1. Glass cleaning
Cleaning glass is not only a link in the production of insulating glass, but also one of the very important links to ensure the sealing of insulating glass. If the oil stains and sweat on the glass cannot be completely cleaned, the adhesion of the sealant to the glass will be greatly weakened, thus reducing the sealing effect of the insulating glass. In the current production, many manufacturers, especially small manufacturers, often do not pay enough attention to cleaning glass, resulting in a large number of unqualified products flowing into the market
2. Desiccant selection
When selecting desiccant, we need to comprehensively consider the properties of desiccant. The choice of desiccant is directly related to the type of insulating glass adhesive selected, which must be considered together. The failure of edge sealing of insulating glass means that the doors and windows lose their due functions. Not only the energy-saving performance of doors and windows can not meet the requirements, but also consumers can not see the outside through the fogged air layer, which affects the transparency of insulating glass and reduces the heat insulation effect. Fogging for a long time will cause mildew or alkali accumulation on the inner surface of the glass, resulting in white spots, which will seriously affect the appearance quality of the insulating glass. It can be seen that the selection of high-quality insulating glass sealant is the key to prevent the fogging of insulating glass. The selected insulating glass sealant should meet the requirements of national or industrial standards, and the first and second sealants of double-layer insulating glass should be suitable, which can not dissolve or react with each other. Otherwise, the glass surface may be polluted or even aged.
3. Double insulating glass coating
Lamination is the middle ring of making double-layer insulating glass. The coating of butyl adhesive before lamination determines the comprehensive quality of insulating glass. If there is a gap between the two layers of sealant, it will cause air leakage. At the same time, pay attention to applying too thin two layers of sealant. After installation and use for a period of time, the sealant will form cracks due to the changes of ambient temperature, sunlight and wind pressure. Even if it is a very small crack, the water vapor may slowly enter the adhesive layer and form fog, so that the sealant will lose its sealing effect.
In addition to the fogging phenomenon in some regular insulating glass factories due to product quality problems, some consumers unilaterally pursue low-cost products, which also makes some illegal vendors find opportunities. They use double-sided adhesive tape to directly bond the two pieces of glass, and then apply ordinary cheap glass adhesive to pretend to be insulating glass. This kind of glass not only has no sound insulation and heat insulation effect, but also fogging will occur in wet weather. In case of fogging of insulating glass, it is basically impossible to repair and can only be replaced.
The above is the detailed introduction of the insulating glass production line. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service http://www.ab789789.com