1. Glass cleaning

清洗玻璃是中空玻璃生产的第一个环节，也是保证中空玻璃密封的重要的环节之一。如果玻璃上的油滞和汗水不能彻底清洗掉，则密封胶对玻璃的粘合力就会大大削弱，从而降低中空玻璃的密封效果。应当强调指出，我们选择干燥剂、密封胶和间隔条所考虑的各项条件，是以玻璃清洗干净前提的，而中空玻璃的密封在相当大的程度上是以玻璃清洗是否干净为转移的，玻璃的清洁是外观质量的主要衡量标准。但实践中，人们往往对清洗玻璃的重视程度不够，必须纠正。

Cleaning glass is the first step in the production of insulating glass and also one of the most important steps in ensuring the sealing of insulating glass. If the oil and sweat on the glass cannot be thoroughly cleaned, the adhesive force of the sealant on the glass will be greatly weakened, thereby reducing the sealing effect of the hollow glass. It should be emphasized that the various conditions we consider when choosing desiccants, sealants, and spacers are based on the premise of clean glass cleaning, while the sealing of insulating glass is largely dependent on whether the glass is clean. The cleanliness of glass is the main measure of appearance quality. However, in practice, people often do not attach enough importance to cleaning glass and must correct it.

2、干燥剂的选择

2. Selection of desiccants

干燥剂的作用主要有三：吸附密封在空气内的水分；吸附可挥发性有机溶剂和吸附在中空玻璃寿命期内进入空气层内的水汽。其目的是保持中空玻璃有合格的初始露点，因此，选择适当的干燥剂的条件是必须同时满足干燥剂所应具有的三个功能。如果干燥剂吸附能力差，不能有效的吸附通过扩散进入空气层的水分，就会导致水分在空气层中聚集，水分压提高，中空玻璃的露点上升，那么出现雾化的可能性极大，另外选择干燥剂时必须综合考虑它们各自的性质，干燥剂的选择与选用的何种中空玻璃胶有直接关系，必须结合起来考虑

The main functions of desiccants are: to adsorb and seal moisture in the air; Absorb volatile organic solvents and water vapor that enters the air layer during the lifespan of the insulating glass. The purpose is to maintain a qualified initial dew point for the insulating glass, therefore, the condition for selecting an appropriate desiccant must simultaneously meet the three functions that the desiccant should have. If the desiccant has poor adsorption capacity and cannot effectively adsorb the water that enters the air layer through diffusion, it will lead to the accumulation of water in the air layer, increase the water pressure, and increase the dew point of the insulating glass. Therefore, there is a great possibility of atomization. In addition, when selecting desiccants, they must comprehensively consider their respective properties. The selection of desiccants is directly related to the type of insulating glass adhesive used, and must be considered together

中空玻璃的边缘密封失败，意味窗户失去应有的功能，不但窗户的设计节能性能达不到，而且消费者也不能透过结雾的空气层看清外面，影响中空玻璃的透视度，并降低隔热效果，长时间的结雾会使玻璃的内表面发生霉变或析碱，产生白班，严重影响中空玻璃的外观质量。由此可见，选择高质量的中空玻璃密封胶是防止中空玻璃雾化的首要和关键。选用的中空玻璃密封胶应符合国家或行业标准要求，并且双道中空玻璃的第一道和第二道密封胶应相适合，不能互溶或反应，否则游客能导致玻璃表面污染，甚至老化。

The failure of the edge sealing of insulating glass means that the window has lost its proper function. Not only does the design of the window fail to achieve energy-saving performance, but consumers also cannot see the outside clearly through the fogged air layer, affecting the perspective of insulating glass and reducing the insulation effect. Long term fogging can cause mold or alkali precipitation on the inner surface of the glass, causing daytime shift and seriously affecting the appearance quality of insulating glass. From this, it can be seen that choosing high-quality insulating glass sealant is the primary and key to preventing the atomization of insulating glass. The selected insulating glass sealant should comply with national or industry standards, and the first and second sealants of the double layer insulating glass should be suitable and not miscible or reactive, otherwise tourists can cause surface pollution and even aging of the glass.

3、双道中空玻璃的涂敷-合片-涂胶

3. Coating, laminating, and gluing of double channel insulating glass

合片是制作双道中空玻璃的中间一环，和片前的丁基胶的涂敷，决定着中空玻璃的综合质量。因此，制作时应严格控制生产工艺，杜绝漏涂、断胶现象和对封口的疏忽，决不准存在漏气的隐患，把好密封的第一管，合片后涂第二道密封胶时，按生产厂家规定进行合理的配比使两组份混合充分，涂胶准确，避免欠胶和多胶现象，圆满完成双道中空玻璃制作的后一道工序。如果两道密封胶之间存在缝隙，会引起漏气，同时应注意涂抹过薄的第二道密封胶，在安装使用一段时间后，受环境温度变化、日晒急风压的作用，密封胶会形成裂纹（即使极小的裂纹存在），水气就有可能会慢慢地进入胶层内，形成雾化，失去其密封性，丧失密封作用。

The lamination is the middle ring in the production of double-layer insulating glass, and the application of butyl adhesive in front of the lamination determines the overall quality of the insulating glass. Therefore, during production, strict control should be exercised over the production process to prevent leakage, adhesive breakage, and negligence in sealing. There should be no hidden danger of air leakage. When applying the second layer of sealant after the first tube is sealed and the lamination is completed, a reasonable ratio should be made according to the manufacturer's regulations to ensure that the two components are fully mixed, the adhesive application is accurate, and the phenomenon of insufficient or excessive adhesive should be avoided. The final process of producing double layer insulating glass should be successfully completed. If there is a gap between two layers of sealant, it can cause air leakage. At the same time, attention should be paid to applying a second layer of sealant that is too thin. After installation and use for a period of time, the sealant will form cracks (even if there are very small cracks) due to changes in environmental temperature and rapid wind pressure. Water vapor may slowly enter the adhesive layer, form atomization, lose its sealing ability, and lose its sealing effect.