The insulating glass is composed of two or more layers of flat glass. Two or more pieces of glass are bonded and sealed with sealing strips and glass strips by high-strength and high-air-tight composite adhesive. The middle is filled with dry gas, and the frame is filled with a desiccant to ensure the dryness of the air between the glass sheets. Various original glass sheets with different properties can be selected according to requirements, such as colorless transparent float glass embossed glass, heat absorbing glass, heat reflecting glass, wired glass, tempered glass, etc. and frame (aluminum frame or glass strip, etc.). Made by cementing, welding or welding.
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Its structure is shown in the double-layer hollow glass profile. Insulating glass can be used in 3, 4, 5, 6, 8, 10, 12 mm thick sheets of original glass, and the thickness of the air layer can be spaced at 6, 9 and 12 mm.
(1) Technical requirements for green clean insulating glass, the provisions of GB11944-89 are as follows:
1 Materials a. Glass can be used flat glass, laminated glass, embossed glass, heat absorbing glass, coated heat reflective glass, tempered glass, and the like. Float glass should meet the requirements of GB11614 first-class products, superior products, laminated glass should meet the requirements of GB9962, tempered glass should meet the requirements of GB9963.
b. The sealant should meet the following requirements: The color difference between the first and second sealant components should be clearly defined; the validity period is more than half a year;
The second sealant for the hidden frame curtain wall must be a silicone sealant; the performance requirements of the insulating glass must be met.
c. Spacer box: When using the aluminum spacer frame, it must be decontaminated for anodizing.
d. The quality, specifications and performance of the desiccant must meet the requirements for the manufacture and performance of insulating glass.
2 The allowable deviation of the length and width of the oriental Huasheng insulating glass is shown in the table.
Length or width tolerance (mm)
1000-2000±2.5
>2000-2500±3
3 The allowable deviation of the thickness of the Oriental Huasheng insulating glass is shown in the table.
Glass thickness nominal thickness (mm) allowable deviation (mm)
≤6 18-25±1.5
>6>25±2
Note: The nominal thickness of the insulating glass is the sum of the thickness of the two sheets of glass and the thickness of the spacer frame.
4 Oriental Huasheng insulating glass two diagonal lines allow the deviation to see the table.
Diagonal length (mm) tolerance (mm)
≥1000-25006
5 Green Clean Insulating Glass Sealant Width: The width of the single-pass sealant layer should be calculated and determined. The minimum width is 10±2mm. The width of the double-sealed outer sealant should be calculated and determined, and the minimum width is 5-7mm.
6 Appearance: The inner surface of the oriental Huasheng insulating glass shall not have any smudges and adhesive splashing that hinder the see-through.
7 Performance requirements: Oriental Huasheng insulating glass sealing, dew point, ultraviolet radiation, climate cycle and high temperature, high humidity performance according to GB7020 inspection, must meet the requirements of the following table.
·The seal pressure is lower than the ambient pressure 10± 0.5KPa, the thickness increase must be ≥ 0.8mm, after maintaining the pressure at 2.5, the thickness growth deviation and dew point will reduce the dew point temperature to ≤-40 degrees, so that the dew point meter and test No contact on the inner surface of the sample for 3min, no condensation or frosting on the inner surface of the sample. UV irradiation for 168h. There should be no signs of fogging and contamination on the inner surface of the sample. The climate cycle and high-temperature and high-humidity gas test are performed through 320 cycles, high temperature, The test was carried out for 224 cycles and the dew point test was carried out after the test. A total of 12 samples, at least 11 non-condensation or frost-free hidden frame curtain wall selection of hollow glass, must be made of insulating glass second sealant must use silicone sealant, and structural glass assembly sealant Compatible, ie both must use a mutually compatible sealant. When a silicone sealant is used for structural assembly, it is preferred to order the same layer of silicone sealant for the insulating glass sealant.
(2) Green clean insulating glass performance The thermal conductivity of glass is 27 times that of air. As long as the insulating glass is sealed, the insulating glass is optimally insulated. The optical properties of the insulating glass are shown in Table 4-33. The optical performance comparison of the double-layer insulating glass is shown in Table 4-34. The thermal insulation properties of the insulating glass are shown in Table 4-35. The noise level for various occasions is shown in Table 4-36. The sound insulation performance of insulating glass is shown in Table 4-37.
(3) Characteristics of green clean insulating glass There is a certain cavity between the glass and the glass of the insulating glass. Therefore, it has good properties of heat preservation, heat insulation and sound insulation. For example, if various diffused light materials or dielectric materials are filled between the glass, better sound control, light control, heat insulation and the like can be obtained.
(4) Use of green clean insulating glass Insulating glass is mainly used in buildings that require heating, air conditioning, noise or condensation prevention, and the need for direct sunlight and special light. It is widely used in residential, hotel, hotel, office buildings, schools, hospitals, shops and other places where indoor air conditioning is required. It can also be used in doors and windows of trains, cars, ships, freezer cabinets, etc.
Insulating glass is mainly used for outer glass decoration. Its optical properties, thermal conductivity, and sound insulation coefficient should conform to national standards.
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