Is it double? Than the average after the glass?
Laminated glass structure
Laminated glass is a safe glass production process, also known as laminated glass abroad, can be two layers together, it can be multi-layer together. Some laminated glass sun will dry for a long time later, this is because the use of wet folder method, so used in architectural glass laminated glass are generally used dry folder method, so you can avoid sandwich.
Although the laminated glass has a good sound insulation effect, but still lacks, but in the middle of the membrane composition to adjust and after a professional technical treatment can achieve a very good sound insulation effect, which is hollow glass and vacuum glass can not match the place The Of course, sandwich insulation glass due to different manufacturers of different technical content, the resulting noise insulation effect is not the same.
(Such as glass commonly known as "PVB glass"), it can be a high polymer as the main component of the KK superelastic interlayer (commonly known as the "glass"), which is the main component of PVB interlayer KK superelastic glass "). Sound insulation angle, KK hyperelastic glass sound insulation is significantly higher than ordinary PVB glass, because the PVB interlayer texture is relatively hard, not as high as the polymer film so soft and rich flexibility. And if the interlayer film in the laminated glass is very soft and flexible, it can increase the sandwich glass damping coefficient, thereby increasing the insulation of the laminated glass. Ordinary PVB glass sound insulation is only 28-34 dB, KK superelastic glass sound insulation can reach 35-40 dB or even higher.
Insulating glass:
Hollow glass is composed of two layers of glass, surrounded by high strength, high air tightness composite adhesive glass and seal, glass bar adhesive seal, the middle of 6-9mm air layer filled with dry gas, With a desiccant to ensure the dryness of the air between the glass sheets. Figure. Its characteristics, due to leave a certain cavity, and has a relatively good insulation effect, so in the northern city has been widely used. In the sound insulation performance, the high-frequency noise (such as the voice of people talking, the school tweeter, etc.) in the insulating glass has good sound insulation effect, but the effect of low frequency noise (such as bus engine noise, train noise, aircraft noise, etc.) It is not obvious that the air cavity of the insulating glass resonates with the low frequency noise in the low frequency region (Note 1), and the low frequency noise is relatively easy to enter the room through the glass. Insulating glass production sub-machine line processing and manual processing of two, pipeline processing for large areas (ranging from thousands of square meters, more than 10,000 square meters) to use, manual processing is generally used for home users. Compared with the two processing methods, the quality of the product produced by the machine assembly line is relatively stable. The quality of the handmade product will be different because of the quality and process of each manufacturer. The hollow glass with poor quality will be over half a year or After a long time the internal fog and can not wash. So please pay attention to identify!
Insulating glass With the continuous development of society, noise pollution problems are more and more serious, especially in the city of traffic noise constantly plagued the general public, here mainly to introduce some of the knowledge of soundproof glass for everyone to share!
Sound insulation glass in accordance with the different production process, can be divided into the following three categories
1, insulating glass
2, vacuum glass
3, laminated glass
