The vacuum glass has included the different characteristic function series product general designation, as soon as by this series most representative standard vacuum glass and at present applies the quite widespread spatial glass to do compares, differences and so on the two product main performance is as follows.
1. soundproofing performance: In the majority frequency bands, specially the low frequency band, the vacuum glass soundproofing performance surpasses the spatial glass, the overall sound insulation rank is higher than the spatial glass.At present newly sets up the sound-insulated vacuum glass sound insulation performance which the base company develops to achieve above 42dB.The average person ear is quite is sensitive to the absolute frequency 1000Hz to the 5000Hz sound, vacuum glass exactly in this scope effective.The noise differs 5dB, the human ear sense of hearing must differ 3 to 4 times.
2. heat insulation heat preservation performance: The vacuum glass heat transfer coefficient becomes time compared to the spatial glass to reduce, the heat preservation performance surpasses the hollow glass obviously, but thickness also becomes demultiplies slightly.At present, severely cold and the cold local energy conservation wall heat transfer coefficient request is 0.4-0.6W/(m2? K), the glass window should and the wall standard nearness.The ordinary spatial glass already could not adapt our country severely cold and the cold local construction energy conservation request, in Low-E the hollow glass is also unable to achieve the heat transfer coefficient was smaller than 1 target, only had the vacuum glass to be able to satisfy our country all area all energy conservation standard the request.
3. super compound performance: Specially is worth emphasizing, if tended to the mature hollow glass the vacuum glass and at present, the coating glass, the laminated glass, the fire protection glass, pastes glass intensive processing product unions and so on membrane glass and armored glass, compound Cheng Ge plants “the super glass”, then each kind will have the different special physical performance and the good overall performance glass windows and doors can appear in each kind of application domain.The hollow glass and the band half steel vacuum glass makes a comparison by in the Central Committee Television new address band half steel, may see the latter specifically the superiority.Under each performance close condition, the use vacuum glass may cause the K value to reduce the several fold, thickness reduces above one time.The weight reduces 1/3.Not only conserves energy considerably, the construction foundation and the steel and the aluminum alloy structure will consume the material greatly to reduce.
4. guards against the condensation rime performance: Because the vacuum glass interior does not have the gas, therefore cannot produce “in the condensation, the knot fog”, moreover the vacuum glass thermal resistance is high outside, it guards against the condensation rime performance also correspondingly to enhance, with the similar hollow glass compares, the vacuum glass is lower when the outdoor temperature only then condensation.
Condition: Room temperature 20℃, in room natural convection, outdoors wind speed 3.5m/s.The vacuum glass is the low emissivity glass at the same time.
5. vacuum glass also have following merit: Because the gap level is the entire glass material seal vacuum level, also Canada has the persistent effect getter pellet, the interior also does not have the heating element which like electronic vacuum devices and so on in teletron and light bulb must install, therefore the modern vacuum technique definitely may guarantee the vacuum glass achieves 20 year above vacuum lives; At present produces the high grade low emissivity LOW-E membrane, all is take the silver membrane as the foundation, feared very much the moisture oxidation, this kind of membrane put in the vacuum glass to find best “the sanctuary”, might guarantee its highly effective longevity;