一种镀膜玻璃生产的预加热方法及设备
阅读说明：本技术 一种镀膜玻璃生产的预加热方法及设备 (Preheating method and device for production of coated glass ) 是由 纪朋远 陈刚 王科 陈海峰 蔡敬 周志文 唐高山 陈诚 于 2020-04-29 设计创作，主要内容包括：本发明涉及镀膜玻璃技术领域,具体涉及一种镀膜玻璃生产的预加热方法及设备。该预加热方法包括如下步骤：步骤S1、玻璃基板预热：采用热风对玻璃基板表面进行吹淋,直至玻璃基板温度为40-60℃；步骤S2、镀膜液预热：将镀膜液升温至30-40℃,然后将升温后的镀膜液涂覆至步骤S1已预热的玻璃基板表面；步骤S3、后加热处理：采用热风对步骤S2涂覆有镀膜液的玻璃基材进行吹淋,使玻璃基材温度达到50-70℃,制得预加热的镀膜玻璃,备用,待固化。本发明的预加热方法操作简单,生产效率高,生产成本低,能加快湿膜状态下溶剂的挥发速率均匀性,提升膜层与玻璃基材之间的附着力,改善膜层透光率、耐候性及硬度。(The invention relates to the technical field of coated glass, in particular to a preheating method and preheating equipment for coated glass production. The preheating method comprises the following steps: step S1, preheating the glass substrate: blowing hot air to the surface of the glass substrate until the temperature of the glass substrate is 40-60 ℃; step S2, preheating the coating liquid: heating the coating liquid to 30-40 ℃, and then coating the preheated coating liquid on the surface of the glass substrate preheated in the step S1; step S3, post-heating treatment: and (4) blowing hot air to the glass substrate coated with the coating liquid in the step S2 to make the temperature of the glass substrate reach 50-70 ℃, and preparing preheated coated glass for later use and curing. The preheating method disclosed by the invention is simple to operate, high in production efficiency and low in production cost, and can accelerate the volatilization rate uniformity of the solvent in a wet film state, improve the adhesive force between the film layer and the glass substrate, and improve the light transmittance, weather resistance and hardness of the film layer.)
技术领域
本发明涉及镀膜玻璃技术领域，具体涉及一种镀膜玻璃生产的预加热方法及设备。
背景技术
目前光伏玻璃镀膜主要采用辊涂镀膜工艺，即玻璃基板清洗后，采用辊涂工艺将镀膜溶液作用在玻璃表面，然后进行固化和钢化处理。因镀膜溶液为水性或有机溶剂型液体，在辊涂过程前，受到清洗后玻璃表面存在的水汽、水膜影响，镀膜后影响膜层与玻璃之间的附着力。在辊涂过程后，会受到溶液挥发不均匀，水性溶液不易挥发，溶液易吸收空气中水分等影响，会影响层膜均匀性膜面出现斑纹缺陷，也会导致镀膜玻璃的透光率下降、耐候性能下降。
而传统的方法是在镀膜前和镀膜后采用轴流风机或风扇风吹玻璃表面，达到冷却玻璃和加速溶剂挥发的作用。普遍使用轴流风机加速溶液挥发，达到溶液流平效果，但是该方式对环境温湿度要求较高，本身不能有效精准的控制吹风的温度及水分含量，只能冷却和加速挥发溶剂。且风扇吹风不均匀，易产生涡流导致膜面产生斑纹，导致生产的产品外观及性能波动较大。