First of all, the paper introduces the type of insulating glass and the national standard of hollow glass. The five indexes: 1 initial dew point, 2 sealing test, 3 UV irradiation, 4 high temperature and humidity, 5 climate cycle test and so on. How to produce hollow glass with the national standard, GB/T11944-2002?
First of all, we first understand the classification of insulating glass: the current domestic market, there are two kinds of hollow glass.
1, groove aluminum hollow glass: this kind of hollow glass is introduced in 80 time is relatively mature, but the processing technology is more complex.
2, plastic hollow glass: this kind of hollow glass in China has just started, but the manufacturing process is simple, so the application scope is wide, the promotion is very fast.
Tianxiang glass machinery will be a brief introduction on the basic processing process of hollow glass. Since the two kinds of hollow glass have many similarities in the process flow, they are the common process flow.
1, glass cutting material
Glass is generally colorless float glass or other colored glass, glass, tempered glass, laminated glass, the thickness of the general 3-12mm, the above glass must comply with the provisions of the GB11614 in the first grade goods, the use of the test can be used. Glass cutting can be performed by hand or machine, but should be guaranteed to meet the size requirements. The procedures of workers in operation process, should always pay attention to scratch the surface of the glass is not allowed, uniform er shall not have bubbles, slag and other obvious defects clip.
2, glass washing and drying
Cleaning must be used in cleaning the machine, because the manual cleaning can not guarantee the quality of cleaning. Before cleaning the glass must be tested without scratches, in order to ensure the bonding of the sealant and glass, the best use of de ionized water. In addition to ensure the use of water, water resources, can be filtered to ensure long-term use. After cleaning the glass through light inspection, inspection of glass surface with drops of water, water stains and other stains, if the drops of water, water stains and other stains, you need to adjust the machine running speed, heating temperature, air flow, brush clearance, until it reaches the perfect effect so far. After washing the glass should be within 1 hours of assembly into a hollow glass, in addition to ensure that the glass and glass do not scratch the friction between, preferably a half finished glass storage car, the glass sheet and the glass.
3. The assembly of hollow glass and aluminum hollow glass
Rubber strip type hollow glass assembly:
(1) the requirement to the environment: the temperature and the processing temperature of the rubber strip type hollow glass should be between 10-20 degrees in winter, and the summer should be between 20-30 degrees.
(2) the relative humidity requirements: because the rubber type hollow glass desiccant is powder, and the adhesive mixture evenly after the desiccant to play a slower, so should ensure that the assembly area of the adhesive is slightly lower.
4, aluminum hollow glass assembly
(1) the demand for the environment: the temperature should be between 10-30 degrees
(2) the relative humidity requirements: such insulating glass to the relative humidity of the requirements of a little lower, normal circumstances can be. But it should be noted that the desiccant should choose the regular manufacturers of qualified products, in order to ensure the effective use of desiccant. Desiccant Kaifeng is better than twenty-four hours after the run out, because of the high permeability of butyl rubber, poor sealing, so the use of double seal. With butyl rubber as the first seal, which plays a role of the Yin and the gas. With double component adhesive as the second seal, the main role is to bond, the second is the role of gas separation. Practice has proved that only 5 years of a single sealed insulating glass life, while the double seal of the hollow glass life can be up to 20 years or even more than 40 years, so now it is basically the use of hollow glass double seal.
5, glass sheet
Plastic strip type hollow glass pressing to pay attention to the edge of a piece of glass to align, cut in the back of a small mouth, so that the dry gas from the mouth overflow, then sealed immediately after the completion of the processing of plastic hollow glass. Aluminum hollow glass, aluminum frame and glass edge after the film should be 5 ~ 7mm distance, used to paint second sealant, double component adhesive should be evenly along one side of the coating, to prevent the bubble, coated with the residual surface, so that the completion of plastic hollow glass processing.