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I didn't expect the hollow glass of doors and windows to be produced like this.

  • Author:Fanyu
  • Source:www. glass. com. cn
  • Release on:2017-10-18
With the development of domestic glass processing industry and people's understanding of the outstanding performance of insulating glass, the application scope of insulating glass is expanding unceasingly, in addition to the glass curtain wall, automobile, airplane and so on, it has already begun to enter the ordinary people's home!
The application of insulating glass can improve the heat insulation and sound insulation effect of windows and doors, so that the door and window products can not only cover the wind and rain, but also have significant energy-saving effect, reduce the winter heating, summer refrigeration costs.
The application of insulating glass in the continuous expansion of the quality of insulating glass is increasingly high, how to grasp the market development opportunities, provide high-quality and reliable insulating glass has become a hollow glass manufacturers research concerns. In this paper, the basic processing process of insulating glass is briefly analyzed.
   Firstly, the types of insulating glass and the five indexes of the national standard of insulating glass are introduced.
Types of insulating glass
At present, there are two kinds of insulating glass in the domestic market
① Trough Aluminum insulating glass: This kind of insulating glass was introduced in the 80 's, relatively mature, but the processing process is more complicated.
② aluminum-type insulating glass: this kind of insulating glass starts relatively late in the domestic, but the manufacture craft is simple, therefore the application scope is broad, popularizes quickly (now glass factory produces hollow glass to this kind of more).
Five indexes in the national standard of insulating glass
① Initial dew Point
② Seal Test
③ Ultraviolet irradiation
④ high temperature and humidity
⑤ Climate Cycling test
According to the national testing standards, how to arrange production to meet the requirements of insulating glass? As the two kinds of insulating glass have many similarities in the process, they are analyzed in their common process.
Brief analysis of Process flow
   1, Glass cutting material
The original piece glass is colorless float glass or other colored glass, sunshade glass, tempered glass, laminated glass, the thickness is generally 3-12mm, afore-mentioned glass must conform to the GB11614, the superior product stipulation, after the inspection qualified can use.
Glass cutting can be done by hand or machine, but should be in accordance with the size requirements. In the process of operation, the workers should pay attention to the glass surface should not scratch, the internal quality is even, no bubbles, slag and other obvious defects.
   2. Glass cleaning and drying
Glass cleaning must use machine cleaning method, because manual cleaning can not guarantee the quality of cleaning. Before cleaning should be inspected glass without scratches, in order to ensure the bonding of sealant and glass, it is best to use deionized water. In addition to ensure water recycling, save water resources, water can be filtered to ensure long-term use.
After cleaning the glass to pass the light inspection, test the surface of the glass, water stains and other stains, if there is water droplets, stains and other stains, the machine running speed, heating temperature, air volume, brush clearance to adjust until the effect is intact. After washing the glass should be assembled into a hollow glass within 1 hours, in addition to ensure that glass and glass do not rub scratches, it is best to have semi-finished glass storage car, the glass and film separated.
   3. Assembly of aluminum-strip insulating glass
① Requirements for the environment: the temperature should be between 10-30 degrees.
② Relative Humidity requirements: this kind of insulating glass on the relative humidity requirements slightly lower, normal conditions can be. However, it should be noted that the desiccant should choose the regular manufacturers of qualified products to ensure the effective use of desiccant. After the desiccant Kaifeng preferably within 24 hours of use, because the polysulfide rubber permeability is larger, poor sealing, so the use of dual-way seal. Use butyl glue as the first Seal, play the role of blocking gas. The two-part adhesive is used as the second seal, the main function is the bonding effect, and the second is the gas-separating action. Practice has proved that the single seal of the Hollow glass life expectancy of only 5 years, while the two-way sealed hollow glass life expectancy of up to 20 years or even 40 years, therefore, the development of double sealed insulating glass is the trend.
   4. Glass-Laminated film
Aluminum-type insulating glass, after the aluminum frame and the outer part of the glass should be 5-7mm distance, used for the second sealing glue, the two-part glue should be evenly along the side of the coating to prevent bubbles, after finishing scraping the surface remnants of the glass. At this point, the completion of aluminum-strip insulating glass processing.
insulating glass
   5, the placement of insulating glass
The placement of insulating glass will also affect the final quality of insulating glass, whether in the production or in the transport or in the site storage of the first stacking rack design requirements to consider the characteristics of insulating glass, stacking rack to have a certain inclination. But the bottom plane and the side should always maintain a 90 degree, so that the two glass bottom of the insulating glass can be vertically placed on the stacking rack.
Also note that the bottom of the glass should not be stained with grease, lime and other capacitive agents, because of their second seal of insulating glass will have a different degree of erosion effect, thus affecting the sealing performance of insulating glass.
In order to improve the insulating glass insulation effect, now many manufacturers of insulating glass to take out the air inside the hollow glass into the inert gas, such a process makes the performance of insulating glass has been further improved.