璃厂都会出现气泡现象。处理方法当然也只有玻璃厂能做。加分吧,我可以教你 。存放胶片的地方温度一定要控制在18度以下。

回答(5):

如果是用EVA胶片的话有以下几种原因:
1、钢化玻璃不平整,气泡在一条直线上(解决办法:换钢化厂家或者加厚胶片)
2、真空泵不够力气,气泡分布没有规律(解决办法:换个功率更大的真空泵)
3、温度太高,气泡成朵状(解决办法:温度设置在120℃左右)

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