What is the operating steps for producing laminated glass using silicone vacuum bag?

1. Place a flat glass on a horizontal mold;

2. Lay several layers of EVA film on the flat glass;

3. Place another piece of flat glass;

4. Cover the end with a release film, fix the position with pressure-sensitive tape, and lay a breathable felt at the edges of the flat glass to prevent the vacuum bag from being punctured;

5. Cover the flat glass with a vacuum bag and seal the vacuum bag with a sealing strip;

6. Install the vacuum valve and connect the vacuum pipe with a quick connector;

7. Vacuum pumping;

8. Heat to 120-130 ℃ in an oven and keep warm;

9. Cool to room temperature and remove the laminated glass from the oven;

10. Remove demolding film, breathable felt, and vacuum bag;

11. Place the laminated glass into a hot press jar, heat and apply pressure, and press the laminated glass to the required thickness;

The purpose of using release film during the manufacturing process is:

1. Prevent the film from melting and sticking to the vacuum bag, prevent the film from being partially torn off during demolding, improve the appearance of the product, and facilitate demolding;

2. After the film melts, it can overflow in an appropriate amount, but the overflow amount will not be too much, keeping the glass edge flat.