Preparation method of bidirectional bullet-proof glass

Abstract

The invention provides a preparation method of bidirectional bullet-proof glass. The preparation method comprises the following steps of preparation of raw materials: cutting the glass raw sheet, grinding the edges, cleaning, printing, drying, and hot bending, so as to enable the glass raw sheet to reach the required bending degree; cutting a thermoplastic resin board by a water jet scalpel according to the required pattern, cleaning the surface after cutting, putting the thermoplastic resin board into a sheet combining chamber to dehumidify after cleaning, putting the dehumidified thermoplastic resin board between the two glass raw sheets after hot bending, pushing into an oven, baking and bending; sheet combining: sequentially laminating the glass raw sheet with thickness of 4 mm, a PVB(polyvinyl butyral) film with thickness of 0.76 mm, a TPU (thermoplastic polyurethane) film with thickness of 0.65 mm, the thermoplastic resin board with thickness of 1.5 mm, a TPU film with thicknessof 0.65 mm, the thermoplastic resin board with thickness of 1.5 mm, a TPU film with thickness of 0.65 mm, a PVB film with thickness of 0.76 mm, and the glass raw sheet with thickness of 4 mm.

Description

technical field [0001] The invention belongs to the field of production technology of bulletproof glass, and more specifically relates to a preparation method of two-way bulletproof glass. Background technique [0002] Bulletproof glass is a single composite material specially processed by glass or plexiglass and high-quality engineering plastics, so the bulletproof glass produced by different manufacturers is also different. But most use layers of a special polycarbonate material sandwiched between ordinary layers of glass. In the process, a substance is formed that resembles but is thicker than normal glass. Polycarbonate is a hard, transparent plastic. The thickness of the bulletproof glass is between 7mm and 75mm. When shot on the bulletproof glass, the outer bulletproof glass will also be penetrated by the bullet, but this special polycarbonate material layer can absorb the energy of the bullet, thus preventing it from penetrating. The inner layer of transparent glas...

AI Technical Summary

Problems solved by technology

The thickness of the bulletproof glass is between 7mm and 75mm. When shot on the bulletproof glass, the outer bulletproof glass will also be penetrated by the bullet, but this special polycarbonate material layer can absorb the energy of the bullet, thus preventing it from penetrating. transparent glass interior

Large pieces of bulletproof glass like these have been used for public purposes during the Second World War. Usually its thickness is 10.0cm to 12.0cm, and it is very heavy. This type of glass is often only suitable for the gate of the financial system. The scope of application is relatively narrow. At present, the structure of bulletproof glass is generally composed of multiple layers of glass and a layer of polycarbonate plate. The quality is too heavy and the cost is high. It will increase the weight of the car and increase fuel consumption, so it is not suitable for automotive applications.

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