Production process of laminated glass

A technology of laminated glass and production process, applied in the field of production process of laminated glass, can solve the problems of edge bubble degumming, interlayer inclusions, glass bursting, etc.

Inactive Publication Date: 2014-03-12
芜湖市兴业特种玻璃有限责任公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In the traditional laminated glass production process, there are phenomena such as cracking, out-of-tolerance glass radian, degumming of edge bubbles, edge shrinkage, and inclusions in the middle layer of the combined glass, but there is no complete process standard or method to control

Method used

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Embodiment Construction

[0014] 1. Storage conditions of PVB film:

[0015] Put the PVB film into the lamination chamber, the temperature of the lamination chamber is 20-25°C; 2. Humidity: 25-32%RH.

[0016] 2. The dehumidifier must be turned on 20 hours in advance before use, and the PVB film must be stored in a 24-hour air-conditioned room for preservation.

[0017] 3. Conditions for glass lamination:

[0018] 1. Glass surface temperature: (18~25)℃;

[0019] 2. Temperature of PVB film: (15~25)℃;

[0020] 3. When assembling the film, the film should be flat and not overlapped, and the film should not be pulled by force;

[0021] 4. After trimming, (2-5) mm film should be left on the edge to prevent shrinkage.

[0022] 4. Pre-pressurized exhaust

[0023] The combined laminated glass must be pre-pressed and exhausted. The glass is exhausted through the first rolling extrusion, so that the air between the glass and the interlayer film is rolled out, and heated by the constant temperature section to...

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Abstract

The invention discloses a production process of laminated glass. The production process comprises the following steps of (1) selection and storage of polyvinyl butyral (PVB) adhesive sheets; (2) glass wiping, (3) sheet combination operation; (4) pre-pressing exhaust; and (5) high-pressure molding. Under the control action of a standard process, bubbles can be prevented from being formed at the edge of the laminated glass; meanwhile, the phenomena of explosion, glass radian out-of-tolerance, edge bubble adhesive failure, edge adhesive shrinkage, interlayer inclusion and the like are effectively controlled.

Description

technical field [0001] The invention relates to a production process of laminated glass. Background technique [0002] As an important form of safety glass, PVB laminated glass has high impact resistance and penetration resistance, no fragments splash after being broken, and can also reduce noise pollution to a certain extent. It has a wide range of applications and is widely used In automotive, construction, security and other related fields. [0003] In the traditional laminated glass production process, there are phenomena such as cracking, out-of-tolerance glass radian, degumming of edge bubbles, edge shrinkage, and inclusions in the middle layer of the combined glass, but there is no complete process standard or method to control it. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a production process that must have control standards and processes during temperature rise, pressure rise, temperature drop, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C27/12
Inventor 洪祥
Owner 芜湖市兴业特种玻璃有限责任公司
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