中空玻璃的結構：
Structure of insulating glass:
中空玻璃降低玻璃系統的傳熱系數U值，是一種非常經濟的節能手段，已經被大量應用在建筑上。中空玻璃的原理很簡單，主要是在兩層玻璃之間插入一層隔熱性能好的空氣層，起到瓶頸作用，降低整體傳熱系數。隨著玻璃技術的不斷進步，如低輻射玻璃技術，對“瓶頸”材料的要求也越來越高，而惰性氣體具有比干燥空氣更低的導熱性能，更穩定的化學結構，因此被廣泛用于高檔中空玻璃中空層材料。充惰性氣體除帶來看不到的“節能性”之外，還會帶來一些實際的作用，如降低玻璃玻璃兩側面溫差，減少玻璃表面結露幾率。氬氣就是一種惰性氣體，對人體無直接危害。 氬氣氬氣是目前工業上應用很廣的稀有氣體。它的性質十分不活潑，既不能燃燒，也不助燃。往往用氬作為保護氣，防止被空氣氧化或氮化。
Insulating glass to reduce the U value of heat transfer coefficient of glass system is a very economical energy-saving means, which has been widely used in buildings. The principle of insulating glass is very simple. It is mainly to insert an air layer with good heat insulation performance between the two layers of glass, which acts as a bottleneck and reduces the overall heat transfer coefficient. With the continuous progress of glass technology, such as low radiation glass technology, the requirements for "bottleneck" materials are becoming higher and higher, and inert gas has lower thermal conductivity and more stable chemical structure than dry air, so it is widely used in high-grade insulating glass insulating layer materials. In addition to the invisible "energy saving" of filling inert gas, it will also bring some practical effects, such as reducing the temperature difference between the two sides of the glass and reducing the probability of condensation on the glass surface. Argon is an inert gas, which has no direct harm to human body. Argon argon is a rare gas widely used in industry at present. Its nature is very inactive, and it can neither burn nor support combustion. Argon is often used as a protective gas to prevent oxidation or nitridation by air.
如何減少中空玻璃內部氬氣的流失：
How to reduce the loss of argon in insulating glass:
據國外文獻記載合格中空玻璃內部充入的氬氣每年滲漏不超過1%。這樣如果充入中空玻璃的氬氣的初始濃度為85%以上，15年后中空玻璃內部的氬氣濃度仍然在60%以上，該中空玻璃依然具有比較優良的性能。
According to foreign documents, the leakage of argon filled in the qualified insulating glass does not exceed 1% every year. In this way, if the initial concentration of argon filled into the insulating glass is more than 85%, and the concentration of argon inside the insulating glass is still more than 60% after 15 years, the insulating glass still has relatively excellent performance.
但是，很多充入的中空玻璃出廠測量中空玻璃充入氬氣的濃度已經達到了85%以上，但過了一段時間再測量發現氬氣含量下降或沒有氬氣了。造成這種狀況通常有以下幾種原因：
However, the concentration of argon filled into many insulating glasses measured at the factory has reached more than 85%, but it was found that the argon content decreased or there was no argon after a period of time. This situation is usually caused by the following reasons:
1、中空玻璃密封膠質量問題。中空玻璃是由丁基膠、結構膠雙道密封、玻璃、間隔條組成的密閉密封空間。丁基膠、結構膠起雙道密封的作用，如果丁基膠、結構膠中的某二種或其中的某一種質量不好，達不到密封標準中空玻璃的密封性能就會下降，因而導致中空玻璃內部氬氣滲漏率加大。
1. Insulating glass sealant quality problems. Insulating glass is a sealed space composed of butyl rubber, structural rubber double seal, glass and spacer strip. Butyl rubber and structural rubber play the role of double sealing. If either or both of them are of poor quality, the sealing performance of insulating glass will decline if it fails to meet the sealing standard, resulting in the increase of argon leakage rate inside the insulating glass.

2、涂膠工藝有問題。涂在間隔條上的丁基膠要保證均勻，沒有寬窄不均和斷條處。特別注意要保證涂布的丁基膠要有足夠的寬度和足夠的厚度（厚道往往容易被忽略）。結構膠是中空玻璃的二道密封，也要打膠厚薄均勻，并且要保持足夠厚度。
2. There is a problem with the gluing process. The butyl adhesive applied to the spacer strip shall be uniform without uneven width and broken strip. Special attention should be paid to ensure that the butyl adhesive coated has sufficient width and thickness (thickness is often easy to be ignored). Structural adhesive is the second seal of insulating glass, and the thickness of adhesive shall be uniform, and sufficient thickness shall be maintained.
3、間隔條框上出現了不密封點。用插角制作的間隔框四個角部用丁基膠封堵。整體折彎框的直插件連接處、充氣孔等可能出現不密封的地方也要用丁基膠封堵。
3. Unsealed points appear on the spacer box. The four corners of the spacer frame made by inserting corners are blocked with butyl rubber. Butyl rubber shall also be used to block the possible unsealed places such as the straight plug-in connection and inflation hole of the overall bending frame.
4、在中空玻璃制作過程中或剛剛做好的中空玻璃搬運（特別是大塊中空玻璃）也是容易出現漏氣的因素。
4. During the manufacturing process of insulating glass or the handling of newly made insulating glass (especially large insulating glass) is also a factor prone to air leakage.
5、LOW-E等鍍膜玻璃除膜除的不好，導致膠接面出現氣體滲漏。
5. The film removal of coated glass such as Low-E is not good, resulting in gas leakage on the bonding surface.
6、玻璃或間隔條表面不干凈或者有油污，會使膠接面出現漏氣。
6. The surface of glass or spacer is not clean or there is oil stain, which will cause air leakage on the bonding surface.