[Medium glass] A small spherical shape formed by bubbles, air or other volatile gases, and dense bubbles appear in the middle or at the edges of the laminated glass.
1. Causes of air bubbles
a. Poor exhaust; the rolling speed is incorrect, the rolling temperature is too low or too high.
b. The grain of the film is too thin.
2. Processing method
a. Adjust the process parameters of the roller pressure degassing to improve the degassing and edge sealing effect.
b. Select the appropriate film for the exhaust pattern.
Air bag, non-spherical air bag appears on the inner surface of the glass, large or small irregular, in the middle or side of the laminated glass, often occurs in the autoclave, and in some cases the film texture can be seen .
3. Causes the air bag
a. There is a gap or gap between the paired glass sheets.
b. There are glass crumbs or foreign objects on the surface of the glass and film.
c. There are dents or bumps on the film or glass.
4. Processing method
a. Check the fit of the mating glass during the splicing to avoid stacking and gaps.
b. The surface of the glass and film must be cleaned and free of any foreign matter on the film and glass surface.
c. Check the film and glass when splicing to avoid dents and bumps in the middle.
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