Home > News > Industry News > Laminated glass manufacturing process
Customer case
Technical documentation
Industry News
Company News
Latest News

How many glasses do you want to know?

  Glass Common sense:    A weight box of glass is about 50 kg heavy and 1 tons of glass is 20 weight boxes.    The proportion of glass is: 2...

Causes and Solutions of Rainbow Ripples in Glass

According to a friend's reflection, rainbow spots appeared in the sun room that was installed soon. How can this be good? The Everyone lov...

How to distinguish between silver mirror and aluminum mirror?

Aluminum mirrors are also known as aluminized mirrors, aluminum mirrors, glass mirrors, mirror glass, mirror glass. The high-reflection aluminum mirro...

Tempered glass analysis of the common problems and solutions

Tempered glass of appearance quality problem has many performance form, we according to its appeared in production process in the stage of different, ...

Why do you want to put kerosene in glass cutter?

Kerosene increases the surface tension of the glass, does not blast, and the cut surface is smooth. If you use a glass knife, it is not rubbed.glassOn...

The difference between float glass and white glass

  Glass is indispensable in the decoration, one of the most basic is the doors and Windows, there are many kinds of glass, glass, art glass,Tempered...

Definition of privacy Glass

Many people see the name of privacy glass when the heart will silently OS: "What is this ghost?" In fact, the rear side of the privacy glass, refers t...

Advantages and disadvantages of glass curtain wall

  1, the advantages of glass curtain wall   Glass curtain wall building aesthetics, function, building energy efficiency and structural fact...

What is the difference between laminated glass PVB and SGP?

Early laminated glass generally used laminated glass produced by PVB film; since PVB film was developed for automotive glass rather than for the build...

Method for replacing glass in glass curtain wall

The glass is mainly divided into two major categories: flat glass and deep-processed glass. Among them, there are three main types of flat glass: the ...
Contact Us
Company Name: Qingdao Hongxiang Fanyu Trading Co., Ltd. Address: Room 308,  NO.877 A, Chongqing Road, Licang District, Qingdao City, Shandong Province, China  Tel: 0086-18300250107  
Contact Now


Laminated glass manufacturing process

fanyumaoyi 2017-01-13 09:58:44
  PVB laminated glass used in a wider range, which is the first to be used in industrial glass laminated resin. Glass sandwich manufacturing process, autoclave pressure, this layer is the manufacturing process, which is laminated glass key parts of the manufacturing process. Application of this material until today still occupy an important position in the industry. Laminated glass manufacturing process are: selection, save PVB film, room environment, glass cleaner, slide, preheated preloading operation, autoclave glass technology.
  In the production process,Laminated glassIn the process, preheating preloading technology, glass crafts, glass in the autoclave operation these types of production process, is a difficult process in the production process, analysis and research on these links, is the key to ensure the quality of the laminated glass link. In-depth discussion of this part of the production process.
  1, merging process
  On glass for collection tablets operation Shi, first to select for glass width of PVB film, and to keep film of clean, avoid with hand directly received angle film and glass, will PVB film natural exhibition flat, don't stretch, on align glass of both inside and outside tablets, cannot has uneven sense, to view reserved of logo whether coincide, then resection extra of film, in for cutting operation Shi, to makes blade keep tilt, in collection tablets edge left out 0.5mm~2mm film, to avoid film contraction caused shrink film phenomenon. Well after the film and glass, vacuum rubber band, and look at the seal, in force should be uniform around the glass, and then cold smoked glass make the air in the middle of completely removed, and cold extraction time should not be less than 5min.
  2, preheat the glass pre-press technology
  Glass clip good PVB film, after taking the air, closed well to preheat glass preloading operation. Preheating of the preloading operation equipment there are three, a warming preset voltage, due to its simplicity and low investment, low energy consumption, so is favoured by a number of manufacturers. But the drawback is the low efficiency of preheating pressure Chamber, unable to adapt to industrial production; preheating drive vertical and horizontal presses, both high mechanical efficiency in production, suitable for large-scale production. Difference is, when placed in glass complete your preheated surcharging, placement of glass, one State, one is laid flat. Vertical air Preheat press the glass taking action, little impact on the curvature of the glass. Horizontal air Preheat press the glass taking action, because glass flat, under the influence of its own gravity and vacuum pressure, have an impact on the curvature of the glass. Horizontal pre pre press in more suitable for glass making.
  3, glass in the autoclave process
  Autoclave process is the last step of laminated glass. After preheating preloading of glass, in order to make the PVB film and glass better glued together, but also through constant pressure, can be used. Constant pressure in the autoclave operation, semi-finished products of the first laminated glass bonded together, each slice are isolated, into the autoclave on a dedicated bench, and make it strong, then door closed Kettle, kettle gas under pressure, when reactor pressure reaches around 0.75MPa, and stop the inflatable vessel. This is because the edge of the laminated glass not bond securely, in order to make a glass sandwich under the pressure of space in the middle of overflow, instead of having air enter the mezzanine from the edge. Kettle when the internal temperature reaches 130 degrees, stop heating, and maintain this temperature. At laminated glass has can bonded, on Kettle within for two times pressure, due to glass has reached bonded temperature, so this pressure not makes air into sandwich in the, stay pressure reached 1.2MPa Shi, stop pressure and keep pressure balance, continued after 1h~1.5h yihou, reduced Kettle within of temperature to 50 ℃ Shi, began on Kettle within for exhaust buck, until air completely discharge, opened Kettle door launched glass. Laminated glass production at this point, and finishing touches, that is, glass-by-check, for qualified products, trim. Removed redundant around film; for glass with bubbles and degumming selected patch back into the reactor pressurized heating.
  With the improvement of production, most of the autoclave has the function of automatic control, in practice, according to the characteristics of laminated glass and the actual situation, for processing.
laminated glass