A method for manufacturing laminated glass based on thermocompression forming process

Abstract

The invention provides a method for manufacturing laminated glass based on a hot-press molding process; during a process of hot-press molding of the laminated glass, glass after laminating is not put in a vacuum bag, but silica gel and other high-temperature-resistant sealing materials are smeared on side faces of the peripheries of two glass plates and an interlayer, so that the sealing materials initially fix the laminated glass for avoiding the glass plates shifting while sealing the interlayer; an aspirating hole is reserved at one position of an adhesive sheet at the middle, and after the interlayer is vacuumized, the reserved aspirating hole is plugged to ensure the vacuum environment of the interlayer. According to the method, a vacuum bag in the prior art is omitted, only cotton cloth, lint or other flexible materials are required to be laid between contact faces of the lower glass plate in a die and a grinding device, and the upper surface of the upper glass plate is not required to be laid with the flexible materials; the upper surfaces of the glass plates do not produce indentation in the hot-press molding process, and only a part contacted with the die is required to be polished during post processing, so that the workload is saved, the rate of finished products is improved, and thus the goods delivery time is shortened.

Description

technical field [0001] The invention belongs to the technical field of glass manufacturing, and relates to a method for manufacturing laminated glass, in particular to a method for manufacturing laminated glass based on a thermocompression forming process. Background technique [0002] Laminated glass is a kind of composite glass product that has new functions through the interlayer composed of two or more glass plates composed of intermediate film and silk screen, which is firmly bonded together. The interlayer is generally a transparent organic material. Laminated glass has high impact resistance and penetration resistance. When it is broken by impact, no matter it is installed vertically or obliquely, it can effectively resist unexpected external impact, thus playing a role of safety protection, while maintaining a certain amount of visible light. Transmittance, so laminated glass is also called laminated safety glass. At present, in the production of laminated glass, th...

AI Technical Summary

Problems solved by technology

[0003] Commonly used laminated glass manufacturing methods include grouting method (wet method) and lamination method (dry method). Among them, the grouting method is generally a manual molding method with a simple process and is suitable for small-scale production. However, there are many factors that affect product quality due to human factors. , not suitable for mass production, and the performance of the product is worse than that of the lamination method; the lamination method adopts a hot pressing forming process, which is suitable for mass production and has good product performance, so this method has become a commonly used manufacturing method for laminated glass

[0004] The existing laminated glass thermoforming process is to fix the combined two glass plates on the mould, put the mold as a whole into a vacuum bag to evacuate, because the vacuum bag is generally made of plastic material, under a certain pressure and temperature It will stick to the surface of the glass and cause surface defects. In order to avoid sticking, flexible materials such as non-shedding flannelette are usually laid between the glass and the vacuum bag. However, after laying the flexible material, irregular mesh indentations will appear on the glass surface. , which brings great difficulties to the later polishing work

Images