1st, hollow glass performance
Therefore in usual name spatial glass.According to the hollow glass place of use difference, in 1 hollow glass structure composition the hollow glass called the heat insulation is between the glass plate which is composed by two or the multi-block glass plate the useful hollow aluminum separates the gap which the strip separates.The use goal is different, the hollow glass uses raw material and the structure are also different.If in the south area, the whole year temperature is high, the illumination time is long, when in use hollow glass in, many considerations are control exterior quantity of heat to be able few to enter enter the inner rooms, when in choice hollow glass prototype, can the more consideration use coating glass.South area, in use hollowspatial glass main purpose heating and heat preservation, therefore can many considerations select the clear glass to make the hollow glass prototype.But in needs to control the noise the place, needs to use 3 or the gasification hollow glass, achieves the use the goal
The hollow glass product variety also had many development, along with economical development.Uses raw material variety also along with increase, like curtain wall with hollow glass, windows and doors with hollow glass, automobile with hollow glass, electric appliance with spatial glass, for decorative or ornamental purpos hollow glass and so on, all these products, although the use is different, use raw material is also same, but the basic composition is same namely: The glass prototype, the hollow sealant, the drying agent, separate the strip spatially.In constitution in hollow glass all raw materials, the aquaseal, the drying agent performance quality is big to the hollow glass product service life influence, considered when energy conservation question, the hollow aluminum will separate the strip and the sealant heat conduction performance quality directly affects the hollow glass side heat insulation performance, thus will affect the windows and doors the whole heat insulation performance.The hollow glass production technology passes through several dozens year development courses, its itself often is also consummating the product the heat insulation, the sound-insulated performance.From the earliest process of welding, the fusion law to the cemented aluminum strip law, the product heat insulation, the sound-insulated performance had the very big enhancement.After after 70's petroleum crises, the people discovered the aluminum strip law product and side the heat insulation essential difference, must improve the talent to enhance the hollow glass whole heat insulation performance.
In world first warm side systematic spatial glass being published, 80's initial period.This is in the solid only high SWIGGLE block glue system the spatial glass.This kind of spatial glass, the edge heat insulation performance was improved, the whole heat insulation effect is better, enable the hollow glass product market application to have the broad prospect.
2nd, the hollow glass
performance summer shines the sunlight can have the greenhouse effect, in 1 hollow glass heat insulation, the sound-insulated performance the hollow glass finest performance is the heat preservation, the heat insulation performance.When building use monolayer window.Namely shines to the glass on the sunlight besides a local reflex, one shoots the indoor temperature ascension partially.In the winter, because the glass thermal conductivity is big, then the single-layer window plays the radiation role, the hollow glass can reduce the conduction heat transfer to be able to reduce the heat transfer conductance and the radiation heat transfer.
Therefore hollow glass conduction thermal coefficient,①Reduced conduction heat transfer: Between the hollow glass two glass has a heat conductivity to be smaller than much gas the glass.Compared to single-layer glass small many.
Therefore reduced grimly through the air convection conduction quantity of heat.②Reduces the heat transfer conductance: The hollow glass is small in outdoor grim glass plate both sides temperature difference.
The glass radiation emissivity is greatly 0.82 if covers a low emissivity membrane on the glass,③Reduced radiation heat transfer: The high temperature object concerns to the low temperature glass radiation quantity of heat and the object radiation emissivity.Then may cause its radiation the thermal reduction, plays the heat preservation role.If covers the visor membrane and the low emissivity membrane separately in the hollow glass two in semblances, blocks the burning hot sunlight in the summer, prevented in the winter room internal heat quantity disappearing, achieves the warm in winter and cool in summer goal
When the gas is dry temperature drop, 2 hollow glass guard against the condensation, reduce the cold radiation and the safe performance because the spatial glass interior exists may adsorb the hydrone the drying agent.The hollow glass interior cannot produce congeals the dew phenomenon.At the same time, the hollow glass outside surface condensation also can elevate, if works as when outdoor wind speed is 5 meters/seconds, the indoor temperature 20 degrees, when the relative humidity is 60%, 5mm when the outdoor temperature is 8 degrees, starts the condensation.But in 16mm hollow glass under similar condition, outdoor temperature for - 2 degrees when only then condensations, in 27mm3 level hollow glass when outdoor temperature for - 11 degrees only then starts the condensation.Because the hollow glass heat insulation performance is good, the glass both sides temperature difference is big.Also may reduce the cold radiation the function.When the outdoor temperature is - 10 degrees, in the room in front of the single-layer glass window temperature is - 2 degrees, but in front of the hollow glass window temperature is 13 degrees.In same building frame, when the outdoor temperature for - 8 degrees, the indoor temperature is 20 degrees, the 3mm ordinary monolayer glass cold radiation region occupies in the room the space 67.4%.But uses double-decked hollow glass 9mm is 13..4%.In use spatial glass, may enhance the glass the safe performance, in the use same thickness prototype glass situation, the hollow glass wind resistant intensity of pressure is ordinary monolithic glass 1.5 times.