影响中空玻璃有用使用时间的直接原因是水分在中间层的汇聚速度。影响水分在中间层汇聚速度的因素较多，如材料的性能、制造工艺及控制、安装方法、环境老化等。
The direct reason affecting the useful service time of insulating glass is the convergence speed of water in the middle layer. There are many factors affecting the convergence rate of moisture in the middle layer, such as material performance, manufacturing process and control, installation method, environmental aging and so on.
水的含量越高，空气的温度也就越高。当玻璃内表面温度低于空气层内空气的露 点时，中空腔空气中的水气就会在中空玻璃中空腔内聚 集，导致露 点上升。当环境温度降低，玻璃内表面的温度低于空气层露 点时，空气层内的水气便在玻璃内表面产生结露或结霜(玻璃内表面温度高于0℃时结露，低于0℃结霜)。

The higher the water content, the higher the air temperature. When the temperature of the inner surface of the glass is lower than the dew point of the air in the air layer, the moisture in the air in the cavity will gather in the cavity of the hollow glass, resulting in the rise of the dew point. When the ambient temperature decreases and the temperature of the inner surface of the glass is lower than the dew point of the air layer, the moisture in the air layer will produce condensation or frosting on the inner surface of the glass (condensation when the temperature of the inner surface of the glass is higher than 0 ℃ and frosting below 0 ℃).

由于玻璃内表面的结露或结霜，将会严重影响中空玻璃的透 视度，并降低中空玻璃的隔热效果，同时长时间的结露会使玻璃的内表面发生霉变或返碱产生白斑，严重影响中空玻璃的使用。规定露 点温度为<-40℃中空玻璃上升，主要是由于外界的水分进入空气层而又不能被 干燥剂吸收所造成的。
The condensation or frosting on the inner surface of the glass will seriously affect the perspective of the insulating glass and reduce the heat insulation effect of the insulating glass. At the same time, the condensation for a long time will cause mildew or alkali return on the inner surface of the glass and produce white spots, which will seriously affect the use of the insulating glass. The specified dew point temperature is < - 40 ℃, and the rise of insulating glass is mainly caused by the fact that the external water enters the air layer and cannot be absorbed by the desiccant.
提高中空玻璃使用寿命，延长有用使用时间使之达到标准要求，应从材料选择、加工制造、结构设计和安装等各个环节加以控制。加工制造这一环节，选择优良的加工设备尤为重要，好的设备做好的产品。威力智能全自动中空玻璃封胶线打胶密封性好，打胶漂亮饱满，可以延长中空玻璃使用寿命

To improve the service life of insulating glass and prolong the useful service time to make it meet the standard requirements, it should be controlled from various links such as material selection, processing and manufacturing, structural design and installation. In the process of processing and manufacturing, it is particularly important to select excellent processing equipment. Good equipment makes good products. weili automatic insulating glass sealing line has good sealing performance, beautiful and full glue, which can prolong the service life of insulating glass