中空玻璃可降噪多少分贝？ 6mm 单片玻璃可降低噪音 20～22dB；一般中空玻璃 29～31dB；充气中空玻璃可降低 36dB。 8) 什么是露点？ 中空玻璃的露点是多少？中空玻璃的露点是指在室内外温度偏差较大时， 中空玻璃的内 部所出现的冷凝雾或水。此现象的产生大部分属外密封遭到了破坏，丧失了玻璃的气密 性。一般中空玻璃在－40°C 出现；充氩气中空玻璃可达－80°C。 9) 明框幕墙、隐框幕墙或半隐框幕墙各采用何种封胶？ 硅酮结构胶具有很高的抗紫外线老化能力；具有较强的抗张拉力；具有较高的伸长率。 聚硫胶基本不抗紫外线（长期经紫外线照射，会出现老化和龟裂，丧失中空的密封性） ； 抗张拉力、伸长率大大低于结构胶；密封性随着时间的延长，强于结构胶。所以，隐框、 半隐框玻璃必须使用硅酮结构胶。明框安装的可使用聚硫胶。 中空玻璃的双道密封有何特点？ 目前在市场中流通的中空玻璃产品，有单道密封和双道密封两种。单道密封是指玻璃的 密封只用一种外密封胶－聚硫胶或硅酮结构胶。双道密封是指第一道使用丁基密封胶， 第二道使用聚硫胶或硅酮结构胶。丁基密封胶的气密性非常强，对惰性气体和水分子的 密封能力分别是聚硫胶的 30 倍、硅酮结构胶的 60 倍。所以双道密封气密性很好，几十 年不漏气。 6) 中空玻璃可以充哪种气体？ 中空玻璃间隔层通常充干燥空气（Air）或氩气（Ar） ，特殊要求下还可充氪气（Kr）或 六氟化硫（SF6） 。

中空玻璃的性能检共 5 项，既初始露点、密封、紫外线照射、高温高湿及气候循环。下面就每项检验易出 现的问题及原因做简要分析。主要测试中空玻璃内空气是否干燥，国标规定露点等于或低于—400C 为合格。 造成初始露点不合格的原因是： ⑴使用的分子筛不合格或已经失效。如果盛装分子筛的容器密封不严，分子筛就很容易失效。这时应进 行活化处理，即在烘箱中 3000℃下加热 3h 以上。 ⑵生产车间空气湿度过大。 ⑶铝框装入分子筛后不能及时合片，时间太长分子筛吸水失效。 2、紫外线照射 此项检测主要测试中空玻璃密封胶是否含有影响视线的有机挥发物。 中空玻璃样品经 300W 紫外灯连续照射 168h 后，在 23±2℃温度下存放一周，中空玻璃内表面不应出现雾状、油状或其他污染物。 不合格的原因是： ⑴密封胶中有机挥发物含量过高。 ⑵铝条末经去污处理。 3、密封检验 此项试验用来测试中空玻璃密封胶的软硬程度，以及是否存在泄漏。样品在低于环境气压 10±0。5Kpa 的 条件下保持 2。5h ，厚度增长偏差＜15%为合格。 检测中出现问题是漏气或厚度增长偏差过大。 不合格的原因为： ⑴操作有人员不仔细，使密封胶密封不良。 ⑵密封胶混胶不匀或称量不准确，影响了密封胶的固化。 ⑶密封胶层宽度过窄。

译文：Hollow glass noise many decibels? 6mm monolithic glass can reduce noise 20 ~ 22dB; Hollow glass 29 to 31dB; the inflatable insulating glass can reduce 36dB. 8) What is the dew point? The hollow glass dew point is how much? The hollow glass dew point is the fog or water condensation in the indoor and outdoor temperature deviation is larger, the interior of hollow glass. This phenomenon is mostly outer seal has been destroyed, and the loss of the air tightness of the glass. Generally hollow glass at -40 ° C up to -80 ° C; argon filled insulating glass. 9) what sealant each exposed frame curtain wall, hidden frame curtain wall or semi-hidden frame curtain wall? The structural silicone rubber has a high resistance to UV aging; has strong tensile tension; higher elongation. Polysulfide rubber basically no resistance to ultraviolet (long-term exposure to ultraviolet light, aging and cracking occurs, the loss of a hollow sealing); tensile tensile elongation is significantly lower than the structural adhesive; tightness with time stronger than structural adhesive. Therefore, the hidden frame, semi-hidden frame glass must use the structural silicone rubber. Ming box installed using polysulfide rubber. Double sealed insulating glass What are the characteristics? Hollow glass products currently in circulation in the market, sealed single-channel and dual-channel seal two kinds. The single-channel seal glass sealed only with an outer sealant - polysulfide rubber or silicone structural adhesive. The double sealed is the first polysulfide rubber or silicone structural adhesive butyl sealant, the second. Butyl sealant is very strong, airtight sealing capacity of the inert gas and water molecules are 30 times the polysulfide rubber, the structural silicone rubber 60 times. Double sealed air tightness, well, decades airtight. 6) hollow glass can charge and what kind of gas? Hollow glass spacer layer typically charge the dry air (Air) or argon (Ar), special requirements also charge krypton (Kr) or sulfur hexafluoride (SF6).



Check the performance of the insulating glass 5, both the initial dew point, sealing, ultraviolet radiation, high temperature and humidity and climate cycles. Here's a brief analysis of each of the inspection prone to problems and reasons. The major test of hollow glass, the air is dry, the provisions of the GB dew point is equal to or less than-400C for qualified. The reason for the failed initial dew point is: (1) the use of molecular sieves unqualified or has failed. If the the the dressed container zeolites Mifengbuyan, the molecular sieve can easily lapse. At this time should be the activation treatment, i.e., in the heated oven 3000 ° C for more than 3h. ⑵ the production workshop air humidity is too big. ⑶ aluminum frame loaded molecular sieve can not be together piece too long molecular sieve absorbent failure. 2, this ultraviolet radiation detection test whether the insulating glass sealant containing volatile organic compounds affect sight. The hollow glass samples were 300W UV lamp continuous irradiation 168h storage temperature of 23 ± 2 ℃ week, hollow glass surface should not mist, oily or other pollutants. Failed because: ⑴ sealant high levels of volatile organic compounds. ⑵ the end of the aluminum bar decontaminated. 3, the hardness of the sealed test This test is used to test the insulating glass sealant, and whether there is a leak. Sample is lower than the ambient air pressure of 10 ± 0. 5Kpa under conditions to maintain 5H thickness growth deviation <15% as qualified. The detection problem is the deviation is too large leaks or thickness growth. Failed: ⑴ operating personnel are not careful, poor sealant. (2) the sealant rubber mixing unevenness or weighing is not accurate, and affect the curing of the sealant. ⑶ sealant layer width is too narrow.