1、随着使用时间的增长，它的密封性会降低，这会导致其内部气体与外界大气相通，从而失去了隔热保温的功能。
1. With the increase of service time, its tightness will be reduced, which will cause its internal gas to communicate with the outside atmosphere, thus losing the function of thermal insulation.
2、随着中空玻璃设备密封性的降低，其抗压能力也会下降，一旦外界给予的压力过大，很容易造成它的表面层脱落，甚至会出现爆炸现象，造成人员伤亡。所以，安装前一定要清楚它的抗压强度与变形限度，采取适当的防护措施，延长它的使用寿命。
2. As the tightness of insulating glass equipment decreases, its compressive capacity will also decrease. Once the external pressure is too large, it is easy to cause its surface layer to fall off, and even explosion, causing casualties. Therefore, before installation, it is necessary to know its compressive strength and deformation limit, and take appropriate protective measures to extend its service life.

3、隔层厚度对隔热性的作用气体间隔层越大，K值越小。但当气体层的厚度达到一定程度后，K值的变化就很小了。气体在玻璃间温差的作用下就会产生一定的对流过程，从而减低了气体层增厚的作用。
3. The effect of insulation thickness on thermal insulation The larger the gas compartment, the smaller the K value. But when the thickness of the gas layer reaches a certain degree, the change of K value is very small. Under the effect of temperature difference between glasses, gas will produce certain convection process, thus reducing the effect of gas layer thickening.
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